Advantec提供含灰量低於0.01%的無灰定量濾紙，因為Advantec了解，在礦石樣品的金屬含量分析中，樣品的準備是一個關鍵步驟。Advantec一系列不同性能特色的產品，具備能夠成功回收樣品元素的規格，例如顆粒截留率、過濾速度和金屬含量。
Advantec無灰定量濾紙是由α 棉纖維素製成，經過雙酸洗後，再用超純水清洗中和。這些濾紙是在嚴格的品質控制標準下製造，Advantec以最嚴謹的生產標準，確保產品性能的品質及一致性，您可以信賴Advantec精確的檢測結果。
>>>應用:
| No.3 | No.5A | No.5B | No.5C | No.6 | No.7 |
| use in analysis of soils, fertilizers, cement, and minerals in mining and steel industries | retain coarse and gelatinous precipitates such as alminum or iron hydroxide; determine silica content in steel. | retain medium particles such as CaCO3, PbSO4, CaCO4, MnCo3, ZnCo3, ZnS, AgCl | collect fine precipitates such as SrSO4, BaSO4, HgCrO4; gravimetric analysis | retain trace and precious metals | lowest ash weight for retaining medium particles for precise gravimetric analysis |
>>>規格:
| Grade | Nominal retention (μm) |
Flow Time (sec.) |
Thickness (mm) |
Weight (g/㎡) |
Flow Characteristic |
Whatman Cross Ref. |
| No.3 | 5 (Medium) |
130 | 0.23 | 113 | Fast | 43 |
| No.5A | 7 (Coarse) |
60 | 0.22 | 97 | Fast | 41 |
| No.5B | 4 (Medium) |
195 | 0.21 | 108 | Medium | 40 |
| No.5C | 1 (Fine) |
570 | 0.22 | 118 | Slow | 42 or 44 |
| No.6 | 3 Medium-Fine) |
300 | 0.20 | 103 | Medium | 42 |
| No.7 | 4 (Medium) |
200 | 0.18 | 87 | Medium | - |
>>>訂購資訊:
1. Available in standard diameters (mm): 42.5, 55, 70, 90, 110, 125, 150, 185, 240
2. Quantity: 100 filters/pack.
3. Other grades and sizes available.
>>>產品編號:
Order by specifying grade followed by diameter. Examples: No.3 125mm, N0.5B 110mm
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