Washing fastness tester also called as launder meter is for determining the color fastness of textiles to washing and laundering. The specimen of the textile in contact with one or two specified adjacent fabrics is mechanically agitated under specified conditions of time and temperature in a certain solution, then rinsed and dried, then changes in color of the specimen and the staining of the adjacent fabrics are assessed with grey scales to determine the colorfastness of textiles.

ISO 105-C10, ISO 105-C06, AATCC 61, AATCC 132, GB/T 3921, GB/T 12490, BS 1006, JIS L0860
| No. | Product |
| 2030301 | Washing fastness tester |
| 2030302 | Washing fastness tester with double chambers |
| 2030303 | 550ml containers kit |
| 2030304 | 1200ml containers kit |