Item Quality Criteria Premium 1st grade On-spec 1 Appearance Colourless, transparent, no mechanical admixture Colourless, transparent, no mechanical admixture Colourless, transparent, no mechanica…
Item Quality Criteria Premium 1st grade On-spec 1 Appearance Colourless, transparent, no mechanical admixture Colourless, transparent, no mechanical admixture Colourless, transparent, no mechanical admixture 2 Colour(Pt-Co) No. before heated addition of chlorhydric acid, heated < = 5 < = 20 < = 15 -- < = 40 < = 1 3 Density(20)g/cm3 1.1131-1.1136 1.1125- 1.1140 1.1120-1.1150 4 Water, % (m/m) < = 0.05 < = 0.2 -- 5 Boiling range (0.0.10133MPa), Initial point Dry point IBP-DP > = 196 < = 2 > = 195 < = 200 > = 193 < = 204 6 Acidity (calculated As sulphuric acid), % (m/m) 0.001 < = 0.004 < =0.008 7 Aldehyde (calculated as formaldehyde), % (m/m) 0.0008 -- -- 8 Iron (calculated as Fe2+), % (m/m) < = 0.00001 < = 0.0005 -- 9 Ash, % (m/m) < = 0.002 < = 0.002 --- 10 DEG and TEG, %(m/m) < = 0.1 < = 1.0 ---- 11 Chlorine (calculated as chlorine ion), %(m/m) < = 0.00005 < = 0.001 < = 0.002 12 * Ultraviolet transmittance % 220nm 275nm 350nm > =70 > = 90 > = 88 ---- ---- ---- --- --- ---
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