… up in the form of kits, other than those of heading 30.06; certified reference materials. …
Explanatory notes
… industrial laboratories, in hospitals, in industry, in the field or, in some cases, in the home. Reagents of this … or laboratory reagents, such as litmus, pH or pole-finding papers or pre-coated immuno-assay plates. Reagents … a reagent of this heading. Crude sera and other semi-finished substances which require further treatment before …