department of sustainable natural resources soil survey standard test method particle size analysis abbreviated name psa test number p7 test method type b version number 3 record of amendments version ...
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...Department of sustainable natural resources soil survey standard test method particle size analysis abbreviated name psa number p type b version record amendments date reason for nature amendment this does not include a minute reading the graph is extended to intercept mm line scope laboratory procedure determination distribution principle consists an assembly ultimate particles discrete various shapes and sizes object group these into separate ranges so determine relative proportion by weight each range employs sieving sedimentation water dispersant suspension technique based on application stokes law periodic measurement density special apparatus hydrometer astm h preferred uniform set cylinders with internal depth capacity l see note sieves interval timer end over shaker rotating at rpm reagents sodium hexametaphosphate calgon dissolve g in ml warm deionised when cool add sufficient carbonate bring ph or dilute sample preparation carry out according receipt storage sa weigh whole pa...