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GB/T 9738-2008: Chemical reagent -- General method for the determination of water insoluble matter
Status: Valid GB/T 9738: Evolution and historical versions
| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | Status | PDF |
| GB/T 9738-2008 | English | 149 |
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Chemical reagent -- General method for the determination of water insoluble matter
| Valid |
GB/T 9738-2008
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| GB/T 9738-1988 | English | 199 |
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Chemical reagent--General method for the determination of water insoluble matter
| Obsolete |
GB/T 9738-1988
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PDF similar to GB/T 9738-2008
Basic data | Standard ID | GB/T 9738-2008 (GB/T9738-2008) | | Description (Translated English) | Chemical reagent -- General method for the determination of water insoluble matter | | Sector / Industry | National Standard (Recommended) | | Classification of Chinese Standard | G60 | | Classification of International Standard | 71.040.30 | | Word Count Estimation | 5,547 | | Date of Issue | 2008-05-15 | | Date of Implementation | 2008-11-01 | | Older Standard (superseded by this standard) | GB/T 9738-1988 | | Quoted Standard | GB/T 6682 | | Adopted Standard | ISO 6353-1-1982, NEQ | | Regulation (derived from) | National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 provides a common method for the determination of insoluble matter by gravimetric method. This standard applies to the determination of water -soluble solid chemical reagents insolubles. The determination of water insoluble matter with the standards and specifications by the sample volume value the quality of the resulting insoluble material shall not be less than 1 mg. This standard does not apply to the determination of instability or corrosive chemicals glass filter crucible water insolubles in boiling water. | GB/T 9738-2008: Chemical reagent -- General method for the determination of water insoluble matter
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Chemical reagent. General method for the determination of water insoluble matter
ICS 71.040.30
G60
National Standards of People's Republic of China
Replacing GB/T 9738-1988
Chemical Reagents
General method for determination of water insoluble
(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 9738-1988 "Determination of water insoluble chemical reagents common approach" compared with the GB/T 9738-1988 Main
To change the following.
--- Canceled 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. Beijing Yili Fine Chemicals Co., Ltd.
The main drafters of this standard. Zhao Yufeng.
This standard was first published in 1988.
Chemical Reagents
General method for determination of water insoluble
1 Scope
This standard specifies the general method for the determination of insoluble matter by gravimetric method.
This standard applies to the determination of water-soluble solid chemical reagent water insolubles. Determination of water insoluble matter when the present standard, according to regulations and sample volume
Insolubles quality of the resulting cell value calculation must not be less than 1mg.
This standard does not apply to unstable or glass filter crucible corrosion measurement of chemical agents in water-insoluble matter in boiling water.
2 Normative references
The following documents contain provisions which, through reference in this standard and become the standard terms of dated references, all subsequent
Amendments (not including errata content) or revisions do not apply to this standard, however, encourage the parties to study under this agreement is standard
Whether the latest versions of these documents. For undated reference documents, the latest versions apply to this standard.
GB/T 6682 analytical laboratory use specifications and test methods (GB/T 6682-2008, ISO 3696. 1987, MOD)
3 PRINCIPLE OF THE METHOD
Samples dissolved in water, the insolubles were filtered off, the filter residue was washed with water, so that the sample body completely separated, dried and the available balance that insoluble
Quality material.
4 Reagents
Test water should comply with GB/T 6682 in the three water specifications.
5 Instruments
5.1 General laboratory equipment.
5.2 Glass filter crucible. pore size of 5μm ~ 15μm.
5.3 vacuum suction filtration apparatus.
5.4 electric oven. the temperature can be maintained at 105 ℃ ± 2 ℃.
5.5 Analysis of balance. a sense of the amount of 0.1mg.
6 Determination
A predetermined amount of sample, dissolved in a predetermined volume of boiling water, cooled to room temperature, it had been used in 105 ℃ ± 2 ℃ constant glass filter crucible
Filtered, washed with hot water to residue adsorption on the subject completely wash away the residue of the sample at 105 ℃ ± 2 ℃ in an electric oven dried to constant weight.
7 Calculation
Water insoluble mass fraction, expressed in%, according to equation (1).
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