PH-4 | pH 4 Standard - H2O

Inorganic Ventures' pH 4 Standard is a certified reference material set in a water matrix for stability. This standard is Traceable to NIST and manufactured in accordance with Inorganic Ventures' stringent Quality Assurance guidelines.

Expiry Date

Inorganic Venture CRMs are protected by Transpiration Control Technology (TCT) to retain their scientific integrity for up to four years from the date of manufacture. Packaged in a TCT bag, this product is protected for up to three years in the TCT bag and then up to an additional year after the product has been removed from the package.