failure or refusal to comply, as with a law, regulation, or term of a contract. Origin of noncompliance. 1680-1690. First recorded in 1680-90; non- + compliance.
The main cause of chemical burns is from contact with strong acids or bases. The strength of acids and bases is defined by the pH scale, which ranges from 1-14. A very strong acid has a pH of 1 and may cause a severe burn. A very strong base has a pH of 14 and may also cause a severe burn. A substance with a pH of 7 is considered neutral and does not burn. Chemical burns from acids or bases are also referred to as caustic burns.
Several methods are well known for the disinfection of drinking water. The used substances are chlorine gas, hypochlorite solution, hydrogen. peroxide, ozone, UV-rays. Ozone is used for the disinfection of swimming pools and not so often for. drinking water. The main disadvantage is the high toxicity.