Supplies for Chemical Industry

The choice depends on the type of substance. Filter A protects against organic vapours, B against inorganic gases, E against acid gases and K against ammonia. ABEK codes combine several protections. The number indicates the capacity class, for example 1, 2 or 3. Filters must comply with the EN 14387 standard and should be replaced according to the manufacturer's instructions and the safety data sheet of the substance.

Dust filters are classified P1, P2 and P3 according to filtration efficiency. P3 retains finer particles than P2 and is intended for more hazardous dusts. P2 is fine for less demanding dusts. The filter must be chosen based on the safety data sheet of the substance and matched to the correct mask. Replace it when breathing becomes harder.

Non-woven coveralls such as Tyvek and Category III coveralls protect the body against particles and limited liquid splashes. For contact with liquid substances you need a coverall of a type suited to the substance, to be checked on the datasheet. Always wear the coverall with suitable gloves and face protection, and check the seams before entering the work area.

Nitrile is the most common choice for oils, greases and many light solvents. Neoprene resists acids and bases well, while latex is not recommended for people who are allergic to natural latex. For chemical resistance, the EN ISO 374 standard is what counts, as it gives the permeation times for each substance. Check the glove datasheet and change the gloves immediately if you notice damage or direct contact.

The containment tray should be sized for the largest container it has to hold, as set out by local regulations. Portable and flexible trays are for drums, IBCs and emergency response. The material should be chosen according to the liquid: polyethylene resists many products, but not all. Check compatibility in the safety data sheet and keep the container closed and clearly marked.

The transfer gun lets you move liquids out of a drum or container without pouring them by hand. Before use, check that the material is compatible with the liquid. Earth the receiving container to avoid a build-up of static charge, wear eye and face protection and work in a ventilated area. Any spill must be absorbed immediately with a suitable material.

Non-sparking tools are made of materials that do not spark, such as bronze or copper alloys, so they produce no sparks when struck or dragged. They are useful where there are flammable vapours, such as in storage areas or chemical plants. They do not, however, replace safety procedures. Before working, assess the risk with the supervisor, check that the area is clean and use the tool only for its intended purpose.