Hanna Instruments 30 g/L Sodium Chloride Standard Solution

HI7081L is a 500 mL bottle of premium quality 30 g/L sodium chloride (NaCl) standard solution for the calibration of salinity meters and sodium ISEs.
Hanna calibration solutions have the lot number and expiration date clearly marked on the label and are air tight with a tamper-proof seal to ensure the quality of the solution. Hanna’s line of calibration solutions have been specially formulated to have an expiration of 5 years from the date of manufacture for an unopened bottle.
30 g/L NaCl standard 
Air tight bottle with tamper-proof seal to ensure quality
Lot number and expiration date printed on each label