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10. PERSONAL PROTECTIVE EQUIPMENT Choosing the right kind of filter: Marking in the filter Color code in the label Range of effect of the filter Particulate respirators: P2 P3 Gas filters: A AX B E K A-P3 B-P3 E-P3 K-P3 white white brown brown grey yellow green white-brown white-grey white-yellow white-green Particles, e.g. construction, wood, plastic and metal dusts (content 0,5 volumetric % = 5 000 ppm). Particles (content less than 1,0 volumetric % = 10 000 ppm). Organic gases and fumes with a boiling point over 65 °C, e.g. solvents. Organic gases and fumes with a boiling point lower than 65 °C. Inorganic gases and fumes, e.g. chlorine, hydrogen sulfide and hydrocyanic acid. Acid gases and fumes, e.g. sulphur dioxide and chlorohydric acid. Ammonia and organic amines. e.g. spray painting e.g. heating and welding of painted surfaces e.g. welding of a surface painted with a paint containing chloric acid e.g. spraying with colors containing ammonia Combined filters: ABEK-P3 brown, grey, yellow, green, white Hot straightening of painted surfaces, if it is not known which gases will be produced in heating process. 47


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