JB/T 9670-2014Zinc Oxide for the Varistor of Metal Oxide Surge Arresters (English PDF)
金属氧化物避雷器电阻片用氧化锌
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Issued by
MIIT
Level / Type
Industry · Recommended
Issue date
May 6, 2014
Implementation date
October 1, 2014
Scope
JB/T 9670-2014 is the English-translated version of 金属氧化物避雷器电阻片用氧化锌.
JB/T 9670-2014 is a recommended Chinese machinery industry standard for the zinc oxide used to make the varistors of metal oxide surge arresters. It covers zinc oxide produced by the indirect process from Zn99.995 grade zinc ingots, the material that serves as the main raw material for those varistors.
The standard is classified K49 in the Chinese system and 29.080.99 internationally, the group for insulating and arrester materials.
Its cited documents are chiefly chemical reagent and analysis standards: GB/T 622-2006, GB/T 626-2006, GB/T 631-2007, GB/T 637-2006, GB/T 658-2006, GB/T 670-2007, GB/T 675-2011, GB/T 679-2002, GB 1253-2007, GB/T 1401-1998, GB/T 3185-1992, GB/T 6682-2008 and GB/T 9723-2007.
It replaces JB/T 9670-1999. Issued on 6 May 2014, it has applied since 1 October 2014.
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Document preview — JB/T 9670-2014
National Standard of the People's Republic of China
- ICS
- 29.080.99
- Replacing
- JB/T 9670-1999
Issued by: Ministry of Industry and Information Technology of the People's Republic of China
Contents
- Foreword
- Scope
- Normative references
- About this standard
- Related standards
- Classification and status
1 Foreword
JB/T 9670-2014 was issued by MIIT on 6 May 2014 and has been in force since 1 October 2014.
It replaces the earlier edition JB/T 9670-1999.
2 Scope
This standard is a recommended Chinese machinery industry standard for the zinc oxide used to make the varistors of metal oxide surge arresters. It covers zinc oxide produced by the indirect process from Zn99.995 grade zinc ingots, the material that serves as the main raw material for those varistors. The standard is classified K49 in the Chinese system and 29.080.99 internationally, the group for insulating and arrester materials. Its cited documents are chiefly chemical reagent and analysis standards: GB/T 622-2006, GB/T 626-2006, GB/T 631-2007, GB/T 637-2006, GB/T 658-2006, GB/T 670-2007, GB/T 675-2011, GB/T 679-2002, GB 1253-2007, GB/T 1401-1998, GB/T 3185-1992, GB/T 6682-2008 and GB/T 9723-2007. It replaces JB/T 9670-1999.
3 Normative references
JB/T 9670-2014 cites the following standards, which apply in full or in part through the references made to them in its clauses.
GB/T 622-2006 — Chemical reagent -- Hydrochloric acid
GB/T 626-2006 — Chemical reagent -- Nitric acid
GB/T 631-2007
GB/T 637-2006 — Chemical reagent -- Sodium thiosulfate pentahydrate
GB/T 658-2006 — Chemical reagent -- Ammonium chloride
GB/T 670-2007 — Chemical reagents -- Silver nitrate
GB/T 675-2011 — Chemical reagents -- Iodine
GB/T 679-2002 — Chemical reagent -- Ethanol
GB 1253-2007 — Working chemical - Sodium chloride
GB/T 1401-1998 — Chemical reagent. Ethylenediamine tetraacetic acid, disodium salt dihydrate
GB/T 3185-1992
GB/T 6682-2008 — Water for analytical laboratory use - Specification and test methods
GB/T 9723-2007 — Chemical Reagent - General rule for flame atomic absorption spectrometric analysis
4 About this standard
Issued by: MIIT
English translation: about 15 pages
5 Related standards
Other editions:
JB/T 9670-1999 (earlier edition)
6 Classification and status
International classification (ICS): 29.080.99
Prefix JB/T: recommended standard.
......
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
Normative references
- GB/T 622-2006Chemical reagent -- Hydrochloric acid
- GB/T 626-2006Chemical reagent -- Nitric acid
- GB/T 631-2007Chemical reagent - Ammonia solution
- GB/T 637-2006Chemical reagent -- Sodium thiosulfate pentahydrate
- GB/T 658-2006Chemical reagent -- Ammonium chloride
- GB/T 670-2007Chemical reagents -- Silver nitrate
Similar standards
Editions of JB/T 9670
| Edition | Title | Revision | Status |
|---|---|---|---|
| JB/T 9670-2014 | Zinc Oxide for the Varistor of Metal Oxide Surge Arresters | current edition | Current |
| JB/T 9670-1999 | Zinc Oxide for the Varistor of Metal Oxide Surge Arresters | previous edition | Superseded |
This page sells the current edition, JB/T 9670-2014. Earlier editions are listed for reference only.
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Related Standards
GB 1253-2007 — Working chemical - Sodium chloride
GB/T 1401-1998 — Chemical reagent. Ethylenediamine tetraacetic acid, disodium salt dihydrate
GB/T 622-2006 — Chemical reagent -- Hydrochloric acid
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