Low-Level Peroxide Test Strips, 0-100ppm, 50-Vial Capacity_500mL this Wimshurst generator builds a

this Wimshurst generator builds a visible high-voltage spark

designed for image-formation and focal-length investigation

Triple-parallel plastic pulley with three 50mm wheels on a steel frame with end hooks

Greatly magnified transverse dicot stem model on a mounted base exposes vascular bundle arrangement and primary tissue layers for advanced botany teaching

Low-Level Peroxide Test Strips, 0-100ppm, 50-Vial Capacity_500mL this Wimshurst generator builds aLow level peroxide test strips in a 50 strip vial calibrated at 0, 1, 3, 10, 50, and 100 ppm, supporting semi quantitative hydroperoxide and ether peroxide monitoring in the lab.