BS/EN 6059-407-2019 pdf download.Aerospace series – Electrical cables, installation- Protection sleeves – Test methods Part 407: Mark adherence and print permanence.
6 Method
The Identification products shall be tested in each of the methods outlined below:
6.1 Test method A – Mark adherence
This method is used to demonstrate the quality and initial adherence of the chosen mark to the identification product. This method utilizes the eraser as specified in Clause 5 in an attempt to remove the dry mark from the product surface.
The samples shall be prepared as described in Clause 3.
The sample to be tested shall be clamped at one end of the test jig such that the rubbing member can be moved along the test piece surface without causing creasing.
All markers should be positioned directly under the rubbing member. The print shall be centrally positioned under the rubbing member.
The rubbing member shall be normally an eraser of shore A. hardness range SO to 75 and dimensions (18 x 11) mm. (rub surface area)
— An alternative rubbing member (where specified) Is non-woven towel wipe as specified In Clause 4. The rubbing member shall be loaded to the specified weight.
— The standard minimum weight shall be 0.9 kg.
The rub test shall be conducted at ambient temperature: (23 ± 2) °C.
The number of cydes shall beas specifIed.
— The minimum number of cycles shall be 20.
After performing the rub test the sample shall be examined for print legibility. (see section 5.4).
6.2 Test method B print permanence – Dry wipe test
This method is used to demonstrate the resistance of the mark to a specified environment. After exposure to the environment the test sample is rubbed clean’ by a specified number of rubs using a dry cloth and the clarity and quality of the mark examined.
The samples shall be prepared as described in Clause 3.
The samples shall be exposed to an environment as specified In the relevant product standard.
Following exposure the samples shall be left at ambient conditions prior to testing as specifIed in the relevant product standard. If no time is specified samples can be tested any time after completion of exposure
All markers should be positioned directly under the rubbing member. The print shall be centrally positioned under the rubbing member.
The rubbing member shall be four layers of non-woven towel wipe cloth wrapped around a plastic former to the dimensions shown In Figure 2.
The rubbing member shall be loaded to the specified weight.
— The standard minimum weight shall be 0,9 kg.
The rub test shall be conducted at ambient temperature: (23 ± 2) °C. The number of cycles shall be as specified.
— The minimum number of cycles shall be 20.
After performing the rub test the sample shall be examined for print legibility (see section 5.4).
When using the non-woven towel wipe cloth It should be changed after each test to prevent wear or contamination.
6.3 Test method C print permanence – Wet wipe test
This method Is used to demonstrate the resistance of the mark when the product is cleaned. This is simulated by the dry sample being rubbed with a doth soaked in the specified cleaning fluid following which the clarity and quality of the mark examined.
The samples shall be prepared as described in Clause 3.
All markers should be positioned directly under the rubbing member. The print shall be centrally positioned under the rubbing member.
The rubbing member shall be four layers of non-woven towel wipe cloth wrapped around a plastic former to the dimensions shown in Figure 2.
Immediately prior to test fully immerse rubbing member (non-woven towel wipe cloth mounted on plactir holder) in specified cleaning fluid.
The rubbing member shall be loaded to the specified weight.
— The standard minimum weight shall be 0.9 kg.
The rub test shall be conducted at ambient temperature: (23 ± 2) The number of cycles shall be as specified.
— The minimum number of cycles shall be 20.
After performing the rub test the sample shall be examined for print legibility (see section 5.4).BS/EN 6059-407-2019 pdf download.