Ashless Grade 42 Quantitative Filter Paper
Ashless Grade 42 Quantitative Filter Paper is the world standard for critical gravimetric analysis with the finest particle retention. Typical analytical precipitates include barium sulfate metastannic acid and finely precipitated calcium carbonate.
Key Features
- World standard for critical gravimetric analysis
- Finest particle retention
- Choose from 125mm or 150mm diameter
Grade 42 ashless filter paper is designed for gravimetric determinations requiring low ash content. Medium retention and flow rate balance filtration speed with particle capture. Meets ISO standards for analytical accuracy in quantitative chemical analysis and environmental testing. Sign in to your account or contact your sales rep for organizational pricing.
Frequently asked questions
Why is ashless paper important for gravimetric analysis?
Low ash content ensures accurate final weight measurements by eliminating mineral residues that would skew quantitative results.
What is the difference between Grade 42 and other filter paper grades?
Grade 42 offers medium particle retention and moderate flow rate, balancing filtration speed with accuracy for most analytical applications.
Does this paper meet international standards?
Yes. Grade 42 ashless filter paper meets ISO standards for analytical accuracy in quantitative chemical and environmental analysis.
What applications require ashless filter paper?
Gravimetric analysis, environmental testing, food analysis, chemical assays, and any procedure requiring accurate final weight measurements.
What are the retention characteristics?
Grade 42 provides medium particle retention suitable for fine precipitate filtration in analytical and quantitative testing.
| Item No. | Alt. Part No. | Diameter | Unit of Measure | Your Cost | Purchase |
|---|---|---|---|---|---|
|
Filter Papers Grade 42
3254-59
|
EF43062 | 125mm | Pack of 100 |
$8.82
|
|
|
Filter Papers Grade 42
3254-60
|
EF43063 | 150mm | Pack of 100 |
$10.28
|
