HI9829-15 is a premium quality 100 ppm Nitrate Standard (as N) calibration standard. It is produced in accordance with ISO 3696/BS3978 standards using high purity salts, deionized water, certified weight-checked balances, and Class A glassware in a temperature controlled environment monitored with certified thermometers.
Convenience of individual packaging
- Ideal for field use due to portability
- Every sachet is as fresh as the day it was packaged
- pH and ionic strength stabilized
Each sachet marked with lot number and expiration date.
- Hanna buffers are specially formulated to have an expiration of 5 years from manufacture for an unopened sachet.