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Standard ID	Contents [version]	USD	STEP2	[PDF] delivered in	Standard Title (Description)	Status	Related Standard
NB/SH/T 0838-2010	English	509	Add to Cart	Days<=4	Determination of polycyclic aromatics (PCA) in unused lubricating base oils and asphaltene free petroleum fractions. Dimethyl sulphoxide extraction refractive index method	Valid	NB/SH/T 0838-2010
NB/SH/T 0838-2010	Chinese	19	Add to Cart	<=1-day	[PDF from Chinese Authority, or Standard Committee, or Publishing House]

Detail Information of NB/SH/T 0838-2010; NB/SH/T0838-2010
Description (Translated English): Determination of polycyclic aromatics (PCA) in unused lubricating base oils and asphaltene free petroleum fractions. Dimethyl sulphoxide extraction refractive index method
Sector / Industry: Energy Industry Standard (Recommended)
Classification of Chinese Standard: E34
Classification of International Standard: 75.100
Word Count Estimation: 22,233
Date of Issue: 2010-05-01
Date of Implementation: 2010-10-01
Quoted Standard: GB/T 265; GB/T 4756; GB/T 6536; GB/T 9168; SH/T 0724
Adopted Standard: IP 346-1996, MOD
Drafting Organization: China Institute of PetroChina Karamay oil
Administrative Organization: National Petroleum Products and Lubricants Standardization Technical Committee
Regulation (derived from): National Energy Board Notice No. 1 of 2010
Summary: This standard applies to the determination of the standard atmospheric pressure (101. 3kPa), the fraction is less than 300��C not more than 5% (volume fraction recovered) containing no additives unused lubricating base oils polycyclic aromatic hydrocarbons (PCA) content, PGA content ranging from 1% (mass fraction) -15% (mass fraction). 1. 2 standard can also be used to determine the polycyclic aromatic hydrocarbons (PCA) content beyond this range and other non-petroleum fractions asphaltenes, but precision has not been determined.

Related standard:   NB/SH/T 0832-2010  NB/SH/T 0834-2010