AATCC 123 pdf free download

AATCC 123 pdf free download.Carpet Soiling: Accelerated Soiling Method.
1. Purpose and Scope 1.1 This test method describes a proce- dure for the accelerated soiling of carpets. It can be used to compare the soiling pro- pensity of two or more carpets; or it can be used to soil carpets as a preliminary step in measuring either the ability of a carpet to be cleaned or the efficiency of a cleaning process. This accelerated carpet soiling method has been found to give re- sults similar to floor service soiling, but its use is recommended only as a screen- ing method and not as a replacement for floor testing. 2. Principle 2.1 Specimens of carpet are tumbled together with prepared synthetic soil (see Sections 7 and 8) in a laboratory ball mill for a predetermined time. 3. Terminology 3.1 carpet, n.- -all textile floor cover- ings not designated as rugs. 3.2 soil, n.一 dirt, oil or other sub- stances not normally intended to be present on a substrate such as a textile material. 3.3 soiling, n.- in textiles, a process by which a textile substrate becomes more or less uniformly covered with/or im- pregnated with soil.3.4 textile floor covering, n.- an arti- cle having a use- surface composed of textile material and generally used for covering floors. 3.5 use-surface, n.- of textile floor covering, the part of a textile floor cover- ing directly exposed to foot traffic. 3.6 accelerated soiling, service soil- ing, and other key terms will be added when definitions are agreed upon. 4. Safety Precautions NOTE: These safety precautions are for information purposes only. The pre- cautions are ancillary to the testing proce- dures and are 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. Manufac- turers MUST be consulted for specific details such as material safety data sheets and other manufacturer’s recommenda- tions. All OSHA standards and rules must also be consulted and followed. 4.1 Good laboratory practices should be followed. Wear safety glasses in all laboratory areas. 4.2 Manufacturer’s safety recommen- dations should be followed when operat- ing laboratory testing equipment. 5. Apparatus and Materials 5.1 Jar mill, laboratory, ball, roller type, direct motor driven, 1 L (1 qt) (see 13.1). 5.2 Jar, ball, mill, porcelain, approx. 1 L(1 qt) (see 13.2). 5.3 Flint pebbles, 1.9-2.5 cm (0.8-1.0 in.) diam (see 13.3). 5.4 Soils. 5.4.1 Soil (vacuum cleaner sweepings) (see Section 7). 5.4.2 Synthetic soil (see Section 8). 5.5 Vacuum cleaner: tank type; 120 volts; 750 watts; 50-60 cycles; use fabric or upholstery attachment.6. Test Specimens 6.1 Cut two specimens, each 18 cm (7 in.) in warp direction of tufting and 9 cm (3 in.) in flling direction or across tufting direction. 6.2 Condition specimens at room tem- perature for 16 h prior to use. 7. Soil Preparation 7.1 Take sweepings from a vacuum cleaner. For maximum reproducibility use sweepings from several vacuum cleaners within the surrounding area of the testing facilities. 7.2 Pass sweepings through a 20-mesh screen and then through a 100-mesh screen. 7.3 Take soil which finally passes through the 100-mesh screen and sterilize it (for health reasons) by steaming for 30 min; then air dry. 7.4 Mix soil thoroughly and set aside sufficient quantity to complete the series of tests. 7.5 Do not store soil for more than 4 months.AATCC 123 pdf download.