GB/T 9103-2013 PDF English (GB/T 9103-1988: Older version)
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Industrial stearic acids
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GB/T 9103-2013: PDF in English (GBT 9103-2013) GB/T 9103-2013
NATIONAL STANDARD OF THE
PEOPLE’S REPUBLIC OF CHINA
ICS 71.080.40
Y 44
Replacing GB/T 9103-1988
Industrial stearic acids
工业硬脂酸
ISSUED ON: DECEMBER 31, 2013
IMPLEMENTED ON: DECEMBER 01, 2014
Issued by: General Administration of Quality Supervision, Inspection and
Quarantine;
Standardization Administration of the People's Republic of
China.
Table of Contents
Foreword ... 3
1 Scope ... 4
2 Normative references ... 4
3 Product classification ... 4
4 Requirements ... 4
5 Test methods ... 5
6 Inspection rules ... 6
7 Marks, packaging, transport, storage and shelf life ... 7
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).
This Standard was proposed by China Light Industry Federation.
This Standard shall be under the jurisdiction of National Technical Committee
on Surfactants and Detergents of Standardization Administration of China
(SAC/TC 272).
The drafting organizations of this Standard: China Daily Chemical Industry
Research Institute, Boxing Huarun Grease Chemical Co., Ltd., Zouping Fuhai
Group (limited) Company, Zhejiang Jiahua Energy Chemical Co., Ltd.,
Surfactant and Detergent Industry Productivity Promotion Center.
Main drafters of this Standard: Liu Jianxue, Li Xiaohui, Ye Jianquan, Xu Wenkai,
Mao Jinsheng, Tong Nian, Qi Yuhuan, Cheng Ning.
Version of standard substituted by this Standard is:
- GB/T 9103-1988.
Industrial stearic acids
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.
5.6 Titer
In accordance with the provisions of Clause 8 in GB/T 9104-2008.
5.7 Moisture
In accordance with the provisions of Clause 9 in GB/T 9104-2008.
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.
......
Source: Above contents are excerpted from the PDF -- translated/reviewed by: www.chinesestandard.net / Wayne Zheng et al.
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