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- General laboratory consumables
- Occupational safety, Security
- Analytical measurement and testing
- Stirring, Shaking, Mixing
- Sample preparation
- Distillation, separation, filtration
- Heating and cooling technology
- Liquid Handling
- Vacuum technology, Drying, Dry storage
- Optical instruments and microscopes
- Cleaning and sterilisation
- Environmental-, soil-, water-, food analysis
- Chromatography
- Cleanroom
Filter paper, quantitative
Circles, quantitative, red ribbon equivalent, grade 1015
The filter papers for quantitative analyses are made of 100 % cotton linters. For maximum purity the papers are acid-washed and cleaned with demineralized water. Ash content is 0.007 %.
Grade 1015, medium to slow filtering, particle retention 5-8 µm, filtration speed 50 s according to DIN 53137, basis weight 84 g/m², thickness 0.16 mm...
Circles, quantitative, black ribbon equivalent, grade 1005
The filter papers for quantitative analyses are made of 100 % cotton linters. For maximum purity the papers are acid-washed and cleaned with demineralized water. Ash content is 0.007 %.
Grade 1005, fast filtering, particle retention 12-15 µm, filtration speed 10 s complies with DIN 53137, basis weight 84 g/m², thickness 0.18 mm...
Circles, quantitative, white ribbon equivalent, grade 1010
The filter papers for quantitative analyses are made of 100 % cotton linters. For maximum purity the papers are acid-washed and cleaned with demineralized water. Ash content is 0.007 %.
Grade 1010, medium fast filtering, particle retention 8-12 µm, filtration speed 20 s according to DIN 53137, basis weight 84 g/m², thickness 0.17 mm...
Circles, quantitative, blue ribbon equivalent, grade 1025
The filter papers for quantitative analyses are made of 100 % cotton linters. For maximum purity the papers are acid-washed and cleaned with demineralized water. Ash content is 0.007 %.
Grade 1025, very slow filtering, particle retention 2-3 µm, filtration speed 180 s according to DIN 53137, basis weight 84 g/m², thickness 0.14 mm...
Circles, quantitative, green ribbon equivalent, grade 1020
The filter papers for quantitative analyses are made of 100 % cotton linters. For maximum purity the papers are acid-washed and cleaned with demineralized water. Ash content is 0.007 %.
Grade 1020, slow filtering, particle retention 3-5 µm, filtration speed 100 s according to DIN 53137, basis weight 84 g/m², thickness 0.15 mm...
Circles, quantitativ, wet strengthened, grade 1110
The wet-strengthened filter papers exhibit a very high degree of mechanical stability. They are resistant against acidic and alkaline solutions and are suitable for pressure and vacuum filtration. They are made of 100 % cotton linters. For maximum purity the papers are acid-washed and cleaned with demineralized water. Ash content is 0.007 %....
Circles, quantitativ, wet strengthened, grade 1105
The wet-strengthened filter papers exhibit a very high degree of mechanical stability. They are resistant against acidic and alkaline solutions and are suitable for pressure and vacuum filtration. They are made of 100 % cotton linters. For maximum purity the papers are acid-washed and cleaned with demineralized water. Ash content is 0.007 %....
Circles, quantitativ, wet strengthened, grade 1125
The wet-strengthened filter papers exhibit a very high degree of mechanical stability. They are resistant against acidic and alkaline solutions and are suitable for pressure and vacuum filtration. They are made of 100 % cotton linters. For maximum purity the papers are acid-washed and cleaned with demineralized water. Ash content is 0.007 %....
Quantitative filter papers, wet-strengthened, grade 1115, circles
The wet-strengthened filter papers exhibit a very high degree of mechanical stability. They are resistant against acidic and alkaline solutions and are suitable for pressure and vacuum filtration. They are made of 100 % cotton linters. For maximum purity the papers are acid-washed and cleaned with demineralized water. Ash content is 0.007 %....
LLG-Quantitative filter paper, circles, very fast
Made from 100 % cellulose.
Filtration speed according to DIN 53137.
Capacity of separation according to DIN 53135.
Pore size 15 to 20 µm.
- For coarse, high volume precipitates
- Fordeterminations according to the German Standard Methods for the examination of water, waste water and sludge
- ForFe(OH)2, Al(OH)3, NaSO4
- Ashless, equivalent black ribbon
LLG-Quantitative filter paper, circles, slow
Made from 100 % cellulose.
Filtration speed according to DIN 53137.
Capacity of separation according to DIN 53135.
Pore size 2 to 3 µm.
- For very fine precipitates and small particles
- For soil analysis
- For BaSO4 (hot precipitate), PbSO4, Cu2O, ZnS, NiS
- Ashless, equivalent blue tape
LLG-Quantitative filter paper, circles, fast
Made from 100 % cellulose.
Filtration speed according to DIN 53137.
Capacity of separation according to DIN 53135.
Pore size 20 to 25 µm.
- Most frequently used quantitative filter
- For PbS, Ag2S, FeS, carbonates
- Ashless, equivalent white tape
Quantitative filter paper, Grade 589/1, circles
Fast 12 to 25µm
Black ribbon
- for coarse, high volume precipitates
- for determinations according to the German Standard Methods for the examination of water, waste water and sludge.
- most frequently used quantitative filter
- Weight: 80g/m²
- Thickness: 0.19mm
Qualitative Filters 551, black, round filters
Recommended for the detection of very fine traces of light-coloured particles and precipitates.
- Made of pure celluloses and with constriction of black additives
- White and light-coloured particles can be detected easily by the strong contrast to the black filter paper
- Weight 95 g/m2
- Thickness 0,2 mm
- Filtration speed acc. to Herzberg 850 s