Filter paper, qualitative

The absorbent paper strips are made of qualitative filter paper. They are suited to absorb excess fluids such as staining solutions for microscope specimens.

The qualitative filter papers are manufactured from pure cellulose with a proportion of alpha-cellulose of almost 100 %. The ash content is about 0.06 %.

Grade 2020, medium to slow filtering, particle retention 5-13 µm, filtration speed 88 s according to DIN 53137, basis weight 73 g/m², thickness 0.16 mm

For fast filtration with fine particles for general, electrolytic application in schools, research, health care, food and cosmetics industry.

The LABSOLUTE® extraction thimbles are made of 100 % cellulose. They have a high mechanical stability and are free from binders. The extraction thimbles have a wall thickness of about 1 mm and a pore size of approximately 5 µm. They are perfect for all kind of Soxhlet extractions as well as for the separation of liquid and solid particles out of air and gases.

The qualitative filter papers are manufactured from pure cellulose with a proportion of alpha-cellulose of almost 100 %. The ash content is about 0.06 %.

Grade 2015, medium to slow filtering, particle retention 5-8 µm, filtration speed 50 s according to DIN 53137, basis weight 87 g/m², thickness 0.16 mm

For fast filtration with fine particles, when the filtration speed plays a minor role.

The qualitative filter papers are manufactured from pure cellulose with a proportion of alpha-cellulose of almost 100 %. The ash content is about 0.06 %.

Grade 2020, medium to slow filtering, particle retention 5-13 µm, filtration speed 88 s according to DIN 53137, basis weight 73 g/m², thickness 0.16 mm

For fast filtration with fine particles for general, electrolytic application in schools, research, health care, food and cosmetics industry.

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. The qualitative filter papers are manufactured from pure cellulose with a proportion of alpha-cellulose of almost 100 %. The ash content is about 0.06 %.

Grade 2105, fast filtering, particle retention 12-15 µm, filtration speed 10 s according to DIN 53137, basis weight 84 g/m², thickness 0.20 mm, wet strengthened

For large-volume or gel-like deposits (e.g. hydroxides of iron and copper or sulphides of iron and cobalt). Especially high mechanical strength and resistance to acids and alkalis.

The qualitative filter papers are manufactured from pure cellulose with a proportion of alpha-cellulose of almost 100 %. The ash content is about 0.06 %.

Grade 2005, fast filtering, particle retention 12-15 µm, filtration speed 10 s complies with DIN 53137, basis weight 84 g/m², thickness 0.20 mm

For large-volume or gel-like deposits (e.g. hydroxides of iron and copper or sulphides of iron and cobalt).

The qualitative filter papers are manufactured from pure cellulose with a proportion of alpha-cellulose of almost 100 %. The ash content is about 0.06 %.

Grade 2010, 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

The most frequently used filter for analytical work, e.g. malt analyses according to EBC, precipitation of silver sulphide, precipitation of chromates (iron, lead, arsenic).

The qualitative filter papers are manufactured from pure cellulose with a proportion of alpha-cellulose of almost 100 %. The ash content is about 0.06 %.

Grade 2015, medium to slow filtering, particle retention 5-8 µm, filtration speed 50 s according to DIN 53137, basis weight 87 g/m², thickness 0.16 mm

For fast filtration with fine particles, when the filtration speed plays a minor role.

The qualitative filter papers are manufactured from pure cellulose with a proportion of alpha-cellulose of almost 100 %. The ash content is about 0.06 %.

Grade 2005, fast filtering, particle retention 12-15 µm, filtration speed 10 s according to DIN 53137, basis weight 84 g/m², thickness 0.20 mm

For large-volume or gel-like deposits (e.g. hydroxides of iron and copper or sulphides of iron and cobalt).

The qualitative filter papers are manufactured from pure cellulose with a proportion of alpha-cellulose of almost 100 %. The ash content is about 0.06 %.

Grade 2030, 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

For difficult filtration requirements or very fine precipitates (e.g. barium sulphate, copper oxide, tin oxide)

The qualitative filter papers are manufactured from pure cellulose with a proportion of alpha-cellulose of almost 100 %. The ash content is about 0.06 %.

Grade 2025, slow filtering, particle retention 3-5 µm, filtration speed 100 s according to DIN 53137, basis weight 84 g/m², thickness 0.15 mm

For precipitation such as zinc, nickel and tin sulphide, calcium fluoride and calcium hydroxide.

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. The qualitative filter papers are manufactured from pure cellulose with a proportion of alpha-cellulose of almost 100 %. The ash content is about 0.06 %.

Grade 2110, medium fast filtering, particle retention 17-30 µm, filtration speed 22 s according to DIN 53137, basis weight 73g/m², thickness 0.17 mm, wet strengthened

For large volume or gel-like precipitation. Especially high mechanical strength and resistance to acids and alkalis.

The qualitative filter papers are manufactured from pure cellulose with a proportion of alpha-cellulose of almost 100 %. The ash content is about 0.06 %.

Grade 2010, 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

The most frequently used filter for analytical work, e.g. malt analyses according to EBC, precipitation of silver sulphide, precipitation of chromates (iron, lead, arsenic).

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. The qualitative filter papers are manufactured from pure cellulose with a proportion of alpha-cellulose of almost 100 %. The ash content is about 0.06 %.

Grade 2130, 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, wet strengthened

For difficult filtration requirements or very fine precipitates (e.g. barium sulphate, copper oxide, tin oxide) Especially high mechanical strength and resistance to acids and alkalis.

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. The qualitative filter papers are manufactured from pure cellulose with a proportion of alpha-cellulose of almost 100 %. The ash content is about 0.06 %.

Grade 2115, medium to slow filtering, particle retention 5-8 µm, filtration speed 50 s according to DIN 53137, basis weight 84 g/m², thickness 0.15 mm, wet strengthened

For fast filtration with fine particles, when the filtration speed plays a minor role. Especially high mechanical strength and resistance to acids and alkalis.

The qualitative filter papers are manufactured from pure cellulose with a proportion of alpha-cellulose of almost 100 %. The ash content is about 0.06 %.

Grade 2025, slow filtering, particle retention 3-5 µm, filtration speed 100 s according to DIN 53137, basis weight 84 g/m², thickness 0.15 mm

For precipitation such as zinc, nickel and tin sulphide, calcium fluoride and calcium hydroxide.

The qualitative filter papers are manufactured from pure cellulose with a proportion of alpha-cellulose of almost 100 %. The ash content is about 0.06 %.

Grade 2035, very slow filtering, particle retention 2 µm, filtration speed 300 s according to DIN 53137, basis weight 80 g/m², thickness 0.14 mm

For fine and very fine precipitates, e.g. in sample preparation, beverage industry for residual sugar determination and HPLC.

The qualitative filter papers are manufactured from pure cellulose with a proportion of alpha-cellulose of almost 100 %. The ash content is about 0.06 %.

Grade 2030, 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

For difficult filtration requirements or very fine precipitates (e.g. barium sulphate, copper oxide, tin oxide)

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. The qualitative filter papers are manufactured from pure cellulose with a proportion of alpha-cellulose of almost 100 %. The ash content is about 0.06 %.

Grade 2105, fast filtering, particle retention 12-15 µm, filtration speed 10 s according to DIN 53137, basis weight 84 g/m², thickness 0.20 mm, wet strengthened

For large-volume or gel-like deposits (e.g. hydroxides of iron and copper or sulphides of iron and cobalt). Especially high mechanical strength and resistance to acids and alkalis.

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. The qualitative filter papers are manufactured from pure cellulose with a proportion of alpha-cellulose of almost 100 %. The ash content is about 0.06 %.

Grade 2115, medium to slow filtering, particle retention 5-8 µm, filtration speed 50 s complies with DIN 53137, basis weight 84 g/m², thickness 0.15 mm, wet strengthened

For fast filtration with fine particles, when the filtration speed plays a minor role. Especially high mechanical strength and resistance to acids and alkalis.

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. The qualitative filter papers are manufactured from pure cellulose with a proportion of alpha-cellulose of almost 100 %. The ash content is about 0.06 %.

Grade 2110, medium fast filtering, particle retention 17-30 µm, filtration speed 22 s according to DIN 53137, basis weight 73g/m², thickness 0.17 mm, wet strengthened

For large volume or gel-like precipitation. Especially high mechanical strength and resistance to acids and alkalis.

Medio rapida, dimensioni pori da 5 a 8 µm o da 5 a 13 µm

Medio rapida, dimensione pori da 5 a 8 µm.

• Per filtrazione rapida con particelle fini

Molto rapida, dimensione pori da 12 a 15 µm.

Velocità media, dimensioni pori da 5 a 13 µm.

• per lavori analitici in laboratorio

Lenta, dimensione pori da 2 a 3 µm.

Filtri rotondi e fogli. Per analisi qualitativa. Leggermente più spessa del tipo 1.

Filtro rotondo. Per scopi generici, increspate.

Filtrazione medio-rapida, piegata.
Per la determinazione del grasso, priva di grassi e resine. Residuo solubile in etere <0,1 mg per diam. Filtri da 270 mm.

Rotonda. Qualitativa. Ritenzione eccellente di precipitati grezzi e gelatinosi. Liscia.

Medio rapida, da 4 a 7µm

• Risparmio di tempo, poiché i filtri piegati hanno una superficie maggiore
• Filtrare più velocemente rispetto ai filtri circolari comparabili
• Per precipitati da medi a fine e per applicazioni generali in laboratorio
• Peso: 68g / m²
• Spessore: 0,15 mm

Rapido, liscio.

Medio-rapido, liscio.

Per la determinazione di sostanze nutritive povere di azoto e fosforo.

Medio veloce da 4 a 7 µm

• carta da filtro sottile
• per precipitati da medi a fini e per lavori di laboratorio generali
• peso: 68g/m²
• spessore: 0.150 mm

Filtri rotondi e fogli. Per analisi qualitativa. Per usi generali

Medio rapida, da 4 a 7µm

• Risparmio di tempo, poiché i filtri piegati hanno una superficie maggiore
• Filtrare più velocemente rispetto ai filtri circolari comparabili
• Per precipitati da medi a fini e applicazioni generali in laboratorio
• Peso: 85g / m²
• Spessore: 0,18 mm

Carta da filtro altamente pura (circa 0,08% di ceneri) consigliata per identificazione precisa dei materiali e per preparazione dei campioni prima di metodi di rilevamento sensibili. Queste carte da filtro sono perfettamente qualificate per il controllo degli alimenti secondo LFBG paragrafo 64 punti 1 e 2, analisi delle bevande e monitoraggio ambientale.

• Realizzata con le stesse materie prime (linters di cotone super raffinato e cellulosa) come le carte da filtro quantitative
• Elevata stabilità e durata grazie al contenuto di alfa-cellulosa superiore al 95%

Filtrazione media, liscia.

Carta da filtro in dischi pieghettati, tipo 602 EH ½. Superficie liscia.
Molto lenta, molto densa. Basso contenuto di ceneri, per analisi qualitative. Applicazioni in analisi ambientali: recupero di componenti puri in cristalli finissimi (<1um) da materiali di riciclaggio, filtrazione finissima in test di liscivazione nell"analisi dei rifiuti (p.e. terreni, polveri da filtro, ceneri ecc.). Tempo di filtrazione indicato secondo Herzberg: 3000 s. Peso: 85g/m2 Spessore: 0.15 mm

Alloggiamento MBS. Membrana SFCA / CA (Acetato di Cellulosa privo di Surfactante). Per filtrazione sterile, senza particelle e ultrapura di piccoli volumi di liquidi fino a circa 100 ml. Codifica colore e stampa per facile identificazione della membrana e della porosità. Con membrana idrofila in acetato di cellulosa per adsorbimento minimo). Subito pronta all"uso. Con ingresso femmina Luer-lock e uscita maschio Luer-slip.

Adatti per analisi analitiche e gravimetriche, nonchè come pre-filtro.

• Idrofili
• Filtrazione liquida
• Non-sterili

Per analisi qualitativa. Filtro pre-piegato versione del Numero 2.

Dimensioni: 580 x 580 mm, crespa.
Altre dimensioni sono disponibili a richiesta.

Carta da filtro in dischi piani e in fogli.
Tempo di filtrazione indicato secondo Herzberg: 1500 s.
Peso: 84g/m2
Spessore: 0.16 mm

Medio rapida, da 4 a 7µm.

• Più spessa e più veloce del tipo 595
• Per precipitati da medi a fini
• Peso 85g / m²
• Spessore 0,180 mm

Medio-rapida

• Increspata
• Per determinazione del quantitativo di zuccheri, colore, olii essenziali ed emulsioni
• peso: 75 g/m²
• Spessore: 0.25 mm

Filtro rotondo e foglio. Per analisi qualitativa. Spessore elevato.

Semi-rapida, da 4 a 12 µm. Fascia bianca.

• per analisi in campo alimentare
• per carbonati di metalli alcalino-terrosi, (NH₄)₃(P(Mo₃O₁₀)4) x aq., Mg(NH₄)PO_4, CaC₂O₄ (precipitati caldi)
• Peso: 85 g/m2
• Spessore: 0.18 mm

Morbida, tempo di filtrazione di 9 sec., liscia.

Adatti per metodi analitici in fabbriche di birra per filtrare ed analizzare, basati su procedure raccomandate da EBC ( (European Brewery Convention).

• Velocità media
• Superficie granulosa

Veloce, da 12 a 25 µm

• Risparmio di tempo, poiché i filtri piegati hanno una superficie maggiore
• Si filtra più velocemente rispetto ai filtri circolari comparabili
• Per precipitati grossolani (ad esempio idrossido e solfuro)
• Peso: 80g / m²
• Spessore: 0,19 mm

Da media a lenta, da 2 a 5µm

• Risparmio di tempo, poiché i filtri piegati hanno una superficie maggiore rispetto ai filtri circolari comparabili
• Per precipitati da medi a fini e per applicazioni generali in laboratorio
• Peso: 85g / m²
• Spessore: 0,17mm