NEN-ISO 6851
Photography - Processing waste - Determination of total amino nitrogen (microdiffusion Kjeldahl method)
active, Most Current
| Organization: | NEN |
| Publication Date: | 1 January 2002 |
| Status: | active |
| Page Count: | 22 |
| ICS Code (Special wastes): | 13.030.30 |
| ICS Code (Photographic chemicals): | 37.040.30 |
scope:
Specifies a method for the determination of the total organic nitrogen, as wel as any ammoniacal nitrogen, present in photographic processing wastes by the Kjehldahl method.
Document History
NEN-ISO 6851
January 1, 2002
Photography - Processing waste - Determination of total amino nitrogen (microdiffusion Kjeldahl method)
Specifies a method for the determination of the total organic nitrogen, as wel as any ammoniacal nitrogen, present in photographic processing wastes by the Kjehldahl method.