GB/T 13021-1991Determination for the carbon black content of polyethylene pipes and fittings by calcination and pyrolysis (English PDF)
聚乙烯管材和管件炭黑含量的测定 热失重法
GB/T 13021 | Evolution and historical versions
| Std ID | Title | Status |
|---|---|---|
| GB/T 13021-2023 | Polyolefin pipes and fittings - Determination of carbon black content - Test method of calcination and pyrolysis | Valid |
| GB/T 13021-1991 | Determination for the carbon black content of polyethylene pipes and fittings by calcination and pyrolysis | Obsolete |
GB/T 13021-1991 is obsolete. It has been replaced by GB/T 13021-2023. This page sells the obsolete edition, for projects and contracts that still cite it.
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Issued by
State Bureau of Technical Supervision
Level / Type
National · Recommended
Issue date
July 3, 1991
Implementation date
April 1, 1992
Scope
GB/T 13021-1991 is the English-translated version of 聚乙烯管材和管件炭黑含量的测定 热失重法.
GB/T 13021-1991 is the Chinese national standard "Determination for the carbon black content of polyethylene pipes and fittings by calcination and pyrolysis". It was issued on July 3, 1991 by the State Bureau of Technical Supervision, and took effect on April 1, 1992. It is obsolete: it has been replaced by GB/T 13021-2023.
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Document preview — GB/T 13021-1991
National Standard of the People's Republic of China
Issued by: State Bureau of Technical Supervision
Contents
- Document data
1 Document data
Sector: National standard (Recommended).
Issuing body: State Bureau of Technical Supervision.
Date of issue: 1991-07-03.
Date of implementation: 1992-04-01.
Status: obsolete, replaced by GB/T 13021-2023.
......
This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — all pages — is available in the English PDF.
Referenced standards
Cited by
- GB/T 43982.2-2026Plastics piping systems for the renovation of underground water supply networks — Part 2: Lining with continuous pipes
- GB/T 15558.3-2023Buried polyethylene(PE) piping systems for the supply of gaseous fuels - Part 3: Fittings
- GB/T 15558.4-2023Buried polyethylene(PE) piping systems for the supply of gaseous fuels - Part 4: Valves
- GB/T 43005-2023Composite pipes of polyethylene reinforced with continuous wound glass-fiber-tape for water supply
- GB/T 19812.6-2022Plastic equipment for water saving irrigation - Part 6: Polyethylene (PE) pipes for water supply
- GB/T 40441-2021Drainage mats
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Related Standards
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GB/T 13021-1991
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