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NB/SH/T 0969-2018

Chinese Standard: 'NB/SH/T 0969-2018'
Standard IDContents [version]USDSTEP2[PDF] delivered inStandard Title (Description)StatusRelated Standard
NB/SH/T 0969-2018English179 Add to Cart Days<=3 Standard test method for determination of diene value of petroleum products by malefic anhydride addition reaction Valid NB/SH/T 0969-2018
NB/SH/T 0969-2018Chinese16 Add to Cart <=1-day [PDF from Chinese Authority, or Standard Committee, or Publishing House]  

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Detail Information of 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: 9,922
Date of Issue: 2018-10-29
Date of Implementation: 2019-03-01
Drafting Organization: China National Petroleum Corporation Lanzhou Lubricant Research and Development Center
Administrative Organization: National Petroleum Products and Lubricants Standardization Technical Committee Petroleum Fuels and Lubricants Subcommittee
Regulation (derived from): National Energy Administration Announcement No.12 of 2018
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


Related standard:   NB/SH/T 0974-2018  NB/SH/T 0975-2018
   
 
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