Wilmad-LabGlass 721-PQ-7 5 mm Medium Wall Suprasil EPR Tube, 7"

Wilmad-LabGlass, 721-PQ-7, 5 mm Medium Wall Precision Suprasil EPR Sample Tube, 7"

Features:

• Precision brand EPR tubes hold 10-15 times tighter tolerance on the inner diameter, and >5 times smaller camber and concentricity over Economy Brand tube.
• Precision tubes are recommended for cw-experiments that require a constant filling factor or reproducibility on sample volume in the cavity.
• Clear Fused Quartz (CFQ) is purified from naturally occurring quartz so the existence of certain material radicals from mining is inevitable.
• Due to technological advancements the sensitivity of EPR has gradually increased.
• The direct result is that certain high Q cavities will pick up the signal from these impurities.