GB/T 11903-1989 English PDF

US$159.00 · In stock
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GB/T 11903-1989: Water quality. Determination of colority

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
GB/T 11903-1989	159	Add to Cart	2 days	Water quality. Determination of colority

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Basic data

Standard ID: GB/T 11903-1989 (GB/T11903-1989)
Description (Translated English): Water quality. Determination of colority
Sector / Industry: National Standard (Recommended)
Classification of Chinese Standard: Z16
Classification of International Standard: 13.060.40
Word Count Estimation: 4,497
Date of Issue: 11/3/1989
Date of Implementation: 7/1/1990
Adopted Standard: ISO 7887-1985, NEQ
Issuing agency(ies): State Bureau of Technical Supervision
Summary: This standard specifies the method for the determination of two colors. This standard is determined by the color of the sample after 15min clarification. pH value have a greater impact on the color, the color measurement of pH should be measured at the same time. Platinum-cobalt colorimetry reference international standards ISO 7887-1985 "Water color test and measurement. " Platinum-cobalt assay suitable for clean water, light pollution and slightly yellow tint water cleaner surface water, groundwater and drinking water. Dilution law applies to more polluting surface water and industrial wastewater. Two kinds of methodologies should be used independently, generally not comparable. When the color of the sample and standard solutions tones inconsistent, this standard does not apply.

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