BS EN 2576 pdf free download
BS EN 2576 pdf free download. Aerospace series – Bolts, MJ threads, in heat resisting steel FE-PA2601 [A286)一 Classification: 900 MPa [at ambient temperature)/650 °C- Technical specification.
3.8 minor defect defect that is not likely to reduce materially the usability of the considered product for its intended purpose, or that is a departure from established specification having little bearing on the effective use or operation of this product 3.9 sampling plan plan according to which one or more samples are taken in order to obtain information and possibly to reach a decision 3.10 limiting quality LQ10 quality level in a sampling plan which corresponds to a specified and relatively low probability of acceptance, in this case 10 % probability of acceptance Note 1 to entry: It is the limiting lot quality characteristic that a lot of this quality would occur. 3.11 acceptance quality limit AQL quality limit which in a sampling plan corresponds to a specified but relatively high probability of acceptance Note 1 to entry: It is the maximum per cent defective [or the maximum number of defects per hundred units) that, for purposes of sampling inspection can be considered satisfactory as a process average. 3.12 finished bolt bolt ready for use, inclusive of any possible treatments and/or surface coatings, as specified in the product standard or definition document 3.13 ; definition document document specifying all the requirements for finished bolts 4 Quality assurance 4.1 Qualification The qualification procedure for aerospace standard products [e. g. according to EN 9133 or an equivalent aerospace accepted and established qualification procedure) shall be used and documented according to the specified tests if not otherwise agreed between customer and supplier. Qualification inspections and tests (requirements, methods, number of bolts) are specified in Table 1. They shall be carried out on: 一each type and diameter of bolt; -25 bolts selected from a single inspection lot by simple random sampling.The test programme may possibly be reduced, or the qualification of a bolt be granted without inspection or testing: any such decision shall be based on the results obtained on similar types and diameters of bolts provided that the design and manufacturing conditions are identical. Table 2 indicates the allocation of bolt samples for the inspections and tests. 4.2 Acceptance 4.2.1 Purpose The purpose of acceptance inspections and tests is to check, as simply as possible, by a method representative of actual use conditions, with the uncertainty inherent to statistical sampling, that the bolts constituting the batch satisfy the requirements of this standard. 4.2.2 Conditions Acceptance inspections and tests (requirements, methods, number of bolts) are specified in Table 1; they shall be carried out on each batch. Bolts from the batch to be tested shall be selected by simple random sampling. Each bolt may be submitted to several inspections or tests. If a more stringent inspection is deemed necessary, all or part of the qualification inspections and tests may be performed during the acceptance inspection and testing. In this case, the number of bolts submitted to these inspections and tests is the same as that submitted for qualification inspection and tests.4.2.3 Responsibility Acceptance inspections and tests shall be carried out by the manufacturer, or under his responsibility. 4.2.4 Inspection and test report A test report showing actual numerical values shall be provided if specified in the purchase order.BS EN 2576 pdf download.
