SDS reference guide
SDS 1: Straight AN
SDS 2: NPK, NP and NK containing 70-80% AN
SDS 3: CAN and non-hazardous N and NS
SDS 4: NPK, NP and NK containing <70% AN
SDS 5: AS
SDS 6: Urea
SDS 7: NPK, NP and NK not containing AN
P, K and PK containing <10% superphosphate
SDS 9: P, K and PK containing >10% superphosphate
