GB/T 37244-2018 PDF English
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Fuel specification for proton exchange membrane fuel cell vehicles -- Hydrogen
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GB/T 37244-2018: PDF in English (GBT 37244-2018) GB/T 37244-2018
GB
NATIONAL STANDARD OF THE
PEOPLE’S REPUBLIC OF CHINA
ICS 71.100.20
G 86
Fuel Specification for Proton Exchange Membrane
Fuel Cell Vehicles - Hydrogen
ISSUED ON. DECEMBER 28, 2018
IMPLEMENTED ON. JULY 1, 2019
Issued by. State Administration for Market Regulation;
Standardization Administration of the People’s Republic of
China.
Table of Contents
Foreword ... 3
1 Scope ... 4
2 Normative References ... 4
3 Terms and Definitions ... 5
4 Requirements... 5
5 Test Methods ... 6
Appendix A (Normative) Determination Method of Total Halide Content in
Hydrogen ... 10
Fuel Specification for Proton Exchange Membrane
Fuel Cell Vehicles - Hydrogen
1 Scope
This Standard specifies the terms, definitions, hydrogen purity, requirements of
impurity content in hydrogen, and analytical and test methods of fuel hydrogen for
proton exchange membrane fuel cell (PEMFC) vehicles.
This Standard is applicable to quality requirements of fuel hydrogen for perfluoro
sulfonic acid proton exchange membrane fuel cell vehicles.
NOTE. molecular formula of hydrogen. H2. Relative molecular mass. 2.01588 (in
accordance with 2007 Standard Atomic Weights).
2 Normative References
The following documents are indispensable to the application of this Standard. In terms
of references with a specified date, only versions with a specified date are applicable
to this Standard. The latest version (including all the modifications) of references
without a specified date is applicable to this Standard.
GB/T 3634.1-2006 Hydrogen - Part 1. Industrial Hydrogen
GB/T 3634.2-2011 Hydrogen - Part 2. Pure Hydrogen, High Pure Hydrogen and
Ultrapure Hydrogen
GB/T 3723 Sampling of Chemical Products for Industrial Use - Safety in Sampling
GB/T 5832.2-2016 Gas Analysis - Determination of Moisture - Part 2. Dew Point
Method
GB/T 6285-2016 Determination of Trace Oxygen in Gases - Electrochemical
Method
GB/T 6680 General Rules for Sampling Liquid Chemical Products
GB/T 6681 General Rules for Sampling Gaseous Chemical Products
GB/T 8984-2008 Determination of Carbon Monoxide, Carbon Dioxide and
Hydrocarbon in Gases - Gas Chromatographic Method
GB/T 14669-1993 Air Quality - Determination of Ammonia - Ion Selective Electrode
Method
11---ammonia content (volume fraction), 10-6;
12---total halide content (volume fraction), 10-6.
5.3 Determination of Water Content
Determination of water content shall comply with the method stipulated in Chapter 6 in
GB/T 5832.2-2016. It is allowable to adopt other equivalent methods. When there is a
disagreement of the determination result, the method stipulated in GB/T 5832.2-2016
shall be deemed as the arbitration method.
5.4 Determination of Total Hydrocarbon Content
Determination of hydrocarbon (total hydrocarbon, counted by CH4) content shall be
conducted in accordance with the method stipulated in Chapter 7 in GB/T 8984-2008.
It is allowable to adopt other equivalent methods. When there is a disagreement of the
determination result, the method stipulated in GB/T 8984-2008 shall be deemed as the
arbitration method.
5.5 Determination of Oxygen Content
Determination of oxygen content shall be conducted in accordance with the method
stipulated in Chapter 6 in GB/T 6285-2016. It is allowable to adopt other equivalent
methods. When there is a disagreement of the determination result, the method
stipulated in GB/T 6285-2016 shall be deemed as the arbitration method.
5.6 Determination of Helium Content
Determination of helium content shall be conducted in accordance with the method
stipulated in Chapter 6 in GB/T 27894.3-2011. It is allowable to adopt other equivalent
methods. When there is a disagreement of the determination result, the method
stipulated in GB/T 27894.3-2011 shall be deemed as the arbitration method.
5.7 Determination of Total Nitrogen and Argon Content
Determination of total nitrogen and argon content shall be conducted in accordance
with the method stipulated in Chapter 5 in GB/T 3634.2-2011. It is allowable to adopt
other equivalent methods. When there is a disagreement of the determination result,
the method stipulated in GB/T 3634.2-2011 shall be deemed as the arbitration method.
5.8 Determination of Carbon Dioxide Content
Determination of carbon dioxide content shall be conducted in accordance with the
method stipulated in Chapter 7 in GB/T 8984-2008. It is allowable to adopt other
equivalent methods. When there is a disagreement of the determination result, the
method stipulated in GB/T 8984-2008 shall be deemed as the arbitration method.
5.9 Determination of Carbon Monoxide Content
Appendix A
(Normative)
Determination Method of Total Halide Content in Hydrogen
A.1 Scope
This Appendix specifies the absorption and ion chromatography of determining total
halide content in hydrogen. This method is applicable to the determination of hydrogen
chloride, chlorine gas and other halides in hydrogen. The determination result shall be
counted by total halide content. This Method takes HCl test as an example; the
detection limit is 10 x 10-9 mol/mol.
A.2 Method Summary
Take a certain volume of sample gas, let it pass through deionized water at a certain
flow rate. Chloride in the sample gas is absorbed by water. Chloride ion content in the
absorbent is quantitatively determined through ion chromatography. Then, in
accordance with the total volume of gas that passes through deionized water, convert
chloride content in the gas.
A.3 Reagents and Materials
A.3.1 Deionized water. comply with the stipulation of Grade-1 water in GB/T 6682.
A.3.2 Chloride ion standard stock solution. accurately weigh-take 0.1649 g of sodium
chloride standard substance (dry it at 105 °C for 2 h), dissolve it in water, then, dilute
to 1,000 mL volumetric flask, concentration. 0.1 g/L.
A.3.3 Chloride standard solution. from chloride ion standard stock solution, transfer
1.00 mL, 2.50 mL, 5.00 mL, 7.50 mL and 10.00 mL, then, respectively use blank water
to dilute to 100 mL volumetric flask. Thus, obtain chloride standard solution at the
concentration of 1.00 mg/L, 2.50 mg/L, 5.00 mg/L, 7.50 mg/L and 10.0 mg/L.
A.3.4 Leaching stock solution. weigh-take 16.96 g of sodium carbonate (excellent
grade of purity), dissolve it in blank water. Then, weigh-take 4.20 g of sodium
bicarbonate (excellent grade of purity); add it to the solution, dissolve it, mix it up. Use
blank water to dilute to 500 mL. Concentration. 320 mmol/L of sodium carbonate and
100 mmol/L of sodium bicarbonate.
A.3.5 Leaching working solution. transfer 20 mL of leaching stock solution; use blank
water to dilute to 2,000 mL; mix it up for usage. Concentration of this leaching working
solution. 3.2 mmol/L of sodium carbonate and 1.0 mmol/L of sodium bicarbonate.
A.4 Instruments and Equipment
3---needle valve;
4---PFA gas wash bottle;
5---beaker or other fixtures;
6---wet gas flow meter;
7---connecting sleeve.
Figure A.1 -- Sketch Map of Sampling Device
A.5.2 Let hydrogen, which is to be tested, flow into a deionized water-containing wash
bottle at the speed of 500 mL/min for sampling. Sampling time. 200 min; sampling
volume. 100 L.
A.5.3 Use deionized water to dilute the post-sampling absorbent to 100 mL; use ion
chromatography for detection.
A.5.4 Select proper chromatographic conditions to thoroughly warm up ion
chromatograph. Typical chromatographic condition. column temperature. 35 °C;
mobile phase. 3.2 mmol/L Na2CO3 + 1.0 mmol/L NaHCO3 leaching solution (A.3.5);
injection volume. 20 μL, flow rate. 0.7 mL/min.
A.5.5 Respectively inject blank water solution, chloride standard solution (A.3.3) and
sample solution; integrate them and obtain peak area. Use standard curve for
calibration, then, obtain the test result.
A.5.6 Independently conduct two determinations. The relative deviation of the
determined value of two parallel tests shall be not more than 10%. Take the average
value as the determination result.
A.6 Result Calculation
A.6.1 The sampling volume of hydrogen shall be converted into the volume under
standard state in accordance with Formula (A.1).
Where.
V0---under standard state, the sampling volume of hydrogen, which is to be tested,
expressed in (L);
VH---under test conditions, the sampling volume of hydrogen, which is to be tested,
expressed in (L);
pH---atmospheric pressure during sampling, expressed in (Pa);
......
Source: Above contents are excerpted from the PDF -- translated/reviewed by: www.chinesestandard.net / Wayne Zheng et al.
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