1. Borosilicate glass according to ISO3585: 1991; Transmittance of borosilicate glass: 0.92. Absorbance of solar selective absorptive coating: 0.94; Hemispherical emittance: 0.08; Getter according to GB/T9505-1998. 2. Start-up temperature: No more than 25Celsius. 3. Start-up time: No longer than 2 minutes under normal sunshine. 4. Low temperature resistance: No breaks at -30Celsius. 5. Heat impact resistance: No damage after over 3 time's alternative impact of cold water below 25Celsius and hot water over 90Celsius. 6. Pressure resistance: Can withstand 0.6Mpa. 7. Hail resistance: No damage by the impact of 25mm diameter hail.
1. Borosilicate glass according to ISO3585: 1991; Transmittance of borosilicate glass: 0.92. Absorbance of solar selective absorptive coating: 0.94; Hemispherical emittance: 0.08; Getter according to GB/T9505-1998. 2. Start-up temperature: No more than 25Celsius. 3. Start-up time: No longer than 2 minutes under normal sunshine. 4. Low temperature resistance: No breaks at -30Celsius. 5. Heat impact resistance: No damage after over 3 time's alternative impact of cold water below 25Celsius and hot water over 90Celsius. 6. Pressure resistance: Can withstand 0.6Mpa. 7. Hail resistance: No damage by the impact of 25mm diameter hail.
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