纯度（GC-FID）    ≥99.9%
一致性(红外检测)  Conforms
蒸发残渣              ≤3.0mg/L
水分                    ≤100ppm
酸度                    ≤0.0002meq/g
碱度                    ≤0.0002meq/g
自由氯                 ≤10ppm
透过率（以1cm水为参比）
-at 240nm            ≥70%
-at 245nm            ≥90%
-from 260nm        ≥99%
微量有机残留物 Trace Organic Residues
FID-Sensitive Impurities (as 2-Octanol) Single Impurity Peak                  ≤5ng/ml

ECD-Sensitive Impurities (as Heptachlor Epoxide) Single Impurity Peak  ≤10pg/ml