GB/T 9103-2013Industrial stearic acids (English PDF)
工业硬脂酸
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Issued by
SAMR; SAC
Level / Type
National · Recommended
Issue date
December 31, 2013
Implementation date
December 1, 2014
Scope
GB/T 9103-2013 is the English-translated version of 工业硬脂酸.
GB/T 9103-2013 is the Chinese national specification for industrial stearic acid, the grade obtained by hydrolysing and refining animal and vegetable oils, whose main components are octadecanoic acid and palmitic acid.
It classifies the product by octadecanoic acid content into type 1840, type 1850, type 1865 and a rubber grade, accepts it in block, flake, powder or granular form, and tabulates the physical and chemical indicators: octadecanoic acid content, saponification value, acid value, iodine value, colour, titer and moisture.
The test methods are the clauses of GB/T 9104-2008 that it points to, and the same properties make up the exit-factory inspection, with the sample size taken from Table 2 by batch size.
It also fixes marks, packaging, transport, storage and shelf life. It replaces GB/T 9103-1988, was issued on 31 December 2013 and has applied since 1 December 2014.
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Document preview — GB/T 9103-2013
National Standard of the People's Republic of China
- ICS
- 71.080.40
- Classification
- Y 44
- Replacing
- GB/T 9103-1988
Issued by: State Administration for Market Regulation; Standardization Administration of the PRC
Contents
- Foreword3
- 1 Scope4
- 2 Normative references4
- 3 Product classification4
- 4 Requirements4
- 5 Test methods5
- 6 Inspection rules6
- 7 Marks, packaging, transport, storage and shelf life7
Foreword
This Standard was drafted in accordance with the rules given in GB/T 1.1-2009.
This Standard replaces GB/T 9103-1988 "Industrial stearic acids". Compared with GB/T 9103-1988, main changes in this Standard are as follows:
-- modified the product classification, stearic acid was modified from original type 200, type 400, type 800 to type 1840, type 1850, type 1865 and rubber level (see Clause 3 of this Edition, Clause 2 of Edition 1988);
-- modified technical indicators of saponification value, acid value, iodine value, titer, moisture, color (see 4.2 of this Edition, 3.2 of Edition 1988);
-- added octadecanoic acid content indicator (see 4.2 of this Edition);
-- deleted inorganic acid indicator (3.2 of Edition 1988);
-- modified inspection rules (see Clause 6 of this Edition, Clause 5 of Edition
1988);
-- modified marks, packaging, transport, storage (see Clause 7 of this Edition, Clause 6 of Edition 1988).
1 Scope
This Standard specifies product classification, technical requirements, test methods, inspection rules and marks, packaging, transport, storage and shelf life of industrial stearic acids.
This Standard is applicable to industrial stearic acids that are obtained by processing and refining animal and vegetable oils after hydrolysis (the main components are octadecanoic acid and palmitic acid). Industrial stearic acids are widely used in rubber, plastics, textile printing and dyeing, household chemicals and precision casting industries.
2 Normative references
The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.
GB/T 8170, Rules of rounding off for numerical values & expression and judgement of limiting values
GB/T 9104-2008, Test methods for industrial stearic acids
3 Product classification
Industrial stearic acids, according to the content of octadecanoic acid in the product, are classified into: type 1840, type 1850, type 1865 and rubber level.
4 Requirements
4.1 Appearance
The product, according to the forming method, appears block, flake, powder or granular.
4.2 Physical and chemical indicators
The physical and chemical indicators of industrial stearic acids shall comply In accordance with the provisions of Clause 7 in GB/T 9104-2008.
In accordance with the provisions of Clause 8 in GB/T 9104-2008.
5 Test methods
5.6 Titer
In accordance with the provisions of Clause 9 in GB/T 9104-2008.
5.7 Moisture
6 Inspection rules
6.1 Exit-factory inspection
The exit-factory inspection items are appearance, C18 content, saponification value, acid value, iodine value, color, titer, moisture specified in Clause 4.
6.2 Product batching and sampling rules
6.2.1 Batching
The products are delivered in batches and accepted by sampling. The products of the same specification, of same batch number delivered at one time are one delivery batch.
The products delivered by manufacturer shall be first inspected as accepted by manufacturer's quality inspection depart according to the provisions of this Standard. Then issue product quality inspection certificates before they are exited from factory. The product quality inspection certificate shall include manufacturer's name, product name, trademark, reference standard used, type, level, batch number, batch size, quality indicator, production date.
The receiver shall accept the products according to the product's quality inspection certificate. When necessary, perform sampling, acceptance or arbitration within one month according to the provisions of 6.2.2.
6.2.2 Sampling
According to the batch size, determine the sample size according to Table 2. Randomly extract unit sample from batches. […]
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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
Cited by
- GB/T 46230-2025Solution-polymerized SBR - Evaluation methods of viscoelastic properties
- GB/T 46605-2025Rubber, vulcanized or thermoplastic - Determination of dynamic cutting resistance
- GB/T 40133-2021Technical requirements for recycling and further processing of waste cooking oil from restaurant
- GB/T 34685-2017Acrylonitrile-butadiene rubber (NBR) -- Evaluation procedure
- HG/T 4609-2014Light-coloured refined reclaimed rubber
- GB/T 15339-2008Rubber compounding ingredients -- Carbon black -- Method of evaluation in NBR (Acrylonitrile-Butadiene Rubber)
Similar standards
Editions of GB/T 9103
| Edition | Title | Revision | Status |
|---|---|---|---|
| GB/T 9103-2013 | Industrial stearic acids | current edition | Current |
| GB/T 9103-1988 | Industrial stearic acids | previous edition | Superseded |
This page sells the current edition, GB/T 9103-2013. Earlier editions are listed for reference only.
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Related Standards
GB/T 8170-2008 — Rules of rounding off for numerical values & expression and judgement of limiting values
GB/T 9104-2008 — Test methods for industrial stearic acids
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