Guarantee analysis
Assay (by GC) ≥99.9 %
Identification Passes test
Density at 20/4 0.791～0.792
Colour (APHA) ≤10 APHA
Water (KF) ≤0.03%
Acidity ≤0.0002meq/g
Alkalinity ≤0.0002meq/g
Evaporation residue ≤0.0005%
Insoluble matter in H2O Passes test
Gradient grade ( at 254 nm ) ≤2.0mAU
Fluorescence(as quinine at 254 nm) ≤1.0ng/mL
Transmission ( at 205 nm ) ≥10%
Transmission ( at 220 nm ) ≥56%
Transmission ( at 230 nm ) ≥71%
Transmission ( at 240 nm ) ≥79%
Transmission ( at 250 nm ) ≥95%
Transmission ( at 280 nm) ≥98%
Transmission ( at 400 nm ) ≥98%
Microfiltered product (0.2um) and bottled under nitrogen atmosphere