Quantitative Filter Paper, Grade 43, Ashless, Medium, 14-17um, 185mm, Nonsterile, 100/Pk
GVS SKU: FP185DME43QANC01

Featuring an ashless cellulose depth medium refined from high-purity pulp and cotton linters, this Grade 43 (DME43) quantitative filter paper delivers a medium flow rate with a 14 to 17 um particle retention range across a 185 mm diameter disc. With a nominal thickness of 180 um, a basis weight of 85 g/m2, and an ash content below 0.007 percent, it provides the purity and consistency required for gravimetric analysis and the preparation of samples for instrumental techniques. Each box contains 100 discs.

Key Filter Paper Characteristics

• Ashless cellulose construction with an ash content below 0.007 percent for critical gravimetric and quantitative analysis.
• Medium retention range of 14 to 17 um suited to intermediate precipitate collection at a balanced flow rate.
• Nominal thickness of 180 um and basis weight of 85 g/m2 for consistent depth filtration.
• Hydrophilic structure that wets readily for aqueous filtration in Buchner funnels and under pressure.
• Manufactured from refined pulp and cotton linters for high purity and reliable mechanical strength.

Key Construction Characteristics

• 185 mm diameter circle format for large funnel and gravimetric setups.
• Quantitative ashless grade equivalent to Whatman Grade 43.
• Supplied nonsterile, 100 discs per box.

This grade delivers dependable, reproducible retention for inorganic analysis and sample preparation, maintaining sample integrity through its low ash content and uniform cellulose matrix. The medium retention and flow balance make it well suited to routine high-volume filtration where both throughput and analytical accuracy matter.

Color

White

Diameter

185mm

Flow Speed

Medium

Grade

DME43

Material

Cellulose (Ashless)

Mesh Format

Circle

Nominal Ash Content (%)

<0.007

Nominal Basis Weight (g/ m²)

85

Nominal Thickness (µm)

180

Pack Count

100

Particle Retention

14-17 µm

Pore Size (µm)

14-17

Qualitative/ Quantitative

Quantitative

Sterility

Nonsterile

Wettability

Hydrophilic

Whatman Equivalent

43

• Gravimetric Analysis The ashless cellulose medium with under 0.007 percent ash content supports precise gravimetric determinations where residue must be minimized.
• Sample Preparation for Instrumental Analysis Clarifies samples prior to analysis by techniques such as XRF, AA, or ICP without introducing interfering ash.
• Soil and Sediment Analysis The medium 14 to 17 um retention range captures intermediate particulates common in soil extract filtration.
• Surface Water Testing Provides reliable clarification of water samples for environmental monitoring workflows.
• Air Pollution Particle Collection Suitable for collecting particulates from air sampling for subsequent inorganic analysis.
• Buchner Funnel and Pressure Filtration The 185 mm format handles large-volume filtrations in Buchner funnels and under applied pressure.