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ISO 6851:2001

Current
Current

The latest, up-to-date edition.

Photography Processing waste Determination of total amino nitrogen (microdiffusion Kjeldahl method)
Available format(s)

Hardcopy , PDF , PDF 3 Users , PDF 5 Users , PDF 9 Users

Language(s)

English

Published date

20-12-2001

This International Standard specifies a method for the determination of the total organic nitrogen, as well as any

ammoniacal nitrogen, present in photographic processing wastes by the Kjeldahl method.

Total Kjeldahl nitrogen can be determined in photographic processing wastes in the range of 10 mg/l to 200 mg/l as

ammonia, or in the range of 8 mg/l to 160 mg/l in terms of nitrogen. If ammoniacal nitrogen (see ISO 6853) is

determined separately and subtracted, the concentration of organic amino nitrogen can be established.

DevelopmentNote
Supersedes ISO/FDIS 6851 (12/2001)
DocumentType
Standard
Pages
10
PublisherName
International Organization for Standardization
Status
Current
Supersedes

Standards Relationship
NEN ISO 6851 : 2002 Identical
BS ISO 6851:2001 Identical
ANSI PH4.47 : 1991 Identical

BS ISO 6853:2001 Photography. Processing waste. Determination of ammoniacal nitrogen (microdiffusion method)
ISO 6853:2001 Photography Processing waste Determination of ammoniacal nitrogen (microdiffusion method)

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ISO 6853:2001 Photography Processing waste Determination of ammoniacal nitrogen (microdiffusion method)

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