Specification: - Form: 5kg block - Compression Ratio: Over 75 Liters / Block. - Impurities/sand: 3% Max. - Moisture: 15-20% Max. - PH: 5.8 to 6.5 - Block Size: 30 x 30 x 15 cm. - Fiber length: Less than 2cm. - Weight : 5kg (+/- 3%). - Electric Conductivity (E.C): EC < 1 max ds/m - Expansion up to 60-70L
