Orion pH Buffer Bottles, Perform accurate, reproducible pH calibrations with these color-coded buffer bottles, Pack of 5

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Perform accurate, reproducible pH calibrations with color-coded Thermo Scientific™ Orion™ pH Buffer Bottles. pH 4.01, 5.00, 7.00 and 10.01 buffers are color coded for ease of use. All Orion pH buffers are traceable to NIST™ standard reference materials.All Orion pH Buffer Bottles have pH/temperature tables printed on the labels for accurate calibrations and NIST traceability. Manufactured under ISO 9000 quality standards.Buffer Color Codes:pH 4.01 buffer is pinkpH 5.00 buffer is orangepH 7.00 buffer is yellowpH 10.01 buffer is blueThe buffers are available in pint (475mL) bottles, portable five packs of 2 oz. (5 x 60mL) bottles, convenient All-in-One buffer kits, 5 gallon (19L) Cubitainers™ and single-use pouches.