上课把女同桌内裤摸湿,一线高清视频在线观看www国产,色综合伊人色综合网站下载,男人边吃奶摸下边免费视频,精品综合久久久久久蜜月

【Scope of application】

YT1201 UV aging test box is used for light resistance, weather resistance and light aging test of various geosynthetics. The exposure test of the sample is carried out in an environmentally controlled fluorescent ultraviolet lamp climate box. Through simulating and strengthening the light, heat, humidity, rainfall and other environmental factors that are the main aging damages in the natural climate. By simulating accelerated tests under long-term exposure, the results of the material's weather resistance can be obtained.

【Standards compliant】

 JTG E50 T1164 GB/T 14522-93 "Accelerated Test Method for Plastics, Coatings, Rubber Materials, Artificial Climate for Machinery Industry Products"; GB-T16422.3-1997; ISO4892-3:1994 "Plastic Laboratory Light Source Exposure Test Method" Wait.

Note: meet the above standards, but not limited to the above standards;

【technical parameter】

1. Main features: automatic control of illumination, condensation and circulation, real-time monitoring and display

2. Light temperature: RT+10℃～70℃

3. Condensing temperature: 50℃

4. Condensation method: steam humidification and condensation

5. Temperature uniformity: ±3℃

6. Irradiation intensity: 0.55W/m2

7. Illumination/condensation period: 0～9999h59min can be set (for example: 4H/4H or 8H/8H)

8. Center distance of lamp tube: 70mm

9. The distance between the sample and the tube plane: 55mm

10. Ultraviolet tube: UV-A340 or UV-B313 (optional)

11. Ultraviolet wavelength: (UVA) 315～400nm; (UVB) 280～315nm

12. Lamp life: 1600～1800H

13. Standard test piece: 75×150mm or customized according to customer requirements (21 samples can be made by yourself)

14. Control system: touch screen controller, real-time monitoring and friendly interface, simple to se, convenient and easy to use.

14. Power supply: AC220V 50HZ 4.7KW

Structure and material:

1. Inner box size: D450 ×W1165×H500㎜

2. Dimensions: D500×W1300×H1400㎜

3. Liner material: SUS304# high-grade stainless steel plate

4. Shell material: SUS304# high-grade stainless steel plate

5. Test piece fixture material: SUS304 stainless steel plate

6. Imported lamps: 8 pieces in the second row, 40W/piece

7.  Water source and consumption: clean water or distilled water 8 liters/day (customer prepares)

8.  Control system: color touch screen, real-time display of irradiation, condensation, irradiation intensity, and lamp life when the lamp is tired. Chinese input mode, the whole process runs automatically.

Detailed introduction:

1). The structure of the test box is made of corrosion-resistant metal materials, including 8 fluorescent ultraviolet lamps, a water tray, a test sample rack and a touch screen controller.

2). The lamp power is 40W, and the lamp length is 1200mm. The uniform working area of ??the test box is 900×210mm.

3). The lights are installed in a row of four, divided into two rows, the tubes of each row of lights are installed in parallel, and the center distance of the lights is 70 mm.

4). The test sample is fixedly installed at the position of the nearest parallel plane 50mm away from the surface of the lamp. The test sample and its bracket constitute the inner wall of the box, and their backs are exposed to the cooling air at room temperature. Temperature difference. In order to produce stable condensation conditions during the condensation stage on the surface of the test sample, the test box should generate natural air convection from the bottom through the outer wall of the box and the channel of the test sample.

5). The water vapor is generated by the water pan with the lower heating box, the water depth is not more than 25mm, and there is an automatic water supply controller. The water pan should be cleaned regularly to prevent the formation of scale.

6). The temperature of the test box is measured by a sensor fixed with a width of 75 mm, a height of 100 mm, and a thickness of 2.5 mm. The black aluminum plate (blackboard) is used to measure the temperature. The blackboard should be placed in the central area of ??the exposure test. The measuring range of the thermometer is 30 ～80℃, the tolerance is ±1℃. The light and condensation stage should be controlled separately, and the condensation stage is controlled by the heating water temperature.