Exel Hypodermic Needles, 20 Gauge x 1", Polypropylene Hub, Sterile, for Laboratory Use, 100/pk 9138-Liquid This Certified Reference Material at

This Certified Reference Material at a concentration of 10 µg/mL in Toluene is composed of a single analyte

It is supplied as 1 Set and should be stored refrigerated at 0-5 °C

This Certified Reference Material of varied concentration by weight is composed of 3 analytes

This Certified Reference Material at a concentration of 1 mg/mL in Pyridine is composed of a single analyte

This Certified Reference Material of varied concentration in 2-5% Nitric Acid is composed of 5 analytes

Exel Hypodermic Needles, 20 Gauge x 1", Polypropylene Hub, Sterile, for Laboratory Use, 100/pk 9138-Liquid This Certified Reference Material atSuperior quality at an affordable price. Made of regular wall surgical stainless steel with polypropylene hub. They are available in a wide range of gauge and length combinations. FDA registered, CE Mark, ISO certified.