Quantitative Filter Paper, No: 4A Hardened Ashless, dia: 18.5cm

Quantitative Filter Paper No : 4A Hardened Ashless Dia : 18.5cm Pcs / pack : 100 Quantitative filter paper for gravimetric analysis or environmental monitoring: - Made of Highest quality alpha cotton cellulose; " Ashless" ( Ash content 0.01% ) - Acid washed and rinsed with ultrapure water to neutralize Product Specifications No. 4A Hardened Ashless: Type : No. 4A Hardened Ashless Applications/ Comments : Retains fine particles, slow flow rate. High wet strength, suitable for use under high pressure, with good pH and chemical resistance. Weight ( g/ m2) : 96 Thickness ( mm) : 0.12 Retention Characteristics ( ¼ m) : Very Fine ( < 5) Collection Efficiency ( % , 0.3¼ m DOP) : 90