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Methods of testing water used in industry -- Silica: reactive, total and suspended
Methods of testing water used in industry -- Soluble phosphate and organophosphorus compounds
Methods of testing water used in industry -- Reactive aluminium: spectrophotometric method (catechol violet)
Methods of testing water used in industry -- Fluoride: spectrophotometric method (alizarin fluorine blue)
Methods of testing water used in industry -- Alkalinity, acidity, pH value and carbon dioxide
Methods of testing water used in industry -- Anionic, cationic and non-ionic detergents and oil
Methods of testing water used in industry -- Cyclohexylamine: spectrophotometric method
Methods of testing water used in industry -- Morpholine: spectrophotometric method
Methods of testing water used in industry -- Long-chain fatty amines: spectrophotometric method
Methods of testing water used in industry -- Odour
Methods of testing water used in industry -- Nickel, zinc, chromates and total chromium and manganese
Methods of testing water used in industry -- Suspended solids: gravimetric method (after filtration)
Methods of testing water used in industry -- Dissolved solids: gravimetric method (after evaporation)
Methods of testing water used in industry -- Sodium
Methods of testing water used in industry -- Potassium: flame photometric method
Methods of testing water used in industry -- Lithium: flame photometric method
Methods of testing water used in industry -- Dichromate value (chemical oxygen demand), non-volatile organic carbon, tannins and chlorine
Methods of testing water used in industry -- Arsenic, lead and sulphide
Methods of testing water used in industry -- Free EDTA, total salts of EDTA, polyacrylate and polymethacrylate
Methods of testing water used in industry -- Dissolved oxygen, hydrazine and sulphite
Methods of testing water used in industry -- Chloride and sulphate
Methods of testing water used in industry -- Nitrite, nitrate and ammonia (free, saline and albuminoid)
Steel wire for prestressed concrete
Steel wire for prestressed concrete. Plain hard drawn steel wire
Fuses for alternating current circuits above 660 volts