Disposable glassware culture tube with screw cap finish

Manufactured from 5.1 expansion borosilicate glass conforming to USP Type I and ASTM E438, Type I, Class B requirements, these threaded culture tubes are suitable for a variety of lab settings. Each tube is heat-treated at temperatures exceeding 500° C and immediately packed in a shrink-wrapped cardboard tray, 250 tubes per tray. This process avoids contamination and increases the strength and durability of the glass.
Dimensional tolerances are strictly controlled for a uniform shape, including rounded bottoms and polished tops with smooth edges. Each tube has a chevron-shaped white enamel marking spot. Threaded necks accept a phenolic screw cap, not included. Available in six sizes, from 8 mL to 33 mL.

Type I, Class B 5.1 expansion borosilicate glass
Heat-treated and securely packed to avoid contamination and increase strength
Chevron-shaped marking spot for easy orientation reference

Item Number	Overflow Volume (ml)	O.D. X Length (mm)	Thread Finish	Pack size
DCTSC-13100	8	13 X 100	13 - 415	1000
DCTSC-16100	12	16 X 100	15 - 415	1000
DCTSC-16125	16	16 X 125	15 - 415	1000
DCTSC-16150	20	16 X 150	15 - 415	1000
DCTSC-20125	30	20 X 125	18 - 415	500
DCTSC-20150	33	20 X 150	18 - 415	500

Gasoline & Diesel hydrometer

Gasoline & Diesel hydrometer