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Dimension -( +/-2cm) 30x30x12 cm , unit weight -( +/-3%) 5 kg, ec -< 0.7 (testing method 1:1.5) Ph -5.2 to 6.8, water holding capacity 600 to 700% Palletised 21 mt(4200 blocks approx) Unpalletised 26mt(5200 blocks approx)