This standard specifies carriers with a particle diameter of 22.4 mm or less used in water treatment to prevent microorganisms from forming on the carrier surface.
KS M 1425-2004 history
2013KS M 1425-2013 Testing method for particle size distribution of palletized media by sieving
0000 KS M 1425-2004(2010)
2004KS M 1425-2004 Testing method for particle size distribution of palletized media by sieving