The highest allowable concentration of cyanide in surface water and indoor air

China's industrial enterprise design hygiene standards stipulate the highest allowable concentration of cyanide in surface water and indoor air.

The maximum allowable concentration of cyanide in surface water is less than 0.05 mg / liter of domestic water; less than 0.5 mg / liter of industrial sewer discharge; less than 1 mg / liter of cyanide-containing sewage into the tailings dam. The maximum allowable concentration of cyanide in the air is not more than 0.3 mg/ m3 .

Tear-off Cap For Infusion Bottle

The material for plastic cap uses the polypropylene resin (PP), where the polypropylene is free of toxin, odor, with sound heat‐resistance and tensile strength complying the national standard; meanwhile the coloring material uses the innoxious, high‐temperature resistant, colorfast and glossy master batch to ensure product quality.

There are multiple sizes and types for the caps for liquid‐infusion glass bottles. We are sincere to produce the easy‐to‐pull aluminum cap for ∅30, ∅32 infusion bottle, aluminum‐plastic composite cap and aluminum‐plastic pull‐tab cap for ∅26, ∅28, ∅30 and ∅32 liquid‐infusion glass bottle, aluminum‐plastic composite cap for ∅36 infusion glass bottle (f or blood product only), aluminum‐plastic easy‐to‐pull cap for ∅32 infusion bottle (3‐piece) and other types; we are capable of producing on the demand of customers.

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YANGZHONG HONGYUN BOTTLE CAPS MAKING FACTORY , https://www.hongyunyz.com