How to Increase the Fire Resistance of Materials? Flame retardants are used to improve the fire resistance of materials. Flame retardants are substances added to materials of organic origin to increase their fire-resistant properties. They slow down the combustion and ignition of the material. The action of flame retardants is based on: 1. melting...

Classification of dangerous goods by hazard level (ADR hazard class) in Russia is based on GOST 19433-88 "Dangerous goods. Classification and labeling," introduced in 1990. Classes of Dangerous Goods: Class Subclass Name 1 explosive materials 1.1 explosives with a mass explosion hazard 1.2 explosives with no mass explosion...

Mineral Fertilizers Everyone knows that various fertilizers, both mineral and organic, are introduced into soil to increase its fertility. Today the market offers a huge variety of products for mineral soil enrichment. Science continually studies and invents new and new combinations of mineral components, such as potassium, phosphorus, ammonia,...