Water test kits, soil test kits, children's chemistry sets, etc. when containing hazardous materials
Most chemical kits contain a variety of substances — with only a few of them being hazardous materials for transportation purposes. Corrosives, oxidizers, and organic peroxides are the most common classes of hazardous materials found in chemistry kits. The material safety data sheet (MSDS) of each individual chemical in the kit must be examined to know if it is a hazardous material. Section 14 of the MSDS should identify if a chemical/substance is a regulated hazardous materials for transportation purposes.