Hydrion Buffer Chemvelopes, Powdered ingredients make precision buffers: ±0.02pH at 25°C, Pack of 5

Details

In capsules or packets (Chemvelopes)Dissolve in distilled water: 100mL for capsules, 500mL for packetsDirectly traceble to NIST standardsStandard Capsules come in vials of 10, five vials per pack. Tri-Chek Capsule Set includes one vial of 10 capsules each for pH 4, 7, and 10 buffersTri-Chek Chemvelope Set includes three pouches each for pH 4 and 10, four pouches for pH 7Tri-Chek sets also include dispensing dropper bottle of Color Key/Buffer Preservative; add to buffer to inhibit mold and to color-code solution: red-orange for pH 4, green for pH 7, blue for pH 10