ISO/TC 47
| Projekta Nr. | ISO 2515:1973 |
|---|---|
| Nosaukums | <p>Specifies a titrimetric method consisting in distillation of the ammonia after displacement by an alkaline solution; absorption in an excess of standard volumetric sulphuric acid solution and back-titration with standard volumetric sodium hydroxide solution in the presence of an indicator. The absorption of the ammonia may also be carried out in an excess of boric acid solution. The titration, in this case, is carried out directly with a standard volumetric sulphuric acid solution.</p> |
| Reģistrācijas numurs (WIID) | 7449 |
| Darbības sfēra | <p>Specifies a titrimetric method consisting in distillation of the ammonia after displacement by an alkaline solution; absorption in an excess of standard volumetric sulphuric acid solution and back-titration with standard volumetric sodium hydroxide solution in the presence of an indicator. The absorption of the ammonia may also be carried out in an excess of boric acid solution. The titration, in this case, is carried out directly with a standard volumetric sulphuric acid solution.</p> |
| Statuss | Atcelts |
| ICS grupa | 67.220.20 71.060.50 |