This certified Grade 2 filter paper is tested according to the procedure detailed in ASTM E 2187-09, Sections 9.3.1 and 9.3.2. The paper meets both the conditioned (26.1 +/- 0.5 g, SD < 0.3 g) and dried (24.7 +/- 0.5 g, SD < 0.3 g) weight requirements. These cellulose filters are used in qualitative analytical techniques to determine and identify materials. • Each lot is guaranteed to meet the ASTM E 2187-09 specifications
• Simplifies testing process by removing lot suitability testing
• Just condition and use

Specifications
• Application: Used for monitoring specific contaminants in the atmosphere and in soil testing.
• Grade: Grade 2
• Grade Type: Standard
• Material: Cellulose
• Nominal Ash Content†: 0.06%
• Nominal air flow rate: 20 s/100 ml/in
• Nominal basis weight: 97 g/m
• Nominal thickness: 190 µm
• Typical Particle Retention in Liquid††: 8 µm
• Typical Trace Element Levels: Aluminum 3.6 µg/g Antimony <0.5 µg/g Arsenic <0.5 µg/g Barium <0.5 µg/g Boron <1 µg/g Calcium 27.5 µg/g Chromium 1 µg/g Copper 0.9 µg/g Iron 13.7 µg/g Lead <0.5 µg/g Magnesium 21 µg/g Manganese <0.5 µg/g Mercury <0.5 µg/g Potassium 6.2 µg/g Silicon 8.8 µg/g Sodium 32.3 µg/g Zinc 58.3 µg/g
• Typical water flow rate†††: 38 ml/min

†Ash is determined by ignition of the cellulose filter at 900 DEG C in air.
††Particle retention rating at 98% efficiency.
†††For 9 cm diameter
††††U.S. Sales Only
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