Method for determination of trace Hydrogen in electronic grade gases-Gas-sensitization chromatographic method
time:
2024-07-13 15:17:19
- SJ 2807-1987
- in force
Standard ID:
SJ 2807-1987
Standard Name:
Method for determination of trace Hydrogen in electronic grade gases-Gas-sensitization chromatographic method
Chinese Name:
电子级气体中痕量氢的测试方法 气敏色谱法
Standard category:
Electronic Industry Standard (SJ)
-
Date of Release:
1987-04-06 -
Date of Implementation:
1988-01-01 -
Date of Expiration:
2010-01-20
China Standard Classification Number:
General>>Standardization Management and General Provisions>>A01 Technical Management
Publishing Department:
Ministry of Electronics Industry of the People's Republic of China
Description (Translated English) / downloadSkip to download
Summary:
This method is applicable to the determination of trace hydrogen in electronic grade hydrogen, nitrogen, oxygen, argon, helium and ammonia, with a determination range of 0.05 to 37 ppm. SJ 2807-1987 Test method for trace hydrogen in electronic grade gases Gas-sensitive chromatography SJ2807-1987 standard download decompression password: www.bzxz.net
This method is applicable to the determination of trace hydrogen in electronic grade hydrogen, nitrogen, oxygen, argon, helium and ammonia, with a determination range of 0.05 to 37 ppm.
This method is applicable to the determination of trace hydrogen in electronic grade hydrogen, nitrogen, oxygen, argon, helium and ammonia, with a determination range of 0.05 to 37 ppm.
Standard contentSome standard content:
The standard of the Ministry of Electronic Industry of the People's Republic of China. Determination of trace hydrogen in electronic grade gas. Gas-sensitive chromatography
512897-87
This method is applicable to the determination of trace amounts of hydrogen in electronic grade hydrogen, nitrogen, oxygen, argon and hydrogen, and the determination range is 0.05～37Ppm.
Method principle
Gas-sensitive semiconductor, also known as gas resistance, is a component composed of semiconductor materials that are particularly sensitive to gases. N-type semiconductor gas-sensitive elements are particularly sensitive to gases such as hydrogen. The adsorption of gases such as hydrogen on the surface of the semiconductor forms a certain bond, changes the distribution of electrons on its surface, and causes a change in conductivity. When the gas escapes, the conductivity returns to its original value. In this way, the conductivity change, that is, the resistance change, can be recorded through a simple circuit. 2
Device and materials
a. Gas chromatograph. wwW.bzxz.Net
, the instrument can be 23P-KI gas colorimeter produced by Guangdong Fangyi Instrument Co., Ltd. b. Vortex controller.
C. Six-way sample escape valve, with quantitative tube.
d. Chromatographic column, stainless steel tube with inner diameter of 3-4mru and length of 1.0-1.5m. c. Recorder; 0-1mV, or 0-10mV. f. Carrier gas: air, dehydrated with silica gel and dehydrogenated with AgX molecular sieve to make its nitrogen content
Tip: This standard content only shows part of the intercepted content of the complete standard. If you need the complete standard, please go to the top to download the complete standard document for free.
512897-87
This method is applicable to the determination of trace amounts of hydrogen in electronic grade hydrogen, nitrogen, oxygen, argon and hydrogen, and the determination range is 0.05～37Ppm.
Method principle
Gas-sensitive semiconductor, also known as gas resistance, is a component composed of semiconductor materials that are particularly sensitive to gases. N-type semiconductor gas-sensitive elements are particularly sensitive to gases such as hydrogen. The adsorption of gases such as hydrogen on the surface of the semiconductor forms a certain bond, changes the distribution of electrons on its surface, and causes a change in conductivity. When the gas escapes, the conductivity returns to its original value. In this way, the conductivity change, that is, the resistance change, can be recorded through a simple circuit. 2
Device and materials
a. Gas chromatograph. wwW.bzxz.Net
, the instrument can be 23P-KI gas colorimeter produced by Guangdong Fangyi Instrument Co., Ltd. b. Vortex controller.
C. Six-way sample escape valve, with quantitative tube.
d. Chromatographic column, stainless steel tube with inner diameter of 3-4mru and length of 1.0-1.5m. c. Recorder; 0-1mV, or 0-10mV. f. Carrier gas: air, dehydrated with silica gel and dehydrogenated with AgX molecular sieve to make its nitrogen content
Tip: This standard content only shows part of the intercepted content of the complete standard. If you need the complete standard, please go to the top to download the complete standard document for free.
- Recommended standards
- SY/T 10012-1998 Specification for naming of offshore oil and gas drilling wells
- QB/T 1535-1992 Mechanical seeding
- QB/T 1077-1991 Static Mechanical Track Scale
- MT/T 561-1996 Fixed carbon classification of coal
- GB/T 4897.3-2003 Particleboard Part 3: Requirements for furniture and interior decoration boards used in a dry state
- GB 2761-1981 Tolerance of Aflatoxin B1 in Food
- JB/T 6756.1-1993 Test methods for special equipment for wires and cables Part 1: General
- GB/T 3520-1995 Test method for graphite fineness
- NY/T 716-2003 Technical Specification for Citrus Harvesting
- HG/T 2772-1996 Industrial zirconium oxychloride octahydrate (zirconium oxychloride)
- GB/T 5600-1997 General technical requirements for railway freight cars
- JB/T 9731.1-1999 Technical requirements for diesel engine fuel injection pump camshaft
- GB 4909.8-1985 Bare wire test method Hardness test Brinell method
- JB/T 10324-2002 General technical requirements for electrical equipment frames
- JB/T 10436-2004 Cross-linkable flame retardant polyolefin materials for wires and cables
Please remember: "bzxz.net" is the combination of the first letters of the Chinese pinyin of the four Chinese characters "standard download" and the international top-level domain name ".net". ©2024 Standard download websitewww.bzxz.net Mail：[email protected]