Buffer capsules pH 5.00 - pHydrion. Empty powder from one capsule into 100 ml of distilled water to make a solution buffered to a pH certified at 5.00± 0.02@25°C. Directly traceable to N.B.S. standards.
Micro Essential # 270-5.00.
10 capsules per vial.
Forensics Lab Supply Number 3792705.
Formerly Grau-Hall Corporation dba Grau-Hall Scientific.
Contains Potassium phosphate monobasic (CAS No. 7778-77-0) and Sodium phosphate dibasic (CAS No. 7558-79-4).