U.S. will conduct safety audits on various chemicals

Drying equipment

The US Environmental Protection Agency recently announced that the agency will conduct safety audits for 18 industrial chemicals in 2013 and 2014. Among these substances are 3 flame retardants, 4 fragrance compounds , and 5 chlorinated hydrocarbons.

It is understood that the EPA's chemical approval process will be used to determine whether a particular substance is to be controlled. The 18 kinds of chemicals to be audited announced this time are only a small part of the chemicals that the department decided to evaluate safety risks. If the EPA discovers that a chemical poses a significant risk of harm to the human body or the environment, the EPA will implement controls or take other regulatory actions in accordance with the Toxic Substances Control Act. However, if the substance is found to be safe in its current use after the audit, the EPA may not do it and it will not take other actions.

The 18 chemicals are specifically: 1-bromopropane; 1,1-dichloroethane; 1,2-dichloroethane; 1,2-dichloropropane; trans-1,2-dichloroethylene; ,1,2-trichloroethane; p-t-octylphenol; di(2-ethylhexyl)-3,4,5,6-tetrabromophthalic acid (TBPH); bis(2-ethyl) Hexyl)-3,4,5,6-tetrabromobenzoate; tris(2-chloroethyl)phosphate; 6-bromoindole-3-carbaldehyde; 2,4,6-tri-tert-butyl Phenol; benzene sulfonyl hydrazide; octamethylcyclotetrasiloxane; and 4 fragrance compounds.

Twin Shaft Concrete Mixers

The mixing arm drives the mixing blade to force the mixing of the material in the tank body, the mixing effect is very strong, and the mixing quality is better.There are two steel bearing protection circles between the mixing arm and shaft.to prevent coarse sand.In the steel circles there is a airway. When certain pressure of air goes though it,a pressure protection mat will be formed between the interface of the mixing arm and shaft to prevent water and mud from close to shaft head and prolong the service life of the mixer.



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