PVP PVP PVP K30; PVP K90; PVP K15; PVP K17 PVPPolyvinylpyrrolidonePVP K30PVP K90PVP K15PVP K17PVP pharma grade (PVP K)SpecificationK-valueSolid, %pHNVP, %PVP K30 Powder27-33 95 min.3-7 ... 0.01 max.PVP K90 Powder88-98 95 min.5-90.01 max PVP technical grade (PVP-K)SpecificationK-valueSolid, %pHNVP, %PVP K30 Powder27-33 ... K17 Powder15-19 95 min.3-7 0.1 maxPVP K90 Powder88-98 95 min.5-9 0.1 max PVP K25