Protective measures (GefStoffV §§ 8-11)
The results from the risk assessment will reveal the risk potential from hazardous substances that are processed, as well as the quantities used and the duration of contact. This information will be used to determine the protective measures that should be stipulated, whereby it applies that the less hazardous substance used, the fewer safety measures are required; the more hazardous substances are used, the higher the technical and organisational requirements and personal protective equipment must be used for the safety of the worker. The protection level concept abandoned with the revised form of the GefStoffV 2010, which provided increments of measures based on the actual risk, still offers a practicable, user-friendly aid for arranging suitable safety measures for dealing with hazardous substances:
Level 1 - low risk:
Minimum measures for low risk and exposure, e.g., repair work with a repair mortar labelled as an irritant. Minimise the risk through organisational measures, such as supplying and using simple protective clothing (e.g., protective gloves or dust mask).
Level 2 - moderate risk:
Applies to working with corrosive or highly flammable substances that are hazardous to health. Minimise the risk, if technically feasible, by choosing less hazardous products (substitution). If this cannot be done, use technical safety measures such as suction kit, blower, barrier. Personal protective gear is mandatory to wear. EMeasure to determine occupational exposure limit values (OELs). If OELs are exceeded, repeat the risk assessment and determine more effective measures.
Level 3- High risk:
Applies to handling toxic or carcinogenic substances. Minimise the risk through substitutions or closed systems. Measure and abide by occupational exposure limit values. Restrict access, seal toxins.
Stufe 4 - Very high risk:
Only applies to carcinogenic substances. Not relevant to floor/tile-laying practice.