TFH-01/47

PTFE Filter/TFH membrane

New construction resolves many of the problems associated with the demanding usage environment for PM sampling filters.

Combines the excellent collection ability of a PTFE filter with a breathable reinforcing layer of non-woven fabric.
Reduces absorbency and conductivity and also prevents post- collection dispersal of samples.
Ensures superior release performance of the PM after collection (effective in micro-chemical analysis of composition).
Allows smaller filter unit weights than with the standard glass fiber paper used in automatic PM measurement devices (β-ray absorption method). This has improved detection sensitivity by approximately five times compared to previous HORIBA units.
Strengthens chemical resistance to acids, alkalis, and organic solvents.
Decreases filter weight and also allows accurate weight measurement of low-concentration samples.
Greatly lowers the chemical background, eliminating interference and allowing chemical analysis of composition (water-soluble components, organic compounds, metal components, etc). Patent pending

Item	Unit	TFH-01	TFH-47
Filter materials	—	PTFE filter+non-woven fabric (PE+PET)
Pore size	µm	1	1
Thickness	µm	140	140
Flowrate	L/min/cm²	80	80
Bubble point	Kg/cm²	Unavailable	Unavailable
Heat resistance	°C	135	135
Width	mm	40	—
Length	m (1 roll)	21	—
Diam.	mm	—	47
Mass	g/m²	14	14
Collection rate	%	99.97	99.97
Pressure loss	Pa	150	150
Tensile strength	N/25mm	>10	>10
Shape	—	Roll	Circular