Expose for additional one-week periods as necessary. Fresh solution must be used for each exposure and the initial and final p11 at room lemperature must be recorded weekly. Sec Alter the final 20x examination following ihe last test period remove the fastener and examine the crevice areas at 20x for cracking. A final examination for cracks may be perfom1ed by additionally bending the specimens until the ends of the legs touch.
This may expose tight cracks which were not previously detected. The additional bending may not be appropriate for materials which are susceptible to hydrogen embrittlement in this environment. Do not re-expose specimens after this additional bcnding. Ruptured specimens should also be examined for evidence of mechanical failure resulting from the action of applied stress on specimens whose cross sections have been reduced by general or pitting corrosion, or both.
Such failures usually show evidence of ductility. Repeat tests with thicker specimens should be made in case of doubt. VariabiliIy occurred in both repeatability and reproducibility for time-to-fail data developed using UNS S and S in an interlaboratory test program Appendix Xl.
Such variability is typical in time-to-fail data for stress-corrosion cracking tests, and is expected to preclude detection of small differences between samples. The time-to-crack values in Appendix Xl are not necessarily the maximum or minimum values which could be obtained in other testing. Every specimen of UNS S X and S3 16 X cracked within the h interlaboratory test duration while no cracking occurred for more resistant materials. It has been observed in stress-corrosion tests of various metal-alloy systems that the precision is best for tests of specimens that have either a very low probability of stress-corrosion cracking few, if any, failures in the prescribed test duration or a high probability short failure times.
The precision is least for groups of test specimens with an intermediate probability. This was observed in the interlahoratory test program. ISO pdf download. Relevant messaging concepts 4. The intent is to make use of other relevant Web Services specifications that fulfill certain messaging requirements, and build upon that base by adding what is necessary for a complete and coherent eBusiness messaging service.
In order to achieve this, message security and reliability requirements are met through the use of other Web Services standards and their implementations. The message SOAP body has been freed for business payload.
Compliance of ebMS 3 implementations with the latest version of WS-I profiles — once approved as final material by the organization — will be addressed in the definition of conformance profiles that are adjunct to this document see Annex G. Compliance with Web services standards does not remove the rationale behind an Internet-based messaging middleware.
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