HI9829-14/15 is for premium quality 10 ppm and 100 ppm (mg/L) Nitrate (as N) standard for calibration. These standards are used to calibrate the HI7609829-12 Nitrate ISE. Each sachet has the lot number and expiration date stamped on it. The sachet is made of light block and air-tight foil ensuring freshness each time one is used. Hanna's line of calibration standards have been formulated to have an expiration of 5 years from the date of manufacture for an unopened sachet. The HI9829-14/15 is for 10 sachets each of the 10 ppm and 100 ppm chloride calibration standard. Each sachet contains approximately 20 mL of buffer.
- Pre-mixed to exact standard value
- pH and ionic strength stabilized
- Lot number and expiration date on each sachet
