品牌 | HACH/哈希 |
---|
Trust the original Hach test kit! Simple drop-count titration measures hardness as CaCO3 (1 gpg = 17.1 mg/L). Utilizes drop count titration with a range of 1-30 gpg. Contains approximay 100 tests.
- Utilizes drop count titration - a simple, economical titration method