1. Install the SDI tester in the test position of the RO system. If the test point is after the pre-processing system, then when testing the SDI value, the RO system should operate normally, otherwise the final test result will be invalid.
2. At the beginning, no 0.45μ microporous filte…

When we are in the decoration of the house, there are many things to consider. The primary consideration of bathroom furniture is the waterproof performance of the substrate material. In the bathroom furn…

There are specific requirements for optical constants, such as high visible light transmission and no selective absorption coloration. According to the size of Abbe number, it is divided into enamel and f…

1. Luminous flux. It is the light energy that the light source can feel in the eyes of all sides of the space. The unit is lumens (lm). It is an important indicator of the ability of an electric light sou…

1) Before use, it should be air-lifted once to observe whether each part is normal. If there is any defect, it should be stopped;
2) During the maintenance and cleaning of the lifting platform, it shall be carried out after propped up the safety brace.
3) When the battery display is l…

EPG rubber powder polystyrene particle insulation system is based on premixed dry mixed mortar as the main cementing material, adding appropriate anti-cracking fiber and various additives, using polystyre…

Anti-radiation glass is a type of generalized optical glass. Includes radiation protection glass and radiation resistant glass.

Optical glass 1 The radiation-proof glass is mainly a glass which ha…

Optical glass differs from other glass in that it is an integral part of the optical system and must meet the requirements of optical imaging. Therefore, the determination of the quality of optical glass …

First, the light source of the electric light source

1. Resistive luminescence, which is a method of illuminating by the use of the inherent resistance of the conductor itself to generate a therma…

Not long ago, Shanxi Tianji Coal Chemical Industry Group Co., Ltd. suffered an aniline leakage accident caused by the rupture of the conveying hose. About 38.7 tons of aniline leaked, of which 30 tons were taken to intercept and 8.7 tons were flowed into the W…