Oakton 3000 ppm Salinity Pouch WD-35653-15

- Standardized against NIST traceable reference within +/- 1% accuracy at 25°C
- Individually sealed, vacuum packed for freshness
- 20 pouches per box with each pouch containing 20ml of ready-to-use buffer solution
- Ideal for field use and handy for on-the-spot calibration purpose