GB/T 2366-2008 English PDFUS$229.00 · In stock
Delivery: <= 3 days. True-PDF full-copy in English will be manually translated and delivered via email. GB/T 2366-2008: Determination of water content in industrial chemicals -- Gas chromatographic method Status: Valid GB/T 2366: Historical versions
Basic dataStandard ID: GB/T 2366-2008 (GB/T2366-2008)Description (Translated English): Determination of water content in industrial chemicals -- Gas chromatographic method Sector / Industry: National Standard (Recommended) Classification of Chinese Standard: G04 Classification of International Standard: 71.040 Word Count Estimation: 10,198 Date of Issue: 2008-05-14 Date of Implementation: 2008-10-01 Older Standard (superseded by this standard): GB/T 2366-1986 Quoted Standard: GB/T 3723; GB/T 6682-1992; GB/T 8170; GB/T 9722-2006 Regulation (derived from): National Standard Approval Announcement 2008 No.8 (Total No.121) 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 test methods for the determination of water content of chemical products by gas chromatography. This standard applies to the determination of water content in the organic liquid. Including alcohol, ketones, hydrocarbons, halogenated, esters. Determination of water content in the range of 0. 003% to 1. 0 %. GB/T 2366-2008: Determination of water content in industrial chemicals -- Gas chromatographic method---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 water contentin industrial chemicals. Gas chromatographic method Book UDC71.040 G04 National Standards of People's Republic of China Replacing GB/T 2366-1986 Determination of chemical products, water content Gas chromatography Posted 2008-05-14 2008-10-01 implementation Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China Standardization Administration of China released ForewordThis standard replaces GB/T 2366─1986 "chemical products Determination of moisture content by gas chromatography." This standard compared with GB/T 2366─1986 main changes are as follows. --- Determination of water by the range of 0.05% to 1.0% revised to 0.003% to 1.0% (see Chapter 1); --- Increased chromatographic operating conditions and typical chromatograms Typical chemical products (see Appendix A); --- Increasing the addition calculation formula in the water content (see 3.8.5.2); --- Increased n-heptane saturated water solubility table (see Appendix B). Appendix A of this standard and Appendix B is an informative annex. The standard proposed by China Petroleum and Chemical Industry Association. This standard by the National Standardization Technical Committee branch of organic chemistry (SAC/TC63/SC2) centralized. This standard was drafted. China Petroleum and Chemical Corporation Beijing Yanshan Company Chemicals Division, China Petroleum & Chemical shares have Limited Beijing Research Institute of Chemical Industry. The main drafters of this standard. Zhoushi Wang, Zhao Bing, Guo Yanling, Tao Chun-sheng. This standard was first published in 1980; in April 1986 the first amendment. Determination of chemical products, water content Gas chromatography1 ScopeThis standard specifies the test method for the determination of chemical products in the water content by gas chromatography. This standard applies to the determination of water content in the organic liquid, including alcohols, ketones, hydrocarbons, halogenated hydrocarbons, esters and the like. Determination of water content (Mass fraction) in the range of 0.003% to 1.0%.2 Normative referencesThe 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 3723 Sampling of chemical products for industrial use General Safety Laboratory use - Specification and test methods (. 1987 neq ISO 3696) GB/T 6682-1992 Analysis GB/T 8170 numerical rounding rules GB/T 9722-2006 General chemical reagent gas chromatography3 Test Method3.1 Warning Some test procedures prescribed test method can lead to dangerous situations, the operator shall take the appropriate safety and health practices. 3.2 General Provisions Unless otherwise indicated in the analysis using only recognized as analytical reagents and GB/T 6682-1992 the provisions of tertiary water. 3.3 Method summary By gas chromatography, under the selected operating conditions, the standard sample and the amount of samples were injected into the gas chromatograph with the other components of the water It was isolated, with a thermal conductivity detector and measurement sample and standard samples of water peak height or peak area, external standard method or internal quantitative addition. 3.4 Reagents 3.4.1 Carrier gas. hydrogen or helium, the volume fraction of not less than 99.9%, silica gel and molecular sieve drying, purification; 3.4.2 n-heptane; 3.4.3 Benzene; 3.4.4 anhydrous organic solvent; measured using the external standard method, product water content exceeds 0.1%, the same sample can be used with an organic solvent, The organic solvent used traces of water or other molecular sieve dehydration after dehydration substance contained in Table A. 1 chromatographic determination of working conditions should be dry peaks, And the organic solvent miscible with water having characteristics. Users may also need to choose other related reagents. It is also available commercially standard sample. 3.5 Instrument 3.5.1 Gas chromatograph. equipped with a thermal conductivity detector, sensitivity and stability of the machine should be consistent with GB/T 9722-2006 of the relevant provisions, Chapter 1 had the lowest measured water content in the range of produce high peak should be greater than twice the noise. When analyzing a sample instrument to be equipped with high-boiling Cleaning devices. 3.5.2 Recorder. chromatographic data processor or chromatography workstation. 3.5.3 Injector. micro-injector, 1μL or 10μL. ......Tips & Frequently Asked Questions:Question 1: How long will the true-PDF of GB/T 2366-2008_English be delivered?Answer: Upon your order, we will start to translate GB/T 2366-2008_English as soon as possible, and keep you informed of the progress. The lead time is typically 1 ~ 3 working days. 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Otherwise, follow the normal steps: Add to Cart -- Checkout -- Select your currency to pay.Question 5: Should I purchase the latest version GB/T 2366-2008?Answer: Yes. Unless special scenarios such as technical constraints or academic study, you should always prioritize to purchase the latest version GB/T 2366-2008 even if the enforcement date is in future. Complying with the latest version means that, by default, it also complies with all the earlier versions, technically. |
