Headline: Certified Fire Safety Dry Chemical Powder Supplies for Indian Industry & Infrastructure

What is the difference between ABC and BC dry chemical powder?

A: ABC powder uses monoammonium phosphate as the active agent and is effective on Class A, B, and C fires; BC powder uses potassium bicarbonate, is more effective on Class B fires, and is less corrosive to electrical equipment and metals.

Is BIS IS:4308 certification mandatory for dry chemical powder in India?

A: Yes — BIS IS:4308 certification is mandatorily required for dry chemical powder used in fire extinguishers sold or used in India; suppliers without a valid BIS license are non-compliant.

What is the shelf life of dry chemical powder?

A: BIS IS:4308 certified dry chemical powder has a minimum shelf life of 5 years when stored in sealed, moisture-barrier packaging in dry conditions below 40 deg C.

Can I source bulk powder for extinguisher refilling stations?

A: Yes — Trade4Asia-verified suppliers offer bulk supply in 25kg moisture-barrier bags and 1MT bulk bags specifically designed for extinguisher refilling operations, with lot-specific COAs.

What tests should I check on the COA when buying dry chemical powder?

A: Check MAP% (for ABC), KHCO3% (for BC), moisture content (<0.2%), bulk density, particle size D50, flow time, and caking resistance test results — all should match BIS IS:4308 specified limits.