Automatic Burettes 1.Reasonanle price 2.High Quality 3.With Three Way Piston 4.Have a low coefficient of expansion

Laboratory Glasswares

Introduction:

      Automatic Burettes,   3 Way Piston     

    The   Automatic Burettes  are made of borosilicate glass  ,it have a low coefficient of expansion and are thermal shock resistant.

Features:

High-borosilicate glass: BJTY glass is accord with ISO3585 and ASTM E438 level I A standard for the coefficient of expansion of 3.3 high-borosilicate glass.

BJTY glass with the best chemical stability, low expansion coefficient, can process performance and high temperature resistant impact as the main characteristics, and has a strong resistance to water, acid and alkali, such as performance, and become a laboratory instruments, chemical corrosion resistant glass equipment and heat-resistant glass vessels products are the most ideal material

Chemical Composition:

SiO2:           81%

B2O3:         13%

R2O:            4%

Al2O3 :        2%

Type: high-borosilicate glassColor: colorless, transparentChemical properties:

water resistance: grade 1;

Acid performance: grade 1;

Alkalis: A2 class

Thermal expansion coefficient:

(0-300 °C) 3.3 10-6 K-1

Annealing point (°C) : 560Softening point (°C) : 820Density (g/cm3) : 2.23

Specifications:

Capacity	Torlerance	Scale Interval	Height	Packing
5	0.01	0.02	770(H)	4
10	0.025	0.05	930(H)	4
25	0.04	0.1	930(H)	4
50	0.05	0.1	930(H)	4