Filter

Grade

1. Puriss (4)
2. Puriss. p.a. (5)

Assay

1. 70% (1)
2. 95-97% (4)
3. 95.0-97.0% (4)
4. 99% (10)
5. 99.0-100.5% (calc. to the dried substance) (5)
6. 99.5-100.5% (calc. to the dried substance) (6)
7. ≥25% NH3 basis (3)
8. ≥37% (5)
9. ≥65% (3)
10. ≥85% (5)
11. ≥98% (5)
12. ≥98.5% (4)
13. ≥99% (12)
14. ≥99.0% (1)
15. ≥99.5% (2)
16. ≥99.8% (4)

Quality

1. ACS reagent, reag. ISO, reag. Ph. Eur. (5)
2. Meets analytical specification of Ph. Eur., BP (4)

Color

1. APHA: ≤10 (5)

Tootemark

1. MM (5)
2. SIAL (5)
3. Sigma Aldrich (3)