1 Scope
This part of GB/T 20046 specifies the terms and definitions of test method for bipolar plate properties of proton exchange membrane fuel cell, the gas tightness test, flexural strength test, density test, resistance test, corrosion current density test, etc. for bipolar plate materials as well as the gas tightness test, resistance drop test, area utilization test, thickness uniformity test, flatness test, weight test, resistance test, etc. for bipolar plate components.
This part is applicable to bipolar plate materials and components for various proton exchange membrane fuel cells. This standard is mainly divided into two parts: test for bipolar plate material properties and test for bipolar plate component properties.
2 Normative references
The following documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.
GB/T 7962.20-1987 Colourless optical glass test methods; Density
GB/T 13465.2-2002 Test method for flexure strength of impermeable graphite materials
GB/T 19922-2005 Standard test methods for measuring site flatness on silicon wafers by noncontact scanning
GB/T 20042.1 Proton exchange membrane fuel cell - Terminology
JJG 508-2004 Verification regulation of resistivity measuring instruments with four-probe array method
3 Terms and definitions
For the purposes of this part, the terms and definitions given in GB/T 20042.1 and the following apply.
3.1
corrosion current density
Foreword i
1 Scope
2 Normative references
3 Terms and definitions
4 Gas tightness test for bipolar plate materials
5 Flexural strength test for bipolar plate materials
6 Density test for bipolar plate materials
7 Resistance test for bipolar plate materials
8 Corrosion current density test for bipolar plate materials
9 Gas tightness test for bipolar plate components
10 Resistance drop test for bipolar plate components
11 Area utilization test for bipolar plate components
12 Thickness uniformity test for bipolar plate components
13 Flatness test for bipolar plate components
14 Weight test for bipolar plate components
15 Resistance test for bipolar plate components
16 Test preparation and report
Annex A (Informative) Test preparation
Annex B (Informative) Test report
