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See Chinese contents: GB/T 20042.7-2014 GB/T 20042.7-2014: Proton exchange membrane fuel cells -- Part 7: Test method of carbon paper properties
This Part of GB/T 20042 specifies terms and definitions, thickness uniformity test, electrical resistance test, mechanical strength test, air permeability test, porosity test, bulk density test, areal density test, roughness test and test report for test method of carbon paper properties of proton exchange membrane fuel cells.
