the lab at 72 u00b0 f and 50 rh for at least 4 hours weigh 5 samples to the nearest 0 01 gram and average the weight use this average as a base for the determination of 80 of the fabrics capacity as follows int abs gats abs 200 u00d7 0 80 u00d7 average weight ml where ml is the milliliters of artificial urine to be used heat artificial urine to 42 u00b0 c pour about 50 ml into a burette and dispense the required ml into a 100 ml beaker using a mercury thermometer allow the liquid to cool to 38 u00b0 c then immediately pour onto the sample laid on a watch glass setting on the styrofoam block start the data logger attached to the ir thermometer which is aimed on the center of the sample from 24 34 distance collect data on the ir temperature on 10 second intervals for 5 minutes test a minimum of 3 samples and average the results use the temperature loss at selected intervals to characterize the cooling an example of a preferred article using a fabric of this invention is a bed pad having a first layer of an open mesh circular.