Type IV, lyophilized powder, ≥100 units/mg solid

Type VI, buffered aqueous glycerol solution, 2-5 units/mg protein (biuret), 10-20 units/mL

Type IV, essentially salt-free, lyophilized powder, ≥10 units/mg solid

Type V, essentially salt-free, lyophilized powder, ≥5 units/mg solid

Type H-1, sulfatase ≥10,000 units/g solid

Type H-2, aqueous solution, ≥2,000 units/mL

Type VIII, lyophilized powder, 20-40 units/mg solid

≥30 U/mg