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| Comparator system 2000, water test discs and reagent tablets A large selection of water test discs are available for colourimetric chemical analyses and colour classification. Each test disc is equipped with fade-free, non porous glass filters, the quality of which is not impaired by UV light or other environmental influences. Test discs whose code begins with *N*, are designed for use in the Nessleriser 2150. Test discs which start with the letter *C* are designed for use in the Nessleriser 2250. All other test discs are designed for use in the comparator 2000+ . The most popular water test discs feature in the table below. Other test discs are available on request. Product Specification: For: Chlorine Disc: NDPB Measuring range: 0.01 to 0.10mg / l | |
| Catalogue Number | 9.947 021 |
| Manufacturer | Aqualytic |
| Manufacturer P/n | 283450 |
| VWR Ref | 633-0193 |
| For | Chlorine |
| Type | NDPB |
| PK | 1 |
| Measuring range | 0,01 ... 0,10 mg/l |
| VWR: | 633-0193 |