Quantitative filter papers, ashless grades, grade 42, Whatman™
Supplier: Whatman products (Cytiva)
Certificates
About this item
These filter papers made from high quality cotton linters have the finest retention of all ashless filter paper grades. Grade 42 is designed for gravimetric analysis and sample preparation for instrumental analysis.
- Commonly used as a calcium carbonate filter
- Alpha cellulose content ≥98%
These filter papers are designed for retention of extremely small particles. Other typical precipitates for gravimetric analysis include barium sulfate and metastannic acid for use in glazes, coatings and pigments. The high purity of these filters also makes them suitable for processes that require ashing.
- Catalog No:
- 512-0654
- 512-0009
- WHAT1442-971
- 516-4301
- 512-0655
- 512-0627
- 512-0324
- 512-0593
- 512-0326
- 512-0325
- 512-0328
- 512-0327
- 512-0330
- 512-0329
- Grade:
- 42
- 42
- 42
- 42
- 42
- 42
- 42
- 42
- 42
- 42
- 42
- 42
- 42
- 42
- Weight:
- 100 g/m²
- 100 g/m²
- 100 g/m²
- 100 g/m²
- 100 g/m²
- 100 g/m²
- 100 g/m²
- 100 g/m²
- 100 g/m²
- 100 g/m²
- 100 g/m²
- 100 g/m²
- 100 g/m²
- 100 g/m²
- Thickness:
- 200 µm
- 200 µm
- 200 µm
- 200 µm
- 200 µm
- 200 µm
- 200 µm
- 200 µm
- 200 µm
- 200 µm
- 200 µm
- 200 µm
- 200 µm
- 200 µm
- Particle retention:
- 2,5 µm
- 2,5 µm
- 2,5 µm
- 2,5 µm
- 2,5 µm
- 2,5 µm
- 2,5 µm
- 2,5 µm
- 2,5 µm
- 2,5 µm
- 2,5 µm
- 2,5 µm
- 2,5 µm
- 2,5 µm
- Filtration speed:
- 1870 s (Herzberg)
- 1870 s (Herzberg)
- 1870 s (Herzberg)
- 1870 s (Herzberg)
- 1870 s (Herzberg)
- 1870 s (Herzberg)
- 1870 s (Herzberg)
- 1870 s (Herzberg)
- 1870 s (Herzberg)
- 1870 s (Herzberg)
- 1870 s (Herzberg)
- 1870 s (Herzberg)
- 1870 s (Herzberg)
- 1870 s (Herzberg)
- Ash content:
- 0,007%
- 0,007%
- 0,007%
- 0,007%
- 0,007%
- 0,007%
- 0,007%
- 0,007%
- 0,007%
- 0,007%
- 0,007%
- 0,007%
- 0,007%
- 0,007%
- Airflow rate:
- 96 s/100 ml/6,5 cm²
- 96 s/100 ml/6,5 cm²
- 96 s/100 ml/6,5 cm²
- 96 s/100 ml/6,5 cm²
- 96 s/100 ml/6,5 cm²
- 96 s/100 ml/6,5 cm²
- 96 s/100 ml/6,5 cm²
- 96 s/100 ml/6,5 cm²
- 96 s/100 ml/6,5 cm²
- 96 s/100 ml/6,5 cm²
- 96 s/100 ml/6,5 cm²
- 96 s/100 ml/6,5 cm²
- 96 s/100 ml/6,5 cm²
- 96 s/100 ml/6,5 cm²
Related Information
Product Information
- Catalog #Supplier #GradeSizePkAvailabilityPrice
- 516-43011442-0424242,5 mm1001 * 100 ST20,10 €: 1442-042: WHAT1442-042
Specifications
Grade42Environmentally PreferableWeight100 g/m²Thickness200 µmParticle retention2,5 µmFiltration speed1870 s (Herzberg)Ash content0,007%Airflow rate96 s/100 ml/6,5 cm² - : 1442-047: WHAT1442-047
Specifications
Grade42Environmentally PreferableWeight100 g/m²Thickness200 µmParticle retention2,5 µmFiltration speed1870 s (Herzberg)Ash content0,007%Airflow rate96 s/100 ml/6,5 cm² - : 1442-055: WHAT1442-055
Specifications
Grade42Environmentally PreferableWeight100 g/m²Thickness200 µmParticle retention2,5 µmFiltration speed1870 s (Herzberg)Ash content0,007%Airflow rate96 s/100 ml/6,5 cm² - : 1442-070: WHAT1442-070
Specifications
Grade42Environmentally PreferableWeight100 g/m²Thickness200 µmParticle retention2,5 µmFiltration speed1870 s (Herzberg)Ash content0,007%Airflow rate96 s/100 ml/6,5 cm² - : 1442-090: WHAT1442-090
Specifications
Grade42Environmentally PreferableWeight100 g/m²Thickness200 µmParticle retention2,5 µmFiltration speed1870 s (Herzberg)Ash content0,007%Airflow rate96 s/100 ml/6,5 cm² - : 1442-110: WHAT1442-110
Specifications
Grade42Environmentally PreferableWeight100 g/m²Thickness200 µmParticle retention2,5 µmFiltration speed1870 s (Herzberg)Ash content0,007%Airflow rate96 s/100 ml/6,5 cm² - : 1442-125: WHAT1442-125
Specifications
Grade42Environmentally PreferableWeight100 g/m²Thickness200 µmParticle retention2,5 µmFiltration speed1870 s (Herzberg)Ash content0,007%Airflow rate96 s/100 ml/6,5 cm² - : 1442-150: WHAT1442-150
Specifications
Grade42Environmentally PreferableWeight100 g/m²Thickness200 µmParticle retention2,5 µmFiltration speed1870 s (Herzberg)Ash content0,007%Airflow rate96 s/100 ml/6,5 cm² - : 1442-185: WHAT1442-185
Specifications
Grade42Environmentally PreferableWeight100 g/m²Thickness200 µmParticle retention2,5 µmFiltration speed1870 s (Herzberg)Ash content0,007%Airflow rate96 s/100 ml/6,5 cm² - : 1442-240: WHAT1442-240
Specifications
Grade42Environmentally PreferableWeight100 g/m²Thickness200 µmParticle retention2,5 µmFiltration speed1870 s (Herzberg)Ash content0,007%Airflow rate96 s/100 ml/6,5 cm² - : 1442-320: WHAT1442-320
Specifications
Grade42Environmentally PreferableWeight100 g/m²Thickness200 µmParticle retention2,5 µmFiltration speed1870 s (Herzberg)Ash content0,007%Airflow rate96 s/100 ml/6,5 cm² - : 1442-6551: WHAT1442-6551
Specifications
Grade42Environmentally PreferableWeight100 g/m²Thickness200 µmParticle retention2,5 µmFiltration speed1870 s (Herzberg)Ash content0,007%Airflow rate96 s/100 ml/6,5 cm² - : 1442-971: WHAT1442-971
Specifications
Grade42Environmentally PreferableWeight100 g/m²Thickness200 µmParticle retention2,5 µmFiltration speed1870 s (Herzberg)Ash content0,007%Airflow rate96 s/100 ml/6,5 cm² - : 1442-917: WHAT1442-917
Specifications
Grade42Environmentally PreferableWeight100 g/m²Thickness200 µmParticle retention2,5 µmFiltration speed1870 s (Herzberg)Ash content0,007%Airflow rate96 s/100 ml/6,5 cm²