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National Standards for Grade Levels 6-14


Calibrate pH meters with our color coded buffer solution set. Includes 60 ml bottles of each buffer; pH 4.0. pH 7.0, and pH 10.0 and electrode cleaner. All buffers are ±0.01 at 77ÆF (25ÆC). 

Buffer Solution Set, Small

  • Sh. wt. 1lb , DIM 6” x 9” x 2”

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