R38 Irritating to skin R40 Limited evidence of a carcinogenic effect R48 Danger of serious damage to health by prolonged exposure WHO MAY BE EXPOSED AND HOW? Consider different types of workers (e.g. lab. workers, cleaners, waste handlers) and routes of exposure (inhalation, ingestion, direct absorption or injection) Members of staff, students and official visitors authorised to us the BTR laboratories. EXPOSURE POTENTIAL LOW MEDIUM HIGH Quantity used < 1g 1g - 100g >100g Physical characteristics affecting Dense solid/ Non-volatile Liquid Dusty solid/ Volatile Liquid Gas/Aerosol/ Highly volatile liquid exposure Primary containment Closed system Partially closed system Open system (excluding fume cupboard, etc) Frequency of use Occasional Frequent Continuous OVERALL EXPOSURE POTENTIAL: Negligible / Low Medium High METHODS OF PREVENTION OR CONTROL OF EXPOSURE Access control e.g.: a) Is the work area (e.g. laboratory) restricted to competent personnel? Members of staff, students and official visitors authorised to use the BTR laboratories b) Any other access controls? n/a Engineering controls a) Will total containment be used to prevent exposure? n/a b) Will fume cupboard, or safety cabinet or other local exhaust ventilation be used to partially contain substance? yes
R38 Irritating to skin R40 Limited evidence of a carcinogenic effect R48 Danger of serious damage to health by prolonged exposure WHO MAY BE EXPOSED AND HOW? Consider different types of workers (e.g. lab. workers, cleaners, waste handlers) and routes of exposure (inhalation, ingestion, direct absorption or injection) Members of staff, students and official visitors authorised to us the BTR laboratories. EXPOSURE POTENTIAL LOW MEDIUM HIGH Quantity used Physical characteristics affecting exposure Primary containment (excluding fume cupboard, etc) Frequency of use < 1g Dense solid/ Non-volatile Liquid Closed system Occasional 1g - 100g Dusty solid/ Volatile Liquid Partially closed system Frequent >100g Gas/Aerosol/ Highly volatile liquid Open system Continuous OVERALL EXPOSURE POTENTIAL: Negligible / Low Medium High METHODS OF PREVENTION OR CONTROL OF EXPOSURE Access control e.g.: a) Is the work area (e.g. laboratory) restricted to competent personnel? Members of staff, students and official visitors authorised to use the BTR laboratories b) Any other access controls? n/a Engineering controls a) Will total containment be used to prevent exposure? n/a b) Will fume cupboard, or safety cabinet or other local exhaust ventilation be used to partially contain substance? yes
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