Writing area Specified for mechanical freezing or vapor-phase of liquid nitrogen External screw cap also lessens risk of contamination due to handling Sterile 12.5 mm diameter tubes (13 mm cap) with conical or round bottom. NOTE: Not recommended for liqiud nitrogen unless sealed…

Specified for mechanical freezing or vapor-phase of liquid nitrogen External screw cap also lessens risk of contamination due to handling Sterile 12.5 mm diameter tubes (13 mm cap) with conical or round bottom. All externally threaded vials, 5151N02 to R60, are not recommended for…