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Whatman 无黏合剂玻璃纤维滤纸 Grade GF/A
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品牌 : Whatman
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产品分类：滤纸
The filters feature fine particle retention for a range of liquid and air filtration applications. These have a nominal particle retention of 1.6µm at 98% efficiency and are suited for a variety of applications involving large sample volumes such as:
Water and air pollution monitoring and wastewater filtering
Foodstuff analysis
Filtering of algae and bacteria cultures
Protein filtration
Radioimmunoassay of weak β emitters
Gravimetric determination of airborne particulates
Grade GF/A binder-free Whatman glass microfiber filters are available in a wide range of sizes in circles and sheets.
PRODUCT SPECIFICATIONS
| Parameter | Grade GF/A Fine Retention Filter |
|---|---|
| Application | Used for high-efficiency general purpose laboratory filtration, including water pollution monitoring of effluents, for filtration of water, foodstuff analyses, protein filtration, and radioimmunoassay of weak β emitters. |
| Grade | Grade GF/A |
| Nominal air flow rate | 4.3 s/100 ml/in² |
| Nominal thickness | 260 |
| Basis Weight | 53 g/m² |
| Nominal basis weight | 53 g/m² |
| Max recommended temperature | 550 °C |
| Material | Borosilicate glass |
| Format | Circles |
| Binder type | Binder Free |
| Typical Particle Retention in Liquid 1 | 1.6 µm |
| Typical water flow rate 2 | 143 ml/min |
| Dimensions ( mm ) | 13 / 21 / 24 / 25 / 27 / 37 / 42 / 47 / 50 / 55 / 60 / 70 / 81 / 90 / 110 / 125 / 150 / 240 / 8*10 in / 460*570 |
| Pack size | 100 pieces ( 25 pieces：1826-061 / 1826-915 ) |
1：Particle retention rating at 98% efficiency.
2：Normalised for 9 cm diameter. Measured under gravity for comparative purposes.
2：Normalised for 9 cm diameter. Measured under gravity for comparative purposes.
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