Ahlstrom’s micro-quartz filters are useful for testing hot “stack” gases as the quartz fibers
can withstand temperatures up to 900°C. In addition micro-quartz is used when the highest
purity media is required. With excellent filtration properties and minimal traces of metals
and minerals quartz fibers are dimensionally stable and can be used in the analysis of
acidic gases (with the exception of HF). Other sizes available for special order. T293 also
available for special order.