Flairform Ph Buffer 7 250ml (24 In Box)

pH meters must be regularly ‘calibrated’ (i.e. adjusted for accuracy) using standard pH buffer solutions which are made to an internationally agreed recipe. Flairform’s buffers are formulated with NIST specified ingredients. Stabilized to resist algae or growth formation: Growths’ can contaminate pH electrodes which in turn affects the “slope” value beyond the software’s ability to compensate.