PAPEL FILTRO QUANTITATIVO GR 540 8 um 9 cm WHATMAN™ (CYTIVA) - 100 UND

Product specifications Whatman™ Grade 540 quantitative filter paper, hardened ashless, 90 mm circles (100/Pk) Diameter 90 mm Pack size 100/Pk Format Circles Grade Grade 540 Material High-quality cotton linters Basis weight 85 g/m² Nominal thickness 160 µm Alpha cellulose content min. ≥98% Application Frequently used in the gravimetric alysis of metals in acid/alkali solutions and in collecting hydroxides after precipitation by strong alkalis. Ash content % 0.005% Nominal air flow rate 13 s/100 mL/in² Type Hardened Ashless Typical particle retention in liquid 8 µm Typical trace element levels Aluminium 3.4 µg/g; Antimony <0.5 µg/g; Arsenic <0.5 µg/g; Barium <0.5 µg/g; Boron <1 µg/g; Calcium 14.7 µg/g; Chromium 1.1 µg/g; Copper 8.2 µg/g; Iron 16.3 µg/g; Lead <0.5 µg/g; Magnesium 3.3 µg/g; Manganese <0.5 µg/g; Mercury <0.5 µg/g; Potassium 3.7 µg/g; Silicon <6 µg/g; Sodium 17 µg/g; Zinc 87.8 µg/g Typical water flow rate 97 ml/min at 45 psi (3.1 bar) Color Yellow