GB/T 25497-2010Test methods for gas absorbency and release of getters (English PDF)
吸气剂气体吸放性能测试方法
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Issued by
SAMR; SAC
Level / Type
National · Recommended
Issue date
December 1, 2010
Implementation date
May 1, 2011
Scope
GB/T 25497-2010 is the English-translated version of 吸气剂气体吸放性能测试方法.
GB/T 25497-2010 is the Chinese standard "Test methods for gas absorbency and release of getters".
Its scope clause reads: This standard specifies the test method of getter gassing test method release nitrogen doped getter getter dynamic curve, the mercury releasing getter discharge Gas suction curve test method, getter constant pressure method gas suction performance test method, the suction performance test methods and other constant volume method of absorbing and releasing performance measurement Test methods.
This standard applies to devices with a vacuum getter. Its clauses include terms; getter outgas test.
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Document preview — GB/T 25497-2010
National Standard of the People's Republic of China
- ICS
- 31.030
- Classification
- L 90
- Replacing
- GB/T 9506.4-1988
Issued by: State Administration for Market Regulation; Standardization Administration of the PRC
Contents
- 1 Scope
- 2 Normative references
- 3 Terms
- 4 getter outgas test
1 Scope
This standard specifies the test method of getter gassing test method release nitrogen doped getter getter dynamic curve, the mercury releasing getter discharge
Gas suction curve test method, getter constant pressure method gas suction performance test method, the suction performance test methods and other constant volume method of absorbing and releasing performance measurement
Test methods.
This standard applies to devices with a vacuum getter.
2 Normative references
The following documents contain provisions which, through reference in this standard and become the standard terms. For dated references, subsequent
Amendments (not including errata content) or revisions do not apply to this standard, however, encourage the parties to the agreement are based on research
Whether the latest versions of these documents. For undated reference documents, the latest versions apply to this standard.
GB/T 4314 getter term
3 Terms
GB/T 4314 as determined by the terms and definitions apply to this standard.
4 getter outgas test
4.1 Principle
This method uses the "constant volume method." Namely the use of measurement at a constant temperature in a predetermined time interval, the amount of change in a pressure vessel of known volume
Determined outgas.
4.2 Test equipment and conditions
Test apparatus as shown in Figure 1.
1 --- before the pump;
2 --- three-way vacuum valve;
3 --- high vacuum pump;
4 --- off valve;
5 --- bleed valve;
6 --- A high vacuum gauge;
7 --- cold trap (optional);
8 --- off valve;
. 9 --- measuring outgas vacuum gauges;
10 --- static expansion vessel;
. 11 --- thermocouple wire;
12 --- high-frequency induction coil;
13 --- getter sample;
14 --- sample chamber.
Figure 1 getter outgas test system
GB/T 28159-2025 | GB/T 37406-2019 | GB/T 29848-2018 | GB/T 25496-2010 | GB/T 25495-2010 | GB/T 25494-2010 | […]
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This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — 15 pages — is available in the English PDF.
Referenced standards
Similar standards
Editions of GB/T 25497
| Edition | Title | Revision | Status |
|---|---|---|---|
| GB/T 25497-2010 | Test methods for gas absorbency and release of getters | current edition | Current |
| GB/T 9506.4-1988 | Test methods for gas absorbency and release of getters | previous edition | Superseded |
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