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Grade 2 Qualitative Filter Paper Standard Grade, circle, 185 mm 1002-185

GR 2 18 5CM 100/PK
Availability: 5 in stock
SKU: 1002-185
Manufacturer: Cytiva
Pack Size: 100

 

Grade 2 Qualitative Filter Paper Standard Grade, circle, 185 mm

This certified Grade 2 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.

  • Each lot is guaranteed to meet the ASTM E 2187-09 specifications
  • Simplifies testing process by removing lot suitability testing
  • Just condition and use
  • These cellulose filters are used in qualitative analytical techniques to determine and identify materials. Prepleated qualitative filters are also available, which give improved flow rate and increased loading capacity compared to equivalent flat filters.
Grade 2: 8 µm
Slightly more retentive than Grade 1 with a corresponding increase in filtration time (i.e., slightly slower filtration speed). More absorbent than Grade 1. In addition to general filtration in the 8 µm particle size range, the extra absorbency is utilized, for example, to hold soil nutrient in plant growth trials. Also used for monitoring specific contaminants in the atmosphere and in soil testing. Also available prepleated as Grade 2V.
 

Product specifications

Grade 2 Qualitative Filter Paper Standard Grade, circle, 185 mm

ApplicationUsed for monitoring specific contaminants in the atmosphere and in soil testing. 
Diameter185 mm
GradeGrade 2 
Grade TypeStandard 
MaterialCellulose 
Nominal Ash Content0.06% 
Nominal air flow rate20 s/100 ml/in² 
Nominal basis weight97 g/m²
Nominal thickness190 µm
Typical Particle Retention in Liquid8 µm 
Typical Trace Element LevelsAluminium 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 at 45 psi (3.1 bar)38 ml/min 
 

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