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GB/T 8035-2009 English PDF

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GB/T 8035-2009: Benzol products of coal carbonization -- Determination of acid wash test
Status: Valid

GB/T 8035: Evolution and historical versions

Standard IDContents [version]USDSTEP2[PDF] delivered inStandard Title (Description)StatusPDF
GB/T 8035-2009English139 Add to Cart 3 days [Need to translate] Benzol products of coal carbonization -- Determination of acid wash test Valid GB/T 8035-2009
GB/T 8035-1987English199 Add to Cart 2 days [Need to translate] Benzol products of coal carbonization--Determination of acid-wash test Obsolete GB/T 8035-1987

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Basic data

Standard ID GB/T 8035-2009 (GB/T8035-2009)
Description (Translated English) Benzol products of coal carbonization -- Determination of acid wash test
Sector / Industry National Standard (Recommended)
Classification of Chinese Standard G17
Classification of International Standard 71.080.15
Word Count Estimation 6,692
Date of Issue 2009-07-08
Date of Implementation 2010-04-01
Older Standard (superseded by this standard) GB/T 8035-1987
Quoted Standard GB/T 1999
Regulation (derived from) National Standard Approval Announcement 2009 No.9 (Total No.149)
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 principles of coking benzene products pickling colorimetric determination, sampling, test procedure, , reagents, instruments and precision of results. This standard applies to coking benzene, coking toluene, coking xylene acid colorimetric determination.

GB/T 8035-2009: Benzol products of coal carbonization -- Determination of acid wash test

---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.
Benzol products of coal carbonization.Determination of acid wash test ICS 71.080.15 G17 National Standards of People's Republic of China Replacing GB/T 8035-1987 Coking benzene products Pickling colorimetric determination Posted 2009-07-08 2010-04-01 implementation Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China Standardization Administration of China released

Foreword

This standard replaces GB/T 8035-1987 "coking benzene products Pickling colorimetric determination." This standard and GB/T 8035-1987 compared to the main changes are as follows. --- Increase the "scope", "Normative references" and "Test Report" of three parts; --- Increased the instrument's provisions; --- Specification standard formats and units. The standard proposed by China Iron and Steel Association. This standard is under the jurisdiction of the National Steel Standardization Technical Committee. This standard was drafted. Wuhan University of Science and Technology, Metallurgical Industry Information Standards Institute. The main drafters of this standard. Ho Xuan-ming, Zhao Minlun, Oriole, Zhang Huajun, Sun Wei. This standard replaces the standards previously issued as follows. --- GB/T 8035-1987. Coking benzene products Pickling colorimetric determination

1 Scope

This standard specifies the principles of coking benzene products Pickling than color measurement, sampling, reagents, instruments, test procedures, and results showed that the precision. This standard applies to coking benzene, toluene coking, coking xylene acid colorimetric assay.

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 1999 coking oil products sampling methods Principle 3 The sample was washed with a concentration of 95% sulfuric acid, sulfuric acid layer depth comparison of color, indicating the extent of refined benzene product.

4 Sampling

According to GB/T 1999 regulations, the material from a large number of random representative sample taken at least 1000mL of.

5 Reagents

5.1 Potassium dichromate. AR. 5.2 Concentrated sulfuric acid. AR concentration of about 98%, or nearly 18mol/L. 5.3 sulfuric acid solution. 95% ± 0.5%. 5.4 potassium permanganate. AR. 5.5 potassium permanganate solution. 1L solution containing 3.2g of potassium permanganate. 5.6 double distilled water or equivalent purity.

6 Instruments

6.1 colorimetric tube mill mouth. with a ground stopper, high 100mm, inner diameter of 13mm ± 0.5mm colorless transparent tube, there are two standard colorimetric tube ring Engraved lines engraved on the bottom line from 70mm ± 1mm, the next engraved line bisecting its volume, two parts does not exceed the difference between the volume of 0.1mL. 6.2 volumetric flask. volume 1000mL. 6.3 pipette or burette. 6.4 water bath. to maintain the 20 ℃ ± 1 ℃. 6.5 colorimetric box. lined with white porcelain plates and a fluorescent lamp. 6.6 Oscillator. Ping Zhen Zhen distance 100mm, frequency of 150 times/min ± 10 times/min.

7 Test procedure

7.1 preparation of standard colorimetric solution 7.1.1 Alternate preparation of sulfuric acid. one double distilled water and a concentration of about 98% concentrated sulfuric acid (1/1) mixed preparation. 7.1.2 previously dried to constant weight of potassium dichromate by 105 ℃ ~ 110 ℃ 10g ± 0.0002g spare sulfuric acid dissolved in 1000mL As a liquid formulation, and as shown in Table 1, the preparation of different concentrations of colorimetric solution.

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