Whatman™ Quantitative Filter Papers, Ashless Grades (ash 0.007%), Grade 42

Supplier: Cytiva
1442-042 1442-055 1442-070 1442-090 1442-110 1442-125 1442-150 1442-185 1442-240 1442-047 1442-320 1442-6551 1442-917
28480-026PK 38.91 USD
28480-026 28480-048 28480-060 28480-081 28480-106 28480-128 28480-140 28480-161 28480-182 11008-522 28297-312 10035-270 10035-272
Whatman™ Quantitative Filter Papers, Ashless Grades (ash 0.007%), Grade 42
Filters Filter Paper Quantitative Filter Paper
Cytiva's Whatman Grade 42 quantitative papers have the finest retention of all Whatman ashless filter paper grades. Grade 42 is designed for gravimetric analysis and sample preparation for instrumental analysis.

  • Fine (2.5 µm) nominal particle retention rating, eliminates large particles that might otherwise interfere with sensitive instrumentation
  • Commonly used as a calcium carbonate filter

These filter papers are designed for retention of extremely small particles. Other typical precipitates for gravimetric analysis include barium sulfate andMore Product Information
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SPECIFICATIONS

Environmentally Preferable
Thickness 200 µm (typical)
Particle Retention 2.5 µm (Particle retention rating at 98% efficiency), in liquid max.
Filtration Speed 1870 s (Herzberg)
Ash Content 0,007%
Airflow Rate 96 s/100 ml/in²
Basis Weight 100 g/m²
Burst Strength 0.048 bar wet burst; 1.723 bar dry burst
Flow Rate 5 ml/min (Water flow)
Tensile Strength 55.8 N/15 mm, Tensile M/D Dry

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