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GB/T 23838-2009: Determination of suspended solids of industrial circulating cooling water
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| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | Status | PDF |
| GB/T 23838-2009 | English | 229 |
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Determination of suspended solids of industrial circulating cooling water
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GB/T 23838-2009
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Basic data | Standard ID | GB/T 23838-2009 (GB/T23838-2009) | | Description (Translated English) | Determination of suspended solids of industrial circulating cooling water | | Sector / Industry | National Standard (Recommended) | | Classification of Chinese Standard | G76 | | Classification of International Standard | 71.040.40 | | Word Count Estimation | 10,139 | | Date of Issue | 2009-05-18 | | Date of Implementation | 2010-02-01 | | Adopted Standard | ISO 11923-1997, NEQ | | Regulation (derived from) | PRC National Standard Approval Announcement 2009 No.6 (Total No.146) | | 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 G4 through glass fiber filter or filters crucible of raw water, wastewater and determination of suspended solids in wastewater. The lowest detection limit of this method is about 2mg/L, the upper limit of the measurement method is not predetermined. Note 1: The content and storage time of suspended solids, transport, pH values ??and other factors. The test report should explain the situation of the sample. Oil slicks and other immiscible organic liquid may cause interference (see Appendix A). When dissolved solids in the sample is greater than 1000mg/L requires special handling (see 8. 5). | GB/T 23838-2009: Determination of suspended solids of industrial circulating cooling water---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.
Determination of suspended solids of industrial circulating cooling water
ICS 71.040.40
G76
National Standards of People's Republic of China
Industrial circulating cooling water of suspended solids
(ISO 11923.1997, Waterquality-Determinationofsuspendedsolids
byfiltrationthroughgiass-fibrefilters, NEQ)
Posted 2009-05-18
2010-02-01 implementation
Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China
Standardization Administration of China released
Foreword
This corresponds to the standard ISO 11923.1997 "Quality through a glass fiber filter paper suspended solids measurement" (in English), and
ISO 11923.1997 is non-equivalent.
The Standard Appendix A, Appendix B are informative appendices.
The standard proposed by China Petroleum and Chemical Industry Association.
This standard by the National Standardization Technical Committee of Chemical Water Treatment Chemicals Branch (SAC/TC63/SC5) centralized.
This standard is drafted by. Guangzhou City Special Pressure Equipment Inspection and Research Institute, CNOOC Tianjin Chemical Research & Design Institute.
The main drafters of this standard. Yang Lin, Ye Weiwen, Shang Bin, Bai Ying, Shao Hongqian.
Industrial circulating cooling water of suspended solids
1 Scope
This standard specifies the determination party through a glass fiber filter paper or G4 crucible filter raw water, waste water and sewage suspended solids
Method, the lowest detection limit of this method is about 2mg/L, this method is not the determination of the predetermined limit.
Note 1. The content of suspended solids and the storage time, mode of transportation, pH value and other factors. The test report shall indicate the case of the sample.
Oil slicks and other immiscible organic liquids may cause interference (see Appendix A).
When the dissolved solids in the sample is greater than 1000mg/L require special treatment (see 8.5).
Note 2. should indicate the type of filter.
Note 3. The water samples of different particle size distribution vary greatly, therefore, the results of the use of different pore size filter paper or filter has no relevance. Using different
The results of the model or paper filter can not be obtained in terms of each other.
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 6682 analytical laboratory use specifications and test methods (GB/T 6682-2008, ISO 3696. 1987, MOD)
3 Terms and Definitions
The following terms and definitions apply to this standard.
3.1
Under certain conditions, by centrifugation or filtration of the separated solids.
3.2
Under certain conditions, the sample is filtered, the remaining material was dried after evaporation.
Principle 4
Use filtration device, was by 105 ℃ ± 2 ℃ under constant glass fiber filter paper or G4 crucible filter water samples, then
The filters or filter placed at 105 ℃ ± 2 ℃ drying to constant, the mass of the residue retained by gravimetric method.
5 instruments and equipment
5.1 filtration device, the selected filter (5.2) match.
5.2 borosilicate glass fiber filter (hereinafter referred to as paper), or G4 filter crucible (hereinafter referred to as filter). free of adhesive, filtered
Paper, filter should be circular and has a diameter of filtration device (5.1) match. Loss of quality blank test should be less than 0.3mg.
5.3 filter, according to Chapter 8 operating loss of quality check, use 150mL distilled water instead of the sample, a blank sample mass loss should be less than
0.3mg/L. Check each group separately or filter paper. Every three arbitrary choice, improve test sensitivity.
NOTE. In order to remove water-soluble components, you can filter or filters pre-washing, a single or a small number of filter paper or filter (< 10), available 150mL distilled
Pre-washing water, and then dried at 105 ℃ least 1h.
Washed with a large number of filter paper or filter, it can be immersed in distilled water for several hours before using the extraction of water, dried at 105 ℃ 1h or at least overnight.
Filtering characteristics different manufacturers or filter paper slightly different. In the test report (Chapter 12) gives the filter paper or filter types and Health
Production manufacturers.
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