A type “B” bag is constructed from insulating fabric with a breakdown voltage of less than 6 kV. This provision prevents the risk of energetic sparks and propagating brush discharges which can ignite dust-air mixtures and flammable gases and solvent vapors. Type “B” bags may be used in the presence of the combustible dusts with MIE greater than 3mJ, but only in the absence of flammable vapors of gases. Type “B” bags are sometimes called antistatic bags, but it should be noted that type “B” bags only provide limited protection against static electricity and they do not provide any mechanism for dissipating static charge.
Used safely to transport dry, combustible powders (MIE > 3 mJ)
There are to be no flammable solvents or gases present around the bag
DO NOT USE to transport flammable products (MIE < 3 mJ)