BS EN ISO Non-destructive testing — Penetrant testing Part 2: Testing of penetrant materials. BS EN ISO Amendments issued since publication. Amd. No. Date Comments National foreword. This British Standard is the official English. Buy BS EN ISO Non-Destructive Testing – Penetrant Testing – Part 2 : Testing Of Penetrant Materials from SAI Global.
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Testing ofpenetrant materials ISO Zerst rungsfreie Pr fung – Eindringpr fung – Teil 2: Pr fungEssais des produits de ressuage ISO Up-to-date lists and bibliographical references concerning such nationalstandards may be obtained on ej to the Central Secretariat or to any CEN member.
A version in any other language made by translationunder the responsibility of a CEN member into its sn language and notified to the Central 3425-2 has the same status as the officialversions.
This European Standard shall be given the status of a national standard, either by publication of an identical text orby endorsement, at the latest by Octoberand conflicting national standards shall be withdrawn at the latest byOctober This European Standard is considered to be a supporting bbs to thoseapplication and product standards which in themselves support an essential safety requirement of a New ApproachDirective and which make reference to this European Standard. EN ISO comprises a series of European standards of penetrant testing which is made of the following: However, the Viennaagreement was applied during the work, so some European Standards have referenced them under their previousEuropean number.
The following table gives the correspondance between these different numbers. General principlesEN Part 2: It also details on site testing requirements and methods. Thesenormative references are cited at the appropriate places in the text and the publications are listed hereafter. For datedreferences subsequent amendments to, or revisions of any of these publications apply to this European Standard onlywhen incorporated in it by 3452- or revisions.
For undated reference the latest edition of the publication referredto applies. ENNon-destructive testing – Penetrant testing – Part 1: ENMetallic dn – Types of inspection documents.
BS EN ISO – Non-destructive testing. Penetrant testing. Testing of penetrant materials
Allnecessary precautions shall be observed. All relevant European, national and local regulations pertaining to healthand safety, environmental requirements, etc. Classification can be carried out as for colourcontrast systems. The test shall be carried out by an independent laboratory.
In case of penetrant material packed in spray cans, the content of sulfur and halogens shall be additionallydetermined according to 7. If any changes are made to the penetrant material composition then a new type test and product identity shall berequired. PropertyTestTest methodaccording to clauseAppearanceBatch7. Corrosive properties except formType and batch7.
Product performance, see 7. These test panels shall be reserved for the use with type I penetrants only. A visibility measuring equipment consists for example of the following elements see Annex D: The groove length should be longer than 20 mm, the groove width should be 0,15 mm — 0, mm and the depth1should be greater than 1 mm. These grooves are to be filled with a suitable powder. Allow the equipment to stabilise prior to use.
The equipment shall be set up using a standard fluorescence sample see D. The zero shall be adjusted to read zero with an unprocessed test panel from type 1 reference block.
The brightness of theindications is quantified using the discontinuity intensity measuring equipment. If it is necessary to change sensitivity ranges on a chart recorder between setting up with the standard sample andrunning the test panel, zero and full scale deflection settings shall remain unaltered. In such cases standard peakheight and sample peak heights shall be compared taking the different chart recorder sensitivities into consideration. Individual peak heights are recorded except those affected by handling, etc.
Grouped peaks “C”on figure 1 are recorded as their mean value. This information is given for the convenience of usersof this standard and does not constitute an endorsement by CEN of the product named. Test panels shall be reserved for the use with typeII penetrants only. The result shall berecorded at the temperature used for the type test.
Attention is drawn to the hazards involved in testing materials with flashpoints below 25 C. For batch testing, flashpoint measurement shall only be required if the expected flashpoint is within the range 20 C to C. The flashpoint shall be determined by an appropriate method.
Bd flashpoint for batch testing shall not be more than5 C below the nominal value. The fluorescent brightness ofeach specimen is determined as per the method in A. The fluorescent brightness of each specimen is determined as per themethod in A. This test shall becarried out at 15 C — 0,5 C.
Testpanels of each of these materials on a prepared surface that has been polished with silicon carbide paper grit and then rinsed with a volatile, sulfur-free hydrocarbon solvent e. The test panels shall be immersed to half their length in the penetrant material under test, placed in a glassbeaker of sufficient size, inside a Parr bomb calorimeter or equivalent container capable of withstanding aninternal pressure of kPa as described in figure 3.
The sealed calorimeter is then placed in an oven, or hot water bath, maintained at 50 C — 1 C for 2 hours — 5min. At the end of which time the test panel is removed and rinsed briefly under distilled water or organic solvent,as appropriate, to remove all residues of penetrant materials.
The test panel shall then be inspected. The procedure employed in 7.
BS EN ISO 3452-2:2013
These panels shall then be immersed to half of their length in thepenetrant material under test in a glass beaker. The panels shall be left for a period of 24 hours at roomtemperature after which time they shall be cleaned and inspected as per 7. In the case of products conditioned in a spray can, purge the latter for 5 s before sampling and, at the moment ofweighing, spray the content of the can into a ml beaker, then pour immediately the product into the platinumboat.
The operation shall not last more than 2 min between the start of sampling and the closing of the bombcalorimeter. Total halogen content chloride and fluoridewithout evaporation, shall be less than After this timethe mass of the residue shall be measured.
After this time themass of the residue shall be measured and recorded as a percentage of the initial mass. When used in conjunction with the appropriate penetrant, the developer shall increase the visibility of the penetrantindications.
Aerosol solids contents shall be suspended after30 s of shaking. Containers and their contents shall be compatible. Containers shall be marked with batch number in order toensure the traceability with the relevant documentation and the use-by date. Cut to 2 cm x 2 cm or asrequired to fit fluorimeter. These papers shall be kept dry in a dessiccator until use.
Close the lightproof cover and measure intensity of the emitted light when thespecimen is illuminated in the fluorimeter. This information isgiven for the convenience of users of this standard and does not constitute an endorsement by CEN ofthe product named.
In order to maintain the integrity of a penetrant process, the process as a whole and the individual components ofthe system shall be regularly checked to ensure that they meet the required standards.
This requirement is onlyapplicable to process lines since products supplied in aerosols or thixotropic penetrants will only be used for asingle inspection.
BS EN ISO 无损检验-渗透检验 第2部分：渗透材料试验 – MBA智库文档
In b some materials used in process lines can be applied to the work piece either byconventional or electrostatic spraying. Since once again the material will only be used for one inspection thesetests are not applicable. NOTEWhere some elements of the process are sprayed it does not eliminate the need for control checks onother parts of the process. It is the responsibility of a level een according to EN to decide which tests are applicable to a particular process line.
The tests may becarried out at sb frequent intervals or additional tests carried out if necessary to ensure correct processingconditions. A separate form shall be used for eachpenetrant plant. Any deviations found shall be reported to the responsible person and appropriate corrective actionmust be taken. The following information shall be included: If insufficient material is in the system, extra materialshall be added and mixed before any other tests are carried out.
It is often advantageousto also use a component with known discontinuities typical of those normally expected.
Rn record in the form of a permanent replica, photograph or other suitable means showing the discontinuitiesincluding the level of background, shall be prepared and processed using the same parameters normally in use andretained for reference. Indications from pealable developers are not the same as obtainedusing standard developers.
The indications on bx chrome plated side of the reference test block type 2 or on thecomponent with known discontinuit with those of the? Similarly the level of background shall appear thesame as that shown on the record. It is of theutmost importance not to physically modify the discontinuities.
The best way is to counteract adsorption effect on the entrapped penetrant due to the discontinuity walls by astronger capillary effect. A solvent-based non-aqueous wet developer is the right means. The following procedure shall be used: The coating shall arrive wet on the surface;d leave for 10 to 15 minutes;e repeat stages a to dlet developer remain for 30 minutes;f check for penetrant traces under adequate illumination.
If present, repeat stages a to d until all traces ofpenetrant have been removed;g finally wash with water and dry. Parts may be stored in a protective envelop to prevent scratching, twisting, anymechanical or thermal shock. Any of thesesuggests that the treatment system is not functioning effectively. When inspecting components processed with a fluorescent penetrantsystem there shall be no reflective surface, e. In addition 4352-2 shall be no stray white light sources near to the inspection area.
Record the level to which the fluorescent intensities are similar. As an alternative, the method described in 7. These reference samples shall be stored in light-proof sealed containers. Record the level to which the colour intensities are similar.