PH儀緩沖劑|PH緩沖液|PH校正液|PH標(biāo)定液TK-9469/TK-9470
詳細(xì)參數(shù):
TK-9469:試劑系列值4.01 6.86 9.18
TK-9470:試劑系列值4.01 7.00 10.01