Application Fields and Test Standards of High and Low Temperature Alternating Humidity Heat Test

Date：2023-03-21 17:52:00Views：343

High and low temperature alternating humidity and heat test refers to the adaptability test of products during storage, transportation, and use under simulated test conditions in different environments such as high temperature, low humidity, low temperature, and high humidity. It is a widely used test project in the application field. It is mainly used to test and determine the state and various performance parameters of electrical, electronic, and other products and materials after undergoing high temperature, low temperature, alternating humidity, or constant test temperature environment changes. This article has collected and collated some materials, hoping to have greater reference value for readers.

High and low temperature alternating humidity and heat test is applicable to: high and low temperature alternating humidity and heat test/high and low temperature humidity and heat test of lamps and lighting, electronic and electrical appliances, automotive components, power batteries, fuel cells, metal materials, wires and cables, plastic products, chemical products, biomedical supplies, electrical engineering, building materials, rail transit, military products, and other industrial products.

Reference standards for high and low temperature alternating humidity and heat detection:

High temperature test: GB/T 2423.2 IEC 60068-2-2

Low temperature test: GB/T 2423.1 IEC 60068-2-1 EIA-364-59

Constant temperature and humidity test: GB/T 2423.3 IEC 60068-2-78 MIL-STD-202

Temperature change test: GB/T 2423.22 IEC60068-2-14

Alternating damp heat: GB/T 2423.4 IEC 60068-2-30

Temperature and humidity combined cycle test: GB/T 2423.34 IEC60068-2-38 MIL-STD-202

High and low temperature alternating humidity and heat test refers to the adaptability test of products during storage, transportation, and use under simulated test conditions in different environments such as high temperature, low humidity, low temperature, and high humidity. Temperature and humidity experiments use products that may be used in warm and humid environments.

A variety of different materials have different forms of physical reactions to temperature and moisture. The effects of temperature are mainly plastic deformation, product overheating, or poor low-temperature startup. Porous materials may exhibit surface moisture adsorption, infiltration, and condensation due to the capillary effect under humid environments, and may cause product failure due to the static charge accumulation effect in low-temperature environments.

High and low temperature alternating damp heat test application fields:

Road traffic category: electronic and electrical equipment for road vehicles, rail transit rolling stock equipment and devices, automotive components, etc

Computer category: computer, display screen, host, computer components, medical equipment, and other precision instruments

Electronic communication category: mobile phones, radio frequency devices, electronic communication components, etc., PCB, PCBA.

Electrical appliances: household appliances, lamps, transformers, and other types of household electrical equipment, instrumentation, medical equipment;

Others: packaging boxes, transportation equipment, etc.

The above is the relevant content of the high and low temperature alternating humidity and heat test organized by the core breaking test team, hoping to be helpful to you. Our company has a team of professional engineers and industry elites, and has three standardized laboratories with an area of over 1800 square meters. It can undertake various testing projects such as electronic component testing and verification, IC authenticity identification, product design and material selection, failure analysis, functional testing, factory incoming material inspection, and tape weaving.