A constant temperature and humidity laboratory is a laboratory that, through the use of specialized equipment and technical methods, maintains its indoor temperature and humidity to meet the requirements of a specific standard atmosphere for conditioning and testing. Constant temperature and humidity laboratories are essential infrastructure for product quality inspection and quality control in manufacturing enterprises. They are widely used in cotton spinning, wool spinning, chemical fiber, paper, packaging, and tobacco production enterprises, as well as quality inspection and fiber inspection departments. According to relevant ISO and GB standards, the physical properties of textiles, textile raw materials, paper, paper products, and cardboard must be tested under standard atmospheric conditions. The standard atmosphere for textile and textile raw material testing is specified by ISO 139 and GB 6529 standards: temperature 20±2℃, relative humidity 65%±2%; the standard atmosphere for paper, paper products, and cardboard testing is specified by ISO 187 and GB 10739 standards: temperature 23±1℃, relative humidity 50%±2%. In addition to conventional constant temperature and humidity laboratories, there are also special constant temperature and humidity laboratories with specific requirements such as low temperatures of 5-18℃, high temperatures of 30-80℃, low humidity (relative humidity less than 40% RH), and high humidity (relative humidity greater than 80% RH).

Key Design Considerations for Constant Temperature and Humidity Laboratory Solutions:
The overall planning of the laboratory must consider the following requirements: it involves a wide range of aspects, requiring the participation of professionals from various fields, including architecture, water and electricity, air conditioning, and laboratory users.
Design Objective:
To create a workspace for laboratory equipment that ensures stable and reliable operation, extends its lifespan, and meets user requirements while safeguarding the physical and mental well-being of the staff.
Overall Design
The design process involves comprehensively considering the relationships between all disciplines and ensuring strict coordination to avoid errors, omissions, and conflicts.
Specific Design
The design incorporates advanced technologies from both domestic and international sources, utilizing environmentally friendly equipment and materials that are both advanced and cost-effective, while also integrating a user-friendly design philosophy.
We can provide temperature and humidity controlled laboratories.
Types: | Temperature and humidity | Application Industries: |
Standard constant temperature and humidity laboratory | 18-30℃,45%-70%RH | Textiles, papermaking, precision manufacturing, etc. |
Low-temperature constant temperature and humidity laboratory | 12-18℃,45%-70%RH | Film preservation, pharmaceutical research, etc. |
Ultra-low temperature constant temperature and humidity laboratory | 5-12℃ | Biological cultivation, storage facilities, etc. |
High-temperature and high-humidity aging chamber | 30-80℃,40%-95% | High-temperature or high-temperature and high-humidity aging tests for electronic products |
Temperature and humidity testing standards for certain industries
Classification | Papermaking | Textiles | Plastics | Coatings |
Temperature | 23±1℃ | 20±1℃ | 20±1℃ | 23±2℃ |
Relative humidity | 50±2% | 65±2℃ | 50±3℃ | 50±5℃ |
Number of cycles | 15~30bout/h | 15~30bout/h | 15~30bout/h | 15~30bout/h |
Air velocity | ≤0.3m/s | ≤0.25m/s | ≤0.3m/s | ≤0.3m/s |
Fresh air supply | ≥0.5m2/People. Minutes | ≥0.5m2/People. Minutes | ≥0.5m2/People. Minutes | ≥0.5m2/People. Minutes |
Noise | ≤55dB | ≤55dB | ≤55dB | ≤55dB |
National standards | GB10739 | GB6529 | GB/T2918 | GB9278 |
International standards | ISO187 | ISO139 | ISO291 | ISO3270 |