Safety Goggles - Indirect Vent Type_Tall Form Five-ohm metal-film resistance unit at

Five-ohm metal-film resistance unit at plus-or-minus 1% accuracy with a 1

the slim half-disc geometry letting beams enter the curved face along its radius for clean refraction-angle and TIR observations

Food-grade peroxide test strips in a 50-strip vial calibrated for the 3 to 10 percent concentration range

the longest focal value in the 50mm convex line giving the gentlest divergence and largest virtual image

and 400 ppm

Safety Goggles - Indirect Vent Type_Tall Form Five-ohm metal-film resistance unit atGeneral purpose googles with side ventilators. General purpose googles with side ventilators. Designed to protect eyes from chemical splash and dust.