View Historical Standards for B640:

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Document Designation and Title Year Select Item(s) B640 Standard Specification for Welded Copper Tube for Air Conditioning and Refrigeration Service 12 B640 Standard Specification for Welded Copper Tube for Air Conditioning and Refrigeration Service 07 B640 Standard Specification for Welded Copper Tube for Air Conditioning and Refrigeration Service 00(2006) B640 Standard Specification for Welded Copper Tube for Air Conditioning and Refrigeration Service 00