Sodium hydroxide 1.0 N in aqueous solution, VWR Chemicals BDH Sodium Hydroxide is an odorless liquid chemical. It has a Health Hazard NFPA Rating of 3, a Fire Hazard NFPA Rating of 0, and a Reactivity NFPA Rating of 0. This chemical complies with the APHA standard, AOAC 936.16 standard, and ASTM E200-91 standard. It has a shelf life of 2 years. This product is packaged and sold in a 1 L poly bottle.