We do not offer international shipping to countries within the European Union
We can only ship non-hazardous products to Rest of World
Compare all Pack Sizes
We can only ship to Northern Ireland where a Royal Mail postal option has been chosen at checkout.
We can only ship to the following postcodes where a Royal Mail postal option has been chosen at checkout.
AB, DD, DG3, DG4, DG6 - DG9, EH, FK, G, HS, IM, IV, KA, KW, KY, ML, PA, PH, PO30 - PO41, TD, TR21 - TR25, ZE
A set of colour coded pH Calibation buffers suitable for calibrating any pH Meter where a two point calibration is required.
Yellow: pH 4.0
Red: pH 7.0
Accuracy Range : +/- 0.01 pH @ 25 deg C
We can also accept a bank transfer (UK Only)