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GB/T 632-2008: Chemical reagent -- Disodium tetraborate decahydrate
Status: Valid GB/T 632: Evolution and historical versions
| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | Status | PDF |
| GB/T 632-2008 | English | 189 |
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Chemical reagent -- Disodium tetraborate decahydrate
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GB/T 632-2008
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| GB/T 632-1993 | English | 199 |
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Chemical reagent. Disodium tetraborate decahydrate
| Obsolete |
GB/T 632-1993
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PDF similar to GB/T 632-2008
Basic data | Standard ID | GB/T 632-2008 (GB/T632-2008) | | Description (Translated English) | Chemical reagent -- Disodium tetraborate decahydrate | | Sector / Industry | National Standard (Recommended) | | Classification of Chinese Standard | G62 | | Classification of International Standard | 71.040.30 | | Word Count Estimation | 8,882 | | Date of Issue | 2008-05-15 | | Date of Implementation | 2008-11-01 | | Older Standard (superseded by this standard) | GB/T 632-1993 | | Quoted Standard | GB/T 601; GB/T 602; GB/T 603; GB/T 6682; GB/T 9723-2007; GB/T 9727; GB/T 9728; GB/T 9729; GB/T 9738; GB/T 9739; GB 15346; HG/T 3484; HG/T 3921 | | Adopted Standard | ISO 6353-3-1987, 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 reagent, sodium tetraborate decahydrate traits, specifications, trial, packaging and inspection rules and signs. This standard applies to chemical reagents, sodium tetraborate decahydrate inspection. | GB/T 632-2008: Chemical reagent -- Disodium tetraborate decahydrate---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.Disodium tetraborate decahydrate
ICS 71.040.30
G62
National Standards of People's Republic of China
Replacing GB/T 632-1993
Chemical Reagents
Sodium tetraborate decahydrate (sodium tetraborate)
(ISO 6353-3. 1987, Reagentsforchemicalanalysis-
Part 3. Specifications-Secondseries, 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 6353-3. 1987 "Chemical analysis of reagent --- Part III. 2 of Specification" series in R61 "tetraborate decahydrate
Disodium, "the non-equivalent.
This standard replaces GB/T 632-1993 "Chemical reagents sodium tetraborate decahydrate (sodium tetraborate)," compared with the GB/T 632-1993
The main changes are as follows.
--- Increasing the reference document (Chapter 2 of this edition);
--- Increased traits (Chapter 3 of this edition);
--- Specifications Clarity test by "qualified" to "2", "4", "6" (1993 version 3.2, this version of Chapter 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. Shanghai Institute of chemical reagents.
The main drafters of this standard. Suiqi Ying, Sheng Xiaohua.
This standard was first released in 1965, amended in 1978 for the first time in 1993, the second amendment.
Chemical Reagents
Sodium tetraborate decahydrate (sodium tetraborate)
Molecular formula. Na2B4O7 · 10H2O
Molecular weight. 381.38 (according to 2005 international relative atomic mass)
1 Scope
This standard specifies the chemical reagents sodium tetraborate decahydrate traits, specifications, testing, packaging and inspection rules and signs.
This standard applies to chemical reagents sodium tetraborate decahydrate 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 9727 General method for the determination of phosphate chemical reagent (GB/T 9727-2007, ISO 6353-1. 1982, NEQ)
GB/T 9728 General method for determination of chemical reagents sulfate (GB/T 9728-2007, 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 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 and transparent crystalline powder, soluble in water and glycerin, insoluble in alcohol.
4 Specification
Sodium tetraborate decahydrate as shown in Table 1.
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