Physical-chemical index Items unit standards standards First grade Qualified Moisture % d14.0 d14.0 d14.0 Partical size % e99.8 e99.5 e99.0 Speckle /cm2 d0.4 d1.2 d2.0 Acidity Milliliter of 0.1 mol/NaOH doing starch and consuming of 100grams of neutralization is counted d12.0 d18.0 d25.0