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Whatman Filter Paper Grade No 40
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Jual Whatman Filter Paper Grade No 40



Spesifikasi Whatman Filter Paper Grade No 40

Alat Laboratorium Umum

Grade 40

ParameterGrade 40 Ashless Filter Paper for Pollution Analysis, 150 mm circle (100 pcs)
GradeGrade 40 
FormatCircles 
TypeAshless 
Typical Particle Retention in Liquid18 µm 
Nominal Thickness210 µm
Typical water flow rate225 ml/min 
Nominal Basis Weight95 g/m²
Nominal Air Flow Rate21 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. Gravimetric analysis for numerous components in cements, clays, iron, and steel products. As a primary filter for separating solid matter from aqueous extracts in general soil analysis. Quantitative determination of sediments in milk and as a pure analytical grade clean-up filter for solutions prior to AA spectrometry. Also used as a high-purity filter in the collection of trace elements and radionuclides from the atmosphere. 
DimensionsØ 150 mm 

 

1440-012Grade 40 Ashless Filter Paper for Pollution Analysis, 12.7 mm circle (400 pcs)Ø 12.7 mm
1440-032Grade 40 Ashless Filter Paper for Pollution Analysis, 32 mm circle (100 pcs)Ø 32 mm
1440-042Grade 40 Ashless Filter Paper for Pollution Analysis, 42.5 mm circle (100 pcs)Ø 42.5 mm
1440-047Grade 40 Ashless Filter Paper for Pollution Analysis, 47 mm circle (100 pcs)Ø 47 mm
1440-055Grade 40 Ashless Filter Paper for Pollution Analysis, 55 mm circle (100 pcs)Ø 55 mm
1440-070Grade 40 Ashless Filter Paper for Pollution Analysis, 70 mm circle (100 pcs)Ø 70 mm
1440-090Grade 40 Ashless Filter Paper for Pollution Analysis, 90 mm circle (100 pcs)Ø 90 mm
1440-110Grade 40 Ashless Filter Paper for Pollution Analysis, 110 mm circle (100 pcs)Ø 110 mm
1440-125Grade 40 Ashless Filter Paper for Pollution Analysis, 125 mm circle (100 pcs)Ø 125 mm
1440-150Grade 40 Ashless Filter Paper for Pollution Analysis, 150 mm circle (100 pcs)Ø 150 mm
1440-185Grade 40 Ashless Filter Paper for Pollution Analysis, 185 mm circle (100 pcs)Ø 185 mm
1440-240Grade 40 Ashless Filter Paper for Pollution Analysis, 240 mm circle (100 pcs)Ø 240 mm
1440-320Grade 40 Ashless Filter Paper for Pollution Analysis, 320 mm circle (100 pcs)Ø 320 mm
1440-329Grade 40 Ashless Filter Paper for Pollution Analysis, 30 mm circle (100 pcs)Ø 30 mm
1440-6168Grade 40 Ashless Filter Paper for Pollution Analysis, 450 mm circle (100 pcs)Ø 450 mm
1440-917Grade 40 Ashless Filter Paper for Pollution Analysis, 460 × 570 mm sheet (100 pcs)460 x 570 mm

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