Filtry jakościowe Grade 1
Popularny standardowy papier filtracyjny do rutynowych aplikacji, o średniej retencji i przepływie. Obejmuje szeroki zakres zastosowań laboratoryjnych, najczęściej używany do oczyszczania cieczy.
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. Extended range of sizes includes 10 to 500 mm diameter circles and 460 x 570 mm sheets. This filter is also available in the FilterCup, this is a convenient, disposable 70 mm filter funnel with a 250 ml capacity molded from polypropylene with an integral, heat bonded filter (catalog number 1600-001). 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.
Grade Grade 1 
Grade Type Standard 
Diameter 25 mm
Typical Particle Retention in Liquid 11 µm 
Nominal Thickness 180 µm
Typical water flow rate 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. 
Product Product Name Format  Dimensions  Pack size 
1001-0155 Grade 1 Qualitative Filter Paper Standard Grade; circle; 15 mm Circles 15 mm 500 pieces
1001-020 Grade 1 Qualitative Filter Paper Standard Grade; circle; 20 mm Circles 20 mm 400 pieces
1001-025 Grade 1 Qualitative Filter Paper Standard Grade; circle; 25 mm Circles 25 mm 400 pieces
1001-030 Grade 1 Qualitative Filter Paper Standard Grade; circle; 30 mm Circles 30 mm 400 pieces
1001-032 Grade 1 Qualitative Filter Paper Standard Grade; circle; 32 mm Circles 32 mm 100 pieces
1001-042 Grade 1 Qualitative Filter Paper Standard Grade; circle; 42.5 mm Circles 42.5 mm 100 pieces
1001-045 Grade 1 Qualitative Filter Paper Standard Grade; circle; 14.5 cm Circles 14.5 cm 100 pieces
1001-047 Grade 1 Qualitative Filter Paper Standard Grade; circle; 47 mm Circles 47 mm 100 pieces
1001-055 Grade 1 Qualitative Filter Paper Standard Grade; circle; 55 mm Circles 55 mm 100 pieces
1001-070 Grade 1 Qualitative Filter Paper Standard Grade; circle; 70 mm Circles 70 mm 100 pieces
1001-085 Grade 1 Qualitative Filter Paper Standard Grade; circle; 85 mm Circles 85 mm 100 pieces
1001-090 Grade 1 Qualitative Filter Paper Standard Grade; circle; 90 mm Circles 90 mm 100 pieces
1001-110 Grade 1 Qualitative Filter Paper Standard Grade; circle; 110 mm Circles 110 mm 100 pieces
1001-125 Grade 1 Qualitative Filter Paper Standard Grade; circle; 125 mm Circles 125 mm 100 pieces
1001-150 Grade 1 Qualitative Filter Paper Standard Grade; circle; 150 mm Circles 150 mm 100 pieces
1001-185 Grade 1 Qualitative Filter Paper Standard Grade; circle; 185 mm Circles 185 mm 100 pieces
1001-240 Grade 1 Qualitative Filter Paper Standard Grade; circle; 240 mm Circles 240 mm 100 pieces
1001-270 Grade 1 Qualitative Filter Paper Standard Grade; circle; 270 mm Circles 270 mm 100 pieces
1001-320 Grade 1 Qualitative Filter Paper Standard Grade; circle; 320 mm Circles 320 mm 100 pieces
1001-325 Grade 1 Qualitative Filter Paper Standard Grade; circle; 25 mm Circles 25 mm 100 pieces
1001-329 Grade 1 Qualitative Filter Paper Standard Grade; circle; 30 mm Circles 30 mm 100 pieces
1001-385 Grade 1 Qualitative Filter Paper Standard Grade; circle; 385 mm Circles 385 mm 100 pieces
1001-400 Grade 1 Qualitative Filter Paper Standard Grade; circle; 400 mm Circles 400 mm 100 pieces
1001-500 Grade 1 Qualitative Filter Paper Standard Grade; circle; 150 cm Circles 150 cm 100 pieces
1001-6508 Grade 1 Qualitative Filter Paper Standard Grade; circle; 10 mm Circles 10 mm 500 pieces
1001-813 Grade 1 Qualitative Filter Paper Standard Grade; sheet; 26 × 31 mm Sheets 26 x 31 mm (1 x 1.23 in) 1000 pieces
1001-824 Grade 1 Qualitative Filter Paper Standard Grade; sheet; 75 × 100 mm Sheets 75 x 100 mm (3 x 4 in) 500 pieces
1001-917 Grade 1 Qualitative Filter Paper Standard Grade; sheet; 460 × 570 mm Sheets 460 x 570 mm (18.11 x 22.45 in) 100 pieces
1001-918 Grade 1 Qualitative Filter Paper Standard Grade; sheet; 460 × 570 mm Sheets 460 x 570 mm (18.11 x 22.45 in) 500 pieces
1001-929 Grade 1 Qualitative Filter Paper Standard Grade; sheet; 600 × 600 mm Sheets 600 x 600 mm (23.62 x 23.62 in) 100 pieces
1001-931 Grade 1 Qualitative Filter Paper Standard Grade; sheet; 580 × 680 mm Sheets 580 x 680 mm (22 x 26 in) 100 pieces
1001-932 Grade 1 Qualitative Filter Paper Standard Grade; sheet; 580 × 680 mm Sheets 580 x 680 mm (22 x 26 in) 500 pieces