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GB/T 19224-2017 English PDF (GB/T 19224-2003)

GB/T 19224-2017_English: PDF (GB/T19224-2017)
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GB/T 19224-2017English139 Add to Cart 3 days [Need to translate] Determination of the relative degree of oxidation in bituminous coal Valid GB/T 19224-2017
GB/T 19224-2003English199 Add to Cart 2 days [Need to translate] Determining the relative degree of oxidation in bituminous coal Obsolete GB/T 19224-2003


BASIC DATA
Standard ID GB/T 19224-2017 (GB/T19224-2017)
Description (Translated English) Determination of the relative degree of oxidation in bituminous coal
Sector / Industry National Standard (Recommended)
Classification of Chinese Standard D21
Word Count Estimation 7,754
Date of Issue 2017-09-07
Date of Implementation 2018-04-01
Older Standard (superseded by this standard) GB/T 19224-2003
Drafting Organization Coal Science and Technology Research Institute Co., Ltd. Detection Branch
Administrative Organization National Coal Standardization Technical Committee (SAC/TC 42)

BASIC DATA
Standard ID GB/T 19224-2003 (GB/T19224-2003)
Description (Translated English) Determining the relative degree of oxidation in bituminous coal
Sector / Industry National Standard (Recommended)
Classification of Chinese Standard D21
Classification of International Standard 73.040
Word Count Estimation 5,512
Date of Issue 2003-07-01
Date of Implementation 2003-11-01
Adopted Standard ASTM D5263-1993, NEQ
Drafting Organization CCRI coal analysis laboratory
Administrative Organization National Coal Standardization Technical Committee
Proposing organization China Coal Industry Association
Issuing agency(ies) General Administration of Quality Supervision, Inspection and Quarantine of the People Republic of China
Summary This standard specifies the alkaline extraction solution based on bituminous coal to determine the chromaticity of the relative degree of oxidation of bituminous coal feed method, reagents and materials, equipment, measurement procedures, results calculation and precision of the method and so on. This standard applies to coking bituminous coal. This standard applies only to the determination of the oxidation of coking under natural conditions, degree of oxidation of bituminous coal.


GB/T 19224-2017 Determination of the relative degree of oxidation in bituminous coal ICS 73.040 D21 National Standards of People's Republic of China Replacing GB/T 19224-2003 Determination of relative oxidation degree of bituminous coal 2017-09-07 Posted 2018-04-01 implementation General Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China China National Standardization Administration released Directory Foreword Ⅲ 1 range 1 2 Normative references 1 3 Method summary 1 4 Reagents and materials 1 5 equipment 1 6 determination step 2 7 Results Calculation and Presentation 2 8 Method precision 2 9 Test Report 3 Appendix A (informative) Test result description 4 Foreword This standard was drafted in accordance with the rules given in GB/T 1.1-2009. This standard replaces GB/T 19224-2003 "Determination of relative oxidation of bituminous coal." This standard compared with GB/T 19224-2003, In addition to editorial changes, the main technical content changes as follows. --- Increasing the wetting agent (see 4.1); --- The test coal particle size from less than 3mm to less than 0.2mm (see 6.1,.2003 Edition Chapter 6); --- Added "test report" chapter (see Chapter 9). This standard is proposed by China Coal Industry Association. This standard by the National Coal Standardization Technical Committee (SAC/TC42) centralized. This standard was drafted unit. Coal Science and Technology Research Institute Co., Ltd. testing branch. The main drafters of this standard. Sui Yan, Fu Kun, Yang Ni. This standard was previously issued version. --- GB/T 19224-2003. Determination of relative oxidation degree of bituminous coal 1 Scope This standard specifies the method of alkaline extraction method for determination of relative oxidation of bituminous coal feed, reagents and materials, equipment, determination steps, the results of the meter Computation and expression, method precision and test report. This standard applies to natural conditions of bituminous coal oxidation. 2 Normative references The following documents for the application of this document is essential. For dated references, only the dated version applies to this article Pieces. For undated references, the latest edition (including all amendments) applies to this document. GB/T 483 Methods of analysis of coal - General provisions of test methods 3 method summary A certain amount of bituminous coal extract with sodium hydroxide solution after the oxidation of humic acid, the alkali extract colorimetric determination, according to the solution of Light transmittance to determine the relative oxidation of bituminous coal. 4 Reagents and materials Unless otherwise specified, only reagents identified as analytically pure and distilled or deionized water or rather pure water are used in the assay. 4.1 Wetting agents. Octylphenoxypolyethoxyethanol nonionic surfactant, 100% strength, should not be diluted. Note Wetting agents can also use 20g/L sodium lauryl sulfate solution. 4.2 sodium hydroxide solution .1mol/L. Weigh sodium hydroxide 40g, dissolved in water and diluted to 1000mL. 4.3 filter paper. Qualitative medium-speed filter paper. 5 equipment 5.1 Spectrophotometer. 5.2 cuvette. 10mm. 5.3 hot plate or electric furnace. Temperature adjustable. 5.4 Balance. Divide the value of 0.001g. 5.5 Thermometer. Range 0 ℃ ~ 100 ℃, the smallest sub-value of 0.5 ℃. 5.6 Timer. Can be timed to 30min, accurate to seconds. 5.7 measuring tube .100mL. 5.8 beaker .400mL. ......

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