品牌:坛墨质检
产品规格:4L
起订:1
发货:2天内
| ITEMS | STANDARDS |
| Assay (by GC-FID ) | Min 99. 98 % |
| Color | Max 10 APHA |
| Clear colorless liquid free of suspended matter | Passes Test |
| Formaldehyde | Max 0.001% |
| Acetaldehyde | Max 0.001% |
| Acetone | Max 0.001% |
| Extraction and concentration suitability | Max 10 ng/L |
| Fluorescence at emission maximum for Impurities(as quinine sulphate) | Max 1 ppb |
| 254 nm | Max 1 ppb |
| GC-ECD(single peak, as Heptachlor Epoxide) | Max 5 ppt |
| GC-FID(single peak, as 2-octanol) | Max 5 ppb |
| IR | Passes Test |
| pH(25℃) | for reporting purposes only |
| The Refractive Index(25℃) | 1.3260 to 1.3300 |
| LC gradient elution suitability at 230 nm | Max 5 mAu |
| LC gradient elution suitability at 254 nm | Passes Test |
| Residue after Evaporation | Max 1 ppm |
| Titrable Acid | Max 0.0003 meq/g |
| Titrable base | Max 0.0002 meq/g |
| Solubility in Water | Passes Test |
| Substances Darkened by sulfuric acid | Passes Test |
| Substances Reducing Permanganate | Passes Test |
| Water-(by KF coulometry) | Max 0.02% |
| 205 nm | Max 1.000 AU |
| 210 nm | Max 0.800 AU |
| 214 nm | Max 0.400 AU |
| 220 nm | Max 0.200 AU |
| 225 nm | Max 0.160 AU |
| 230 nm | Max 0.120 AU |
| 240 nm | Max 0.050 AU |
| 250 nm | Max 0.020 AU |
| 254 nm | Max 0.010 AU |
| 260 nm | Max 0.005 AU |
| 280 nm | Max 0.005 AU |
| 300 nm | Max 0.005 AU |
| 400 nm | Max 0.005 AU |
