Link Gulf B1183-04
Hydrion Buffer Capsules pH 4.00 5 vials of 10 capsules/vial, 50 capsules per carton
Micro Essential 270-4.00 / VWR 34175-129 / Spectrum 242-97800
Hydrion Buffer Capsules are perfect for quick and easy pH meter calibration.
When mixed with distilled or de-ionized water, a Hydrion Buffer Capsule will accurately produce 100 ml. of solution at pH 4.00
Hydrion Buffers are free flowing soluble powders that prepare clear solutions in minutes.
Each carton contains 5 vials, with 50 capsules per carton. Each capsule produces 100ml.of solution.