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Johnson® High Precise(0.2~0.5 pH-divi.) Color Pad Polypropylene pH Comparator, “Non-Bleed” System<br>Special Use for the Accurate Test of Short-ranges of pH 0.2~0.5 Intervals, 8 items in Overall-range pH 1.0~10.0<br>초정밀 pH 측정용 칼라 Pad PP 콤퍼레이터, “0.2 ~ 0.5 Johnson® High Precise(0.2~0.5 pH-divi.) Color Pad Polypropylene pH Comparator, “Non-Bleed” System<br>Special Use for the Accurate Test of Short-ranges of pH 0.2~0.5 Intervals, 8 items in Overall-range pH 1.0~10.0<br>초정밀 pH 측정용 칼라 Pad PP 콤퍼레이터, “0.2 ~ 0.5 Johnson® High Precise(0.2~0.5 pH-divi.) Color Pad Polypropylene pH Comparator, “Non-Bleed” System<br>Special Use for the Accurate Test of Short-ranges of pH 0.2~0.5 Intervals, 8 items in Overall-range pH 1.0~10.0<br>초정밀 pH 측정용 칼라 Pad PP 콤퍼레이터, “0.2 ~ 0.5 Johnson® High Precise(0.2~0.5 pH-divi.) Color Pad Polypropylene pH Comparator, “Non-Bleed” System<br>Special Use for the Accurate Test of Short-ranges of pH 0.2~0.5 Intervals, 8 items in Overall-range pH 1.0~10.0<br>초정밀 pH 측정용 칼라 Pad PP 콤퍼레이터, “0.2 ~ 0.5 Johnson® High Precise(0.2~0.5 pH-divi.) Color Pad Polypropylene pH Comparator, “Non-Bleed” System<br>Special Use for the Accurate Test of Short-ranges of pH 0.2~0.5 Intervals, 8 items in Overall-range pH 1.0~10.0<br>초정밀 pH 측정용 칼라 Pad PP 콤퍼레이터, “0.2 ~ 0.5