HI9829-14 is a premium quality 10 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.