氢气纯度分级
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Basis for further supplier/user refinements Specifications for gaseous and liquid hydrogen Typical uses by grade General sampling methods General analytical procedures for impurities
Attend meetings Submit comments Participate in comment resolution Voting rights
Compressed Gas Association
4
G-5.3 – 2004 Commodity Specification for Hydrogen
Hydrogen Purity Standard
Roger A. Smith Technical Director April 26, 2004
Compressed Gas Association
Compressed Gas Association
150 Members Industrial Gas Companies Equipment Manufacturers Other Gas Industry Associations Other SDOs Manufacturers, Fillers, Distributors, and Transporters of Industrial and Medical Gases
Compressed Gas Association
2
Hydrogen Activities
Committees
Hydrogen Fuel Technology Bulk Distribution Equipment Hazardous Materials Codes Gas Specifications Cylinders, Valves & PRD’s
D
B
F
C
L
wenku.baidu.com
* Uses defined in this table are not all inclusive.
Compressed Gas Association
7
Compressed Gas Association
5
CGA G-5.3, Table 1
Compressed Gas Association
6
CGA G-5.3, Table 2
Table 2—Typical uses * Quality Verification Level (QVL) Type I B Typical uses Type I General industrial applications Fuel, hydrogenation, and water chemistry applications Analytical instrumentation, and propellant applications Semiconductor, analytical, and specialty applications Quality Verification Level (QVL) Type II A Typical uses Type II Standard industrial, fuel, and propellant applications High-purity industrial, fuel, and propellant applications Semiconductor applications
International
Europe (EIGA) Japan (JIGA) Asia (AIGA) United Nations
Compressed Gas Association
3
Hydrogen Purity Standard
Draft hydrogen purity standard for stationary fuel cells and ICE’s in 10 months Use G-5.3 – 2004 Commodity Specification for Hydrogen as a starting point Gas Specification Committee Multinational gas companies participate Committee open to non-member SDOs Full Participation
Attend meetings Submit comments Participate in comment resolution Voting rights
Compressed Gas Association
4
G-5.3 – 2004 Commodity Specification for Hydrogen
Hydrogen Purity Standard
Roger A. Smith Technical Director April 26, 2004
Compressed Gas Association
Compressed Gas Association
150 Members Industrial Gas Companies Equipment Manufacturers Other Gas Industry Associations Other SDOs Manufacturers, Fillers, Distributors, and Transporters of Industrial and Medical Gases
Compressed Gas Association
2
Hydrogen Activities
Committees
Hydrogen Fuel Technology Bulk Distribution Equipment Hazardous Materials Codes Gas Specifications Cylinders, Valves & PRD’s
D
B
F
C
L
wenku.baidu.com
* Uses defined in this table are not all inclusive.
Compressed Gas Association
7
Compressed Gas Association
5
CGA G-5.3, Table 1
Compressed Gas Association
6
CGA G-5.3, Table 2
Table 2—Typical uses * Quality Verification Level (QVL) Type I B Typical uses Type I General industrial applications Fuel, hydrogenation, and water chemistry applications Analytical instrumentation, and propellant applications Semiconductor, analytical, and specialty applications Quality Verification Level (QVL) Type II A Typical uses Type II Standard industrial, fuel, and propellant applications High-purity industrial, fuel, and propellant applications Semiconductor applications
International
Europe (EIGA) Japan (JIGA) Asia (AIGA) United Nations
Compressed Gas Association
3
Hydrogen Purity Standard
Draft hydrogen purity standard for stationary fuel cells and ICE’s in 10 months Use G-5.3 – 2004 Commodity Specification for Hydrogen as a starting point Gas Specification Committee Multinational gas companies participate Committee open to non-member SDOs Full Participation