GB/T 1676-2008 PDF English
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| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Name of Chinese Standard | Status |
| GB/T 1676-2008 | English | 90 |
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Determining the iodine value of plasticizers
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| GB/T 1676-1981 | English | 199 |
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Determinating the iodine value of plasticizers
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GB/T 1676-2008: PDF in English (GBT 1676-2008) GB/T 1676-2008
GB
ICS 71.100.40; 83.040.30
G 70
National Standard
of the People’s Republic of China
Replacing GB/T 1676-1981
Determinating the iodine value of plasticizers
ISSUED ON. JUNE 18, 2008
IMPLEMENTED ON. FEBRUARY 1, 2009
Issued by. General Administration of Quality Supervision, Inspection and
Quarantine of the People’s Republic of China;
Committee of Standardization Administration of the People’s
Republic of China.
Table of Contents
Foreword ... 3
1 Scope ... 4
2 Normative references ... 4
3 Term and definition ... 4
4 Reagents and solution ... 4
5 Instruments ... 5
6 Analysis steps ... 5
7 Result calculation ... 6
8 Allowable error ... 6
Foreword
This Standard replaces GB/T 1676-1981 “Determinating the iodine value of
plasticizers”.
There is no technical difference between this Standard and GB/T 1676-1981.
This Standard was proposed by China Petroleum and Chemical Industry
Federation.
This Standard shall be under the jurisdiction of the Chemical Auxiliaries
Technical Sub-committee of National Standardization Technology Committee of
Rubber and Rubber Products.
Responsible drafting organizations of this Standard. Hengyang Solvent Factory,
and Shanxi Chemical Research Institute.
Main drafter of this Standard. An Fang.
The previous released versions replaced by this Standard are as follows.
— GB/T 1676-1979 and GB/T 1676-1981.
Determinating the iodine value of plasticizers
1 Scope
This Standard specifies the method to determine the iodine value of plasticizers.
This Standard applies to the determination of the iodine value of plasticizers.
2 Normative references
The provisions in the following documents become the provisions of this
Standard through reference in this Standard. For dated references, the
subsequent amendments (excluding corrections) or revisions do not apply to
this Standard. However, parties who reach an agreement based on this
Standard are encouraged to study if the latest versions of these documents are
applicable. For undated references, the latest versions apply to this Standard.
GB/T 601 Chemical reagent – Preparations of standard volumetric solutions
GB/T 603 Chemical reagent – Preparations of reagent solutions for use in
test methods (GB/T 603-2002, ISO 6353-1.1982, NEQ)
GB/T 6682 Water for analytical laboratory use – Specification and test
methods (GB/T 6682-2008, ISO 3696.1987, MOD)
3 Term and definition
The following term and definition apply to this Standard.
3.1 Iodine value
The grams of the iodine that is absorbed by 100g of test sample, named as the
iodine value.
4 Reagents and solution
Unless otherwise specified, only the Grade-3 water or the water with the
equivalent purity specified in GB/T 6682 shall be used during the analysis.
Without any other specified requirements, the standard titration solution,
preparations and products used during the analysis shall be prepared according
to the requirements specified in GB/T 601 and GB/T 603.
......
Source: Above contents are excerpted from the PDF -- translated/reviewed by: www.chinesestandard.net / Wayne Zheng et al.
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