Hydrion Tri-Chek Buffer Set – Chemvelope 4-7-10

Hydrion Tri-Chek Buffer Set provides pre-weighed buffer salts in Chemvelope packages for pH 4, 7, and 10. Empty the contents of a pre-weighed Buffer Salt foil package into 500 mL of de-ionized or distilled water. All Hydrion Buffer Salts are directly traceable to NIST Standards and certified to ±0.02 pH units at 25°C. Prepared solutions last for three weeks at room temperature in clean airtight bottles; with Hydrion Buffer Preservative, prepared solutions can last up to three months. Unprepared buffer salts have a shelf life of five years.