HI70703L is a premium quality 100 mg/L fluoride standard solution. 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.
- 100 mg/L F- fluoride standard solution
- Air tight bottle with tamper-proof seal to ensure quality
- Lot number and expiration date printed on each label