General Test Procedure Limit Test Chloride Purpose This procedure is applicable to all incoming Raw materials. Apparatus 50ml Nessler Cylinder Reagents 0.1M Silver Nitrate solution Dilute Nitric Acid (10%w/w, dilute 106 ml of nitric acid to 1000ml with water) Sodium chloride A R grade Chloride Standard Solution (25ppm Cl): Dissolve 82.4 mg of sodium chloride … Read more
General Test Procedure Clarity of Solution Purpose This procedure is applicable to all incoming Raw materials. Apparatus Test tubes Reagents Hydrazine Sulphate Hexamine Purified water Procedure Into separate matched, flat-bottomed test tubes, 15 to 25 mm in internal diameter and of colorless, transparent, neutral glass, place sufficient quantity of the solution being examined … Read more
General Test Procedure Non Volatile Matter and Residue on Evaporation Purpose This procedure is applicable to all incoming Raw materials. Apparatus Calibrated weighing balance water bath Evaporating dish Reagents None Procedure Place clean and dry evaporating dish in an oven at 105°C for 30 minutes. Remove it and keep it in desiccators for … Read more
General Test Procedure Distillation Range Purpose This procedure is applicable to all incoming Raw materials, In-process and Finished products. The distillation range of a liquid is the temperature interval, corrected to a pressure of 101.3 k Pawithin which the liquid, or a specified fraction of the liquid. Apparatus Distillation Range of 200ml capacity Condenser … Read more
General Test Procedure Weight per ML and Specific Gravity Purpose This procedure is applicable to all incoming Raw materials, In-process and Finished products. Apparatus Pycnometer specific gravity bottle Calibrated glass thermometer Balance Reagents None. Procedure Procedure for Volumetric Flask Take the wt. of empty Pycnometer. Fill the Pycnometer with liquid and maintain at 25°C … Read more
General Test Procedure Melting Range and Freezing Point Purpose This procedure is applicable to all incoming Raw materials, In-process and Finished products. Apparatus Melting point apparatus Thin-walled capillary glass tubes of hard glass, closed at one end pestle mortar Beakers Test tubes Water bath Calibrated glass thermometer Balance Reagents None Procedure Procedure for … Read more
General Test Procedure Sulphated ash purpose This procedure is applicable to all incoming Raw materials. Apparatus Muffle furnace Balance Silica or Platinum or porcelain or quartz crucibles Graduated pipette1 ml Hot plate Desiccator Nickel tongue Reagents Sulphuric acid Procedure Keep crucible in muffle furnace at temperature 800° ± 25°C for 30 minutes. Take out … Read more
General Test Procedure Water Content Purpose This procedure is applicable to all incoming Raw materials, In-process and Finished products. Apparatus Karl Fischer Apparatus Reagents Karl Fisher Reagent Methanol (Dried) Disodium Tartrate Procedure Unless otherwise specified, weigh/measure accurately a suitable quantity of sample containing about … Read more
General Test Procedure pH Purpose This procedure is applicable to all incoming Raw materials, In-process and Finished products. Apparatus pH Meter calibrated thermometer Calibrated Balance Reagents Potassium chloride Procedure Operate the pH meter as per the Standard Operating Procedure. Check whether pH meter is calibrated or … Read more
General Test Procedure Loss on drying Purpose This procedure is applicable to all incoming Raw materials, In-process and Finished products. Apparatus Hot air oven/vacuum oven calibrated thermometer Calibrated Balance Reagents None Procedure Weigh a glass stoppered, shallow weighing bottle that has been dried under the same conditions to be … Read more