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GB/T 9853-2008 English PDF

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GB/T 9853-2008: Chemical reagent -- Sodium sulfate anhydrous
Status: Valid

GB/T 9853: Evolution and historical versions

Standard IDContents [version]USDSTEP2[PDF] delivered inStandard Title (Description)StatusPDF
GB/T 9853-2008English189 Add to Cart 3 days [Need to translate] Chemical reagent -- Sodium sulfate anhydrous Valid GB/T 9853-2008
GB/T 9853-1988English199 Add to Cart 2 days [Need to translate] Chemical reagent--Sodium sulfate, anhydrous Obsolete GB/T 9853-1988

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Basic data

Standard ID GB/T 9853-2008 (GB/T9853-2008)
Description (Translated English) Chemical reagent -- Sodium sulfate anhydrous
Sector / Industry National Standard (Recommended)
Classification of Chinese Standard G62
Classification of International Standard 71.040.30
Word Count Estimation 8,891
Date of Issue 2008-05-15
Date of Implementation 2008-11-01
Older Standard (superseded by this standard) GB/T 9853-1988
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 anhydrous sodium traits, specifications, trial, packaging and inspection rules and signs. This standard applies anhydrous sodium sulfate test chemical reagents.

GB/T 9853-2008: Chemical reagent -- Sodium sulfate anhydrous

---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. Sodium sulfate anhydrous ICS 71.040.30 G62 National Standards of People's Republic of China Replacing GB/T 9853-1988 Chemicals anhydrous sodium sulfate (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," The R35 "anhydrous sodium sulfate," the Non-equivalent. This standard replaces GB/T 9853-1988 "Chemicals anhydrous sodium", compared with the GB/T 9853-1988 major changes as follows. --- Clarity test specifications by a "qualified" to "3", "5" (1988 Version 3.3; edition Chapter 4); --- Clarity test, water-insoluble, chloride, phosphate, total nitrogen, iron, heavy use of chemical reagents 7 general method for the determination (1988 edition 4.3.1,4.3.2,4.3.4,4.3.5,4.3.6,4.3.9,4.3.10; 5 edition .5,5.6,5.8,5.9, 5.10,5.13,5.14); --- Increasing the calculation formula for determining the amount of loss on ignition (1988 version 4.3.3, this version 5.7); --- Added Appendix A (Excerpts Appendix A). Appendix A of this standard is an informative annex. 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. Guangdong Guanghua Chemical Factory Co., Ltd. The main drafters. Zhang Zhibin, Chen Qun clear. This standard was first published in 1976, in 1988, the first revision. Chemicals anhydrous sodium sulfate Molecular formula. Na2SO4 Molecular weight. 142.04 (according to 2005 international relative atomic mass)

1 Scope

This standard specifies the chemical reagent anhydrous sodium sulfate traits, specifications, testing, packaging and inspection rules and signs. This standard applies to testing anhydrous sodium sulfate chemical reagents.

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 609 chemical reagent - General method for determination of total nitrogen (GB/T 609-2006, ISO 6353-1. 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 9724 General rule for determination of pH chemical reagent (GB/T 9724-2007, ISO 6353-1. 1982, NEQ) GB/T 9727 General method for the determination of phosphate chemical reagent (GB/T 9727-2007, ISO 6353-1. 1982, NEQ) 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 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 colorless transparent crystal or powder, soluble in water.

4 Specification

Anhydrous sodium sulfate as shown in Table 1. Table 1 Name AR chemically pure Content (Na2SO4), /% ≥99.0 ≥98.0 pH value (50g/L, 25 ℃) 5.0 ~ 8.0 5.0 ~ 8.0

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