Rasm mavjud emas
Portable spectrophotometric determination kit for hexavalent chromium
Katalog №BWS3076Hajmi100 times/boxNarxi
Bu mahsulot hozircha mavjud emas.
Texnik xususiyatlari
| Shakli | Suyuq |
|---|---|
| Yaroqlilik muddati | 12 oy |
| Matritsa | Suv |
| Qadoq | Quti |
| Saqlash sharoiti | 2–8 ℃ haroratda, germetik va yorug‘likdan himoyalangan joyda saqlang. Ishlatishdan oldin (20±3) ℃ gacha keltirib, yaxshilab chayqating. Ochilgandan so‘ng darhol ishlating, ifloslanishdan saqlang. |
Qadoq hajmi
100 times/box, 50%(V:V)
Tarkibi va attestatsiya qiymatlari
| Modda | Attestatsiya qiymati | Noaniqlik (k=2) | CAS |
|---|---|---|---|
| Sulfuric acid solution | 50%(V:V) | / | 7664-93-9 |
| Phosphoric acid solution | 50%(V:V) | / | 7664-38-2 |
| Diphenylcarbazide | 1g | / | 140-22-7 |
| Acetone | 50mL | / | 67-64-1 |
| Hexavalent chromium standard storage solution | 100μg/mL | 3% | 7440-47-3 |
| Sodium hydroxide solution | 1mol/L | / | 1310-73-2 |
| Sulfuric acid solution | c(1/2H2SO4)=1mol/L | / | 7664-93-9 |
| Residual chlorine test paper | 0~20mg/L | / | / |
| Wide pH test paper | pH 1~14 | / | / |
| Precision pH test paper | pH 8.2~10 | / | / |