Qualitative Filter Paper Ashless

GVS filter papers are the standard for laboratory filtration.

Using the highest quality material, the GVS filter papers have an enhanced mechanical strengths, quality level, and reliability.

These filter papers are used for qualitative analysis. Qualitative filters are made of refined pulp and pure cotton linters with an alpha-cellulose content of nearly 100%, which gives them a number of diverse filtration properties. The ash content of less than 0,06% is not reduced by post-treatment.

Product Details

Properties GVS provides a wide range of solution for all application needs:
GRADE 01 – Medium filtration.
The most widely used filter paper. Medium retention and flow rate. This grade covers a wide range of laboratory applications and is frequently used for clarifying liquids. Traditionally this grade is used in qualitative analytical separations for routine laboratory work as well as rapid filtration of fine precipitates such as lead sulphate, calcium oxalate (hot) and calcium carbonate. In agriculture, it is used for soil analysis and seed testing procedures. In the food industry, Grade 01 is used for numerous routine techniques to separate solid foodstuffs from associated liquid or extracting liquid.
GRADE 02 – Medium-slow filtration
GVS provides a wide range of solution for all application needs:
Slightly more retentive and absorbent than Grade 01 and therefore with a moderate to slow filtration speed. In addition to general filtration GRADE 02 is used for monitoring specific contaminants in the atmosphere, filtration of fine precipitates, soil testing, it is often used as a folded filter in an analytical funnel.
GRADE 03- Medium-slow filtration (thick)
Medium to low rate of filtration with double the thickness comparing with GRADE 01. Fine particle retention and excellent loading capacity. The extra thickness gives increased wet strength and allows a higher solute loading. Preferably used for liquids hard to clarify, essences, oils, tinctures, particularly useful for use in Büchner-funnels.
GRADE 04- Very fast filtration
Very high rate of filtration with excellent retention of coarse precipitates such as metal hydroxides and sulphides or gelatinous substances. Preferably used as rapid filter for various organic metal precipitates, routine cleanup of biological fluids, food industry analysis, air pollution monitoring (high rates and the fine particles collection is not critical).
GRADE 05- Very slow filtration
Lowest rate of filtration and maximum degree of fine particle filtration or retention. Preferably used as a clarifying filter for cloudy suspensions and water and soil analysis. Particularly used in difficult filtration conditions and extra fine-grained precipitates such as barium sulphate, cupreous oxide, often specified for clarification of wine.
Characteristic GRADE 01 retention range 7µm-11µm, thickness 160µm-190µm, weight 84g/m²
GRADE 02 retention range 5µm-8µm, thickness 190µm, weight 97g/m²
GRADE 03 retention range 5µm-7µm, thickness 320µm, weight 200g/m²
GRADE 04 retention range 12µm-15µm, thickness 190µm-230µm, weight 84g/m²
GRADE 05 retention range 1µm-2µm, thickness 170µm, weight 80g/m²
Application GRADE 01: Filtration of a wide range of routine laboratory applications for medium retention; Filtration of fine precipitates such as lead sulphate, calcium oxalate, calcium carbonate and other metal sulphates; Soil analysis and seed testing; Food analysis; Education ; Used in the beer and malt control quality production according to EBC.
GRADE 02: Monitoring specific contaminants in the atmosphere; Filtration of fine precipitates such as lead dioxide, calcium fluoride, nickel sulphide and zinc sulphide; Soil analysis
GRADE 03: Particularly useful for use in Büchner funnels; Preferably used for liquids hard to clarify, essences, oils and tinctures
GRADE 04: Coarse and gelatinous precipitates such as iron hydroxide, aluminium hydroxide and chromium hydroxide ; Silica determination in steel and iron analysis ; Food analysis ; Monitoring of air pollution when the collection of fine particles is not critical ; Routine clean-up of biological fluids or organic extracts
GRADE 05: Filtration in very difficult conditions ; Filtration for extra fine-grained precipitates such as barium sulphate, cupreous oxide often specified used for clarification of wine
Size/ SKU/ Item Code FP042DME01QALC01 Filter Paper, Disk, 42mm, Low Ash-Medium, Grade 01, 100/PK

FP042DMS02QALC01 Filter Paper, Disk, 42mm, Low Ash-Medium Slow, Grade 02, 100/PK

FP042DMS03QLTC01 Filter Paper, Disk, 42mm, Low Ash-Medium Slow-Thick, Grade 03, 100/PK

FP042DXF04QALC01 Filter Paper, Disk, 42mm, Low Ash-Very Fast, Grade 04, 100/PK

FP042DXS05QALC01 Filter Paper, Disk, 42mm, Low Ash-Very Slow, Grade 05, 100/PK

FP047DME01QALC01 Filter Paper, Disk, 47mm, Low Ash-Medium, Grade 01, 100/PK

FP047DMS02QALC01 Filter Paper, Disk, 47mm, Low Ash-Medium Slow, Grade 02, 100/PK

FP047DMS03QLTC01Filter Paper, Disk, 47mm, Low Ash-Medium Slow-Thick, Grade 03, 100/PK

FP047DXF04QALC01 Filter Paper, Disk, 47mm, Low Ash-Very Fast, Grade 04, 100/PK

FP047DXS05QALC01 Filter Paper, Disk, 42mm, Low Ash-Very Slow, Grade 05, 100/PK

FP055DME01QALC01 Filter Paper, Disk, 47mm, Low Ash-Medium, Grade 01, 100/PK

FP055DMS02QALC01 Filter Paper, Disk, 55mm, Low Ash-Medium Slow, Grade 02, 100/PK

FP055DMS03QLTC01 Filter Paper, Disk, 55mm, Low Ash-Medium Slow-Thick, Grade 03, 100/PK

FP055DXF04QALC01 Filter Paper, Disk, 55mm, Low Ash-Very Fast, Grade 04, 100/PK

FP055DXS05QALC01 Filter Paper, Disk, 55mm, Low Ash-Very Slow, Grade 05, 100/PK

FP070DME01QALC01 Filter Paper, Disk, 70mm, Low Ash-Medium, Grade 01, 100/PK

FP070DMS02QALC01 Filter Paper, Disk, 70mm, Low Ash-Medium Slow, Grade 02, 100/PK

FP070DMS03QLTC01 Filter Paper, Disk, 70mm, Low Ash-Medium Slow-Thick, Grade 03, 100/PK

FP070DXF04QALC01 Filter Paper, Disk, 70mm, Low Ash-Very Fast, Grade 04, 100/PK

FP070DXS05QALC01 Filter Paper, Disk, 70mm, Low Ash-Very Slow, Grade 05, 100/PK

FP090DME01QALC01 Filter Paper, Disk, 90mm, Low Ash-Medium, Grade 01, 100/PK

FP090DMS02QALC01 Filter Paper, Disk, 90mm, Low Ash-Medium Slow, Grade 02, 100/PK

FP090DMS03QLTC01 Filter Paper, Disk, 90mm, Low Ash-Medium Slow-Thick, Grade 03, 100/PK

FP090DXF04QALC01 Filter Paper, Disk, 90mm, Low Ash-Very Fast, Grade 04, 100/PK

FP090DXS05QALC01 Filter Paper, Disk, 90mm, Low Ash-Very Slow, Grade 05, 100/PK

FP110DME01QALC01 Filter Paper, Disk, 110mm, Low Ash-Medium, Grade 01, 100/PK

FP110DMS02QALC01 Filter Paper, Disk, 110mm, Low Ash-Medium Slow, Grade 02, 100/PK

FP110DMS03QLTC01 Filter Paper, Disk, 110mm, Low Ash-Medium Slow-Thick, Grade 03, 100/PK

FP110DXF04QALC01 Filter Paper, Disk, 110mm, Low Ash-Very Fast, Grade 04, 100/PK

FP110DXS05QALC01 Filter Paper, Disk, 110mm, Low Ash-Very Slow, Grade 05, 100/PK

FP125DME01QALC01 Filter Paper, Disk, 125mm, Low Ash-Medium, Grade 01, 100/PK

FP125DMS02QALC01 Filter Paper, Disk, 125mm, Low Ash-Medium Slow, Grade 02, 100/PK

FP125DMS03QLTC01 Filter Paper, Disk, 125mm, Low Ash-Medium Slow-Thick, Grade 03, 100/PK

FP125DXF04QALC01 Filter Paper, Disk, 125mm, Low Ash-Very Fast, Grade 04, 100/PK

FP125DXS05QALC01 Filter Paper, Disk, 125mm, Low Ash-Very Slow, Grade 05, 100/PK

FP150DME01QALC01 Filter Paper, Disk, 150mm, Low Ash-Medium, Grade 01, 100/PK

FP150DMS02QALC01 Filter Paper, Disk, 150mm, Low Ash-Medium Slow, Grade 02, 100/PK

FP185DMS03QLTC01 Filter Paper, Disk, 185mm, Low Ash-Medium, Grade 01, 100/PK

FP185DXF04QALC01 Filter Paper, Disk, 185mm, Low Ash-Medium Slow, Grade 02, 100/PK

FP185DXS05QALC01 Filter Paper, Disk, 185mm, Low Ash-Medium Slow-Thick, Grade 03, 100/PK

FP240DME01QALC01 Filter Paper, Disk, 185mm, Low Ash-Very Fast, Grade 04, 100/PK

FP240DMS02QALC01 Filter Paper, Disk, 185mm, Low Ash-Very Slow, Grade 05, 100/PK

FP240DMS03QLTC01 Filter Paper, Disk, 240mm, Low Ash-Medium, Grade 01, 100/PK

FP240DXF04QALC01 Filter Paper, Disk, 240mm, Low Ash-Medium Slow, Grade 02, 100/PK

FP240DXS05QALC01 Filter Paper, Disk, 240mm, Low Ash-Medium Slow-Thick, Grade 03, 100/PK

FP320DME01QALC01 Filter Paper, Disk, 240mm, Low Ash-Very Fast, Grade 04, 100/PK

FP320DMS02QALC01 Filter Paper, Disk, 240mm, Low Ash-Very Slow, Grade 05, 100/PK

FP320DMS03QLTC01 Filter Paper, Disk, 320mm, Low Ash-Medium Slow-Thick, Grade 03, 100/PK

FP320DXF04QALC01 Filter Paper, Disk, 320mm, Low Ash-Very Fast, Grade 04, 100/PK

FP320DXS05QALC01 Filter Paper, Disk, 320mm, Low Ash-Very Slow, Grade 05, 100/PK

FP037DME01QALC01 Filter Paper, Disk, 37mm, Low Ash-Medium, Grade 01, 100/PK

FP037DMS03QALC01 Filter Paper, Disk, 37mm, Low Ash-Medium Slow-Thick, Grade 03, 100/PK

FP037DXF04QALC01 Filter Paper, Disk, 37mm, Low Ash-Very Fast, Grade 04, 100/PK

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