SN/T 0542: Evolution and historical versions
| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | Status | PDF |
| SN/T 0542-2010 | English | 199 |
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Test method for determination of quinoline-insoluble (QI) content in exported coal tar
| Obsolete |
SN/T 0542-2010
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| SN/T 0542-1996 | English | 199 |
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2 days [Need to translate]
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Test method for determination of quinoline-insoluble (QI)content in exported coal tar
| Obsolete |
SN/T 0542-1996
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PDF similar to SN/T 0542-2010
Basic data | Standard ID | SN/T 0542-2010 (SN/T0542-2010) | | Description (Translated English) | Test method for determination of quinoline-insoluble (QI) content in exported coal tar | | Sector / Industry | Commodity Inspection Standard (Recommended) | | Classification of Chinese Standard | G18 | | Word Count Estimation | 5,534 | | Date of Issue | 2010-11-01 | | Date of Implementation | 2011-05-01 | | Older Standard (superseded by this standard) | SN/T 0542-1996 | | Quoted Standard | GB/T 2288 | | Regulation (derived from) | National Quality Inspection (2010) 582 | | Issuing agency(ies) | General Administration of Customs | | Summary | This standard specifies the use of filtration method for the determination of export coal tar quinoline insolubles content. This standard applies to exports of coal tar quinoline insolubles determination. | SN/T 0542-2010: Test method for determination of quinoline-insoluble (QI) content in exported coal tar
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Test method for determination of quinoline-insoluble (QI) content in exported coal tar
People's Republic of China Entry-Exit Inspection and Quarantine Standards
Instead of the SN/T 0542-1996
Determination of export coal tar quinoline insolubles
Determinationofquinoline-insoluble (QI)
Issued on. 2010-11-01
2011-05-01 implementation
People's Republic of China
The State Administration of Quality Supervision, Inspection and Quarantine released
Foreword
Instead of the standard SN/T 0542-1996 "Determination of export quinoline insoluble tar."
This standard SN/T 0542-1996 basis, according to GB/T 1.1-2009 "Standardization Guide Part 1. Standard knot
Structure and write rules "revision compared with the SN/T 0542-1996 The main changes are as follows.
--- Standard name "export coal tar determination quinoline insolubles" to "Determination of export coal tar quinoline insolubles"
(The 1996 version of the cover title and text of the title, cover title Excerpts from the text of the title).
--- "Reference standard" to "normative references" (1996 edition Chapter 2, Section 2 of this edition).
--- "Instruments and reagents" to "agent" and "instruments and equipment" to be expressed in two terms (1996 Edition Chapter 4, the first edition
Chapter 54 and Chapter).
This standard is proposed and managed by the National Certification and Accreditation Administration Committee.
This standard is drafted by. People's Republic of China Liaoning Province Exit Inspection and Quarantine.
The main drafters of this standard. Mouming Ren, Li Bai Ge, Chen Xinyue, Sunyan Wei, Liu famous, Bailing, Liu Ran, Zhao Xuerong, right Xing, Dong Weifeng.
Determination of export coal tar quinoline insolubles
1 Scope
This standard specifies the determination of export coal tar quinoline insolubles content filtration method.
This standard is applicable to the determination of export coal tar quinoline insolubles in.
2 Normative references
The following documents for the application of this document is essential. For dated references, only the dated version suitable for use herein
Member, undated references, the latest edition (including any amendments) applies to this document.
GB/T 2288 coking products Determination of moisture content
3 Method summary
Certain quality coal tar sample was dissolved in hot quinoline, filtered, dried and weighed to calculate the content of insolubles in mass fraction
FIG.
4 Reagents
4.1 quinoline, AR.
4.2 toluene, AR.
4.3 acetone, AR.
4.4 hydrochloric acid. chemically pure, dubbed aqueous solution of 1.1.
4.5 diatomaceous earth. pure chemistry, particle diameter of about 0.125mm (120 mesh), and dried prior to testing 2h at 105 ℃ ± 1 ℃.
Warning --- toxic and flammable reagents, the operation should isolate the source of fire and in a fume hood.
5. Apparatus
5.1 dryer.
5.2 pump. 1400r/min.
5.3 suction bottle. the volume of 1000mL.
5.4 glass beaker. the volume of 100mL, before the test and dried at 105 ℃ ± 1 ℃ to constant weight.
5.5 Analysis of balance. a sense of the amount of 0.1mg.
5.6 electric oven.
5.7 constant temperature water bath. bath temperature control 75 ℃ ± 5 ℃.
5.8 glass crucible filter (referred to as the filter). P7 (G4), the volume of 25mL ~ 40mL, prior to the test at 105 ℃ ± 1 ℃ dried to constant weight.
Step 6 Analysis
6.1 Weigh about 1.0g dried diatomaceous earth, put a clean filter (5.8) and immediately weighed to the nearest 0.0001g.
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