Abrasion resistance is the ability of a fabric to withstand surface wear from rubbing. Two of the test methods for measuring abrasion resistance are the Wyzenbeek and Martindale.
Wyzenbeek Test Method (Modified)
The fabric to be tested is pulled taut and rubbed in both the warp and filling direction, using a piece of cotton duck fabric as the abradant. The uber of cycles, or double rubs endured before the fabric shows "noticeable wear" is counted. This number determines the fabric's abrasion rating. General Contract Upholstery: 15,000 and Heavy Duty Upholstery: 30,000
Martindale Test Method
The fabric to be tested is mounted flat and rubbed in a figure eight like motion using a piece of worsted wool cloth as the abradant. The number of cycles endured before the fabric shows an objectionable change in appearance is counted. This number determines the fabric's abrasion rating. General Contract Upholstery: 20,000 and Heavy Duty Upholstery: 40,000
Color Fastness to Light
Color fastness to light refers to a fabric's ability to resist fading when exposed to light. To measure for color fastness to light, the fabric to be tested is exposed under specific conditions to a controlled light that simulates the sun's rays. At timed intervals, the test swatch is compared to a gray scale and the degree of fading is rated. A Class 5 designation indicates there was no fading and a Class 1 designation indicates a high degree of fading. A Class 4 rating is equivalent to a minimum of 40 hours and meets industry standards for upholstery and drapery.