A MAL code number (Målteknisk Arbejdshygiejnisk Luftbehov — Targeted Occupational Hygiene Air Needs) provides information on how to protect against the health risks that may be associated with working with a chemical product, e.g. during graphic printing. The code number must appear on the product's packaging or on an attached user manual, and it is the responsibility of the supplier to calculate the code number.
The code number consists of two numbers describing how dangerous the product is, for example 1-2.
The number before the dash indicates the safety precautions that should be taken to minimise inhalation of the volatile vapour content of the product. Volatile vapours are substances that can evaporate into the air and subsequently be inhaled. The higher the number, the more volatile the substances in the product are.
The number after the dash indicates the safety measures that must be taken to minimise the health hazards that occur if the product comes into contact with the skin, eyes or respiratory system or if the product is consumed. The higher the number, the more harmful the product is.
A number of products in Denmark are required to have a code number, including painting goods, wood preservatives, glues and sealants.
Products used for painting, printing and gluing.