4) exposure concentration value How is the exposure concentration Measured determined? Estimated. Please indicate how: Don't know. If measured, please specify the number of samples and how the exposure concentration given below was derived. Air exposure concentration and unit: B9) Risk Management Measures (RMMs) are currently in place to control exposure in Group 2? Measures that seek to Answer 1. Reduce the number of workers exposed (fewer, rotate, Rotation of workers etc.) Substitution of workers by automatization/ robotic operators please specify: 2. Reduce the General ventilation Yes No concentration at Local exhaust ventilation (LEV) Fume hoods the workplace Extraction or grinding tables Fume extractor guns spot extraction) Low-vacuum spot extraction High-vacuum spot extraction Mobile extraction and filter units Other, please specify: Modification of working processes Yes No (e.g. use of secondary shield gas If yes, please specify: containing reducing agents in gas metal arc welding) may reduce Cr(VI) exposure) Substitution of working processes Yes No (For some materials, processes If yes, please specify: generating less fumes and/or less Cr(IV) may be available) Substitution of materials Yes No (e.g. use of electrodes generating If yes, please specify: less and/or less Cr(IV)) Detect unusual exposures Yes No If yes, please specify: Cleaning of base metal surfaces of Yes No Not relevant any coating or paint 3. Reduce worker Information of workers on working Yes No exposure: with hazardous materials If yes, please specify: Personal protection equipment Fresh-air supplying masks (PPE) to reduce inhalation Simple filter masks exposure to workers Filter with battery-powered (turbo-unit) please specify: 4. Other measures, please specify Group 3
4) exposure concentration value How is the exposure concentration determined? Measured Estimated. Please indicate how: Don't know. If measured, please specify the number of samples and how the exposure concentration given below was derived. Air exposure concentration and unit: B9) Risk Management Measures (RMMs) are currently in place to control exposure in Group 2? Measures that seek to Answer 1. Reduce the number of workers exposed (fewer, rotate, etc.) Rotation of workers Substitution of workers by automatization/ robotic operators please specify: 2. Reduce the concentration at the workplace General ventilation Yes No Local exhaust ventilation (LEV) Fume hoods Extraction or grinding tables Fume extractor guns spot extraction) Low-vacuum spot extraction High-vacuum spot extraction Mobile extraction and filter units Other, please specify: Modification of working processes (e.g. use of secondary shield gas containing reducing agents in gas metal arc welding) may reduce Cr(VI) exposure) Yes No If yes, please specify: Substitution of working processes (For some materials, processes generating less fumes and/or less Cr(IV) may be available) Yes No If yes, please specify: Substitution of materials (e.g. use of electrodes generating less and/or less Cr(IV)) Yes No If yes, please specify: Detect unusual exposures Yes No If yes, please specify: Cleaning of base metal surfaces of any coating or paint Yes No Not relevant 3. Reduce worker exposure: Information of workers on working with hazardous materials Yes No If yes, please specify: Personal protection equipment (PPE) to reduce inhalation exposure to workers Fresh-air supplying masks Simple filter masks Filter with battery-powered (turbo-unit) please specify: 4. Other measures, please specify Group 3
co-crvi-web-2010-en.docx