This standard specifies the methods for measuring the infrared reflectance and infrared transmittance of textiles with an infrared radiometer, calculating the infrared absorptivity, and measuring the radiation heating rate with a point thermometer. This standard applies to all types of textiles.
GB/T 18319-2001 history
2019GB/T 18319-2019 Textiles—Test method for solar heat storage property
2001GB/T 18319-2001 Textiles-Testing method for thermal retention with accumulated by infrared ray