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Calibration: pH calibration points at pH 7
an adjustable slide
The transparent door makes it easy for you to see when you need to refill the eye wash
these cones are flexible and resistant
along with programmable backlight options
Case of 12 samples of elements found in the Periodic Table Calibration: pH calibration points atCase of 12 samples of elements found in the Periodic Table. Includes: 1. Sulfur, 2. Carbon, 3. Copper, 4. Aluminium, 5. Zinc, 6. Iron, 7. Iz, 8. Lead, 9. extreme aspherical, 10. Magnesium, 11. Calcium, 12. Benzene. Symbols: (S), (C), (Cu), (Al), (Zn), (Fe), (Iz), (Pb), (Xa), (Mg), (Ca), [C6H6). Designed for use in professional laboratories but is an ideal choice for science classrooms and household use. If you need custom order with different sizes
US$ 24.95
US$ 32.95
US$ 56.95
US$ 59.95
