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The requirements the employees should meet in respiratory protection, are laid down in the form of attainment and test targets which can be found under the menu 'attainment and test targets'. The subject matter is based on these attainment and test targets. The requirements to be met by the employees who carry out work using protective respiratory equipment are determined to a large extent by the (health) risks at the place of work. Three risk classes have been created and these also indicate the levels at which an employee can take an SIR examination, following:
  • Respiratory Protection level A;
  • Respiratory Protection level B;
  • Respiratory Protection level C.
The employees working on level B and C, must be SIR certified by means of an examination.
 
Respiratory Protection level A
This level includes employees who occasionally work with dependent respiratory protection equipment. The following equipment can be used for activities at level A: dust masks, full-face masks with a dust filter or full-face masks with a carbon filter.
The SIR does not examine this level. This can be done by an instructor.
 
Respiratory Protection level B
This level includes employees who regularly work with dependent and independent respiratory protection equipment. The following equipment can be used for activities at level B: independent respiratory protection equipment. The SIR examines and certificies candidates for this level. The exam contains a written part and a practical.
 
Respiratory Protection level C
Independent respiratory protection equipment have to be used in possible combination with a gas suit when performing work at level C. This level includes people who:
  • work with gas suits inside or outside a confined space;
  • who work in enerted atmospheres.
The SIR examines and certifies candidates for this level. The exam contains a written part and a
practical.