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GB/T 2304-2008: Chemical reagent -- Zinc granular free from arsenic
Status: Valid GB/T 2304: Evolution and historical versions
| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | Status | PDF |
| GB/T 2304-2008 | English | 169 |
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Chemical reagent -- Zinc granular free from arsenic
| Valid |
GB/T 2304-2008
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| GB/T 2304-1988 | English | 199 |
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Chemical reagent--Zinc
| Obsolete |
GB/T 2304-1988
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PDF similar to GB/T 2304-2008
Basic data | Standard ID | GB/T 2304-2008 (GB/T2304-2008) | | Description (Translated English) | Chemical reagent -- Zinc granular free from arsenic | | Sector / Industry | National Standard (Recommended) | | Classification of Chinese Standard | G62 | | Classification of International Standard | 71.040.30 | | Word Count Estimation | 7,734 | | Date of Issue | 2008-05-13 | | Date of Implementation | 2008-11-01 | | Older Standard (superseded by this standard) | GB/T 2304-1988 | | Quoted Standard | GB/T 601; GB/T 602; GB/T 603; GB/T 6682; GB/T 9723-2007; GB/T 9728; GB 15346; HG/T 3921 | | Adopted Standard | ISO 6353-2-1983, NEQ | | Regulation (derived from) | National Standard Approval Announcement 2008 No.8 (Total No.121) | | 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 reagents arsenic zinc tablets traits, specifications, trial, packaging and inspection rules and signs. This standard applies to chemical reagent test arsenic zinc tablets. | GB/T 2304-2008: Chemical reagent -- Zinc granular free from arsenic---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.
Chemical reagent. Zinc granular free from arsenic
ICS 71.040.30
G62
National Standards of People's Republic of China
Replacing GB/T 2304-1988
Chemicals arsenic-free zinc particles
(ISO 6353-2. 1983, Reagentsforchemicalanalysis-
Part 2. Specifications-Firstseries, NEQ)
Posted 2008-05-15
2008-11-01 implementation
Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China
Standardization Administration of China released
Foreword
This standard and ISO 6353-2. 1983 "Chemical analysis of reagent --- Part 2. Specification --- 1 of this series" R40 "zinc" consistency Cheng
Degree is not equivalent.
This standard replaces GB/T 2304-1988 "Chemicals arsenic-free zinc", compared with the GB/T 2304-1988 The main changes are as follows.
--- Standard name changed to "arsenic-free zinc particles";
--- Increased traits (Chapter 3 of this edition);
--- Canceled the appearance, for the determination of arsenic test (1988 edition 3.1,3.2,4.1,4.2);
--- Sulfur compounds chemical reagents use a common method of measurement (1988 version 4.3.2, this version 5.4).
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. Sinopharm Chemical Reagent Co., Ltd.
The main drafters of this standard. Chenhao Yun, Chen Hong.
This standard was first published in 1977, in 1988, the first revision.
Chemicals arsenic-free zinc particles
Element symbol. Zn
Molecular Weight. 65.39 (according to 2005 international relative atomic mass)
1 Scope
This standard specifies the chemical reagent arsenic-free zinc particles traits, specifications, testing, packaging and inspection rules and signs.
This standard applies to chemical agents arsenic-free zinc particles in the test.
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 9723-2007 Chemicals flame atomic absorption spectrometry General
GB/T 9728 General method for determination of chemical reagents sulfate (GB/T 9728-2007, ISO 6353-1. 1982, NEQ)
GB 15346 chemical reagent packaging and marking
HG/T 3921 Chemicals sampling and acceptance rules
3 Characters
This reagent is silver white uniform metal particles, soluble in dilute acid and sodium hydroxide solution. Each 5g sample is 30 ~ 50.
4 Specification
Arsenic-free zinc particles as shown in Table 1.
Table 1
Name AR
Sulfuric acid insolubles, /% ≤0.04
Sulfur compounds (of SO4), /% ≤0.01
Iron (Fe), /% ≤0.01
Arsenic (As), /% ≤0.00001
Lead (Pb), /% ≤0.01
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