The scope of application of GB/T 35590-2017 is that the input voltage is not more than 250V, the output DC voltage is not more than 60V, the output current of each port is not more than 5A, and the mobile power supply adopts the wired output method. Let's take a brief look at the constant damp heat...
According to the standard requirements of IEC 61951-1/EN61951-1, the high temperature aging test of nickel-cadmium batteries needs to be carried out at 70°C for 6 months. The condition of aging at 70°C for 6 months is to simulate the condition of constant endurance charging at 40°C for 4 years. Next,...
The components of the refrigeration system of the thermal shock test chamber of the huanyi instrument are: compressor, condenser, throttling mechanism, evaporator, and oil separator. 1. Compressor: It mainly compresses the low-temperature and low-pressure gas refrigerant into a...
The new version of the lithium-ion battery standard is "QB/T 2502-2020 General Specification for Lithium-ion Batteries". Below, the editor makes some simple explanations for some of the common test requirements for your reference. 1.Constant Damp Heat Test in temperature test of...
The thermal shock test of lithium batteries requires the use of a thermal shock cycle test chamber. The thermal shock test is a test required in the "GB8897.4-2019 Primary Battery Part 4: Safety of Lithium Batteries" standard. Let's take a look. Test equipment: battery thermal shock test...
The UL 1642 standard includes requirements for lithium battery testing, such as electrical performance testing, mechanical testing, and environmental testing of lithium batteries. Next, the huanyi instrument will give a brief explanation of the heating test and thermal cycle test in the environmental...
Lithium-ion batteries need to undergo a constant damp heat test to verify their reliability and safety. How to do the constant damp heat test of lithium-ion batteries? What kind of constant damp heat test chamber is used? Let's find out. Lithium-ion battery constant damp heat test: Test...
Under the change of temperature, the battery of electronic products may cause liquid leakage, fire, and explosion, which will cause harm to the human body. Below, the editor of the huanyi instrument will briefly introduce the temperature cycle test of lithium batteries of electronic products. Test...
According to my country's standard requirements, 100% of aerospace equipment needs to be screened for environmental stress. For these aerospace equipment, what are the specific requirements of the rapid temperature change test chamber in the stress screening test of aerospace equipment? Let's take a...
1. General requirement of the air duct cleaning device The determination instruments shall be calibrated or corrected according to the relevant standards or specifications. 2. Determination of air flow of the air duct cleaning device The air flow determination...
The pollution source generation device shall conform to the following specifications: a) The pollutant generation source for testing shall be capable of steadily generating the pollutants. b) It is necessary to ensure that the concentration of generated pollutants is about 5 times the standard...
A. Scope of Air Duct Cleaning Device 1.This article stipulates the testing device, the test method and the test result handling method for evaluating the cleaning effect of the air duct cleaning device. 2.This article is applicable to the modular air cleaner installed in the...
Placement of air cleaner test chamber: 1. 30m3 air cleaner test chamber Central position: ground type (on the ground), desktop type (on 700mm tabletop), wall mounted type (1800 mm from lower edge to ground), ceiling type (on 700mm...
The rotary arm type centrifuge is a test equipment that can generate centrifugal acceleration by rotating the rotary arm. The centrifugal acceleration can be used to conduct acceleration assessment or test of the product. The feature of the rotary arm centrifuge is that it has a rotary arm that can rotate...
The thermal shock test chamber is divided into two zones type and three zones type, among which, take the HYTS-80 model as an example: HYTS-80A Working temperature: -40~150℃ HYTS-80B Working temperature: -55~150℃ HYTS-80C Working temperature: -65~150℃ The above...
Why POLAR test method represents real living spaces. The test method assesses the ability of machines to remove harmful particles and gases, the uniformity of the cleaning performance delivered around the whole room, and airflow projection. Crucially, all machines are tested using...
Any product has disadvantages and advantages, which I will discuss below. The advantages of the programmable constant temperature and humidity test chamber: easy to use, simple to operate, can run automatically after setting the program, no need for personnel on duty, which greatly saves manpower...
What is CADR test? CADR – Clean Air Delivery Rate is an industry standard testing methodology that was specifically designed by the Association of Home Appliance Manufacturers based in US. The whole idea behind the test is to let the consumers know that – the product is up to...
1. The high temperature is still maintained outside the door, which is easy to cause an alarm. 2. Please note that the cabinet must be safely grounded to avoid electrostatic induction. 3. Avoid continuously opening and closing the refrigeration unit within 3 minutes. 4. If the heating sample is placed in...
Humidity test of constant temperature and humidity chamber: 1. Wet and dry bulb measuring method: Its advantage is that it is relatively simple to repair and maintain. In specific applications, only need to add water to the humidifier bulb and remove the wet bulb gauze. Compared with electronic humidity...
The high and low temperature test chamber is a simulation of the natural high and low temperature change environment, which is widely used in the test of the adaptability to the temperature environment during the storage and transportation of electronics, electrical products and other product parts and...
