Double Convex Lens, Highly polished, optically true lens is excellent for physics classroom demonstrations in optics and light refraction, with ground edges, great for physics classrooms, with highest grade, Size: 200 mm focal length, Lens measures 2in diameter, 0.2 weight
Double Convex Lens, Highly polished, optically true lens is excellent for physics classroom demonstrations in optics and light refraction, with ground edges, great for physics classrooms, with highest grade, Size: 200mm focal length, Lens measures 3in diameter, 0.2 weight
Double Convex Lens, Highly polished, optically true lens is excellent for physics classroom demonstrations in optics and light refraction, with ground edges, great for physics classrooms, with highest grade, Size: 200 mm focal length, Lens measures 3in diameter, 0.1 weight
Double Convex Lens, Highly polished, optically true lens is excellent for physics classroom demonstrations in optics and light refraction, with ground edges, great for physics classrooms, with highest grade, Size: 250 mm focal length, Lens measures 3in diameter, 0.2 weight
Double Convex round Lens, Material: Glass, designed for physics and educational uses, Because of their educational use design, there may be minor imperfections that do not affect physical function, for educational uses, Size: 100mm focal length, 2in diameter and 8mm thick
Double Convex round Lens, Material: Glass, designed for physics and educational uses, Because of their educational use design, there may be minor imperfections that do not affect physical function, for educational use, Size: 100mm focal length, 2in diameter and 16.5mm thick
Double Convex round Lens, Material: Glass, designed for physics and educational uses, Because of their educational use design, there may be minor imperfections that do not affect physical function, for educational uses, Size: 50mm focal length, 2in diameter and 15.5mm thick
Double Convex round Lens, Material: Glass, designed for physics and educational uses, Because of their educational use design, there may be minor imperfections that do not affect physical function, for educational uses, Size: 150mm focal length, 2in diameter and 8mm thick
Double Convex round Lens, Material: Glass, designed for physics and educational uses, Because of their educational use design, there may be minor imperfections that do not affect physical function, for educational uses, Size: 50mm focal length, 2in diameter and 3.5mm thick
Double Convex round Lens, Material: Glass, designed for physics and educational uses, Because of their educational use design, there may be minor imperfections that do not affect physical function, for educational uses, Size: 200mm focal length, 2in diameter and 5.5mm thick
Double Convex round Lens, Material: Glass, designed for physics and educational uses, Because of their educational use design, there may be minor imperfections that do not affect physical function, for educational uses, Size: 250mm focal length, 50mm diameter and 4mm thick
Double Convex round Lens, Material: Glass, designed for physics and educational uses, Because of their educational use design, there may be minor imperfections that do not affect physical function, for educational uses, Size: 250mm focal length, 2in diameter and 4.5mm thick
Double Graduated Flint Glass Cylinder, White graduations, numbered both upward and downward, With pourout and heavy molded base, Graduation interval: 1 mL, Size: 100ml
Enviro-Safe* black liquid, yellow back glass, teflon* coated, -20/150c, 1 divisions, 305mm length, total immersion, 1c accuracy, 1.5c above 105c, includes statement of accuracy traceable to NIST and DKD/PTB and serial number
Enviro-Safe* black liquid, yellow back glass, teflon* coated, 20/230f, 2 divisions, 200mm length, total immersion, 2f accuracy, includes statement of accuracy traceable to NIST and DKD/PTB and serial number
Enviro-Safe* black liquid, yellow back glass, teflon* coated, -10/150c, 1 divisions, 200mm length, 50mm immersion, 1c accuracy, 1.5c above 105c, includes statement of accuracy traceable to NIST and DKD/PTB and serial number
Enviro-Safe* black liquid, yellow back glass, teflon* coated, -20/110c, 1 divisions, 305mm length, 76mm immersion, 1c accuracy, includes statement of accuracy traceable to NIST and DKD/PTB and serial number
Enviro-Safe* black liquid, yellow back glass, teflon* coated, 0/300f, 2 divisions, 305mm length, total immersion, 2f accuracy, 3f above 221f, includes statement of accuracy traceable to NIST and DKD/PTB and serial number
Enviro-Safe* black liquid, yellow back glass, teflon* coated, 20/300f, 2 divisions, 200mm length, 50mm immersion, 2f accuracy, includes statement of accuracy traceable to NIST and DKD/PTB and serial number
Enviro-Safe* black liquid, yellow back glass, teflon* coated, -20/150c, 1 divisions, 305mm length, 76mm immersion, 1c accuracy, 1.5c above 105c, includes statement of accuracy traceable to NIST and DKD/PTB and serial number
Enviro-Safe* black liquid, yellow back glass, teflon* coated, 0/230f, 2 divisions, 305mm length, 76mm immersion, 2f accuracy, includes statement of accuracy traceable to NIST and DKD/PTB and serial number