All carpet samples tested must be fully identified by the pile fiber type, pile yarn weight of finished carpet, pile density, and tuft height. Adequate controls must demonstrate that bacteriostatic agents in the carpet pile or backing do not yield false-negative data which interfere with the test results. If the product is intended for use in hospitals or medical institutions, a wet vacuum pickup must be specified in the label directions for use. Carpet mounting board . Cutting equipment .
Scrub brushes .
Similar style glass bottles may be used but care must be taken to prevent breakage during shaking. Adjustable spray atomizer modified to feed from a calibrated test tube or bottle. A Model 15 DeVilbiss atomizer on a 2-oz. No carpeting is available to serve as a standard. If the product is intended for use on wool carpeting, a representative wool sample must additionally be tested.