What are lab reagents? Types, grades and storage
A plain guide to what counts as a lab reagent, the grades they are sold in and how to keep them in good condition.
Guides
Lab water grades explained: deionised, distilled and reagent grade water
Lab water is graded by how few impurities it contains. The two standards most labs use are ISO 3696 and ASTM D1193, and conductivity is the quickest way to compare...
Mixing Water vs sterile water: what's the difference?
Both are purified water in a sealed vial. The difference is a preservative, and it changes how long a vial can be used once opened.