Tender for Supply of coal and sand filter media for rapid gravity sand filters of water systems

Sharing tender

Supply Of Coal And Sand Filter Media For Rapid Gravity Sand Filters Of Water Systems , BITUMINOUS COAL, 1.7 MM, UC LESS THAN 1.4, BULK DENSITY OF 700 -800KG/M3, SIZE 1.6 TO 1.9 MM, SPECIFIC GRAVITY 1.2 TO 1.5, UNIFORM COFFICIENT LESS THAN 1.4, HARDNESS 2 TO 3 MHOS, MOISTURE SHOULD NOT EXCEED 3%, ASH CONTENT SHOULD NOT EXCEED 15%, VOLATILE MATTER 15-30%, APPEARANCE: BLACK UNIFORM CLEAN GRANULES, CARBON: 80%(MIN.) , NATURAL SAND, SIEVE BSS 12 (1.4 MM) And BSS22 (0.71MM)- OVERSIZE AND UNDER SIZE NOT MORE THAN 5%, QUALITY:F FREE OF SHALE, CLAY AND ORGANIC MATTER,FFECTIVE SIZE 0.8MM TO 0.9MM, UNIFORM COEFFICIENT Less Than 1.5, IGNITION LOSS SHOULD NOT EXCEED 0.7% BY WEIGHT, SOLUBLE FRACTION IN HCL SHOULD NOT EXCEED 5% BY WEIGHT, SPECIFIC GRAVITY 2.55 TO 2.65, BULK DENSITY 1400 TO 1500 KG/M3, SILICA CONTENT GREATER THAN 90%, WEARING LOSS SHOULD NOT EXCEED 3%, HARDNESS MHOS SCALE 7