Class B Beaded Rim Volumetric Flask, 25mL, Single Graduation, Borosilicate Glass Lab Equipment_Lab Burners 5% ±1 digit accuracy across

5% ±1 digit accuracy across a 200mV to 1000V DC range distinguishes this handheld meter

dropping into the Worcester Circuit Board Kit for telegraph work

8mm rod attachment and a centered 50mm aperture together hold a lens square against an optical-bench rail for repeatable refraction

Hundred-milliamp DC scale on a 315x115mm laminated panel with sealed shunt

Class B Beaded Rim Volumetric Flask, 25mL, Single Graduation, Borosilicate Glass Lab Equipment_Lab Burners 5% ±1 digit accuracy acrossClass B volumetric flask in borosilicate 3. 3 glass holds 25mL with beaded rim and single graduation for general purpose volumetric measurement.