CHEMICALS
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Proficiency testing schemes for Petroleum and Petrochemical Products: Chemicals |
Product | No. of labs | Provisional scope |
Acetic Acid | 30 | Acetaldehyde, Colour Pt/Co, Chloride, Density @20oC, Formic acid, Freezing point, Heavy Metals as Pb, Iron, Non Volatile Matter, Purity (calculated from freezing point), Purity (calculated from titration), Sulphate and Water. |
Acetone | 25 | ASTM D329 profile; Acidity, Aldehydes, Alkalinity, Appearance, Anorganic Chloride, Colour Pt-Co, Density @20oC, Distillation range, Miscibility (water), Nonvolatile Matter, Purity on dry basis, Diacetonalcohol, Mesityloxide, Permanganate Time Test, Refractive Index and Water. |
Benzene | 40 | ASTM D2359 profile: Acid wash colour, Acidity, Appearance, Bromine Index, Colour Pt/Co, (relative) Density @20oC, Distillation range (IBP, MBP and dry point), Total Chlorine, Total Nitrogen, Solidification point, Toluene, Non Aromatics Hydrocarbons and Purity. |
Toluene | 25 | ASTM D841 profile: Acid wash colour, Appearance, Copper corrosion, Colour Pt/Co, Density @20oC, Distillation (IBP, MBP and Dry point), Non Aromatics Hydrocarbons, Styrene and Purity. |
n-Butylacrylate | 25 | Acidity, Colour Pt-Co, Density @20°C, MEHQ, Water, Purity (by GLC and on dry basis), n-Butanol, n-Butylacetate, n-Butylmetacrylate, n-Butyl-propionate, Di-n-butylether, 2-Ethylhexylacrylate and Isobutylacrylate. |
Fuel- / Bio-ethanol | 45 | Acidity, Appearance, Copper, Density @ 20oC,Electrical conductivity at 25oC Inorganic Chloride, Involatile material content, Nitrogen, Phosphorus, Sulfate, Total sulfur, Water (coulometric), Water (titrimetric), Ethanol, Acetaldehyde, Acetal (1,1-diethoxyethane), Acetone, Benzene, Cyclohexane, Crotonaldehyde, DEG (di-ethylene glycol), Dioxane, Ethylacetate, Iso Butanol, Iso Propanol, MEG (mono-ethylene glycol), Methanol, 3-Methyl-1-Butanol, 2-Methyl-1-Butanol, n-Amylalcohol, n-Butanol, n-Propanol, sec-Amylalcohol, sec-Butanol, tert-Amylalcohol and tert-Butanol |
Ethanol (REN, Food Grade) | 45 | Density @20oC, Water, Purity at dry basis, Strength (in %V/V and %M/M), UV Transmittance. |
Isopropyl alcohol | 25 | Acidity, Anorganic Chloride, Appearance, Apparent Density @20°C, Density @20°C, Colour Pt-Co, Distillation range, Nonvolatile Matter (NVM), Water, Purity and Purity on dry basis, Ethanol, nPropylbenzene, other alcohols and Methyl Ethyl Ketone (MEK). |
MEG-fg | 60 | Acidity, Ash, Chloride, Colour Pt/Co, Di ethylene glycol (DEG), Density @20°C, Distillation @ 760 mmHg (IBP, DP and range), Free aldehydes, Iron, Purity on dry basis, Specific gravity 20/20, UV transmittance (220, 250, 275 and 350 nm) and Water. |
Methanol | 80 | IMPCA specs: Acidity, Appearance, Carbonisable substances (Pt-Co scale),Chloride, Colour Pt/Co, Distillation (IBP, DP and range), Density @20oC & Specific gravity 20/20, Hydrocarbons, Non volatile matter, Permanganate time test @15oC, Sulphur, Total iron,Water Miscibility, Water (titrimetric and coulometric),Purity (on dry basis), Ethanol and Trimethylamine. |
Methanol | 40 | UV (300nm, 268.5nm, 250nm and 220nm) |
MTBE | 25 | Colour Pt/Co, Density @15oC, Refractive Index 20oC, Water, Purity as received, Purity on dry basis and some GC- impurities: Diisobutylenes, Methanol, Tert-butanol, C4-, C5- and other Hydrocarbons. |
ETBE | 25 | Density @15 oC, Sulfur, Water, Nitrogen, Purity as received, Purity on dry basis and some GC- impurities: Diisobutylenes, Ethanol, Tert-butanol, MTBE, C4-, C5- and other Hydrocarbons. |
Propylene glycol | 20 | Acidity, Chloride, Colour Pt-Co, Distillation range, Iron, GC purity, DPG, Density @ 20oC, Specific gravity 20/20 and Water. |
Styrene | 35 | Purity on dry basis, Colour Pt/Co, Aldehydes, Peroxides, Sulphur, Polymers, Inhibitor and Impurities: Benzene, Ethylbenzene, m+p-Xylenes, Cumene, o-Xylene, n-Propylbenzene, m+p-Ethyltoluenes, alpha-Methylstyrene, Phenylacetylene, Benzaldehyde and Non aromatics. |
o-/p-Xylenes | 30 | ASTM D5136 profile on p-Xylene: Purity, Non aromatics, Toluene, Ethylbenzene, m-Xylene, o-Xylene, Appearance, Colour Pt/Co, Distillation (IBP, DP and range), Organic Chloride and Sulphur. On o-Xylene: Purity, Non Aromatics, Benzene, Toluene, p-Xylene, m-Xylene, Ethylbenzene, Styrene, Cumene, Ethyltoluenes (sum), n-Propylbenzene and C9 and heavier aromatics. |
Mixed-Xylenes | 35 | Benzene, Toluene, Ethylbenzene, p-Xylene, m-Xylene, o-Xylene, sum p-& m-Xylene, Cumene, sum of C9+ aromatics and sum of non aromatics. |
VAM | 25 | Acidity, Purity, Methylacetate, Ethylacetate, Acetone, Acetaldehyde, Benzene, Inhibitor, Density @20°C, Distillation (ibp, mbp, fbp, range) and Water. |
MMA | 15 | Appearance, colour Pt-Co, Density @20°C, water, acidity, inhibitor and purity (impurities methanol, acetone, methylacrylate, methylisobutyrate and ethylmethacrylate). |