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lime spec
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TECHNICAL SPECIFICATIONS FOR HYDRATED LIMEThe hydrated lime shall be a refined hydrate that has a small median particle size, good flow properties, high surface area, free of sand, and high total & available Ca(OH)2, free of lumps or other foreign matter which might interfere with the operation of the chemical feed facilities. Hydrated lime shall meet the following industry standards: AWWA standard B202-02 Certified to NSF standard 60 Certified to ASTM standards C977-03, C1097-06a, C207-06 (type N only), and C911-06
The delivered hydrated lime shall meet the following chemical and physical requirements:Property Range
Ca(OH)2 -Total 98.0% or greater
Ca(OH)2 -Available 96% or greater
C02 0.5% or less
CaCO3 2% or less
Free Moisture 0.7% or less
CaSO4 0.1% or less
Sulfur -Equivalent 240 ppm or less
Crystalline Silica 0.1% or less
Si02 0.5% or less
A1203 0.2% or less
Fe203 0.06% or less
MgO 0.4% or less
P205 100 ppm or less
MnO 25 ppm or less
Water Insoluble Material 3% or less
Specific Gravity 2.34
Dry Brightness, G.E 92.0
Median Particle Size-Sedigraph 2 micron
pH 12.4
-100 Mesh (150 m) 100.0%
-200 Mesh (75 m) 99.0%
-325 Mesh (45 m) 94.0%
Apparent Dry Bulk Density -Loose 22 lbs./ft3
Apparent Dry Bulk Density- Packed 35 lbs/ft3