Test Method: SATRA TM167

Colour fastness to rubbing - crockmeter test

July 2017

SCOPE

This method is intended to determine the degree of transfer of surface colour from a material during mild dry or wet rubbing. The method is mainly applicable to fabrics, leathers, yarns and sewing threads but can be used to assess any coloured sheet material.

PRINCIPLE

A test specimen of the material is rubbed by a dry or wet undyed cotton cloth which is moved linearly forwards and backwards under a constant contact force. After a set number of rubs any staining of the cotton cloth is subjectively assessed with a grey scale.

REFERENCES

BS 950-1:1967 (2017) – Specification for artificial daylight for the assessment of colour. Illuminant for colour matching and colour appraisal.
EN 20105-A03:1995, ISO 105-A03: 1993 – Grey scale for assessing staining.

HISTORY

First issued November 1992. Revised April 2001, July 2017.

AVAILABILITY

This test method is available to members and non-members.

PRICE (ex. VAT)

This price is for a printed copy of the Test Method.

• Members: £75
• Non-members: £215

TYPE

• Discolouration

USAGES

• Leather - uppers and linings
• Tests applicable to several material types
• Textiles and coated textiles, including synthetic uppers and linings
• Threads and elastics