Constant temperature and humidity laboratory: a laboratory with the indoor temperature and humidity in line with a standard atmosphere through some specialized equipments and techniques.
Constant temperature and humidity laboratory is widely used in cotton, wool, chemical fiber, paper, packaging, tobacco manufacturers, as well as quality inspection and other departments, in accordance with ISO and GB standards, the inspection of textiles, textile raw materials, paper, paper products and cardboard commodities must be carried out under standard atmospheric conditions.
According to ISO139 and GB6529, the standard atmosphere of textiles and textile raw materials testing is 20±1°C, the relative humidity to be 65% ±2%£» paper, paper and cartons commodity inspection standard atmosphere in accordance with the provisions of the ISO 187 and GB10739 standard: temperature 23±1°C, relative humidity 50%±2%; in addition to the conventional temperature and humidity constant temperature and humidity laboratory, there are other special ones with the low temperature to be 5 to 8°C, high temperature of 30 ~ 80°C, relative humidity requirements of less than 40% RH, or above 80%RH.
