According to the IEC 62133/EN62133 standard, portable sealed secondary cells and batteries need to pass the temperature cycle test to determine whether they meet the standard. What kind of battery constant temperature and humidity test chamber is used for the temperature cycle test? Let's take a look...
In order to ensure the safety of air transportation and meet the transportation needs of goods containing lithium batteries, according to the relevant provisions of the IATA "Dangerous Goods Regulations", the operation specification for rechargeable lithium batteries, that is, the test of UN38.3, has been...
Aerospace equipment often uses Rapid-Rate Thermal Cycle Chamber for environmental stress screening, but environmental stress screening has certain requirements for equipment, and the temperature rise and fall speed of ordinary equipment is far from meeting the requirements. So, what are the parameters of...
The more complex the assembly of components, the more tests are required to verify reliability. Among them, environmental stress screening (ESS) is one of the test items. The test equipment used for environmental stress screening is a rapid temperature rise and fall test chamber. Failures...
The rapid heating and cooling test chamber is often used in the environmental stress screening test (ESS). Due to the different test requirements, the selected temperature change rate is also different. Let's take a look at the selection method of the temperature change rate in the rapid heating and...
The rapid temperature change test chamber is mainly used for environmental stress screening of electronic equipment. Environmental stress screening is also called ESS. Different standards have different requirements for environmental stress screening. Let's take a look at the requirements of different standards...
In the voc detection step of stationery products, it is indispensable to sample the sample. How to take the sample properly? Let's take a look at the sampling requirements for organic compound emissions from stationery products. 1. Test equipment: VOC emission chamber 2. Equipment...
According to the categories of people who use stationery and sports products among consumers in my country, stationery and sports products are divided into two categories: adult-use stationery products and children's stationery and sports products. The requirements for the emission of organic compounds between the...
The rotary arm steady-state centrifugal test machine is used to rotate the engine fixed on the rotating frame to generate centrifugal force through the transmission system, and to test the changes of some of its performance parameters under overload conditions. It is mainly used for scientific research in the...
Modern military and national defense fields have high requirements on the mobility of pyrotechnic aircraft. The better the mechanical properties of the pyrotechnic product, the higher the overall strength requirements and the stronger the ability to withstand motor overload. Therefore, pyrotechnics can use the...
For VOC sampling of wall coatings, a VOC discharge box is required. The standard VOC discharge boxes are 60L, 80L, 1000L, etc. Let's talk about the sampling requirements for using a 60L VOC discharge box as a wall paint VOC according to the GB/T 37884-2019 standard. According to the...
The paint voc release chamber is made of inert material, which is very particular about material selection because the inert material will not release or release a small amount of gaseous pollutants that affect the test. Secondly, the stability of the temperature and humidity in the box is also very important....