Total hardness test reagents
Katalog №BWZ6067-2016Hajmi6 bottles/setNarxi
Bu mahsulot hozircha mavjud emas.
Texnik xususiyatlari
| Shakli | Suyuq |
|---|---|
| Yaroqlilik muddati | 6 oy |
| Matritsa | Suv |
| Qadoq | Plastic/Brown glass bottle |
| Saqlash sharoiti | Xona haroratida, germetik va yorug‘likdan himoyalangan joyda saqlang. Ishlatishdan oldin (20±3) ℃ gacha keltirib, yaxshilab chayqating. Ochilgandan so‘ng darhol ishlating, ifloslanishdan saqlang. |
Qadoq hajmi
6 bottles/set, pH=10.0
Tarkibi va attestatsiya qiymatlari
| Modda | Attestatsiya qiymati | Noaniqlik (k=2) | CAS |
|---|---|---|---|
| Ammonium chloride ammonium hydroxide buffer solution | pH=10.0 | / | / |
| Sodium sulfide | 50g/L | / | 1313-84-4 |
| Hydroxyamine hydrochloride solution A | 1g | / | 5470-11-1 |
| Hydroxyamine hydrochloride solution B | / | / | |
| Eriochrome Black T | 0.50%(w/v) | / | 1787-61-7 |
| Ethylenediaminetetraacetic acid disodium salt titration solution standard substance | 0.01003mol/L | 0.3% | 139-33-3 |
| Ca | 10mmol/L | 1% | 7440-70-2 |