Lark filter paper grade 41

Lark filter paper grade 41

GRADE 41 the fastest ashless filter paper, recommended for analytical procedures involving coarse particles or gelatinous precipitates (e.g., iron or aluminum hydroxides). Also used in quantitative air pollution analysis as a paper tape for impregnation when determining gaseous compounds at high flow rates.

GRADE 41 FILTER PAPER ASHLESS HARDENED

The typical grade for quantitative tasks, is coarser precipitates, such as lead-, iron, and silver sulfide alkali carbonates, foodstuff, and soil analysis. Filtration Speed Fast, Retention – coarse and gelatinous precipitates retains particles >15 µm, filters hydroxides and metallic aerosols, used in environmental monitoring, determiningsilica content in steel. GRADE 41 Filtration Speed Fast, Retention – coarse and gelatinous precipitates retention particles >15 µm, filters hydroxides and metallic aerosols, used in environmental monitoring, determining silica content in steel