EXHIBIT 14.1 CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM We hereby consent to the incorporation by reference in the Registration Statements on Form S-8 (no. 333-01824 and no. 333-105611) of The BOC Group plc of our report dated 22 November 2004 relating to the consolidated financial statements, which appears in The BOC Group plc Annual Report on Form 20-F for the year ended September 30, 2004. /s/ PricewaterhouseCoopers LLP - ------------------------------------ PricewaterhouseCoopers LLP London, England 6 December 2004