GB/T 2539-1981Paraffins--Determination of melting point (cooling curve) (English PDF)
石蜡溶点 （冷却曲线） 测定法
GB/T 2539 | Evolution and historical versions
| Std ID | Title | Status |
|---|---|---|
| GB/T 2539-2023 | Determination of melting point of petroleum wax - Cooling curve method | Valid |
| GB/T 2539-2008 | Petroleum waxes - Determination of melting point-cooling curve method | Obsolete |
| GB/T 2539-1981 | Paraffins--Determination of melting point (cooling curve) | Obsolete |
GB/T 2539-1981 is obsolete. It has been replaced by GB/T 2539-2008. This page sells the obsolete edition, for projects and contracts that still cite it.
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Issued by
National Bureau of Standards
Level / Type
National · Recommended
Issue date
March 25, 1981
Implementation date
July 1, 1981
Scope
GB/T 2539-1981 is the English-translated version of 石蜡溶点 （冷却曲线） 测定法.
GB/T 2539-1981 is the Chinese national standard "Paraffins--Determination of melting point (cooling curve)". It was issued on March 25, 1981 by the National Bureau of Standards, and took effect on July 1, 1981. It is obsolete: it has been replaced by GB/T 2539-2008.
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Document preview — GB/T 2539-1981
National Standard of the People's Republic of China
Issued by: National Bureau of Standards
Contents
- Document data
1 Document data
Sector: National standard (Recommended).
Issuing body: National Bureau of Standards.
Date of issue: 1981-03-25.
Date of implementation: 1981-07-01.
Status: obsolete, replaced by GB/T 2539-2008.
......
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 1202-2025Scale paraffin wax
- GB/T 7364-2025Test method for carbonizable substances in paraffin wax
- GB/T 446-2023Fully refined paraffin wax
- GB/T 254-2022Semi-refined paraffin wax
- GB/T 3555-2022Test method for Saybolt color of petroleum products—Saybolt chromometer
- GB/T 4985-2021Standard test method for needle penetration of petroleum waxes
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