{"id":343316,"date":"2024-10-20T00:05:46","date_gmt":"2024-10-20T00:05:46","guid":{"rendered":"https:\/\/pdfstandards.shop\/product\/uncategorized\/bs-iec-60605-62007-2010\/"},"modified":"2024-10-25T23:23:11","modified_gmt":"2024-10-25T23:23:11","slug":"bs-iec-60605-62007-2010","status":"publish","type":"product","link":"https:\/\/pdfstandards.shop\/product\/publishers\/bsi\/bs-iec-60605-62007-2010\/","title":{"rendered":"BS IEC 60605-6:2007 2010"},"content":{"rendered":"

Specifies procedures to verify the assumption of a constant failure rate or constant failure intensity as defined in IEC 60050(191). These procedures are applicable whenever it is necessary to verify these assumptions. This may be due to a requirement or for the purpose of assessing the behaviour in time of the failure rate or the failure intensity. The major technical changes with respect to the previous edition concern the inclusion of corrected formulae for tests previously included in a corrigendum, and the addition of new methods for the analysis of multiple items.<\/p>\n

PDF Catalog<\/h4>\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
PDF Pages<\/th>\nPDF Title<\/th>\n<\/tr>\n
4<\/td>\nCONTENTS <\/td>\n<\/tr>\n
6<\/td>\nFOREWORD <\/td>\n<\/tr>\n
8<\/td>\nINTRODUCTION <\/td>\n<\/tr>\n
9<\/td>\n1 Scope
2 Normative references
3 Terms and definitions <\/td>\n<\/tr>\n
10<\/td>\n4 Symbols <\/td>\n<\/tr>\n
11<\/td>\n5 Requirements
6 Test for constant failure rate
6.1 General remark concerning Clause 6 <\/td>\n<\/tr>\n
12<\/td>\n6.2 Statistical test for constant failure rate
Figure 1 \u2013 Tests for constant failure rate \u2013 Chart showing structure of Clause 6 <\/td>\n<\/tr>\n
13<\/td>\nTables
Table 1 \u2013 Critical value Ua as a function of a <\/td>\n<\/tr>\n
14<\/td>\n6.3 Probability plot
6.4 Total time on test plot <\/td>\n<\/tr>\n
15<\/td>\n6.5 Hazard plot <\/td>\n<\/tr>\n
16<\/td>\n6.6 Action to be taken if constant failure rate assumption is rejected <\/td>\n<\/tr>\n
17<\/td>\n7 Test for constant failure intensity
7.1 General remark concerning Clause 7
7.2 Test for constant failure intensity for a single repaired item
Figure 2 \u2013 Tests for constant failure intensity \u2013 Chart showing structure of Clause 7 <\/td>\n<\/tr>\n
18<\/td>\n7.3 Test for constant failure intensity for multiple repaired items <\/td>\n<\/tr>\n
19<\/td>\nTable 2 \u2013 Computation of times to failure for multiple repaired items <\/td>\n<\/tr>\n
20<\/td>\n7.4 M(t) plot <\/td>\n<\/tr>\n
21<\/td>\n7.5 Action to be taken if the constant failure intensity assumption is rejected
Table 3 \u2013 Quantiles for standardized normal distribution <\/td>\n<\/tr>\n
22<\/td>\nAnnex\u00a0A (informative) Examples of the procedures given in this standard
Table A.1 \u2013 Twenty ordered times to failure out of 40 tested items
Table A.2 \u2013 Accumulated times to failure <\/td>\n<\/tr>\n
23<\/td>\nTable A.3 \u2013 Time ordered sequence of failure times
Table A.4 \u2013 Accumulated times to failure <\/td>\n<\/tr>\n
24<\/td>\nTable A.5 \u2013 Eight times at which item failures occurred <\/td>\n<\/tr>\n
25<\/td>\nTable A.6 \u2013 Accumulated times to failure
Table A.7 \u2013 Failure data for multiple copy of repaired item <\/td>\n<\/tr>\n
26<\/td>\nTable A.8 \u2013 Worksheet for computations <\/td>\n<\/tr>\n
27<\/td>\nTable A.9 \u2013 Times to failure from test of non-repaired item
Table A.10 \u2013 Worksheet with calculations <\/td>\n<\/tr>\n
28<\/td>\nFigure A.1 \u2013 Probability plot to check constancy of failure rate <\/td>\n<\/tr>\n
29<\/td>\nTable A.11 \u2013 Ten ordered times with multiple modes <\/td>\n<\/tr>\n
30<\/td>\nFigure A.2 \u2013 Hazard plot to examine constancy of failure rate
Table A.12 \u2013 Worksheet and calculations <\/td>\n<\/tr>\n
31<\/td>\nTable A.13 \u2013 Failure times for three identical items of repaired item
Table A.14 \u2013 Worksheet with computations for M(t) <\/td>\n<\/tr>\n
32<\/td>\nFigure A.3 \u2013 M(t) plot for three repaired items
Table A.15 \u2013 Worksheet with computations for confidence intervals for M(t) <\/td>\n<\/tr>\n
33<\/td>\nFigure A.4 \u2013 M(t) plot with 95\u00a0% confidence intervals
Table A.16 \u2013 Confidence intervals for M(t) <\/td>\n<\/tr>\n
34<\/td>\nTable A.17 \u2013 Times to failure <\/td>\n<\/tr>\n
35<\/td>\nFigure A.5 \u2013 TTT plot to examine constancy of failure rate
Table A.18 \u2013 Worksheet and calculations <\/td>\n<\/tr>\n
36<\/td>\nAnnex\u00a0B (informative) Example of M(t) analysis for field data <\/td>\n<\/tr>\n
37<\/td>\nFigure B.1 \u2013 Population of systems in use as function of operational time <\/td>\n<\/tr>\n
38<\/td>\nFigure B.2 \u2013 Repair per month as percentage of population in use <\/td>\n<\/tr>\n
39<\/td>\nFigure B.3 \u2013 M(t) plot <\/td>\n<\/tr>\n
40<\/td>\nFigure B.4 \u2013 M(t) curve with 99\u00a0% confidence limits
Figure B.5 \u2013 Number of repairs per phone <\/td>\n<\/tr>\n
41<\/td>\nAnnex\u00a0C (informative) Preparation of field data for M(t) analysis <\/td>\n<\/tr>\n
45<\/td>\nBibliography <\/td>\n<\/tr>\n<\/table>\n","protected":false},"excerpt":{"rendered":"

Equipment reliability testing – Tests for the validity and estimation of the constant failure rate and constant failure intensity<\/b><\/p>\n\n\n\n\n
Published By<\/td>\nPublication Date<\/td>\nNumber of Pages<\/td>\n<\/tr>\n
BSI<\/b><\/a><\/td>\n2010<\/td>\n48<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n","protected":false},"featured_media":343320,"template":"","meta":{"rank_math_lock_modified_date":false,"ep_exclude_from_search":false},"product_cat":[2641],"product_tag":[],"class_list":{"0":"post-343316","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_cat-bsi","8":"first","9":"instock","10":"sold-individually","11":"shipping-taxable","12":"purchasable","13":"product-type-simple"},"_links":{"self":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product\/343316","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/types\/product"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/media\/343320"}],"wp:attachment":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/media?parent=343316"}],"wp:term":[{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_cat?post=343316"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_tag?post=343316"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}