Potassium

光学助熔剂 128, Spectroflux 128

起始校准校准(ICV) 标准试剂盒, Initial Calibration Verification(ICV) Standards Kit

多元素QC-21检测标准溶液, Multi-Element QC-21 Check Standard Solution

TCLP标准溶液2, TCLP Standard Solution 2

氯化钠晶体光学长方体块, Sodium chloride crystal optic rectangle

氟化钙晶体光学盘, Calcium fluoride crystal optic disc

溴化钾晶体光学盘, Potassium bromide crystal optic disc

氯化银晶体光学片, Silver chloride crystal optic disc

氯化钠晶体光学盘, Sodium chloride crystal optic disc

氟化钙晶体光学长方体, Calcium fluoride crystal optic rectangle