Guarantee analysis
Assay (by GC) ≥99.9%
Identification Passes test
Density at 20/4 0.779～0.783
Colour（APHA） ≤10APHA
Water (KF) ≤0.008%
Acidity ≤0.0002meq/g
Alkalinity ≤0.0002meq/g
Evaporation residue ≤0.0001%
Gradient grade ( at 210 nm ) ≤1.0mAU
Gradient grade ( at 254 nm ) ≤0.5mAU
Fluorecence（as quinine at 254 nm ） ≤1.0ng/mL
Fluorecence（as quinine at 365 nm ） ≤0.5ng/mL
Transmission ( at 190 nm ) ≥27%
Transmission ( at 193 nm ) ≥65%
Transmission ( at 195 nm ) ≥85%
Transmission ( at 200 nm ) ≥96%
Transmission ( at 215 nm ) ≥97%
Transmission ( 230 nm-400 nm ) ≥99%
Microfiltered product(0.2um)and bottled under nitrogen atmosphere