Chemical preparations for scientific purposes excluding starch liquefying chemicals; diagnostic reagents for scientific purposes including testing environmental and clinical samples for the presence of microorganisms, particularly cryptosporidium and giardia; antibodies or fragments of antibodies for scientific purposes including testing environmental and clinical samples for the presence of microorganisms, particularly cryptosporidium and giardia

Chemical preparations for scientific purposes; diagnostic reagents for scientific purposes including testing environmental and clinical samples for the presence of microorganisms, particularly cryptosporidium and giardia; antibodies or fragments of antibodies for scientific purposes including testing environmental and clinical samples for the presence of microorganisms, particularly cryptosporidium and giardia

Timber stain