Specifications

STA Borosilicate glass test tube
OD 3 to 315mm
Wall thickness 0.10 - 10 mm
premium quality, durability
competitive price

STA Borosilicate Glass Test Tube  

 

Test tube with round bottom and flat bottom.

Rim: with rim or without rim

Material: borosilicate 3.3 or borosilicate 4.0

Description:

 

1. Premium quality glass tubes are produced from borosilicate glass that provides excellent chemical   resistance and durability. Clear Borosilicate glass test tubes can be used for chemical experiments as well as experiments related to density and other physical properties of liquids.

2. Tubes feature well-rounded bottoms and smooth fire-polished rims.

3. Our Glass Test Tubes are cost-effective solution for diverse chemical applications.

4. Production according to ISO standards or as per your specifications.

5. Standard packaging is shrink wrapped firstly, then put into strong corrugated carton..

 

Use: medical consumables, lab ware, lighting,

 

STA introduces a new line of high quality borosilicate glass test tubes. These tubes offer exceptional quality at great prices. They are neatly packaged in heavy duty boxes of 250 and are shrink wrapped to keep them particle free. The boxes are compact and designed to fit into most test tube dispensers.

 

Material: Borosilicate Glass

Tubes can be used for tissue culture and blood banks

Tubes are chemically inert

Produced in an ISO 9001:2008 certified factory

Made from superior quality borosilicate glass to reduce pH changes and contaminants that are potentially leached from tubes made from soda lime glass

Tubes feature well-rounded bottoms and smooth fire-polished rims

Meets ASTM E890 specification, type 1 requirements

Conforms to USP Type 1 standards

 

Services:

Free samples

Providing technical consultation of vials

Designing suitable drag packing for products.

Providing related qualification documents and accepting customer's audit on site.

Solving the quality matter on production line, providing technical inspection of vials.

Solving customer's complaints in time and make advancement.

 

Physical Property
No.	Physical performance	Numerical Value	Unit
1	Coefficient of mean linear thermal expansion(20°C,300°C)	3.3±0.1	10-6K-1
2	Transformation temperature	525±15	°C
3	Softening point	820±10	°C
4	Working point	1260±20	°C
5	Density at 20°C	2.23±0.02	g/cm3
6	Mean thermal conductivity(20°C-100°C)	1.2	w/m2k
7	Refractive index	0.92	1

 

Main Composition
SiO2	B2O3	Na2O+K2O	Al2O3
81	13	4	2

 

Chemical Property
Hydrolytic resistance at 98°C	ISO719-HGB 1
Hydrolytic resistance at 121°C	ISO720-HGA 1
Acid resistance Class	ISO1776-First Class