Exel Hypodermic Needles, 21 Gauge x 1", Polypropylene Hub, Sterile, for Laboratory Use, 100/pk 10SYRDISC This Certified Reference Material at

This Certified Reference Material at a concentration of 10 µg/mL in 5% Nitric acid is composed of a single analyte

This Certified Reference Material at a concentration of 10000 µg/mL in 10% Hydrochloric acid is composed of a single analyte

A lubricated synthetic rubber tipped piston allows for smooth draw while a positive stop prevents accidental pullout

It is supplied as a set of 6 x 5 mL and should be stored at an ambient temperature of greater than 5 °C

Exel Hypodermic Needles, 21 Gauge x 1", Polypropylene Hub, Sterile, for Laboratory Use, 100/pk 10SYRDISC 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.