HI4005-03 is a 500 mL bottle of premium quality 1000 mg/L (ppm) carbon dioxide standard solution (as CaCO3).Hanna ISE standards have the lot number and expiration date clearly marked on the label. Bottles are air tight with a tamper-proof seal to ensure the quality of the standard solution. Hanna's line of standards have been specially formulated to have an expiration of 5 years from the date of manufacture for an unopened bottle.1000 ppm (mg/L) carbon dioxide standardAir tight bottle with tamper-proof sealLot number and expiration date printed on each label
