AATCC 26:2020 pdf download.Test Method for Ageing of Sulfur-Dyed Textiles: Accelerated
4. Terminology
4.1 accelerated ageing, n.—in textile pmcessing and testing, use of control led environmental conditions 10 promote rapid physical and!or chemical change in a textile material.
4.2 sulfur the, n. -a dye, containing sulfur both as an integral part of the chromophore and in attached polysulfide chains, normally applied in the alkali-soluble reduced (leuco) form from a sodium sulfide solution and subsequently oxidized to the insoluble form in the fiber.
5. Safety Precautions
5. 1 The safety precautions specified in the methodiprocedure are ancillary to the testing procedures and are not intended to be all inclusive.
5.2 It is the user’s responsibility to reference applicable safety data sheets, use safe and proper techniques, and wear appropriate personal protective equipment in handling materials in this standard.
5.3 Users MUST consult manufacturers for specific details such as equipment operating instructions and other recommendations. Consult and follow all applicable health and safety regulations (e.g., OSHA standards and rules).
9.1 Oven Test. Option 1. Expose the specimens to 135 ± 2°C heat in the oven for 6 h continuously. At the beginning of the second, third, fourth, fifth and sixth hours, close the ports or vents and add 20 mL of water for each 0.03 m3 (1.0 ft3) of oven capacity. Keep vents closed for 5 mm. then open and resume circulation for the rest of the period. At the end of 6 h of heating, remove the specimens from the oven and place in a conditioning room.
9.1.1 Oven Test, Option 2. Expose the specimens to 135 ± 2°C heat in the oven for 6 h. Remove the test specimens from the oven at the end of each hour and thoroughly humidify in an atmosphere of steam, then replace in the oven. At the end of 6 h of heating, remove the specimens from the oven and place in a conditioning room.
9.1.2 Oven Test, Option 3. Expose the specimens to 135 ± 2°C heat in the oven for 6 h continuously. At the beginning of the test, introduce 100 mL of water for each 0.03 m3 (1.0 tV) of oven capacity using a vessel having a surface area of approximately 413 cm2 (64 in.2). Leave the vents open during the entire test. At the end of the 6 h of heating, remove the specimens from the oven and place in a conditioning room. Under the conditions above, it has been found that the water will require 1.75-2.0 h to evaporate.AATCC 26 pdf download.