ISO/TC 42
| Projekta Nr. | ISO 6851:2001 |
|---|---|
| Nosaukums | <p>This International Standard specifies a method for the determination of the total organic nitrogen, as well as any</p> <p>ammoniacal nitrogen, present in photographic processing wastes by the Kjeldahl method.</p> <p>Total Kjeldahl nitrogen can be determined in photographic processing wastes in the range of 10 mg/l to 200 mg/l as</p> <p>ammonia, or in the range of 8 mg/l to 160 mg/l in terms of nitrogen. If ammoniacal nitrogen (see ISO 6853) is</p> <p>determined separately and subtracted, the concentration of organic amino nitrogen can be established.</p> |
| Reģistrācijas numurs (WIID) | 32493 |
| Darbības sfēra | <p>This International Standard specifies a method for the determination of the total organic nitrogen, as well as any</p> <p>ammoniacal nitrogen, present in photographic processing wastes by the Kjeldahl method.</p> <p>Total Kjeldahl nitrogen can be determined in photographic processing wastes in the range of 10 mg/l to 200 mg/l as</p> <p>ammonia, or in the range of 8 mg/l to 160 mg/l in terms of nitrogen. If ammoniacal nitrogen (see ISO 6853) is</p> <p>determined separately and subtracted, the concentration of organic amino nitrogen can be established.</p> |
| Statuss | Standarts spēkā |
| ICS grupa | 13.030.30 37.040.30 |