procurement of silicagel (blue indicating type) to the mettur thermal power station-i e-tender for the supply of silicagel (blue indicating type) to the mettur thermal power station-i - 500kg as per annexure enclosed , silicagel (blue indicating type), size : 8mm to 10mm as per is 3401/ 1992 (reaffirmed 2003) in 25kg hdpe bags technical specification:- 1) description : silicagel blue 2) type : indicating type 3) sio2 : 97-99% 4) ph : 6-7 5) bulk density : 0.600 to 0.700gm/cc 6) loss of drying : <5-6% 7) loss of attrition : 2.5% 8) absorption capacity at 100% humidity : 25-40% 9) particle size (mesh) : 8-10mm 10) friability : 99.5 11) chloride (as nacl) : 0.4 ppm 12) sulphates (na2so4) : 0.5 ppm 13) ammonium (nh3) : nil