SCHEDULE A


                                  TO THE 


                         LNG SALES AND PURCHASE CONTRACT

                               (KOREA II FOB)


                                  between


                         PERUSAHAAN PERTAMBANGAN MINYAK DAN GAS BUMI
NEGARA 
                                (PERTAMINA)


                                                  as Seller

                                    and


                           KOREA GAS CORPORATION


                                                  as Buyer

SCHEDULE A
TESTING AND METHODS


     This Schedule A, entitled "Testing and Methods", is attached
to and forms a part of the LNG Sales and Purchase Contract
("Contract") between Pertamina, as Seller, and Korea Gas
Corporation, as Buyer, and sets forth, pursuant to Article 13 of
the Contract, detailed procedures for sampling and analysing LNG
and for gauging and calculating the density and heating value of
LNG.

SECTION I - DEFINITIONS

Terms defined in the Contract and appearing in this Schedule A
shall, when used herein, have the meanings set forth in the
Contract.


SECTION II - TANK GAUGE TABLES


II.1 Calibration of LNG Tanks

     During or immediately following  the completion of
     construction of each vessel which Buyer intends to use as an
     LNG Tanker, Buyer shall arrange for each LNG tank of each such
     vessel to be calibrated by a qualified surveyor mutually
     agreed  upon by Buyer and Seller.

II.2 Preparation of Tank Gauge Tables

     Buyer shall have a qualified surveyor prepare tank gauge
     tables  for  each  LNG  tank  of each vessel which Buyer
     intends to use as an LNG Tanker from the results of the
     calibration referred to in Section II.1 above.  Such tank
     gauge tables shall include sounding  tables, correction tables
     for list (heel)  and  trim, volume  corrections   to  tank 
     service temperature, and other corrections if necessary.  The
     tank gauge tables prepared by  such  surveyor shall be
     verified for use by the authorized agency of the Republic of
     Korea and the Republic of Indonesia.

II.3 Accuracy of Tank Gauge Tables

     The tank gauge tables prepared pursuant to Section II.2 above
     shall indicate volumes in Cubic Meters expressed to the 
     nearest  thousandth, with  tank  depths expressed in meters to
     the nearest hundredth.

II.4 Witnessing of Tank Calibration

     Seller shall have the right to have its representative witness
     the tank calibrations referred to in Section II.1 above. 
     Buyer shall give adequate advance notice to Seller of the
     timing of such tank calibrations.

II.5 Recalibration of LNG Tanks in Case of Distortion

     In the event that any LNG tank of any LNG Tanker suffers
     distortion of such a nature as to cause any party reasonably
     to question the validity of the tank gauge tables referred to
     in Section II.2 above, Buyer, subject to Seller's consent,
     shall arrange for such LNG tank to be recalibrated in the same
     manner as set forth in Sections II.1 and II.2 hereof during
     any period when such is out of service for inspection and/or
     repairs.  Buyer shall bear the costs of recalibration unless
     such recalibration was done at Seller's request and did not
     demonstrate any inaccuracy in the tank gauge tables, in which
     case Seller shall pay the costs of recalibration.  Except as
     provided in this Section II.5, no other recalibration of any
     LNG tank of any LNG Tanker shall be required.

SECTION III - SELECTION OF GAUGING DEVICES


III.1  Liquid Level Gauging Devices

       III.1.1    Each LNG tank  of  each  LNG Tanker shall  be
                  equipped with a main and an auxiliary liquid
                  level gauging device.

       III.1.2    The  measurement  error  of  the  liquid  level
                  gauging devices shall be no greater than +10
                  millimeters.  The expected accuracy for the main
                  gauging device shall be +7.5 millimeters and for
                  the auxiliary gauging device shall be  +10
                  millimeters.  

       III.1.3    The  level in each LNG tank shall be  logged or
                  printed.

III.2  Temperature Gauging Devices

       III.2.1    Each LNG tank of each LNG Tanker shall be
                  equipped with a minimum of four (4) temperature
                  gauging devices located on or near the vertical
                  axis of such LNG tank.

       III.2.2    Such  temperature  gauging   devices  shall  be
                  installed near the bottom, at approximately fifty
                  percent (50%) of the height, at approximately
                  eighty-five percent (85%) of the height and at
                  approximately one hundred percent (100%) of the
                  height of such LNG tank.

       III.2.3    The measurement error of the temperature gauging
                  devices shall be no greater than +2C.  The
                  expected accuracy shall be +0.2oC when in liquid
                  and +0.4oC when in vapor.

       III.2.4    The temperatures in each LNG tank shall be logged
                  or printed.

III.3  Pressure Gauging Devices

       III.3.1    Each LNG tank of each LNG Tanker shall have one
                  absolute pressure gauging device.

       III.3.2    The  measurement error of the pressure gauging
                  device shall be no greater than + one percent
                  (1%) of full-scale.  The expected accuracy shall
                  be +0.01 kg/cm2.

       III.3.3    The pressure in each LNG tank shall be logged or
                  printed.

III.4  Verification of Accuracy of Gauging Devices

       Gauging devices shall be verified for accuracy and corrected
       for error in accordance with the terms of Subarticle 13.10 of
       the Contract.

SECTION IV - MEASUREMENT PROCEDURES

IV.1   Liquid Level

       IV.1.1     Measurement of the liquid  level  in  each  LNG
                  tank of each LNG Tanker shall be made to the
                  nearest millimeter by using the main liquid level
                  gauging device referred to in Section III.1
                  hereof.  Should the main device fail, the
                  auxiliary device shall be used.

       IV.1.2     Three (3) readings  shall be  made in as  rapid
                  succession as possible.  The arithmetic average
                  of the readings shall be deemed the liquid level.

       IV.1.3     Such arithmetic average shall be  calculated to
                  the nearest 0.1 millimeter and shall be rounded
                  to the nearest millimeter.

IV.2   Temperature

       IV.2.1     At the  same  time  liquid  level  is measured,
                  temperature shall be measured to the nearest
                  0.1oC by using the temperature gauging devices
                  referred to in Section III.2 hereof.

       IV.2.2     In  order  to   determine  the  temperature  of
                  liquid and vapor in the LNG tanks of an LNG
                  Tanker one (1) reading shall be taken at each
                  temperature gauging device in each LNG tank.  An
                  arithmetic average of such readings with respect
                  to vapor and liquid in all LNG tanks shall be
                  deemed the final temperature of vapor and liquid.

       IV.2.3     Such arithmetic average shall be calculated  to
                  the nearest 0.01oC and shall be rounded to the
                  nearest 0.1oC.

IV.3   Pressure

       IV.3.1     At the same time liquid level is measured,  the
                  absolute pressure in each LNG tank shall be
                  measured to the nearest 0.01 kg/cm2 by using the
                  pressure gauging device referred to in Section
                  III.3 hereof.

       IV.3.2     The determination of the absolute  pressure  in
                  the LNG tanks of each LNG Tanker shall be made by
                  taking one (1) reading of the pressure gauging
                  device in each LNG tank, and then by taking an
                  arithmetic average of all such readings.

       IV.3.3     Such arithmetic average shall be calculated  to
                  the nearest 0.001 kg/cm2 and shall be rounded to
                  the nearest 0.01 kg/cm2.

IV.4   Procedures in Case of Gauging Device Failure

       Should the measurements referred to in Sections IV.l, IV.2
       and IV.3 hereof become impossible to perform due to a failure
       of gauging  devices, alternate gauging procedures shall be
       determined by mutual agreement between Buyer and Seller.

IV.5   Determination of Volume of LNG Loaded

       IV.5.1     The  list  (heel)  and  trim  of the LNG Tanker
                  shall be measured at the same time as the liquid
                  level and temperature of LNG in each LNG tank are
                  measured.  Such measurements shall be made
                  immediately before loading commences and
                  immediately after loading is completed.  The
                  volume of LNG, stated in Cubic Meters to the
                  nearest 0.001 Cubic Meters, shall be determined
                  by using the tank gauge tables referred to in
                  Section II hereof and by applying the volume
                  corrections set forth therein.

       IV.5.2     The volume of LNG loaded shall be determined by
                  deducting the total volume of LNG in all tanks
                  immediately before loading commences from the
                  total volume in all tanks immediately after
                  loading is completed.  This volume of LNG loaded
                  is then rounded to the nearest Cubic Meter.

SECTION V - DETERMINATION OF COMPOSITION OF LNG

V.1    Sampling Procedures

       V.1.1      Representative samples of LNG shall be obtained
                  continuously and at an even rate during the
                  period starting immediately after continuous
                  loading has commenced and ending immediately
                  prior to the suspension of continuous loading.

       V.1.2      A composite gaseous sample shall be  collected in
                  a suitable gas holder using a continuous
                  gasification/collection method agreed upon by
                  Seller and Buyers.

       V.1.3      Three (3) samples shall be transferred from the
                  gas holder to sample bottles after completion of
                  loading.  Such sample bottles shall be sealed by
                  the surveyor who witnessed such sampling in
                  accordance with Subarticle 13.8 of the Contract
                  and shall be delivered to Seller.  Seller shall
                  use one (1) such sample for analysis to determine
                  the composition.

       V.1.4      Distribution of Samples

                  The gaseous samples shall be distributed as
                  follows:

                         First sample:  for analysis by Seller.

                         Second sample: for  analysis by Buyer.

                         Third sample:  for retention by Seller
                                        for at least twenty-five
                                        (25) days.  In case any
                                        dispute as to the accuracy
                                        of any analysis is raised,
                                        the sample shall be further
                                        retained until Buyer and
                                        Seller agree to retain it
                                        no longer.
       V.1.5        Failure   in   Collecting   Samples   and  in
                    Determining the Composition of LNG -  

                    If sampling and/or analysis fails for some
                    reason, the arithmetic average of the analysis
                    results of the five (5) immediately preceding
                    cargoes (or of the total cargoes delivered is
                    less than five) under this Contract from the
                    applicable Loading Port shall be deemed to be
                    the composition of the LNG.  The loaded BTUs
                    and metric tons are calculated as follows:

                           E5 (BTU/m3) X Vm3 loaded = BTU
                           E5 (Kg/m3) X Vm3 = Metric Tons  
                         
V.2    Analysis Procedures

       V.2.1        Hydrocarbons, Carbon Dioxide and Nitrogen  -
                    Seller's sample shall be analysed immediately
                    by Seller to determine, by gas chromatography,
                    the mol fraction of hydrocarbons, carbon
                    dioxide and nitrogen in the sample.  The method
                    used shall be the method described in the
                    latest version of the Gas Processors
                    Association (GPA) Publication 2261 current at
                    the time of analysis or any other method agreed
                    upon by Buyer and Seller.  Duplicate runs shall
                    be made on each sample to determine that the
                    repeatabilities of peak heights or peak areas
                    are within acceptable limits.  The calculated
                    results of such duplicate runs shall be
                    averaged.

       V.2.2        Hydrogen Sulfide - The ASTM D 2725-70, Standard
                    Method of Test for Hydrogen Sulfide in Natural
                    Gas (Methylene Blue Method), shall be used to
                    determine the hydrogen sulfide content of
                    Seller's sample, unless Seller and Buyer
                    mutually agree that some other method should be
                    used.

       V.2.3        Total Sulfur - The ASTM D 3246-76, Standard
                    Method of Test for Sulfur in Petroleum Gas by
                    Oxidative Microcoulometry, shall be used to
                    determine the total sulfur content of Seller's
                    sample, unless Seller and Buyer mutually agree
                    that some other method should be used.

                    If the total sulfur content is less than 0.25
                    grains per 100 Standard Cubic Feet, it is not
                    necessary to analyze the sample for H2S.

V.3    Correlation Test of Analytical Equipment and Devices

       Buyer and Seller shall, prior to use and during periods of
       use, perform a correlation test using standard gas in order
       properly to maintain the accuracy of Seller's and Buyer's
       equipment and devices.

       Such correlation tests are subject to the following
       conditions:

       (a)    Mutual agreement of Seller and Buyer as to  timing of
              a test;

       (b)    The standard gas sample shall be obtained by
              Buyer;

       (c)    The standard gas sample shall be transported to the
              applicable Loading Port on an LNG Tanker;

       (d)    Seller shall analyze the sample and return it to
              Buyer on an LNG Tanker;

       (e)    Buyer shall analyze the sample; and

       (f)    The results of these tests shall be made  available to
              all Parties.

SECTION VI - DETERMINATION OF BTU QUANTITY OF LNG SOLD

VI.1   Calculation of Density

       The density of LNG shall be calculated by use of the formula:
 
                             E (Xi x Mi)     
                     D =  ___________________
                          E (Xi x Vi) - Xm x C
                    
        where:
           D     is the density to four (4) significant figures of
                 the LNG loaded, stated in kilograms per Cubic
                 Meter at temperature TL;

           TL    is the temperature of the LNG in the tanks of the
                 LNG Tanker after loading, stated in degrees
                 Centigrade to the nearest 0.1oC;

           Xi    is the mol fraction, to the nearest fourth (4th)
                 decimal place, of component (i) from the
                 composition obtained in accordance with Section V
                 hereof;

           Mi    is the molecular weight of component (i) as set
                 forth in Table 1 attached hereto;

           Vi    is the molar volume, to the nearest sixth (6th)
                 decimal place, of component (i), stated in Cubic
                 Meters per kilogram-mol at temperature TL and
                 obtained by linear interpolation of the data set
                 forth in Table 2 attached hereto;

           Xm    is the mol fraction, to the nearest fourth (4th)
                 decimal place, of methane from the composition
                 obtained in accordance with Section V hereof; and

           C     is the volume correction, to the nearest sixth
                 (6th) decimal place, stated in Cubic Meters per
                 kilogram-mol at temperature TL and obtained by
                 linear interpolation of the data set forth in
                 Table 3 attached hereto.

        An example of an LNG density calculation is shown in Table
        4 attached hereto.

VI.2    Calculation of Gross Heating Value

        VI.2.1   The Gross Heating Value (mass basis) of LNG shall
                 be calculated by use of the formula:

                                            Xi x Mi    
                           P =   E  Hi x ____________
 
                                          E (Xi x Mi)
                    
                 where:

                   P       is the Gross Heating Value of LNG,
                           stated in BTU's per kilogram;

                   Hi      is the Gross Heating Value of component
                           (i), stated in BTU's per kilogram as set
                           forth in Table 1 attached hereto;

                   Xi      is the mol fraction, to the nearest
                           fourth (4th) decimal place, of component
                           (i) from the composition obtained
                           pursuant to Section V hereof; and

                   Mi      is the molecular weight of component (i)
                           as set forth in Table 1 attached hereto.

                 An example of a Gross Heating Value (mass basis)
                 calculation is shown in Table 5 attached hereto.

        VI.2.2     The Gross  Heating  Value  (volume basis)  for
                   purposes of Subarticle 11.1 of the Contract
                   shall be calculated by use of the formula:

                           Hv =   E (Xi x Hvi)

                 where:

                   Hv      is the Gross Heating Value, stated in
                           BTU's per Standard Cubic Foot;

                   Xi      is the mol fraction, to the nearest
                           fourth (4th) decimal place, of component
                           (i) from the composition obtained
                           pursuant to Section V hereof; and

                   Hvi     is the Gross Heating Value of component
                           (i), stated in BTU's per Standard Cubic
                           Foot, as set forth in Table 1 attached
                           hereto.

                   An example of a Gross Heating Value (volume
                   basis) calculation is shown in Table 6 attached
                   hereto.

VI.3    Calculation of BTU Quantity of LNG Delivered

        The BTU quantity of LNG sold shall be computed by use of the
        formula:

                 Q = V x D x P

        where:

           Q     is the BTU quantity sold;

           V     is the volume of the LNG loaded, stated in Cubic
                 Meters, obtained pursuant to Section IV.5 hereof;

           D     is the density of the LNG, stated in kilograms per
                 Cubic Meter, as calculated in accordance with
                 Section VI.1 hereof; and

           P     is the Gross Heating Value of the LNG, stated in
                 BTU's per kilogram, as calculated in accordance
                 with Section VI.2.1 hereof.

 VI.4   Method of Rounding Numbers

        VI.4.1   General -
                 If the first of the figures to be discarded is
                 five (5) or more, the last of the figures to be
                 retained is increased by one (1).

                 If the first of the figures to be discarded is
                 four (4) or less, the last of the figures to be
                 retained is unaltered.

                 For the purpose of rounding to a zero (0), the
                 last of the figures to be retained shall have the
                 same value as a ten (10).

                 The following example is given to illustrate how a
                 number is to be established in accordance with the
                 above:

                                        Number after being
                                        rounded to first
                 Number to be rounded   decimal place  

                       2.24                     2.2
                       2.249                    2.2
                       2.25                     2.3
                       2.35                     2.4
                       2.97                     3.0

        VI.4.2   Determination of BTU Quantity of LNG delivered -
                 The BTU quantity of LNG delivered is computed by
                 the use of the formula:

                   Q = V x D x P

                 where:

                   Q       is the BTU quantity delivered.  The BTU
                           quantity shall be rounded to the nearest
                           ten (10) million BTU's;

                   V       is the volume of the LNG loaded, stated
                           in Cubic Meters.  The volume shall be
                           rounded to the nearest Cubic Meter;

                   D       is the density of the LNG, stated in
                           kilograms per Cubic Meter at temperature
                           TL.  The density shall be rounded to the
                           nearest tenth (0.1) of a kg/m3;

                   TL      is the temperature of the LNG in the
                           tanks of the LNG Tanker after loading,
                           stated in degrees Centigrade to the
                           nearest tenth (0.1) degree C; and

                   P       is the Gross Heating Value of the LNG,
                           stated in BTU's per kilogram.  The Gross
                           Heating Value shall be rounded to the
                           nearest BTU/kg.

        VI.4.3   Determination of LNG Density -

                 The density of the LNG is calculated by use of the
                 formula:

                                 E(Xi x Mi)     
                      D =   ___________________
                            E(Xi x Vi) - Xm x C

                   where:

                   D       is the density of the LNG, stated in
                           kilograms per Cubic Meter at temperature
                           TL.  The density shall be rounded to the
                           nearest tenth (0.1) of a kg/m3;


                   TL is the temperature of the LNG in the tanks of
                      the LNG Tanker after loading, stated in
                      degrees Centigrade to the nearest tenth (0.1)
                      degree C;

                      Xi   is the mol fraction, to the nearest
                           fourth (4th) decimal place, of component
                           (i) from the composition obtained in
                           accordance with Section V hereof.  The
                           mol fraction of methane shall be
                           adjusted so as to make the total mol
                           fraction equal to 1.0000;

                      Mi   is the molecular weight of component (i)
                           as set forth in Table 1 attached hereto;

                      E(Xi x Mi):

                           The  result  of   the  calculation  of
                           "Xi x Mi" of component (i) shall be
                           rounded to the nearest third (3rd)
                           decimal place, and then, "E(Xi x Mi)"
                           shall be calculated to the nearest third
                           (3rd) decimal place;

                      Vi   is the molar volume, to the nearest
                           sixth (6th) decimal place, of component
                           (i), stated in Cubic Meters per
                           kilogram-mol at temperature TL, and
                           shall be obtained by linear
                           interpolation of the data set forth in
                           Table 2 attached hereto;

                      E(Xi x Vi):

                           The   result  of  the  calculation  of
                           "Xi x Vi" of component (i) shall be
                           rounded to the nearest sixth (6th)
                           decimal place, and then "E(Xi x Vi)"
                           shall be calculated to the nearest sixth
                           (6th) decimal place;

                      Xm   is the mol fraction, to the nearest
                           fourth (4th) decimal place, of methane
                           from the composition obtained in
                           accordance with Section V hereof;

                      C    is the volume correction, to the nearest
                           sixth (6th) decimal place, stated in
                           Cubic Meters per kilogram-mol at
                           temperature TL, and shall be obtained by
                           linear interpolation of the data set
                           forth in Table 3 attached hereto;

                      Xm x C:

                           "Xm x C" shall be calculated to the
                           nearest sixth (6th) decimal place; and

                      E(Xi x Vi) - Xm x C:

                           "E(Xi x Vi) - Xm x C" shall be
                           calculated to the nearest sixth (6th)
                           decimal place.

        VI.4.4     Determination of Gross Heating Value

                   VI.4.4.1   The Gross Heating Value (mass
                              basis) of the LNG is calculated by
                              use of the formula:

                                                 Xi x Mi   
                                 P = E   Hi  x ___________
                                               E(Xi x Mi)

                             where:

                               P    is the Gross Heating Value of
                                    the LNG, stated in BTU's per
                                    kilogram.  Each term of the
                                    above equation shall first be
                                    calculated and rounded to the
                                    nearest BTU/kg, and then all
                                    terms shall be summed to obtain
                                    the Gross Heating Value "P";

                               Hi   is the Gross Heating Value of
                                    component (i), stated in BTU's
                                    per kilogram, as set forth in
                                    Table 1 attached hereto;

                               Xi   is the mol fraction, to the
                                    nearest fourth (4th) decimal
                                    place, of component (i) from
                                    the composition obtained in
                                    accordance with Section V
                                    hereof;

                               Mi   is the molecular weight of
                                    component (i) as set forth in
                                    Table 1 attached hereto;

                               Xi x Mi:

                                    "Xi x Mi" of component (i)
                                    shall be calculated to the
                                    nearest third (3rd) decimal
                                    place;

                               E(Xi x Mi):

                                    "E(Xi x Mi)" shall be
                                    calculated to the nearest third
                                    (3rd) decimal place by summing
                                    all "Xi x Mi" obtained as
                                    above;

                                   Xi x Mi    
                                 __________ :
                                 E(Xi x Mi)

                                         Xi x Mi     
                                    "  __________ "   shall be
                                       E(Xi x Mi)
                                    calculated for component (i) to
                                    the nearest fifth (5th) decimal 
                                     place  by  dividing " Xi x Mi"
                                    by " E(Xi x Mi)";

                                       Xi x Mi     
                               Hi x  __________  :
                                     E(Xi x Mi)

                                             Xi x Mi       
                                    "Hi x __________ "  shall
                                          E (Xi x Mi)
                                    be calculated for component (i)
                                    to the nearest whole number by
                                    multiplying "Hi" by

                                         Xi x Mi    
                                    " __________ " ; and 
                                      E (Xi x Mi)
                                    
                                    
                                         Xi x Mi    
                               E   Hi x _________   :
                                        E(Xi x Mi)


                                              Xi  x  Mi   
                                                               
                                 " E   Hi x  __________ "   
                                              E(Xi x Mi)

                                    shall be calculated to the
                                    nearest whole number by summing
                                    all 

                                    "         Xi x Mi  "
                                      Hi x  _________
                                            E(Xi x Mi)

                                    obtained as above.


                   VI.4.4.2    The  Gross  Heating  Value (volume
                               basis) of the LNG shall be
                               calculated by use of the formula:

                               Hv =  E(Xi x Hvi)

                             where:


                               Hv   is the Gross Heating Value of
                                    LNG, stated in BTU's per
                                    Standard Cubic Foot.  Each term
                                    of the above equation shall
                                    first be calculated and rounded
                                    to the nearest tenth (0.1) of a
                                    BTU/scf, and then all terms
                                    shall be summed and rounded to
                                    the nearest BTU/scf to obtain
                                    the Gross Heating Value "Hv";

                               Xi   is the mol fraction, to the
                                    nearest fourth (4th) decimal
                                    place, of component (i) from
                                    the composition obtained
                                    pursuant to Section V hereof;
                                    and 

                               Hvi  is the Gross Heating Value of
                                    component (i), stated in BTU's
                                    per Standard Cubic Foot, as set
                                    forth in Table 1 attached
                                    hereto.


                           TABLE 1

                                  PHYSICAL CONSTANTS


                                       Gross Heating   Gross Heating
                           Molecular   Value (BTU/kg)  Value (BTU/scf)
                             Weight       at 60oF,        at 60oF
 Component                     Mi            Hi             Hvi      
 
 
                                                  
 
 Methane (CH )               16.043        52671           1010.0
            4
 
 Ethane (C H )               30.070        49236           1769.6
          2 6
 
 Propane (C H )              44.097        47737           2516.1
           3 8
 
 Iso-butane (i-C H  )        58.123        46809           3251.9
                4 10 
 
 Normal Butane (n-C H  )     58.123        46959           3262.3
                   4 10
 
 Iso-pentane (i-C H  )       72.150        46392           4000.9
                 5 12
 
 Normal Pentane (n-C H  )    72.150        46485           4008.9
                    5 12 
 
 Normal Hexane (n-C H  )     86.177        46172           4755.9
                   6 14 
 
 Nitrogen (N )               28.013            0              0
            2
 
 Oxygen (O )                 31.999            0              0
          2
 
 Carbon Dioxide (CO )        44.010            0              0
                   2
 
 
 
 The above table of Physical Constants, developed from GPA Publication 2145-88, shall be
used for
 all density and heating value calculations associated with this Contract.  This table of
Physical
 Constants shall be revised to conform to any subsequent officially published revision of GPA
 Publication 2145.  The values for the Gross Heating Value in BTU/kg as shown above have
been
 obtained by multiplying the GPA 2145 values for "BTU/lbm fuel as ideal gas" from GPA
2145 by
 2.20462.
 
  

                                   TABLE 2
                                 MOLAR VOLUMES OF INDIVIDUAL COMPONENTS
 
 
             Molar Volumes (m3/kg-mol) at Various Temperatures x 103
             ______________________________________________________
               -162oC        -160oC        -158oC      -156oC
              _______        ______        ______      ______
  
                                        
 
 CH           37.95          38.21       38.48       38.76
   4
 
 C H          47.84          48.00       48.16       48.33
  2 6
 
 C H          62.34          62.52       62.70       62.89
  3 8
 
 i-C H        76.90          77.11       77.33       77.54
    4 10
 
 n-C H        76.63          76.82       77.01       77.20
    4 10
 
 i-C H        90.92          91.13       91.35       91.56
    5 12
 
 n-C H        90.26          90.47       90.67       90.88
    5 12
 
 n-C H       104.67         104.89      105.11      105.34
    6 14
 
 N            45.64          46.83       48.11       49.47
  2
 
 O            31.14          31.51       31.90       32.30
  2
 
 CO           29.73          29.83       29.93       30.03
   2
 
 
 
 
 
 
 
 Reference :                Density calculations and method from Proceedings of the First
International
                             Conference of LNG, April 1968, Paper No. 22, Densities of
Liquefied Natural Gas
                             and of Low Molecular Weight Hydrocarbons, J. Klosek and C.
McKinley.
 
  Note:      Molar volumes for CO2 were developed by mutual agreement between Buyer and
              Seller.
  /TABLE


                                     TABLE 3
                               CORRECTION C FOR VOLUME REDUCTION OF MIXTURE
 
 
     Molecular
        Weight       C (m /kg-mol) at Various Temperatures x 10 3
     of Mixture      ___________________________________________
                              o          o           o           o
      E(Xi x Mi)     -162 C       -160 C      -158 C      -156 C
       _______       ______       ______      ______      ______
 
                                              
     17.00            0.240        0.240       0.250       0.260
     17.50            0.360        0.370       0.380       0.390
     18.00            0.470        0.490       0.500       0.520
     18.50            0.580        0.600       0.620       0.640
     19.00            0.690        0.710       0.730       0.750
     19.50            0.790        0.810       0.840       0.860
     20.00            0.890        0.910       0.940       0.970
 
 
 
 Reference :         Density calculations and method from Proceedings of the First
International
                      Conference of LNG, April 1968, Paper No. 22, Densities of Liquefied
Natural Gas
                      and of Low Molecular Weight Hydrocarbons, J. Klosek and C. McKinley.
  /TABLE


                                           TABLE 4
                                 EXAMPLE OF LNG DENSITY CALCULATION
 
 
                                             Molar Volume       
            Mol       Molecular              Vi x 103
          Fraction     Weight                (m3/kg-mol) 
                                             at TL-158.9oC                    
            Xi           Mi   Xi x Mi        Vi             (Xi x Vi)x103
         
                                             
 CH       0.9128    16.043    14.644         38.359         35.014
   4
 
 C H      0.0539    30.070     1.621         48.088          2.592
  2 6    
 
 C H      0.0241    44.097     1.063         62.619          1.509
  3 8      
 
 i-C H     0.0043   58.123     0.250         77.231          0.332
    4 10    
 
 n-C H    0.0044    58.123     0.256         76.925          0.338
    4 10
 
 i-C H    0.0001    72.150     0.007         91.251          0.009
    5 12  
 
 N2        0.0004   28.013     0.011         47.534         0.019
         _______              ______                       _______
 
 
 Total    1.0000              17.852                        39.813
 
 
 
 
 
 
     Average Molecular Weight = 17.852
 
     Average Molar Volume = 39.813
 
 
                    -3       
      C = 0.460 x 10  
 
                                  17.852               
              D = ________________________________________
                              -3                      -3
                   39.813 x 10   - 0.9128 x 0.460 x 10  
 
 
                              17.852          
                =  _______________________________
                              -3             -3
                   39.813 x 10   - 0.420 x 10  
 
 
                                3
                =  0.453177 x 10
 
 
                             3
              D =  453.2 kg/m
  /TABLE


                                               TABLE 5
 
                       EXAMPLE OF GROSS HEATING VALUE (MASS BASIS)
CALCULATION
 
 
                                                                         Gross
 
            Mol      Heating Value    Molecular         Heating Value 
 
           Fraction  (BTU/kg)        Weight                                     
                                                        Hi x Xi x Mi   *
                                                  
             Xi        Hi             Mi        (Xi x Mi)          E(Xi x Mi)
         _______   ______         _______       _________         ___________
                                                  
 
 CH       0.9128    52671          16.043         14.644         43206
   4
 
 C H      0.0539    49236          30.070          1.621          4471
  2 6    
 
 C H      0.0241    47737          44.097          1.063          2843
  3 8   
 
 i-C H    0.0043    46809          58.123          0.250           655
    4 10   
 
 n-C H    0.0044    46959          58.123          0.256           673
    4 10   
 
 i-C H    0.0001    46392          72.150          0.007            18
    5 12   
 
 N2       0.0004        0          28.013          0.011
 
 
 Total    1.0000                   17.852                        51866
 
 
     * Rounded to the fifth (5th) decimal place
 
     P = 51866 BTU/kg
 
  /TABLE


                           TABLE 6
 
 
                      EXAMPLE OF GROSS HEATING VALUE (VOLUME BASIS)
CALCULATION
 
 
                                                 
                                    
 Component         Mol Fraction       Gross Heating   
                                           Value, Hvi            
                                        (BTU/scf)
                         Xi                    Hvi      (Xi x Hvi)
 
                                             
 CH                0.9128           1010.0            921.9
   4
 
 C H               0.0539           1769.6             95.4
  2 6
 
 C H               0.0241           2516.1             60.6
  3 8
 
 i-C H             0.0043           3251.9             14.0
    4 10     
 
 n-C H             0.0044           3262.3             14.4
    4 10  
 
 i-C H             0.0001           4000.9              0.4
    5 12
 
 N                 0.0004              0                  0
  2
 
                                                                
 Total             1.0000                             1106.7  
                                                                 
                                                                 
 
                   Hv = 1107 BTU/scf