Institute for Medical Research and Occupational Health
Abstract
Opisano je nekoliko konstrukcija pribora za uzimanje uzoraka atmosfere izrađenih iz domaćeg materijala. Upotrijebljene su tri varijante membranske pumpe: a) mali kompresor za akvarije s elektromagnetom, na male otpore, brzine strujanja do 2,5 l/min i kontinuirani rad, b) pumpa vlastite izrade s elektromotorom, za veće otpore i brzine strujanja do 12 l/min i c) pumpa vlastite izrade s malim elektromotorom na pogon akumulatorom, za radna mjesta gdje nema priključka na električnu mrežu.A few different constructions of home assembled air sampling equipment are described. Three modifications of diaphragm type pumps are used in these constructions: (1) a small compressor for aeration of aquaria, actuated by an electromagnet, for low resistance, flow rates up to 2.5 lpm, and continuous work, (2) a home made pump driven by an electromotor, for higher resistance and flow rates up to 12 lpm, and (3) a home \u27made pump driven by an electromotor supplied from a 6 V storage battery for collection of air samples where the external electric sources are not available
