Specifications:
| Application | Filtration, Analytical Chemistry |
| Storage Temperature | Room Temperature |
| Product Type | Filter Papers |
| Product Brand | VWR |
| Product Grade | Analytical grade |
VWR® Quantitative Filter Papers are high-purity, ashless filtration media specifically designed for gravimetric and quantitative analytical applications requiring precise and reproducible results. Manufactured from refined cellulose fibers under stringent quality control, these filter papers exhibit extremely low ash content, ensuring minimal residue after ignition and making them ideal for analytical chemistry workflows.
Engineered for high retention efficiency and consistent flow characteristics, VWR quantitative grades support accurate determination of inorganic compounds, trace elements, and insoluble residues across pharmaceutical, food, environmental, and industrial laboratories.
With a range of grades tailored for fine, medium, and coarse precipitates, these filter papers provide reliable performance in demanding analytical procedures.
Key Features
-
Ashless (Low Residue) Performance
Suitable for gravimetric analysis where minimal ash content is critical. -
High-Purity Cellulose Composition
Ensures consistent filtration and chemical compatibility. -
Excellent Particle Retention
Designed for precise separation of fine, medium, and gelatinous precipitates. -
Reproducible Analytical Results
Supports quantitative determination of analytes with high accuracy. -
Wide Range of Grades
Optimized for specific applications from very fine precipitates to coarse materials. -
Uniform Structure and Strength
Maintains integrity during filtration and handling.
Grade Selection Guide
| Grade | Filtration Speed | Retention Level | Typical Applications |
|---|---|---|---|
| 424 | Medium | Medium | Sulphides, food analysis, dairy sand content, pulp whiteness |
| 434 | Slow | Fine | Very fine precipitates, oils, greases, trace impurity analysis |
| 454 | Fast | Coarse/Gelatinous | Zirconium hydroxide, aluminium hydroxide, gelatinous precipitates |
| 474 | Medium | General | Routine quantitative analysis, inorganic precipitates |
Applications
Analytical & Gravimetric Chemistry
- Determination of sulphides and heavy metals
- Quantification of inorganic precipitates
- Gravimetric residue analysis
Food & Dairy Analysis
- Determination of sand content in dairy products
- Analysis of food contaminants
Pharmaceutical & Industrial Testing
- Analysis of impurities in oils, greases, and chemicals
- Filtration of fine and gelatinous precipitates
Pulp & Paper Industry
- Determination of pulp whiteness
- Quality control analysis
Technical Specifications
| Parameter | Specification |
|---|---|
| Material | High-purity cellulose |
| Ash Content | Very low (ashless grade) |
| Filtration Type | Quantitative |
| Format | Circular filter papers |
| Retention | Grade dependent (fine to coarse) |
| Applications | Gravimetric and analytical chemistry |
Ordering Information
| Catalog No. | Grade | Size | Purpose / Use |
|---|---|---|---|
| 516-0264 | 424 | 70 mm | Filtration of sulphides, food analysis, dairy sand content determination |
| 516-0265 | 424 | 90 mm | Filtration of sulphides and routine quantitative analysis |
| 516-0266 | 424 | 110 mm | Medium retention filtration for analytical chemistry |
| 516-0267 | 424 | 125 mm | General quantitative filtration of inorganic compounds |
| 516-0268 | 424 | 150 mm | Food and dairy testing applications |
| 516-0269 | 424 | 185 mm | Large-scale filtration for sulphides and precipitates |
| 516-0270 | 434 | 70 mm | Fine filtration of very small precipitates |
| 516-0271 | 434 | 90 mm | Analysis of fine precipitates in chemical samples |
| 516-0272 | 434 | 110 mm | Fine filtration for oils, greases, and trace impurities |
| 516-0273 | 434 | 125 mm | Quantitative analysis of very fine particles |
| 516-0274 | 434 | 150 mm | Determination of insoluble impurities in oils and greases |
| 516-0275 | 434 | 185 mm | Large-volume fine filtration applications |
| 516-0847 | 474 | 90 mm | General quantitative analysis of inorganic precipitates |
| 516-0848 | 474 | 110 mm | Routine analytical laboratory filtration |
| 516-0849 | 474 | 125 mm | General-purpose quantitative filtration |
| 516-0850 | 474 | 150 mm | Filtration of aluminium phosphate and related compounds |
| 516-0263 | 474 | 185 mm | Large-scale quantitative filtration |
| 516-0853 | 454 | 90 mm | Filtration of coarse and gelatinous precipitates |
| 516-0854 | 454 | 110 mm | Rapid filtration of metal hydroxides |
| 516-0855 | 454 | 125 mm | Filtration of zirconium and aluminium hydroxides |
| 516-0856 | 454 | 150 mm | Coarse filtration for gelatinous precipitates |
| 516-0857 | 454 | 185 mm | High-volume filtration of bulky precipitates |
Unique Advantages
-
Ideal for Gravimetric Analysis
Ensures accurate quantitative results with minimal ash residue. -
Comprehensive Grade Coverage
Supports a wide range of analytical applications from fine to coarse filtration. -
High Analytical Reliability
Designed for reproducibility in regulated laboratory environments. -
Broad Industry Application
Suitable for food, pharmaceutical, environmental, and industrial testing.
VWR® Quantitative Filter Papers provide a precise and reliable solution for laboratories performing gravimetric and analytical procedures. With their ashless composition, excellent retention characteristics, and broad grade selection, they ensure accurate and reproducible results across a wide range of scientific applications.
- Grade: Grade 424 Grade 434 Grade 474 Grade 454
- Diameter: Ø 90mm Ø 110mm Ø 125mm Ø 150mm Ø 185mm Ø 70 mm
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