GB/T 5526-1985: Inspection of vegetable oils. Methods for determination of specific gravity

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Scope

1.1 Instruments and utensils
1.1.1 Liquid specific gravity balance;
1.1.2 Beakers, pipettes, etc.
1.2 Reagents
1.2.1 Washing fluid;
1.2.2 Ethanol, ether;
1.2.3 Distilled water without carbon dioxide;
1.2.4 Absorbent cotton, filter paper, etc.
1.3 Operation method
1.3.1 Weigh the water: According to the instructions for the use of the instrument, first
calibrate the instrument, hang No.1 weight on the hook, and inject distilled water into
the measuring cylinder until the platinum wire on the buoy is immersed 1 cm in the
water. Adjust the water to 20 °C, turn the screw on the balance base to balance the
balance, and do not move it again. Pour out the water in the measuring cylinder, use
ethanol first and then ether to remove the water on the buoy, measuring cylinder and
thermometer, and then wipe dry with absorbent cotton.
1.3.2 Weigh the sample: Inject the sample into the measuring cylinder until the platinum
wire on the buoy is immersed 1 cm into the sample. When the sample temperature
reaches 20 °C, add weights to the groove of the balance to restore the balance to balance.
How to use the weights: First move the No.1 weight on the hook to the groove "9", then
add the No.2, No.3, and No.4 weights to the grooves to balance the balance.
1.4 Result calculation

Basic Data

Standard ID	GB/T 5526-1985 (GB/T5526-1985)
Description (Translated English)	Inspection of vegetable oils. Methods for determination of specific gravity
Sector / Industry	National Standard (Recommended)
Classification of Chinese Standard	X10
Classification of International Standard	67.200.10
Word Count Estimation	3,378
Date of Issue	11/2/1985
Date of Implementation	7/1/1986
Issuing agency(ies)	National Bureau of Standards
Summary	This standard applies to the determination of the proportion of goods of vegetable oils.