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Whatman Quantitative Filter Papers Grade 44
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Last Updated
17 Jan 2020
Country Origin
Indonesia
Minimum Order
1 Produk

Specification of

Whatman Quantitative Filter Papers Grade 44

ParameterGrade 44 Ashless Filter Paper, Thin, 240 mm circle (100 pcs)
GradeGrade 44 
FormatCircles 
TypeAshless 
Typical Particle Retention in Liquid13 µm 
Nominal Thickness176 µm
Typical water flow rate211 ml/min 
Nominal Basis Weight80 g/m²
Nominal Air Flow Rate56 s/100 mL/in² 
Nominal Ash Content30.007% 
MaterialHigh-quality cotton linters 
Alpha Cellulose Content Min.≥98% 
Typical Trace Element LevelsAluminium 2.5 µg/g Antimony <0.5 µg/g Arsenic <0.5 µg/g Barium <0.5 µg/g Boron <1 µg/g Calcium 8.3 µg/g Chromium 1.5 µg/g Copper 2 µg/g Iron 12 µg/g Lead <0.5 µg/g Magnesium 4 µg/g Manganese <0.5 µg/g Mercury <0.5 µg/g Potassium 2.3 µg/g Silicon 6.2 µg/g Sodium 16.8 µg/g Zinc 64.5 µg/g 
ApplicationDesigned for gravimetric analysis and the preparation of samples for instrumental analysis. 
DimensionsØ 240 mm 

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