GB/T 1885-1998: Petroleum measurement tables

Delivery: 9 seconds. Download (and Email) true-PDF + Invoice.
Get Quotation: Click GB/T 1885-1998 (Self-service in 1-minute)
Newer / historical versions: GB/T 1885-1998

Preview True-PDF

Scope

This Standard specifies methods for converting glass petroleum densitometer readings
(observed density) obtained at non-standard temperatures into density at standard temperatures
(standard density) and volume correction factor.
This Standard applies to crude oil, lubricants and other liquid petroleum products.
The standard temperature specified in this Standard is 20°C.
The thermal expansion data of the oil used in the preparation of petroleum measurement tables
in this standard is consistent with ISO 91-1.
NOTE: When compiling the petroleum measurement tables, the thermal expansion of glass used to
correct the density meter reading is consistent with ISO 91-1, which is also 23×10-6°C-1, which is slightly
lower than the conventional value quoted in ISO 1768 (25×10-6°C-1), but under the actual maximum
temperature difference, the difference between these two s has little effect on the correction result. If both
parties to the trade agree that the impact of this error shall be considered, 0.000002ρt' (t-20) can be
subtracted from the density meter reading before checking the standard density meter, where ρt' is the
glass density meter reading and t is the test temperature.

Basic Data

Standard ID	GB/T 1885-1998 (GB/T1885-1998)
Description (Translated English)	Petroleum measurement tables
Sector / Industry	National Standard (Recommended)
Classification of Chinese Standard	A53
Classification of International Standard	17.02
Word Count Estimation	16,142
Date of Issue	6/17/1998
Date of Implementation	3/1/1999
Older Standard (superseded by this standard)	GB/T 1885-1983 (1991)
Quoted Standard	GB/T 1884; ISO 91-1; ISO 1768
Adopted Standard	ISO 91-2-1991, MOD
Issuing agency(ies)	State Quality and Technical Supervision
Summary	This standard specifies the obtained oil in non-standard temperature glass hydrometer readings (apparent density) in terms of the density of the standard temperature (standard density) and volume correction factor approach. This standard applies to crude oil, lubricating oil and other liquid petroleum products.