1. Connect the external power supply of the device first. 2. Open the door, put the sample in the box, and then close the door. 3. Turn the vacuum pump switch to 1, and the vacuum pump starts to pump vacuum. When the required pressure is reached, turn off the vacuum pump. 4. Turn the power switch...
1. High and low temperature test equipment. In the high temperature test, if the temperature change does not reach the test temperature value, you can check the electrical system and troubleshoot one by one. If the temperature rises very slowly, check the air circulation system to see if the adjustment baffle of the...
In fact, generally speaking, tap water can be used in the high and low temperature humidity test chamber to achieve the humidity effect, but if the tap water is used for a long time, it is easy to form scale in the water pipe, and the impurities in the tap water will be adsorbed to the...
The salt spray corrosion test is aimed at the surface treatment of various materials, including hardware plating, hardware, electronic parts, chemical coatings, baking paint, automobiles, motorcycles, hardware sanitary ware, screws, springs, magnetic materials, organic and inorganic coatings, anode treatment, and...
1. The test sample fixture is placed on the sample rack of the UV test box, facing the fluorescent lamp. When the sample does not completely fill the sample rack, you need to fill the sample rack with a blackboard to keep the inner wall of the UV test box closed. 2. The test temperature of...
1. When testing a large sample, there will be temperature and humidity deviations in the updraft and downdraft, so the sample location should be carefully considered. Try to place it in the center of the working space of the temperature test equipment. The samples should not touch or overlap each other,...
VOC emission test box Meet the criteria first In 2007, HJ/T400-2007 "Method for Sampling and Determination of Volatile Organic Compounds and Aldehydes and Ketones in Vehicles" In 2009, the mandatory standard GB24409-2009 "Restriction of Hazardous Substances in Automotive Coatings" was issued In...
(1) VOC emission test box Sampling time In principle, air sampling shall be carried out on the first day (24h), 3 days (72h), 7 days, (14 ±1) days and (28 ± 2) days after the start of the test, and other designated times are also Air sampling is possible. Note 1: The choice of test process is based on...
formaldehyde emission test box Working principle: Put a sample with a surface area of 1 square meter into a climate chamber whose temperature, relative humidity, air flow rate and air replacement rate are controlled at a certain value. Formaldehyde is released from the sample and mixed with the air in the...
The formaldehyde climate chamber is a formaldehyde emission detection test equipment developed according to the national standard GB18580-2017, LY/T1612-2004 American standard ASTM6007-2, European standard EN717-1, and international standard ISO16000-9. It is suitable for all kinds of wood-based panels and...
There are many reasons for ozone aging in the ozone aging test chamber of rubber. Among them, the common ozone-aged rubber has odor pulverization, fading, cracking, brittleness, and hardening. The editor of Annai will explain to everyone one by one. Ozone aging test chamber: 1....
The salt spray test in the salt spray test chamber is an important means to assess the salt spray corrosion resistance of products or materials. The scientificity and rationality of the test results are very important. There are many reasons that affect the stability and consistency of the salt spray test results....
