Chemical preparations containing enzymes for scientific purposes, namely, for agricultural, DNA analysis, bio-security, forensic, animal husbandry or livestock purposes; chemical preparations for scientific purposes, namely, for agricultural, DNA analysis, bio-security, forensic, animal husbandry or livestock purposes; diagnostic preparations other than for medical, veterinary, animal husbandry or livestock purposes; chemical reagents for non-medical, animal husbandry or livestock purposes; e...