... in oil drilling,having good water loss control capability,PAC product is a kind of effective wate 1.Specification ... of PAC ItemHHVLLVD.S.>0.9PH6.0-8.0Moisture,%<10Yield in ... lossAt 5.7g/l of PAC concentration,ml-<20-<25At 8.6g/l of PAC concentration,ml-<15-<15At 11 ... .4g/l os PAC concentration,ml-<10-<10YP valuesAt ...