GB/T 655-2011 English PDF

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GB/T 655-2011: Ammonium persulfate chemical reagents
Status: Valid

GB/T 655: Historical versions

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
GB/T 655-2011	139	Add to Cart	3 days	Ammonium persulfate chemical reagents	Valid
GB/T 655-1994	239	Add to Cart	2 days	Chemical reagent. Ammonium persulfate	Obsolete
GB 655-1977	199	Add to Cart	2 days	Chemical reagents--Ammonium persulfate	Obsolete

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Basic data

Standard ID: GB/T 655-2011 (GB/T655-2011)
Description (Translated English): Ammonium persulfate chemical reagents
Sector / Industry: National Standard (Recommended)
Classification of Chinese Standard: G62
Classification of International Standard: 71.040.30
Word Count Estimation: 6,641
Date of Issue: 2011-05-12
Date of Implementation: 2011-12-01
Older Standard (superseded by this standard): GB/T 655-1994
Quoted Standard: GB/T 601; GB/T 602; GB/T 603; GB/T 6682; GB/T 9729; GB/T 9735; GB/T 9738; GB/T 9739; GB 15258; GB 15346; HG/T 3484; HG/T 3921; GB/T 9741-2008
Regulation (derived from): Announcement of Newly Approved National Standards No. 6 of 2011
Issuing agency(ies): General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China, Standardization Administration of the People's Republic of China
Summary: This standard specifies the chemical reagent ammonium persulfate traits, specifications, testing, inspection and marking and packaging rules. This standard applies to ammonium persulfate chemical reagent test.

GB/T 655-2011: Ammonium persulfate chemical reagents

---This is a DRAFT version for illustration, not a final translation. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.) will be manually/carefully translated upon your order.
Ammonium persulfate chemical reagents ICS 71.040.30 G62 National Standards of People's Republic of China Replacing GB/T 655-1994 Chemical reagents Ammonium persulfate Issued on. 2011-05-12 2011-12-01 implementation Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China Standardization Administration of China released

Foreword

This standard replaces GB/T 655-1994 "Chemicals ammonium persulfate," compared with the GB/T 655-1994 main changes are as follows. --- Clarity test specifications by a "qualified" to "3", "5" (1994 version 3.2, this version of Chapter 4); --- Water-insoluble, chloride and chlorate two instead of chemical reagents common method for determining (1994 edition 4.2.2,4.2.4, edition The 5.4,5.6); --- Determination of heavy metals increased sodium sulfide - Glycerin colorimetry (1994 version 4.2.7, this version 5.9); --- Modify the packaging and logo (1994 edition, Chapter 6, Section 7 of this edition). The standard proposed by China Petroleum and Chemical Industry Association. This standard by the National Standardization Technical Committee Chemistry Chemicals Branch (SAC/TC63/SC3) centralized. This standard was drafted. Shanghai Institute of chemical reagents. The main drafters of this standard. Suiqi Ying, Sheng Xiaohua. This standard replaces the standards previously issued as follows. --- GB/T 655-1965, GB/T 655-1977, GB/T 655-1994. Chemical reagents Ammonium persulfate Warning. some of the test procedure specified in this standard can lead to dangerous situations, the user has the responsibility to take appropriate safety and health practices. Molecular formula. (NH4) 2S2O8 Molecular weight. 228.20 (according to 2007 international relative atomic mass)

1 Scope

This standard specifies the chemical reagent ammonium persulfate traits, specifications, testing, packaging and inspection rules and signs. This standard applies to ammonium persulfate test chemical reagent.

2 Normative references

The following documents contain provisions which, through reference in this standard and become the standard terms. For dated references, subsequent Amendments (not including errata content) or revisions do not apply to this standard, however, encourage the parties to the agreement are based on research Whether the latest versions of these documents. For undated reference documents, the latest versions apply to this standard. Preparation of GB/T 601 chemical reagent standard titration solution GB/T 602 Determination of impurities in chemical reagents prepared standard solution (GB/T 602-2002, ISO 6353-1. 1982, NEQ) with GB/T 603 chemical reagent test method Preparations of articles (GB/T 603-2002, ISO 6353-1 with. 1982, NEQ) GB/T 6682 analytical laboratory use specifications and test methods (GB/T 6682-2008, ISO 3696. 1987, MOD) GB/T 9729 General method for determination of chloride Chemicals (GB/T 9729-2007, ISO 6353-1. 1982, NEQ) GB/T 9735 General method for determination of heavy metals Chemicals (GB/T 9735-2008, ISO 6353-1. 1982, NEQ) GB/T 9738 Determination of water insoluble chemical reagent - General method (GB/T 9738-2008, ISO 6353-1. 1982, NEQ) GB/T 9739 General method for determination of iron chemical reagents (GB/T 9739-2006, ISO 6353-1. 1982, NEQ) GB/T 9741-2008 Determination of residue on ignition Chemicals General method (ISO 6353-1. 1982, NEQ) GB 15258 rules for preparation of chemical safety labels GB 15346 chemical reagent packaging and marking HG/T 3484 standard chemical reagents glass emulsion and clarity standards HG/T 3921 Chemicals sampling and acceptance rules

3 Characters

This reagent is white crystal or crystalline powder, soluble in water, in case of wet gradually decompose and release oxygen.

4 Specification

Ammonium persulfate as shown in Table 1. Table 1 Name AR chemically pure Content [(NH4) 2S2O8], w /% ≥98.0 ≥98.0 Clarity test/number ≤3 ≤5 Water-insoluble, w /% ≤0.005 ≤0.02 ......

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