AS ISO 9934.2 pdf download

AS ISO 9934.2 pdf download.Non-destructive testing — Magnetic particle testing
1 Scope
This part of ISO 9934 specifies the significant properties of magnetic particle testing products (including magnetic ink, powder, carrier liquid, contrast aid paints) and the methods for checking their properties.
2 Normative references
The following documents, in whole or in part, are normatively referenced in this document and are indispensable for its application. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. ISO 2160, Petroleum products一Corrosiveness to copper一Copper strip test ISO 2591-1, Test sieving一Part 1: Methods using test sieves of woven wire cloth and perforated metal plate ISO 3059, Non-destructive testing – Penetrant testing and magnetic particle testing – Viewing conditions ISO 3104, Petroleum products一Transparent and opaque liquids一Determination of kinematic viscosity and calculation of dynamic viscosity ISO 4316, Surface active agents – Determination of pH of aqueous solutions – Potentiometric method ISO 9934-1, Non-destructive testing – Magnetic particle testing – Part 1: General principle ISO 9934-3, Non-destructive testing – Magnetic particle testing – Part 3: Equipment ISO 12707, Non-destructive testing – Terminology- Terms used in magnetic particle testing EN 1330-1, Non-destructive testing一Terminology – Part 1: List of general terms EN 1330-2, Non-destructive testing- Terminology – Part 2: Terms common to the non-destructive testing methods EN 1330-7, Non-destructive testing – – Terminology 一Part 7: Terms used in magnetic particle testing . EN 10083-2, Quenched and tempered steels – Part 2: Technical delivery conditions for non-alloy steels EN 10204, Metallic products – Types of inspection documents
3 Terms and definitions
For the purposes of this document, the terms and definitions given in EN 1330-1, EN 1330-2, EN 1330-7, ISO 12707, and the following apply.
5 Classification
5.1 General The magnetic particle materials covered by this specification shall be classified as follows. 5.2 Magnetic inks Magnetic inks shall consist of finely divided coloured or fluorescent magnetic particles in a suitable carrier liquid. They shall form a uniform suspension when agitated. Magnetic inks can be produced from products supplied as concentrates, including paste and powders, or ready for use. 5.3 Powders Powders for the dry technique shall consist of finely divided coloured or fluorescent magnetic particles.
6 Testing and test certificate
6.1 Type testing and batch testing Type testing and batch testing of magnetic particle materials shall be carried out in accordance with the requirements of ISO 9934-1, ISO 9934-2, and ISO 9934-3. Type testing is carried out in order to demonstrate suitability of a product for the intended use. Batch testing is carried out in order to demonstrate conformity of the characteristics of a batch to the product type specified. . The supplier shall provide a test certificate showing compliance with this International Standard having used the methods detailed. This certificate shall include results obtained and tolerances allowed. If any changes are made to the detection media, then a new type test shall be performed. 6.2 In-service testing In-service testing is carried out to demonstrate the continued performance of the detection media.
The arrangement of the apparatus used is shown in Figure 1. The powder surface shall be evenly irradiated with UV-A at an angle of 45°土5°. Luminance shall be measured with a suitable meter with an accuracy of +10 % or better. It shall measure the luminance from the powder surface and be unaffected by areas outside of the target area. The level of irradiance shall be measured with a meter conforming to ISO 3059 with its UV sensor replacing the powder surface. The recommended arrangement is using a luminance meter with a 200 cd/m2 range and a viewing angle ([x) of 20° placed 80 mm above the plane powder surface, diameter 40 mm. UV-A lamps are placed so as to give an even irradiance at the powder surface, with Ee between 10 W/m2 and 15 W/m2.