Tenders Are Invited For Purchase Of Hard Coal in Kazakhstan

Work Detail

Ordinary Coals Of Size Class 0-300 Mm. Mass Fraction Of Pieces Smaller Than 6 Mm, No More Than 40%; Mass Fraction Of Pieces Larger Than 300 Mm -5% Ash Content In The Dry State Of Fuel Ad – No More Than 38%; The Total Moisture In The Operating Condition Of The Fuel Is No More Than 9%; Release Of Volatile Substances On Dry Basis Fuel Condition Vd – No More Than 33%; The Mass Fraction Of Total Sulfur In The Dry State Of The Fuel Is No More Than 3%; The Mass Fraction Of Chlorine On The Dry State Of The Fuel Is No More Than 0.4%; The Mass Fraction Of Arsenic In The Dry State Of The Fuel Is No More Than 0.01%; The Mass Fraction Of Phosphorus On The Dry State Of The Fuel Is Not Less Than 0.02%. Mass Fraction Of Nitrogen On The Dry State Of The Fuel, Nd, No More Than 0.70%; Mass Fraction Of Carbon In The Dry State Of The Fuel, Cd, Not Less Than 45%; Mass Fraction Of Iron Oxide In Ash, Fe2o3, No More Than 10%; Mass Fraction Of Aluminum Oxide In Ash, Al2o3, Not Less Than -25%; Mass Fraction Of Silicon Dioxide In Ash, Sio2, No More Than 60%; Mass Fraction Of Sulfur Trioxide In Ash, So3, No More Than 0.6%; Coal Radiation Hazard Class -1.; Effective Specific Activity Of Natural Radionuclides In Ash, Predicted Not More Than 370 Bq/Kg; Ignition Temperature - No More Than 370 Degrees Celsius; Self-Ignition Temperature – Not Less Than 538 Degrees Celsius; Oxidation Index, Ocr, Not Less Than 9%. The Group Of Coals In Terms Of Susceptibility To Oxidation And Spontaneous Combustion Is Not Less Than Group 3, Explosibility Criterion, Kt - No More Than 2, Group Explosion Hazard - No More Than 2; Dust Explosion Hazard Is No More Than Average. The Lowest Calorific Value Of Working Fuel Is Not Less Than 5000 (Kcal/Kg); The Shelf Life Of Coals Is No More Than 12 Months. To The Competitive The Application Must Provide A Test Report Confirming Compliance With The Above Technical Specifications, As Well As A Certificate Of Conformity With The Reports Tests And Radiological Tests, On The Basis Of Which A Certificate Of Conformity Was Issued. St Rk 1028-2017 At The Request Of The Customer, As Agreed By The Parties

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