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GB/T 610-2008 English PDF

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GB/T 610-2008: Chemical reagent -- General method for the determination of arsenic
Status: Valid

GB/T 610: Evolution and historical versions

Standard IDContents [version]USDSTEP2[PDF] delivered inStandard Title (Description)StatusPDF
GB/T 610-2008English169 Add to Cart 3 days [Need to translate] Chemical reagent -- General method for the determination of arsenic Valid GB/T 610-2008
GB/T 610.1-1988English199 Add to Cart 2 days [Need to translate] Chemical reagent--General method for the determination of arsenic Obsolete GB/T 610.1-1988

PDF similar to GB/T 610-2008


Standard similar to GB/T 610-2008

GB/T 614   GB/T 611   GB/T 609   GB/T 603   

Basic data

Standard ID GB/T 610-2008 (GB/T610-2008)
Description (Translated English) Chemical reagent -- General method for the determination of arsenic
Sector / Industry National Standard (Recommended)
Classification of Chinese Standard G60
Classification of International Standard 71.040.30
Word Count Estimation 7,772
Date of Issue 2008-05-15
Date of Implementation 2008-11-01
Older Standard (superseded by this standard) GB/T 610.1-1988; GB/T 610.2-1988
Quoted Standard GB/T 602; GB/T 603; GB/T 6682; GB/T 9721
Adopted Standard ISO 6353-1-1982, 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 applies to the determination of trace amounts of arsenic. Gutzeit method for measuring arsenic levels in the test solution 1��g ~ 5��g range. Detection range diethyl dithiocarbamate in the silver method for absorbing liquid 0. 1��g/mL ~ 4��g/mL.

GB/T 610-2008: Chemical reagent -- General method for the determination of arsenic

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Chemical reagent. General method for the determination of arsenic ICS 71.040.30 G60 National Standards of People's Republic of China Replacing GB/T 610.1-1988, GB/T 610.2-1988 General method for determination of arsenic chemical reagents (ISO 6353-1. 1982, Reagentsforchemicalanalysis- Part 1. Generaltestmethods, 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 6353-1. 1982 "Chemical analysis of reagent --- Part 1. General test method" non-equivalent. This standard replaces GB/T 610.1-1988 "Chemicals general method determination of arsenic (arsenic spot method)" and GB/T 610.2-1988 "of General method for determination of arsenic chemical reagent (diethyl dithiocarbamate silver law) ", and GB/T 610.1-1988, GB/T 610.2-1988 Compared to the main changes are as follows. --- Increase Gutzeit method for the determination of the scope (Chapter 1 of this edition); --- Clear Gutzeit method to limit law, diethyl dithiocarbamate silver method for the quantitative method (Excerpts 4.1.1,4.2.1); --- Canceled GB/T 610.2 Appendix A (1988 edition of Appendix A). 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 610-1965, GB/T 610-1977, GB/T 610.1-1988; --- GB/T 610-1965, GB/T 610-1977, GB/T 610.2-1988. General method for determination of arsenic chemical reagents

1 Scope

This standard applies to the determination of trace amounts of arsenic. Gutzeit method suitable for measuring the arsenic content in 1μg ~ 5μg (As) within the scope of the test solution. Diethyl dithiocarbamate silver method (AgDDTC) detection range in the absorbing liquid was 0.1μg/mL ~ 4μg/mL (As).

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. 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 9721 Chemicals General molecular absorption spectrophotometry (UV and visible part)

3 Reagents

Unless otherwise specified in this standard, all standard solution, preparations and products, according to GB/T 602, the provisions of the preparation of GB/T 603, the experiment Water should be consistent with GB/T 6682 in two water specifications.

4 Determination

4.1 Gutzeit method 4.1.1 The principle of the method In acidic solution, potassium iodide and stannous chloride As (Ⅴ) reduced to As (Ⅲ), plus zinc particles react with acids to produce nascent hydrogen to As (Ⅲ) is further reduced to arsine. Arsine gas when the mercury bromide paper effect and will vary depending on the amount of arsenic produce different shades of brown Yellow mercury arsenic compounds, arsenic can be used to limit visual colorimetric assay. 4.1.2 Instruments 4.1.2.1 general laboratory equipment. 4.1.2.2 arsenic given device Arsenic given apparatus shown in Fig. Measured before the mercury bromide paper sandwiched between glass and glass upper nozzle cap with a rubber band or other parties The upper end of the glass cap method and the glass tube spout fixed.

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