Grade 54 Filter Paper, Hardened Low Ash, 460x570mm Sheet, 100/Pk SKU: 1454-917

Quantitative Hardened Filter Paper - 1454-917

Classical silica determination by acid dissolution and ignition needs paper hardened against the aggressive chemistry before the gravimetric endpoint. Hardened matrix withstands oxidizing and reducing reagents that cause fiber degradation in untreated quantitative papers. Together, consistent physical properties across the full sheet area support uniform filtration results in both gravity and vacuum applications.

Key Filter Paper Characteristics

• Combines the low ash properties of quantitative paper with the chemical durability that demanding analytical procedures require.
• Increased wet modulus prevents dimensional changes during prolonged immersion in hot analytical solutions.
• Surface hardening process preserves fiber integrity during scraping and folding operations required for precipitate recovery.
• Chemical hardening extends the usable service life of the paper during long-duration filtration runs with aggressive solutions.
• Maintains retention characteristics through exposure to oxidizing and reducing reagents that degrade untreated papers.

When your quality system requires documented specifications for every consumable, the grade data above provides the traceability your auditors expect. In practice, surface-hardened construction maintains wet integrity through the prolonged washing cycles your precipitate purification requires. Elevate the quality of your analytical data today by standardizing on a filtration product built to meet the exact specifications of your applications.

Dimensions

460 x 570mm

Flow Speed

Fast

Folded/ Fluted/ Pleated

No

Grade

54

Hardened (Yes/ No)

Yes

Material

Cellulose Fiber

Nominal Ash Content (%)

<0.015%

Nominal Basis Weight (g/ m²)

90g/m²

Pack Count

100

Particle Retention

22um

Pore Size (µm)

22

Qualitative/ Quantitative

Quantitative

Sterility

Nonsterile

Wet Strengthened (Yes/ No)

Yes

Wettability

Hydrophilic

• Precipitate Scraping - Hardened surface allows mechanical recovery of collected solids without paper tearing or fiber contamination.
• Phosphorus Removal - Withstands oxidizing acids during phosphorus determination by molybdate precipitation in steel analysis.
• Cement Raw Material - Handles the alkaline and acidic reagents used in cement clinker and raw meal chemical analysis methods.
• Fuming Acid Procedures - Survives concentrated sulfuric and nitric acid contact during classical inorganic analytical preparations.
• Extended Reagent Wash - Maintains structural integrity through prolonged wash sequences that remove interfering co-precipitants.
• Tungsten Determination - Survives strong acid treatments during tungsten oxide precipitation from tool steel and mineral samples.