GB/T 1816-2019 PDF English
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GB/T 1816: Historical versions
| Standard ID | USD | BUY PDF | Delivery | Standard Title (Description) | Status |
| GB/T 1816-2019 | 115 | Add to Cart | Auto, 9 seconds. | Test for neutrality of benzol products | Valid |
| GB/T 1816-1997 | 179 | Add to Cart | 2 days | Test for neutrality of benzole products | Obsolete |
| GB 1816-1979 | 199 | Add to Cart | 2 days | Determination of the reaction for benzene-homologue products | Obsolete |
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GB/T 1816-2019: Test for neutrality of benzol products
---This is an excerpt. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.), auto-downloaded/delivered in 9 seconds, can be purchased online: https://www.ChineseStandard.net/PDF.aspx/GBT1816-2019NATIONAL STANDARD OF THE PEOPLE’S REPUBLIC OF CHINA ICS 71.080 G 18 Replacing GB/T 1816-1997 Test for Neutrality of Benzole Products ISSUED ON: JUNE 4, 2019 IMPLEMENTED ON: JANUARY 1, 2020 Issued by: State Administration for Market Regulation; Standardization Administration of the People’s Republic of China.
Table of Contents
Foreword ... 3 1 Scope ... 4 2 Normative References ... 4 3 Principle ... 4 4 Sampling and Sample Preparation ... 4 5 Reagents ... 5 6 Instruments ... 5 7 Test Procedures ... 5 8 Test Result ... 5 Test for Neutrality of Benzole Products Warning: benzole products are volatile toxic and harmful substances; operators shall properly wear protective articles, for example, gas mask, and operate in ventilation hood.1 Scope
This Standard stipulates the principle, sampling and sample preparation, reagents, instruments, test procedures and test result of test for neutrality of benzole products. This Standard is applicable to test for neutrality of benzole products, such as crude benzole, which is recovered from coke oven gas; coking benzene, coking toluene and coking xylene, which are obtained from light benzene through hydrogenation and rectification; petroleum benzene, petroleum toluene and petroleum mixed xylene, which are produced from petroleum fraction through catalytic reforming process, etc.2 Normative References
The following documents are indispensable to the application of this document. In terms of references with a specified date, only versions with a specified date are applicable to this document. In terms of references without a specified date, the latest version (including all the modifications) is applicable to this document. GB/T 603 Chemical Reagent - Preparations of Reagent Solutions for Use in Test Methods; GB/T 1999 Sampling of Coking Oil Products; GB/T 4756 Method for Manual Sampling of Petroleum Liquids3 Principle
At room temperature, use quantitative water to extract quantitative sample. Use the acidity and alkalinity of the extract to express the acidity and alkalinity of products.4 Sampling and Sample Preparation
The sampling and sample preparation of benzole products shall comply with the stipulations in GB/T 1999 and GB/T 4756. ......Source: Above contents are excerpted from the full-copy PDF -- translated/reviewed by: www.ChineseStandard.net / Wayne Zheng et al.