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WHA1851025

Whatman® QM-A quartz filters

Circles, 25 mm 100/pk

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Synonym(s):
Z741027, glass fiber filters, quartz fiber filters
NACRES:
NB.24

material

circles
quartz membrane

sterility

non-sterile

packaging

pack of 100

manufacturer/tradename

Whatman 1851-025
Whatman Article No. 28418504 (US reference)
Whatman Article No. 28418537 (US reference)

diam.

25 mm

pore size

2.2 μm

suitability

suitable for (air sampling in acidic gases, stacks, flues and aerosols)

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This Item
WHA1851865WHA1851050WHA1851150
vibrant-m

WHA1851025

Whatman® QM-A quartz filters

vibrant-m

WHA1851865

Whatman® QM-A quartz filters

vibrant-m

WHA1851050

Whatman® QM-A quartz filters

vibrant-m

WHA1851150

Whatman® QM-A quartz filters

pore size

2.2 μm

pore size

2.2 μm

pore size

2.2 μm

pore size

2.2 μm

diam.

25 mm

diam.

-

diam.

50 mm

diam.

150 mm

manufacturer/tradename

Whatman 1851-025, Whatman Article No. 28418537 (US reference), Whatman Article No. 28418504 (US reference)

manufacturer/tradename

Whatman 1851-865, Whatman Article No. 28418554 (US reference)

manufacturer/tradename

Whatman 1851-050, Whatman Article No. 28418543 (US reference)

manufacturer/tradename

Whatman 1851-150, Whatman Article No. 28418552 (US reference)

packaging

pack of 100

packaging

pack of 25

packaging

pack of 100

packaging

pack of 100

sterility

non-sterile

sterility

non-sterile

sterility

non-sterile

sterility

non-sterile

General description

High-purity quartz (SiO2) microfiber filters are used for air sampling in acidic gases, stacks, flues and aerosols, particularly at high temperatures up to 500°C and in PM-10 testing. Because of the low level of alkaline earth metals, ′artifact′ products of sulfates and nitrates (from SO2 and NO2) are virtually eliminated. QM-A, sequentially numbered according to EPA standards, is suitable for most applications.

  • Grade: QM-A
  • Description: Quartz
  • Particle Retention in Liquid (μm): 2.2
  • Air Flow (s/100 mL/in²): 6.4
  • Typical Thickness (μm): 450
  • Basis Weight (g/m²): 85

Other Notes

Field of Use : For internal research use only. Products are not intended for diagnostic use or resale.

Legal Information

Whatman is a registered trademark of Cytiva

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