Laboratory equipment needs a certain environmental factor as backing, because the normal operation of the instrument needs to be in an appropriate environment. The measurement equipment of the laboratory is mainly divided into measurement equipments such as length, weight, quality, and quality. These equipments are usually used at a low frequency, and are not used every day. Therefore, the rational management of equipment has become the focus of laboratories. In the national standard JJF1069-2007 "Statutory metrological verification agency assessment specification" and DI-LAC/AC01:2005 "accreditation criteria for testing laboratories and calibration experiments," the requirements for the measurement equipment environment in the laboratory are certain Specifications, but also stored in the proper environment, can be used to extend the life of these devices, and to ensure the measurement accuracy of these devices.
The seamless steel pipe is made by perforating the whole round steel, and the steel pipe without weld seam on the surface. It is mainly used as high-precision structural steel pipes for petrochemical industry, boiler pipes, automobiles and aviation.
Seamless tubing can be made from any of several alloys and metals, such as carbon steel, stainless steel, molybdenum, or tungsten. Seamless pipes are used in those industrial applications that require the highest safety requirements. To produce seamless steel pipes, the solid block is pierced with a piercing plug before the pipe is drawn to the desired size.
Some of the differences between seamless and welded pipes are:
Seamless pipes are extruded and drawn from billets, while welded pipes are produced from roll formed and welded strips.
Due to the higher range of security offered by seamless pipe, it is more expensive than welded pipe.
Seamless pipes are available in relatively short lengths, while welded pipes can be manufactured in longer continuous lengths.
Seamless pipe generally does not show any signs of corrosion until and unless it is subjected to a highly corrosive environment, whereas in welded pipe the welded area is more susceptible to corrosion attack.
The welded area is considered to be inhomogeneous, so it exhibits different ductility and lower corrosion resistance, as well as larger dimensional changes. Seamless pipes eliminate any such problems and thus offer high corrosion resistance.
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The main testing items of the experimental equipment include biological disinfection, dust, electromagnetic interference, radiation, humidity, power supply, temperature, sound level, and vibration level, etc., which are measured and guaranteed to perform technical activities adapted to related instruments. The monitoring of temperature and humidity directly affects the service life of the equipment. The temperature and humidity can be detected by using a temperature and humidity recorder, or by using a self-reporting thermometer and hygrometer. This instrument is used to measure the temperature of the environment. At the same time as the humidity, the light intensity in the detection environment can also be used, and it can be applied to the measurement of light intensity in the laboratory. Therefore, in the laboratory equipment management, the most important is the control of temperature and humidity, and sometimes even need to control the illuminance of the fluorescent lamp. Because the illuminance of fluorescent lamps will also affect the use and even the life of the instrument, we need another instrument that can measure the illuminance, such as a temperature illuminance recorder. This instrument is an instrument that can measure temperature and illuminance.
The internal and external environment of the laboratory, such as temperature and humidity, will cause instability of the equipment performance and seriously affect the management reliability of the metering equipment. The use of temperature illuminance recorders for monitoring, can use the manual detection form to detect, but also can use the computer lock and automatic monitoring mode to detect, the most special one is to match the temperature illuminance recorder The data analysis software can analyze the results of the measurement and combine the curve of the measurement results with the changes in the weather and the seasonality to understand the linear relationship between the two, so that the prevention can be carried out earlier for the change of temperature and humidity. As well as monitoring provides a great help.