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Grade 1 Qualitative Filter Paper - 125 mm

Whatman Grade 1 Qualitative Filter Paper covers a wide range of laboratory applications, frequently used for clarifying liquids. It is widely used in education for teaching simple qualitative analytical separations.
Manufacturer: Whatman
Product Code: 1001-125
GST: 18.00 %
Catalog Number: 1001-125
HSN Code: 48232000
Packaging: 100 circles
UOM: Nos
Delivery date: Within 15 Days
₹ 1,240.00

A widely used standard grade filter paper for routine applications with medium retention and flow rate. It covers a wide range of laboratory applications and is frequently used for clarifying liquids.

These cellulose filters are used in qualitative analytical techniques to determine and identify materials. Prepleated qualitative filters are also available, which give improved flow rate and increased loading capacity compared to equivalent flat filters.

Grade 1: 11 µm

The most widely used filter paper for routine applications with medium retention and flow rate. This grade covers a wide range of laboratory applications and is frequently used for clarifying liquids. Traditionally the grade is used in qualitative analytical separations for precipitates such as lead sulfate, calcium oxalate (hot), and calcium carbonate. In agriculture, it is used for soil analysis and seed testing procedures. In the food industry, Grade 1 is used for numerous routine techniques to separate solid foodstuffs from associated liquid or extracting liquid and is widely used in education for teaching simple qualitative analytical separations. In air pollution monitoring, using circles or rolls, atmospheric dust is collected from airflow and the stain-intensity measured photometrically. For gas detection, the paper is impregnated with a chromogenic reagent and color formation quantified by optical reflectance.

Specification:

Parameter Grade 1 Qualitative Filter Paper Standard Grade, circle, 125 mm
Grade1 Grade 1 
Grade Type Standard 
Diameter 125 mm
Typical Particle Retention in Liquid2 11 µm 
Nominal Thickness 180 µm
Typical water flow rate3 57 ml/min 
Nominal Basis Weight 87 g/m²
Nominal Air Flow Rate 13 s/100 ml/in² 
Nominal Ash Content 0.06% 
Material Cellulose 
Typical Trace Element Levels Aluminium 3.6 µg/g Antimony <0.5 µg/g Arsenic <0.5 µg/g Barium <0.5 µg/g Boron <1 µg/g Calcium 27.5 µg/g Chromium 1 µg/g Copper 0.9 µg/g Iron 13.7 µg/g Lead <0.5 µg/g Magnesium 21 µg/g Manganese <0.5 µg/g Mercury <0.5 µg/g Potassium 6.2 µg/g Silicon 8.8 µg/g Sodium 32.3 µg/g Zinc 58.3 µg/g 
Application Used filter paper for routine applications with medium retention and flow rate. Covers a wide range of laboratory applications and is frequently used for clarifying liquids. 
Format Circles 
Dimensions Ø 125 mm 
Pack size 100 pieces 

 

1Particle retention rating at 98% efficiency.

2For 9 cm diameter

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