Grade 42 Ashless Filter Paper - 125 mm

With the finest retention of all Whatman ashless filter paper grades, Grade 42 is designed for gravimetric analysis and sample preparation for instrumental analysis.

Manufacturer: Whatman

Industries: Pharma , FMCG , Academia , Forensics , Environment , Agriculture , Cement & Mining

Product Code: 1442-125

GST: 18.00 %

Catalog Number: 1442-125

HSN Code: 48232000

Packaging: 100 circles

UOM: Pack

Delivery date: Within 15 Days

₹ 5,190.00

Qty:

Our high-purity Whatman ashless Grade 42 quantitative filter papers are suitable for a wide range of critical analytical filtration procedures for quantitative analysis. Grade 42 filter 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.

Ashless: 0.007% ash maximum
Fine (2.5 μm) nominal particle retention rating, eliminates large particles that might otherwise interfere with sensitive instrumentation
Herzberg filtration speed of 1870 s
Commonly used as a calcium carbonate filter
Particularly suitable for gravimetric analysis

Whatman ashless quantitative filter papers are high-purity filters that support accurate analysis in applications sensitive to very low levels of background contamination and in gravimetric analysis where ash content might affect weight measurements of combusted samples. Whatman ashless filter papers are suited for:

Environmental analysis: soil filtration analysis, when separating solid matter from aqueous extracts
Retention of small particles
Collection of trace elements and radionuclides from the atmosphere

Specification:

Parameter	Grade 42 Ashless Filter Paper for Instrumental Analysis, 125 mm circle (100 pcs)
Grade	Grade 42
Format	Circles
Type	Ashless
Typical Particle Retention in Liquid¹	2.5 µm
Nominal Thickness	200 µm
Typical water flow rate²	5 ml/min
Nominal Basis Weight	100 g/m²
Nominal Air Flow Rate	96 s/100 mL/in²
Nominal Ash Content³	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 critical gravimetric analysis with the finest particle retention.
Dimensions	Ø 125 mm

¹Particle retention rating at 98% efficiency.

²For 9 cm diameter

³Ash is determined by ignition of the cellulose filter at 900°C in air.

Product tags

whatman grade 42 (2)
,
125mm (2)
,
1442-125 (1)
,
ashless (4)
,
filter paper (10)

Grade 42 Ashless Filter Paper - 125 mm

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