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Test Tube
Product Name: Test Tube<br>Model Number: 110 long<br>Place of Origin: China<br><br>Glass type: soda lime glass<br><br>Chemical composition: SiO2,,Al2O3,,B2O3,,CaO, MgO, BaO, K2O, Na2O, Fe2O3<br><br>Physical properties:<br>1) Expansion: 90±2.0 x 10-7/°C<br>2) Anti-water stability: grade 4<br>3) Annealing point: 510°C - 380°C<br>4) Density: 2.5g/cm³<br>5) Volume resistivity TK-100: 230°C<br>6) Temperature of softening point: 560°C<br>7) Heat resistant emergency performance (ΔT): >110°C<br><br>We can also customize these products according to buyers' requests.
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