IEC 60884-1:2022 Clause 8.8 Figure 5 Apparatus For Durability Of Marking Automatic

Description

Detail Information

Standard: IEC 60884-1:2022 Clause 8.8 Figure 5 Shore-A Hardness: 47 ± 5 Moving Distance: 0-50mm Adjustable Force Value: 5±1N Test Time: 0-9999S Warranty: 1 Year High Light:

IEC 60884-1:2022 Clause 8.8 Figure 5 Apparatus

,

Automatic Durability Apparatus

Product Description

IEC 60884-1:2022 clause 8.8 figure 5 Apparatus for testing durability of marking – Automatic Operation   Specification: Shore-A hardness:47 ± 5Moving distance: 0-50mm can be adjustedForce value: 5±1NTest time: 0-9999S Standard: Durability Marking shall be easily legible, durable and indelible. Laser marking directly on the product and marking made by moulding, pressing or engraving are not subjected to this test. Compliance is checked by inspection, using normal or corrected vision, without additional magnification and, if necessary, by the following test. The test is done by rubbing the marking for 15 s with a piece of cotton cloth soaked with water and again for 15 s with a piece of cotton cloth soaked with n-hexane 95 % (Chemical Abstracts Service Registry Number, CAS RN, 110-54-3). NOTE n-hexane 95 % (Chemical Abstracts Service Registry Number, CAS RN, 110-54-3) is available from a variety of chemical suppliers as a high pressure liquid chromatography (HPLC) solvent. When using the liquid specified for the test, precautions as stated in the relative material safety datasheet provided by the chemical supplier shall be taken to safeguard the laboratory technicians. The marking surface to be tested shall be dried after the test with water. Rubbing shall commence immediately after soaking the piece of cotton, applying a compression force of (5 ± 1) N at a rate of about one cycle per second (a cycle comprising a forward and backward movement along the length of the marking). For markings longer than 20 mm, rubbing can be limited to a part of the marking, over a path of at least 20 mm length. The compression force is applied by means of a test piston which is wrapped with cotton comprising cotton wool covered by a piece of cotton medical gauze. The test piston shall have the dimensions specified in Figure 5 and shall be made of an elastic material which is inert against the test liquids and has a Shore-A hardness of 47 ± 5 (for example synthetic rubber). Figure 5 – Test piston dimensions When it is not possible to carry out the test on the specimens due to the shape/size of the product or the marking is not accessible with the test piston:– a suitable piece having the same characteristics as the product can be submitted to the testor– another test piston with different shape can be used on the condition that radius B is kept.