空气采样滤纸 EPM2000

空气采样滤纸 EPM2000，玻璃微纤维滤纸，Air Sampling Filters/Quartz Filters空气采样滤纸EPM2000，由100%高纯硼硅复制成，可用于微量污染的详细化学分析。背景噪音低。为量空气采样机特别是PM-10空气采样器收集颗粒物和气溶胶样品而设计。空气采样滤纸 EPM2000

品名	规格	包装
石英滤膜	直径：47mm，圆片	100张/包
石英滤膜	8×10英寸，方片	100张/包

Air Sampling Filters - EPM2000
EPM 2000 has been developed especially for use in high volume PM-10 air sampling equipment that collects atmospheric particulates and aerosols. It is manufactured from 100% pure borosilicate glass of special purity enabling detailed chemical analysis of trace pollutants to take place with the minimum of interference or background.

Whatman EPM 2000 was selected by the EPA to be the standard filter for use in the nationwide network of HiVol air samplers. Sheets are individually numbered to facilitate identification.

Quartz Filters – QM-A
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.

PM 2.5 Air Monitoring Membranes - Please refer to the section on PM2.5

Typical Properties - Binder-Free Glass Microfiber Grades
Grade	Description	Particle Retention in Liquid (µm)	Air Flow (s/100 mL/in²)	Typical Thickness (µm)	Basis Weight (g/m²)
QM-A	Quartz	2.2*	6.4	450	85
EPM 2000	Pure Borosilicate Glass	2.0*	4.7	450	85

*Particle Retention Rating at 98% efficiency