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GB/T 14326: Historical versions
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| GB/T 14326-2009 | English | 149 |
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Determination of carbon disulfide content in benzene
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| GB/T 14326-1993 | English | 199 |
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Basic data
| Standard ID | GB/T 14326-2009 (GB/T14326-2009) |
| Description (Translated English) | Determination of carbon disulfide content in benzene |
| Sector / Industry | National Standard (Recommended) |
| Classification of Chinese Standard | G17 |
| Classification of International Standard | 71.080.15 |
| Word Count Estimation | 5,549 |
| Date of Issue | 2009-07-08 |
| Date of Implementation | 2010-04-01 |
| Older Standard (superseded by this standard) | GB/T 14326-1993 |
| Quoted Standard | GB/T 684; GB/T 690; GB/T 1999; GB/T 8170; GB/T 9977; HG/T 3486; YB/T 5155 |
| 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 benzene carbon disulfide content determination, reagents, instrument, sampling, trial preparation, test procedures and test errors. This standard applies to the determination of the content of benzene in carbon disulfide. |
GB/T 14326-2009: Determination of carbon disulfide content in benzene
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Determination of carbon disulfide content in benzene
ICS 71.080.15
G17
National Standards of People's Republic of China
Replacing GB/T 14326-1993
Determination of carbon disulfide content in benzene
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 14326-1993 "Determination of benzene carbon disulfide content."
This standard and GB/T 14326-1993 compared to the main changes are as follows.
--- Increasing the normative references;
--- Use of legal units of measurement.
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. Zhao Minlun, Ho Xuan-ming, Chen Xiaoxia, Zhang Shaochun, Sun Wei.
This standard replaces the standards previously issued as follows.
--- GB/T 14326-1993.
Determination of carbon disulfide content in benzene
1 Scope
This standard specifies the principles of the benzene carbon disulfide content determination, reagents, apparatus, sampling, test preparation, test procedures and test errors.
This standard applies to the determination of benzene content in carbon disulfide. Measurement range. content 0.0001g/100mL ~ 0.0006g/100mL
Range benzene; also suitable for use as toluene or benzene carbon disulfide content was diluted to the range of benzene.
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 684 chemical reagent toluene
GB/T 690 chemical reagent benzene
GB/T 1999 coking oil products sampling methods
GB/T 8170 repair value expressed about the rules and limit values \u200b\u200band judgment
GB/T 9977 coking products term
HG/T 3486 Chemicals diethylamine
YB/T 5155 Determination of coking products General
Principle 3
Benzene, carbon disulfide and diethylamine, the reaction of copper acetate orange diethyl dithiocarbamate copper, spectrophotometric
Determination.
Reaction equation is.
CS2 + (C2H5) 2 → NH (C2H5) 2NCS2H (diethyl dithiocarbamate)
2 (C2H5) 2NCS2H + Cu (C2H3O2) → 2 [(C2H5) 2NCS2] 2Cu + 2CH3COOH
4 Reagents
4.1 Carbon disulfide. AR.
4.2 diethylamine. HG/T 3486 AR.
4.3 Benzene. GB/T 690 AR, the absorbance is not greater than 0.005.
4.4 Toluene. GB/T 684 AR, the absorbance is not greater than 0.005.
Copper acetate 4.5. AR.
4.6 copper acetate solution. 0.03g of copper acetate was dissolved in 100mL anhydrous ethanol.
5 Instruments
5.1 Spectrophotometer. wavelength of 400nm ~ 700nm.
5.2 Cuvette. 1cm.
5.3 mill mouth cylinder. 50mL.
Pipette 5.4. 1mL, 10mL, 25mL.
5.5 Buret. 5mL, 25mL.
...
