7592104 PM2.5 Air Monitoring Filters

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7592104

PM2.5 Air Monitoring Filters

7592104 PM2.5 Air Monitoring Filters

廠牌:WHATMAN
供應商:偉吉達企業有限公司|OMEGA代理商;OMEGA熱電偶接頭;
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Whatman™ 7592-104 PM 2.5 Air Monitoring PTFE Membrane Filter for EPA Method PM 2.5, Diameter: 4.62cm (Pack of 50)

General description

A high-purity, thin PTFE membrane in a sequentially numbered chemically resistant polypropylene support ring for PM 2.5 ambient air monitoring. Whatman PM 2.5 membranes have low tare mass for accurate gravimetric determinations. The thermally stable design eliminates curling, keeps the membrane flat, and makes the filter robot-friendly.

The PM 2.5 PTFE membranes are manufactured under clean room conditions. These chemically resistant, low chemical background filters permit sensitive, interference-free determinations. No glues or adhesives are used in making these 46.2 mm diameter products.

Any filter manufacturer or vendor who sells or offers to sell filters specifically identified for use with this PM 2.5 reference method shall certify that the required number of filters from each lot (0.1% or 10, whichever is greater) of filters offered for sale have been tested as specified for the following tests and meet 90% of each of the design and performance specifications:Loose, surface particle contamination. (drop test - weight loss stability)
Temperature Stability. (temperature - weight loss stability)

Any filter manufacturer or vendor who sells or offers to sell filters specifically identified for use with this PM 2.5 reference method shall certify that a minimum number of 50 filters from each lot of filters offered for sale have been tested as specified for the following tests and meet 90% of each of the design and performance specifications:


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