Filtry ilościowe bezpopiołowe Grade 43

Filtry Whatman Grade 43 stosowane są w analizach w chemii nieorganicznej i niektórych metodach analizy instrumentalnej. Niska zawartość popiołu sprawia, że filtry klasy 43 nadają się również do analiz grawimetrycznych, które obejmują spalanie próbek.
Whatman Grade 43 filters support inorganic analysis and other forms of instrumental analyses. The low ash content also makes Grade 43 appropriate for gravimetric analyses requiring sample combustion.

• Very low ash content (0.007% ash concentration maximum)
• Intermediate particle retention rating of 16 µm
• Herzberg filtration speed of 155 s
• Particle collection between that of Grades 40 and 41

We offer other ashless grades to ensure that you have the appropriate particle retention rating for your needs. Hardened ashless grades are also available for analyses that use strong acid/alkali solutions.

Particle collection and inorganic analysis
Whatman Grade 43 can be ashed during gravimetric analysis without contributing substantially to the measured weight. These filters are also appropriate for:

• Inorganic analysis in the construction, mining, and steel industries
• Particle collection for air pollution monitoring for subsequent analysis by X-Ray fluorescence (XRF) techniques
• Soil analysis
• Foodstuffs filtration analysis
Grade Grade 43 
Type Ashless 
Typical Particle Retention in Liquid 16 µm 
Nominal Thickness 220 µm
Typical water flow rate 62 ml/min 
Nominal Basis Weight 95 g/m2
Nominal Air Flow Rate 11 s/100 mL/in
Nominal Ash Content 0.007% 
Material High-quality cotton linters 
Alpha Cellulose Content Min. 98% 
Typical Trace Element Levels Aluminium 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 
Application Designed for gravimetric analysis and the preparation of samples for instrumental analysis. For foodstuffs analysis. For soil analysis. For particle collection in air pollution monitoring for subsequent analysis by XRF techniques. For inorganic analysis in the construction; mining and steel industries. 
Product Product Name Dimensions
1443-090 Grade 43 Ashless Filter Paper for Inorganic Analysis; 90 mm circle (100 pcs) 90 mm
1443-110 Grade 43 Ashless Filter Paper for Inorganic Analysis; 110 mm circle (100 pcs) 110 mm
1443-125 Grade 43 Ashless Filter Paper for Inorganic Analysis; 125 mm circle (100 pcs) 125 mm
1443-150 Grade 43 Ashless Filter Paper for Inorganic Analysis; 150 mm circle (100 pcs) 150 mm
1443-185 Grade 43 Ashless Filter Paper for Inorganic Analysis; 185 mm circle (100 pcs) 185 mm