HI4012-21 is a 0.1M standard sulfate solution used for titration measurements with the lead/sulfate solid state ion selective electrode (ISE). This solution is necessary to standardize lead perchlorate solutions for sulfate titrations. Hanna ISE standard solutions are manufactured with high purity chemicals and bottled in our own state-of-the-art facility.

Air tight bottle with tamper-proof seal

• Ensures quality and freshness of solution

Each bottle marked with lot number and expiration date

• Hanna ISE standard solutions are specially formulated to have an expiration of 5 years from manufacture for an unopened bottle