GB/T 5462-2015 PDF English
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| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivery | Name of Chinese Standard | Status |
| GB/T 5462-2015 | English | 90 |
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Industrial salt
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| GB/T 5462-2003 | English | 199 |
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Industrial salt
| Obsolete |
| GB/T 5462-1992 | English | RFQ |
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Industrial salt
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GB/T 5462-2015: Industrial salt---This is an excerpt. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.), auto-downloaded/delivered in 9 seconds, can be purchased online: https://www.ChineseStandard.net/PDF.aspx/GBT5462-2015
GB
NATIONAL STANDARD OF THE
PEOPLE’S REPUBLIC OF CHINA
ICS 71.060.50
X 38
Replacing GB/T 5462-2003
Industrial Salt
Issued on. OCTOBER 9, 2015
Implemented on. MAY 1, 2016
Issued by. General Administration of Quality Supervision, Inspection and
Quarantine;
Standardization Administration of PRC.
Table of Contents
Foreword... 3
1 Scope... 4
2 Normative References... 4
3 Terms and Definitions... 4
4 Product Classification... 5
5 Technical Requirements... 5
6 Test Methods... 6
7 Batch and Sampling... 7
8 Inspection Rules... 8
9 Package, Label, Transportation and Storage... 8
Foreword
This Standard was drafted as per the rules specified in GB/T 1.1-2009.
This Standard replaced GB/T 5462-2003 Industrial Salt. Compared with GB/T
5462-2003 Industrial Salt, in addition to some editorial modifications, this Standard
mainly has the following technical changes.
--- Modify the scope;
--- Add the terms and definitions;
--- Increase the wet salt varieties of the refined Industrial salt;
--- Improve the sodium chloride, water indicators to a certain degree.
This Standard was proposed by China Light Industry Council.
This Standard shall be under the jurisdiction of National Technical Committee for
Standardization of Salt Industry (SAC/TC 295).
Drafting organizations of this Standard. National Salt Product Quality Supervision and
Inspection Center, Jiangsu Jingshen Salt & Chemical Industry Co., Ltd., China
National Salt Industry Corporation Haolong Salt Chemical Co., Ltd., and Chongqing
Salt Industry (Group) Co., Ltd..
Chief drafting staffs of this Standard. Huo Junfei, Wang Guochen, Lou Hongbin.
The historical editions replaced by this Standard are as follows.
--- GB 5462-1992, GB/T 5462-2003.
Industrial Salt
1 Scope
This Standard specifies the terms and definitions, product classification, technical
requirements, test methods, batch and sampling, inspection rules, package, label,
transportation and storage of the Industrial salt.
This Standard is applicable to the salt excavated from seawater (including the coastal
underground brine), or the Industrial salt produced with salt lake brine, rock salt or
underground brine as the raw materials.
2 Normative References
The following documents are essential to the application of this document. For the
dated documents, only the versions with the dates indicated are applicable to this
document; for the undated documents, only the latest version (including all the
amendments) are applicable to this document.
GB/T 8618 Sampling Methods of the Main Products in the Salt Industry
GB/T 13025.3-2012 General Test Method in Salt Industry - Determination of
Moisture
GB/T 13025.4 General Test Method in Salt Industry - Determination of Insoluble
Matter
GB/T 13025.5 General Test Method in Salt Industry - Determinaiton of Chloride
Ion
3 Terms and Definitions
The following terms and definitions are applicable to this document.
3.1 Solar industrial salt
The industrial salt produced by the brine solar evaporation and crystallization process.
3.2 Refined industrial salt
The industrial salt with brine or salt as the raw materials, produced by the vacuum
evaporation salt-making process, and mechanical thermal compression evaporation
salt-making process.
4 Product Classification
The industrial salt is divided into solar industrial salt and refined industrial salt as per
the processes; it is also divided into dry industrial salt and wet industrial salt as per the
product characteristics.
5 Technical Requirements
5.1 Sensory requirements
White, yellowish or greenish white crystal, no significant foreign matters associated
with the product.
5.2 Physical and chemical indicators
The physical and chemical indicators of industrial salt shall conform to the provisions
of Table 1.
6 Test Methods
6.1 Sensory determination
Take appropriate amount of sample and place it into a clean white enamel dish, under
the natural light, observe its color and luster, morphology, impurities visually.
6.2 Physical and chemical indicators
6.2.1 Total amount of calcium and magnesium ions
It shall be implemented as per the provisions of GB/T 13025.6.
6.2.2 Sulfate ion
It shall be implemented as per the provisions of GB/T 13025.8.
6.2.3 Sodium chloride
6.2.4 Moisture
6.2.4.1 Method of weight loss on drying
According to the provision of Chapter 2 in GB/T 13025.3, after drying and keeping
constant weight at 140°C, the moisture content of the sample (mass fraction)
indicates the sum between weight loss on drying and residual crystal water in
compounds. The moisture content of the sample shall be calculated as per Formula
(1).
6.2.5 Water insoluble matters
It shall be implemented as per the provisions of GB/T 13025.4.
6.2.6 Data inspection
If the sum of the following matters, like sodium chloride, calcium sulfate, magnesium
sulfate, sodium sulfate, calcium chloride, magnesium chloride, moisture, water
insoluble matters, is between 99.5g/100g and 100.4g/100g, then the inspected data
are qualified.
7 Batch and Sampling
7.1 Batch
The products with the same production process and resources, and delivery at the
same time.
8 Inspection Rules
All indicators in the inspection results shall conform to the corresponding class
requirements of this Standard; if there is one indicator that is disqualified to the
provision of this Standard, then take the standby sample to re-inspect the disqualified
indicator; if the re-inspection result still can’t conform to the provision of this Standard,
then such batch of products shall be disqualified.
9 Package, Label, Transportation and Storage
When the industrial salt leaves the factory (site), it can be packaged or in bulk. The
product with package shall be indicated produce name (type), specification,
trademark, producer, this Standard number, forbidden to eat, and the like words on
the package.
......
Source: Above contents are excerpted from the full-copy PDF -- translated/reviewed by: www.ChineseStandard.net / Wayne Zheng et al.
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