Product description:
* meet the standard: AATCC 116, can provide 1134 grams of pressure, clockwise friction 1.125 rotation after counterclockwise friction, while the operating handle is only one-way rotation.
* test method: rotate vertically and positively
*AATCC friction cloth: 1 box
* weight: 11.1n
* diameter of friction head: 16mm
* non-skid sandpaper: 2 sheets
* dimension: 300x200x250mm (L×W×H)
* weight: 10kg
* use gray card (purchased separately) to compare with standard light source (purchased separately), and its dyeing and decolorization grade