AATCC 114:2016 pdf download.Chlorine, Retained, Tensile Loss: Multiple Sample Method
4. Safety Precautions
NOTE: These saIty precautions are for information purposes only. The precautions are ancillary to the testing procedures and arc not intended to be all inclusive. It is the user’s responsibility to use safe and proper techniques in handling materials in this test method. Manufacturers MUST be consulted for specific details such as material safety data sheets and other manufacturers recommendations. All OSHA standards and rules must also he consulted and followed.
4.1 Good laboratory practices should be followed. Wear safety glasses in all laboratory areas.
4.2 Manufticturer’s safety recommendations should he followed when operating laboratory testing equipment.
4.3 Use chemical goggles. rubber gloves and apron to protect skin and eyes during handling of sodium hypochlorite and sodium carbonate solutions.
4.4 An eyewash/safety shower should be located nearby for emergency use.
7. Procedure
7.1 Preparation of Washing Machine. If the washing machine has been used for anything other than chlorine bleaching. operate it through a full wash cycle with water, adding 0.15% sodium tetraphosphate at the beginning of the cycle. Atler the machine is free of impurities, set the machine for a Normal cycle, using one of the washing temperatures in Tables I, III or V of M6 as appropriate for the type of washing machine selected.
7.2 Chlorination. Permit wash water to enter machine to specified level. Add sufficient diluted sodium hypochlorite to wash water to obtain a bath liquor concentration of 0.lO% by weigh of available chlorine. Adjust the pH to 9.5 with sodium carbonate to raise the pH or sodium bicarbonate to lower it. Add all the test samples and sufficient untreated kierboiled bleached cotton to make a 50: 1 1 iquor-to-cloth ratio. Run machine through wash portion of cycle.
7.3 Rinsing. After the first load of wash water has been dumped and the machine has been refilled, add 10 mL of the buffer solution (see 11.5) for each gallon of water and continue operation through the remaining rinse cycles and the final spin cycle. If there is more than one deep.AATCC 114 pdf download.