EUROLAB laboratory provides testing and compliance service within the scope of NIOSH 7906 standard. This method updates NIOSH 7906 [7] by providing full method accuracy information and specifies the use of an impregnated filter rather than a treated cellulose pad.
The procedure in accordance with ISO 21438-3 [6] replaces NIOSH 7903 [8] for the determination of particulate fluorides and gaseous HF in workplace air samples.
The advantages of this method are that it can allow collection of the respirable fraction of particulate fluorides through the prefilter (housed in an optional respirable sampler) and provide lower detection and quantification for gaseous HF.
Sampling is performed at normal flow rates for individual sampling pumps of 1-2 liters per minute. The alkali-impregnated filter is used for the collection of gaseous HF, while it is for the collection of particulate fluorides.
Analysis of sample extracts is performed by ion chromatography (IC) after ultrasonic extraction of fluoride from each filter using basic (high pH) aqueous buffer solutions.
EUROLAB assists manufacturers with NIOSH 7906 test compliance. Our test experts, with their professional working mission and principles, provide you, our manufacturers and suppliers, the best service and controlled testing process in our laboratories. Thanks to these services, businesses receive more effective, high-performance and quality testing services and provide safe, fast and uninterrupted service to their customers.
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