AATCC 123:2000 pdf download.Carpet Soiling: Accelerated Soiling Method
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.—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.
9.1 Soiling levels are predetermined on an arbitrarily selected carpet (control sample) soiled to give light, medium and heavy degrees of soil (see 13.4) prefera- bly by exposure to a service soiling test (see 13.5).
9.2 Soiling times in the ball mill are determined by soiling unsoiled speci- mens of the control sample to match the levels of soiling established with soiled control specimens according to 9.1.
9.3 Carpet specimens under evaluation are soiled for given times established in 9.2.AATCC 123 pdf download.