HI4010-10 is a 500 mL bottle of premium quality 10 ppm (mg/L) fluoride standard solution that is premixed with TISAB II ionic strength adjuster.  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.

• 10 ppm (mg/L) fluoride standard with TISAB II
• Air tight bottle with tamper-proof seal
• Lot number and expiration date printed on each label