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Box 2.8. The Column Model<br />
In case of doubt, the immediate higher level of classification should be systematically selected.<br />
Risks:<br />
level/type<br />
Very high<br />
High<br />
Medium<br />
Low<br />
Negligible<br />
Acute health<br />
hazards<br />
(single<br />
affection)<br />
R26, R27,<br />
R28, R32<br />
R23, R24,<br />
R25, R29,<br />
R31, R32,<br />
R42, R43<br />
R20, R21,<br />
R22, R34,<br />
R41, R64,<br />
R36, R37,<br />
R38, R65,<br />
R66, R67<br />
Chronic<br />
health<br />
hazards<br />
(repeated<br />
affection)<br />
R45, R49<br />
R33, R40,<br />
R60, R61,<br />
R68<br />
R63<br />
Others (no<br />
R-Phrase<br />
associate,<br />
but<br />
hazardous<br />
Harmless substances by<br />
experience (e.g. sugar,<br />
water, paraffin and similar)<br />
Environmental<br />
Hazards<br />
R50, R51, R53,<br />
R54, R55, R56,<br />
R57, R58, R59<br />
R52, R53 R10<br />
Fire and<br />
explosion<br />
hazards<br />
R2, R3,R12,<br />
R17<br />
R1, R4, R5,<br />
R6, R7, R8,<br />
R9, R11,<br />
R15, R16,<br />
R18, R19,<br />
R30, R44<br />
Hardly<br />
flammable<br />
substances/<br />
preparations<br />
(55-100°C)<br />
Inflammable<br />
or very<br />
hardly<br />
flammable<br />
substances/<br />
preparations<br />
(100°C)<br />
Exposure potential<br />
• Gases;<br />
• Liquids which evaporate at<br />
room temperature;<br />
• Dust producing solids;<br />
• Aerosols.<br />
Liquids which evaporate<br />
between 30 and 50°C<br />
Liquids which evaporate<br />
between 50 and 150°C<br />
Liquids which evaporate at<br />
more than 150°C<br />
Liquids which evaporate at<br />
more than 200°C<br />
Hazards caused by<br />
procedure<br />
• Open processing;<br />
• Possibility of direct skin<br />
contact;<br />
• Application on large area.<br />
Closed processing but<br />
exposure possibilities e.g.<br />
when filling sampling or<br />
cleaning<br />
• Tightly closed equipment;<br />
• Closed equipment, with<br />
exhaust facilities at points of<br />
emission.<br />
Source: Based on the classification provided by Berufsgenossenschaftliches Institut für Arbeitssicherheit (BIA) www.hvbg.de/bia<br />
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