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HG/T 2573-2012

Chinese Standard: 'HG/T 2573-2012'
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HG/T 2573-2012
ICS 71.060.20
G 13
Record No.: 37828-2013
Replacing HG/T 2573-2006
Light Magnesium Oxide for Industrial Use
Issued by: Ministry of Industry and Information Technology of the
People’s Republic of China
Table of Contents
Foreword ... 3
1 Scope ... 4
2 Normative References ... 4
3 Molecular Formula and Relative Molecular Mass ... 5
4 Classification and Naming ... 5
5 Requirements ... 5
6 Testing Methods ... 6
7 Inspection Rules ... 19
8 Marking and Label ... 20
9 Packaging, Transportation and Storage ... 20
This Standard was drafted in accordance with the rules in GB/T 1.1-2009.
This Standard serves as a replacement of HG/T 2573-2006 Light Magnesium Oxide
for Industrial Use. In comparison with HG/T 2573-2006, apart from editorial
modifications, there are several main technical changes as follows:
---Type-I Grade-1 sulfate content index is added to the requirements (see 5.2; 4.2
in Version 2006);
---Testing method for magnesium oxide content is modified (see 6.4; 5.3 in Version
---Testing method for chlorine content determination is modified: the determination
of chlorine content is modified into precipitation titration method (see 6.11; 5.10
in Version 2006);
---Testing method for bulk density determination is modified (see 6.13; 5.12 in
Version 2006).
The formulation of this Standard adopts the redrafting law and takes Russian standard
ГOCT844-1979 (4th modification since October 1, 1990) Technical Conditions for
Industrial Calcination of Magnesium Oxide as a reference. The degree of consistency
with ГOCT844-1979 is non-equivalent.
This Standard was proposed by China Petroleum and Chemical Industry Federation.
This Standard shall be under the jurisdiction of Inorganic Chemical Industry
Subcommittee of National Technical Committee 63 on Chemical of Standardization
Administration of China (SAC/TC63/SC1).
The drafting organizations of this Standard: CenerTech Tianjin Chemical Research and
Design Institute Co., Ltd.; Yuncheng Environmental Protection Technology Co., Ltd.
Asia-Hing; Shanghai Dunhuang Chemical Factory; Xingtai Magnesium Chemical Co.,
Ltd.; Wuxi Zehui Chemical Co., Ltd.; Shouguang Huihuang Chemical Co., Ltd.
The main drafters of this Standard: Lixia, Wei Guanya, Shi Zuyu, Sunwen, Mo Yunze,
Liwei, Han Jianqiu, Xu Shunjuan, Jiang Chunning, Guo Fengxin.
The issuing of the previous versions of the standard replaced by this Standard is as
---GB 9004-1988.
---HG/T 2573-1994; HG/T 2573-2006.
Light Magnesium Oxide for Industrial Use
1 Scope
This Standard stipulates the classification, requirements, testing methods, inspection
rules, marking, labels, packaging, transportation and storage of light magnesium oxide
for industrial use.
This Standard is applicable to light magnesium oxide calcinated through basic
magnesium carbonate and magnesium hydroxide for industrial use. The product is
mainly applied to industries like plastics, rubber, wires, cables, dye, grease, glass
ceramics, rubber tires, adhesives, tanning and fuel suppressant, etc.
2 Normative References
The following documents are indispensable to the application of this document. In
terms of references with a specified date, only versions with a specified date are
applicable to this document. In terms of references without a specified date, the latest
version (including all the modifications) is applicable to this document.
GB/T 191-2008 Packaging - Pictorial Marking for Handling of Goods;
GB/T 3049-2006 Chemical Products for Industrial Use - General Method for
Determination of Iron Content - 1,10-Phenanthroline Spectrophotometric Method
(idt ISO 6685:1982);
GB/T 6003.1-1997 Test Sieves of Metal Wire Cloth;
GB/T 6678 General Principles for Sampling Chemical Products;
GB/T 6682-2008 Water for Analytical Laboratory Use - Specification and Test
GB/T 8170 Rules of Rounding off for Numerical Values & Expression and
Judgement of Limiting Values;
HG/T 3696.1 Inorganic Chemicals for Industrial Use - Preparations of Standard
and Reagent Solutions for Chemical Analysis - Part 1: Preparations of Standard
Volumetric Solutions;
HG/T 3696.2 Inorganic Chemicals for Industrial Use - Preparations of Standard
and Reagent Solutions for Chemical Analysis - Part 2: Preparations of Standard
Solutions for Impurity; ......
Related standard:   HG/T 2572-2012  HG/T 5011-2016
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