Whatman QM-B Quartz Microfiber Filters

Description

QM-B filters are similar to GE’s standard QM-A quartz fiber filters, which are recommended more commonly for air testing applications. By comparison, QM-B is approximately twice as heavy, twice as thick, and offers slower flow rates.

Because of these characteristics, QM-B can be used in air monitoring applications requiring increased strength or durability.

The Whatman range of high-purity quartz filter options also includes Grade QM-A and Grade QM-H filters, which can withstand temperatures up to 800°C and 900°C, respectively. Each filter grade has unique strengths for air monitoring applications.

Parameter	Quartz Air Sampling Filter, Grade QM-B, 42 mm circle (50 pcs)
Grade :	QMB
Diameter :	42.5 mm
Nominal Air Flow Rate :	12 s/100ml/in2
Nominal Basis Weight :	170 g/m²
Max recommended temperature :	800 °C
Material :	Quartz
Pack size :	50 pieces