dear sir, We are a serious and professional dealer. Now our company is looking for Natural Rubber Latex. Property I.S.O SPECIFICATION HA LA Total Solids content,% 61.50 min 61.50 min Dry Rubber content,% 60.00 min 60.00 min Non Rubber Solids,% 2.0 max 2.0 max Ammonia content,% 0.60min 0.29max Mechanical stability time.sec 650 min 650 min Volatile fatty acid Number(VFA) 0.20max 0.20max KOH number 1.0 max 1.0 max PH Value (at 25deg.C) Magnesium content(on solid) Odor of Latex Color of film All test performed according to the relevant I.S.O.2004-1979E specification Show More