Food and Drug Regulations

C.04.586 The clear supernatant liquid obtained from NPH insulin shall contain not more than 0.4 International Units of insulin per cubic centimetre when the potency of the insulin preparation is 40 units per cubic centimetre, not more than 0.6 International Units of insulin per cubic centimetre when the potency of the insulin preparation is 80 units per cubic centimetre and not more than 0.7 International Units of insulin per cubic centimetre when the potency of the insulin preparation is 100 units per cubic centimetre, as determined by an acceptable method.