ISO/TC 34/SC 3
| Project No. | ISO 6636-1:1986 |
|---|---|
| Title | <p>The method consists in ashing of a test portion in a muffle furnace at 525+25 C, treating the ash obtained with hydrochloric acid, neutralizing with ammonia solution and determing of the value using an ammonia/ammonium chloride electrolyte. Copper, tin, lead and cadmium do not interfere.</p> |
| Registration number (WIID) | 13054 |
| Scope | <p>The method consists in ashing of a test portion in a muffle furnace at 525+25 C, treating the ash obtained with hydrochloric acid, neutralizing with ammonia solution and determing of the value using an ammonia/ammonium chloride electrolyte. Copper, tin, lead and cadmium do not interfere.</p> |
| Status | Standarts spēkā |
| ICS group | 67.080.01 |