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NBSHT0969-2018 PDF English

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NBSHT0969-2018: Standard test method for determination of diene value of petroleum products by malefic anhydride addition reaction
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NB/SH/T 0969-2018English209 Add to Cart 3 days [Need to translate] Standard test method for determination of diene value of petroleum products by malefic anhydride addition reaction

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Basic data

Standard ID NB/SH/T 0969-2018 (NB/SH/T0969-2018)
Description (Translated English) Standard test method for determination of diene value of petroleum products by malefic anhydride addition reaction
Sector / Industry Energy Industry Standard (Recommended)
Classification of Chinese Standard E30
Classification of International Standard 75.080
Word Count Estimation 9,965
Date of Issue 2018-10-29
Date of Implementation 2019-03-01
Regulation (derived from) National Energy Administration Announcement No.12 of 2018
Issuing agency(ies) National Energy Administration
Summary This standard specifies the method for determining the diene value of petroleum products by potentiometric titration. This standard applies to debutanized light and middle distillates and related products. The range of diene values ??is from 0.6 gI2/100g to 148gI2/100g. For the sample with a diene value of less than 1.2 gI2/100g, a modified procedure is adopted (see 10.2). The measurement was carried out. This assay is an empirical method because some conjugated diolefins are not completely reacted at the same time, and some compounds that are not conjugated dienes may also participate in the reaction. For example, hydrazine and most of its homologs and alkyl-substituted compounds, as well as certain vinyl aromatic compounds, can react with maleic anhydride. Therefore, the interpretation of the results obtained in this standard should consider the above limitations. If the average of conjugated diolefins

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