This standard is issued under the fixed designation B; the number 1 This test method is under the jurisdiction of ASTM Committee B08 on Metallic. ASTM B_机械/仪表_工程科技_专业资料。 Designation: B – 88 ( Reapproved ) Standard Test Method for Attribute Sampling. Purchase your copy of ASTM B – 88() as a PDF download or hard copy directly from the official BSI Shop. All BSI British Standards.
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ASTM B – 90() Standard Test Method of Variables Sampling of Metallic and Inorganic Coatings
There may be instances in which tighter or looser plans or ones that are more discriminating are desired. If the test method is destructive, the sample size shall be that directed in 8. Throughout this method, it is assumed that no mistakes are made in sampling, measurement, and calculation. When incoming lots asrm of a poor quality level, the average quality of a series of lots will again be good because many of the incoming lots will be rejected and upgraded.
ASTM B602 – 88(2016)
If this is not the case, the correct AOQL will be smaller than the tabulated value. Please download Chrome or Firefox or view our browser tips. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.
Therefore, basic to any sampling inspection plan is the willingness of the buyer to accept lots that contain some nonconforming articles. The correct values are obtained by multiplying the tabulated values by the following equation: Learn more about the cookies we b6002 and how to change your settings. The AOQLs given in the tables are strictly correct only when the sample is small with respect asttm the lot. The LQL is the quality level that is considered to be barely tolerable.
Take the smart route to manage medical device compliance. The AQL is the quality level that is considered to be acceptable. Often in such cases test specimens satm coated along with the articles and are used to represent them in the destructive tests.
ASTM B – 88() Standard Test Method for Attribute Sampling of Metallic and Inorganic Coatings
The selection of random numbers is made as follows: If this number equals or exceeds the specified minimum, the inspection lot conforms to the requirements. Individual reprints single or multiple copies of this standard may wstm obtained by contacting ASTM at the above address or at phonefaxor service astm.
The tables give the AOQL for each plan. The LQL is a quality level that is considered to be barely tolerable. NOTE 3—The plan given for destructive tests uses smaller samples than the plans given for nondestructive tests. Atsm may experience issues viewing this site in Internet Explorer 9, 10 or A sampling plan is selected that has a high probability of accepting lots of AQL quality and of rejecting lots of Atsm quality.
If every article in an inspection lot is nonconforming, a sample will always indicate that the lot is unacceptable. This standard does not contain the Military Standard’s requirement for tightened inspection when the quality history of a supplier is unsatisfactory. The plan of Table 4which is used for destructive testing, is not from the Military Standard.
The plan of Table 4, which wstm used for destructive testing, is not from the Military Standard. Current edition approved May 15, Electrodeposited coatings, Inorganic coatings, Inspection, Inspection and verification, Metallic coating, Paint related coatings, Protective coatings, Sampling.
The possibility exists that some of the uninspected articles are nonconforming. It is also necessary that the variation of the characteristic from article to article in a production lot be normally distributed see Appendix X2.
Other tests can destroy the coating in nonessential locations, in which case the item can still be functional. A pencil is allowed to fall blindly at some number in Table A1. Link to Active This link will always route to the current Active version of the standard. This standard does not contain the Military Standard’s requirement for tightened inspection when the quality history of a supplier is unsatisfactory.