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Position: Chinese Standard in English/GB/T 2539-2008
GB/T 2539-2008   Petroleum waxes - Determination of melting point-cooling curve method (English Version)
Standard No.: GB/T 2539-2008 Status:superseded remind me the status change

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Implemented on:2008-9-1 Delivery: via email in 1 business day

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2024-04-01,2024-4-1,2008-9-1,141138181848870A65421FE963B2D
Standard No.: GB/T 2539-2008
English Name: Petroleum waxes - Determination of melting point-cooling curve method
Chinese Name: 石油蜡熔点的测定 冷却曲线法
Chinese Classification: E42    Petroleum wax
Professional Classification: GB    National Standard
Source Content Issued by: AQSIQ; SAC
Issued on: 2008-5-12
Implemented on: 2008-9-1
Status: superseded
Superseded by:GB/T 2539-2023 Determination of melting point of petroleum waxes—Cooling curve method
Superseded on:2024-4-1
Abolished on:2024-04-01
Superseding:GB/T 2539-1981 Paraffins;Determination of melting point(cooling curve)
Target Language: English
File Format: PDF
Word Count: 2000 words
Translation Price(USD): 74.0
Delivery: via email in 1 business day
1 Scope 1.1 This Standard specifies a method for the determination of the melting Point (cooling curve) of Petroleum wax. This Standard is applicable to Petroleum wax. It is unsuitable for waxes of the petrolatum group, the microcrystalline waxes, or blends of such waxes with Paraffin wax or scale wax. 1.2 Melting Point (cooling curve) is a test that is widely used by wax suppliers and consumers. It is particularly applicable to petroleum waxes that are rather highly paraffinic or crystalline in nature. A Plateau occurs with specimens containing appreciable amounts of hydrocarbons that crystallize at the same temperature, giving up heat of fusion, thus temporarily retarding the cooling rate. In general, Petroleum waxes with large amounts of non-normal hydrocarbons or with amorphous solid forms will not show the Plateau.
GB/T 2539-2008 is referred in:
* GB 7189-2010 Food grade paraffin wax
*QB/T 4362-2012 Wax Products - Paraffin Wax for Candles
*GB/T 4985-2010 Standard test method for needle penetration of petroleum waxes
*GB/T 4985-2021 Standard test method for needle penetration of petroleum waxes
Code of China
Standard
GB/T 2539-2008  Petroleum waxes - Determination of melting point-cooling curve method (English Version)
Standard No.GB/T 2539-2008
Statussuperseded
LanguageEnglish
File FormatPDF
Word Count2000 words
Price(USD)74.0
Implemented on2008-9-1
Deliveryvia email in 1 business day
Detail of GB/T 2539-2008
Standard No.
GB/T 2539-2008
English Name
Petroleum waxes - Determination of melting point-cooling curve method
Chinese Name
石油蜡熔点的测定 冷却曲线法
Chinese Classification
E42
Professional Classification
GB
ICS Classification
Issued by
AQSIQ; SAC
Issued on
2008-5-12
Implemented on
2008-9-1
Status
superseded
Superseded by
GB/T 2539-2023 Determination of melting point of petroleum waxes—Cooling curve method
Superseded on
2024-4-1
Abolished on
2024-04-01
Superseding
GB/T 2539-1981 Paraffins;Determination of melting point(cooling curve)
Language
English
File Format
PDF
Word Count
2000 words
Price(USD)
74.0
Keywords
GB/T 2539-2008, GB 2539-2008, GBT 2539-2008, GB/T2539-2008, GB/T 2539, GB/T2539, GB2539-2008, GB 2539, GB2539, GBT2539-2008, GBT 2539, GBT2539
Introduction of GB/T 2539-2008
1 Scope 1.1 This Standard specifies a method for the determination of the melting Point (cooling curve) of Petroleum wax. This Standard is applicable to Petroleum wax. It is unsuitable for waxes of the petrolatum group, the microcrystalline waxes, or blends of such waxes with Paraffin wax or scale wax. 1.2 Melting Point (cooling curve) is a test that is widely used by wax suppliers and consumers. It is particularly applicable to petroleum waxes that are rather highly paraffinic or crystalline in nature. A Plateau occurs with specimens containing appreciable amounts of hydrocarbons that crystallize at the same temperature, giving up heat of fusion, thus temporarily retarding the cooling rate. In general, Petroleum waxes with large amounts of non-normal hydrocarbons or with amorphous solid forms will not show the Plateau.
Contents of GB/T 2539-2008
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Keywords:
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