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Description
Technique specification: Material: borosilicate glass Transmittance of borosilicate glass: 0.94; Hemispherical emittance: 0.08; Getter according to GB/T9505-1998. Start-up temperature: No more than 25 Start-up time: no longer than 2 minutes under normal sunshine. Isothermal performance: the temperature tolerance between any 2 random points does not exceed 2 after 5 minutes of working. Low temperature resistance: No breaks at -50 Air pressure: P 5*10-3Pa. Heat impact resistance: No damages after over 3 times alternative impacts of cold water below 25 and hot water over 90 Pressure resistance: can withstand 0.6 MPa. Hail resistance: no damage by the impact of 35mm hail. |
