Overview of the constant temperature and humidity laboratory program

The constant temperature and humidity laboratory adopts certain special equipment and technical methods to make the indoor temperature and humidity meet the requirements of a standard atmosphere for humidity control and test. The constant temperature and humidity laboratory is the infrastructure for the quality inspection and control of the production enterprise and the quality inspection of the goods in the field of circulation. Constant temperature and humidity laboratory is widely used in cotton spinning, wool spinning, chemical fiber, paper, packaging, tobacco production enterprises and quality inspection, fiber inspection and other departments, in accordance with ISO and GB standards, textiles, textile raw materials, paper, paper products and cartons, etc. The inspection of the physical and physical items of the commodity must be carried out under standard atmospheric conditions. The standard atmosphere for textile and textile raw materials inspection is in accordance with ISO139 and GB6529 standards, temperature 20±2 °C, relative humidity 65%±2%; standard atmosphere for paper, paper and carton inspection according to ISO187 and GB10739 standards, temperature 23 ±1 ° C, relative humidity 50% ± 2%. In addition to the constant temperature and humidity laboratory of conventional temperature and humidity, there are other special requirements such as low temperature of 5-18 °C, high temperature of 30-80 °C, low humidity of relative humidity requirement of less than 40% RH, and high humidity of relative humidity higher than 80% RH. Constant temperature and humidity laboratory.





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We can provide constant temperature and humidity laboratory:

Types of	Temperature and humidity	Application industry
Conventional constant temperature and humidity laboratory	18-30 ° C, 45% - 70% RH	Textile, paper, precision manufacturing, etc.
Cryogenic constant temperature and humidity laboratory	12-18 ° C, 45% - 70% RH	Film preservation, drug research, etc.
Ultra-low temperature constant temperature and humidity laboratory	5-12 ° C	Biological culture, storage, etc.
High temperature and high humidity aging room	30-80 ° C, 40%-95%	High temperature or high temperature and high humidity aging test of electronic products

Some industries test temperature and humidity standards:

sub option	papermaking	Textile	plastic		coating
temperature	23±1°C	20±1°C	20±1°C		23±2°C
Relative humidity	50±2%	65±2%	50±3%		50±5%
Cycles	15~30 times/h	15~30 times/h	15~30 times/h		15~30 times/h
Air flow rate	≤0.3m/s	≤0.25m/s	≤0.3m/s		≤0.3m/s
Fresh air supplement	≥0.5m2/person.	≥0.5m2/person.	≥0.5m2/person.	≥0.5m2/person.
noise	≤55dB	≤55dB	≤55dB	≤55dB
National standard	GB10739	GB6529	GB/T2918	GB9278
International standard	ISO187	ISO139	ISO291	ISO3270

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