默克二级标准缓冲溶液 邻苯二甲酸氢钾,可直接溯源至NIST和PTB一级SRM pH S =4.00 5 25℃ Certipur (R) 107200 1ST1.07200.0105

默克二级标准缓冲溶液 邻苯二甲酸氢钾,可直接溯源至NIST和PTB一级SRM pH S =4.00 5 25℃ Certipur (R) 107200 1ST1.07200.0105应用部件编号:1.07200.0105