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pH 4, 7 or 10 buffer solutions; allow calibration and checking direct from the bottle with minimum wastage (once tipped, solution is trapped in small chamber until disposed of). Available in 500ml bottles.
pH 4, 7 or 10 buffer solutions; allow calibration and checking direct from the bottle with minimum wastage (once tipped, solution is trapped in small chamber until disposed of). Available in 500ml bottles.
