Glass Fiber, Ashless Cellulose, & Carbon Impregnated Filter Paper by Air Samplers, Air Sampling Systems, Air Pollution Sampling Instrumentation, Air Flow Calibrators, Air Flow Calibration Services, ANSI N13.1-1999, Annular Kinetic Impactors, Continuous Emissions Monitoring Systems (CEMS), Particulate Sampling Systems, PUF, Polyurethane Foam Samplers, Radio iodine Sampling Systems, Shrouded Probe, Stack Sampling Systems, Silver Impregnated Zeolite Cartridges, TEDA Impregnated Carbon Cartridges

Glass Fiber, Ashless Cellulose, & Carbon Impregnated Filter Paper [Page34] shipping weight: 2 LB

Glass Fiber Filter Media

Ashless Cellulose Filter Paper
Cellulose fiber filter paper such as the Whatman 41 ,is commonly used in quantitative analytical techniques such as gravimetric analysis.E.G.:To convert precipitate to a stable weighing form,a chemist may wish to ignite the filter paper containing collected precipitate in a pre-weighed crucible, thereby removing the filter paper with minimal and uniform residual “ash ”.Cellulose paper is also commonly used for smears or swipes.Cellulose paper is not recommended with pumps that can ’t overcome large pressure drops (e.g.battery operated centrifugal type)or,where required,to maintain a constant flow rate over the entire sampling period.

Carbon Impregnated Filter Media
Carbon impregnated cotton fiber filter paper,type FPAIC ,is found in applications where the determination of an airborne Iodine species are required.

FPACI-XX
Carbon impregnated cotton fiber filter media contains 50-55%Carbon by weight. The paper is available in all standard die sizes and is generally used to qualita- tively determine the presence of Iodine in a sampling environment.The paper resists most dilute acids (not suitable for warm alkaline solutions).

FP1441-XXX, Whatman, Grade 41: 20-25µm
The fastest ashless filter paper,recommended for analytical procedures involving coarse particles or gelatinous precipitates (i.e.,iron or aluminum-hydroxides).Also used in quantitative air pollution analysis. Cellulose paper is also commonly used for smears or swipes.

TEFLON-GSKT-XX, Teflon Support Gaskets:
Teflon Support Gaskets may be placed above and below the filter paper disc creating a protective barrier between the occasional sharp edges of filter paper holder support screens and retaining rings.The inner &outer diameters of the Teflon rings are punched to a specifically tight tolerance to minimize any flow disturbance and to maximize filter collection media face exposure.Punched Teflon thickness is 0.020. 10 Gaskets/Package

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