Saturation Concentration in Air: 239 g/m3 (20 °C)

Purity (GC): ≥ 99.8 %

Evaporation residue: ≤ 0.0002 %

Water: ≤ 0.005 %

Color: ≤ 10 Hazen

Acidity: ≤ 0.0002 meq/g

Alkalinity: ≤ 0.0002 meq/g

Fluorescence (as quinine at 254 nm): ≤ 1.0 ppb

Fluorescence (as quinine at 365 nm): ≤ 1.0 ppb

Transmission (at 205nm): ≥ 30 %

Transmission (at 215 nm): ≥ 65 %

Transmission (at 220 nm): ≥ 80 %

Transmission (at 225 nm): ≥ 85 %

Transmission (at 235 nm): ≥ 90 %

Transmission (at 245 nm): ≥ 98 %

Transmission (from 255 nm): ≥ 99 %

Absorbance (at 205nm): ≤ 0.52

Absorbance (at 215 nm): ≤ 0.19

Absorbance (at 220 nm): ≤ 0.10

Absorbance (at 225 nm): ≤ 0.07

Absorbance (at 235 nm): ≤ 0.05

Absorbance (at 245 nm): ≤ 0.01

Absorbance (from 255 nm): ≤ 0.004

Meet the requirements of "Specific use spectroscopy" according ACS and Reag. Ph Eur