Test Tube is made of superior Borosilicate Glass materials,it hasa good chemical compatibility. Adapted to storage for most of polar organic solvent, weak acid, weak base.
1.We have many different size ,but can also be made according to customer requirements.
2. The stopper /cap has different color .The tube can also use cork
3. Can be used for Lab or medical and packaging.
4. The screw mouth test tube ensures that the storage liquid does not leak or no air enter
5.If you have some special request,we can customized for you
Detailed Images
Specification
Normal Data |
Density ρ at 25°C | 2.23±0.02g/cm3 |
Hardness | >7 |
Tensile Strenth | 4.8x107Pa (N/M2) |
Bulk modulus | 93x103 Mpa |
Young's modulus | 63 KN/mm3 |
Poisson's ratio | 0.18 |
Specific heat capacity | (20-100°C) 0.82KJx(kgxk) |
Optical performance |
Light Transmittance | 92% |
The refractive index | Nd: 1.47384 |
The wavelength | 1) 435.8nm=1.481 2) 479.9nm=1.4772 3) 546.1nm=1.4732 |
Electric parameter |
Dielectric coefficient ε | 4.7 |
Dielectric strength | 5x107V/M |
Dielectric loss factor | tanσ (MC20°C)≤38x10-4 |
Chemical feature | |
Water resistance | Good | ISO719 HGB Level 1 |
Acid resistance | Good | ISO195 HGB Level 1 |
Alkali resistance | Very Good | ISO695 HGB Level 2 |