US$ 17.95
90mm 3-element uni-focal lens
15% of reading
delivering repeated sterile drying
Stoppered U-form absorption tube constructed from borosilicate glass supports calcium chloride drying and analytical chemistry procedures
PVC Lab Thermometer, -40 to 50°C Prepared Slides_Botany 90mm 3-element uni-focal lensSpirit filled glass thermometer on a white PVC backing, sized for room temperature and refrigerator monitoring in classrooms and field use settings.
US$ 17.95
US$ 17.95
US$ 17.95
US$ 13.30