功能

• A set of individual holders for personal exposure assessment of working environment dust.
• Respirable particles of PM4 (4 μm, 50% cut) can be collected at a suction flow rate of 2.5 L/min. Holder NWPS-254 is a granulator that meets the requirements of Article 2, Paragraph 2 of the Working Environment Measurement Standards.
• Together with the separately sold suction pump MP-W5P, it can be d as a personal sampling device for working environment measurement and as a sampler for personal exposure concentration measurement of dust and manganese welding fume.