{"id":314873,"date":"2024-10-19T21:41:29","date_gmt":"2024-10-19T21:41:29","guid":{"rendered":"https:\/\/pdfstandards.shop\/product\/uncategorized\/bs-iso-13909-72001\/"},"modified":"2024-10-25T19:48:59","modified_gmt":"2024-10-25T19:48:59","slug":"bs-iso-13909-72001","status":"publish","type":"product","link":"https:\/\/pdfstandards.shop\/product\/publishers\/bsi\/bs-iso-13909-72001\/","title":{"rendered":"BS ISO 13909-7:2001"},"content":{"rendered":"

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
PDF Pages<\/th>\nPDF Title<\/th>\n<\/tr>\n
3<\/td>\nHard coal and coke\ufffd\u2014 Mechanical sampling\ufffd\u2014 <\/td>\n<\/tr>\n
5<\/td>\nContents Page <\/td>\n<\/tr>\n
6<\/td>\nForeword <\/td>\n<\/tr>\n
7<\/td>\nIntroduction <\/td>\n<\/tr>\n
9<\/td>\nHard coal and coke\ufffd\u2014 Mechanical sampling\ufffd\u2014
1\ufffd\ufffd\ufffd Scope
2\ufffd\ufffd\ufffd Normative references
3\ufffd\ufffd\ufffd Terms and definitions <\/td>\n<\/tr>\n
10<\/td>\n4\ufffd\ufffd\ufffd General <\/td>\n<\/tr>\n
11<\/td>\n5\ufffd\ufffd\ufffd Equations relating to factors affecting precision
5.1\ufffd\ufffd\ufffd General
5.2\ufffd\ufffd\ufffd Continuous sampling <\/td>\n<\/tr>\n
12<\/td>\n5.3\ufffd\ufffd\ufffd Intermittent sampling
6\ufffd\ufffd\ufffd Estimation of primary increment variance
6.1\ufffd\ufffd\ufffd Direct determination of individual primary increments <\/td>\n<\/tr>\n
13<\/td>\n6.2\ufffd\ufffd\ufffd Determination using the estimate of precision <\/td>\n<\/tr>\n
14<\/td>\n7\ufffd\ufffd\ufffd Methods for estimating precision
7.1\ufffd\ufffd\ufffd General
7.2\ufffd\ufffd\ufffd Duplicate sampling with twice the number of increments <\/td>\n<\/tr>\n
16<\/td>\n7.3\ufffd\ufffd\ufffd Duplicate sampling during routine sampling <\/td>\n<\/tr>\n
17<\/td>\n7.4\ufffd\ufffd\ufffd Alternatives to duplicate sampling
7.5\ufffd\ufffd\ufffd Precision adjustment procedure <\/td>\n<\/tr>\n
18<\/td>\n8\ufffd\ufffd\ufffd Calculation of precision
8.1\ufffd\ufffd\ufffd Replicate sampling <\/td>\n<\/tr>\n
19<\/td>\n8.2\ufffd\ufffd\ufffd Normal sampling scheme <\/td>\n<\/tr>\n
20<\/td>\n9\ufffd\ufffd\ufffd Methods of checking sample preparation and testing errors
9.1\ufffd\ufffd\ufffd General
9.2\ufffd\ufffd\ufffd Target value for variance of sample preparation and analysis
9.2.1\ufffd\ufffd\ufffd General <\/td>\n<\/tr>\n
21<\/td>\n9.2.2\ufffd\ufffd\ufffd Off-line preparation
9.2.3\ufffd\ufffd\ufffd On-line preparation
9.3\ufffd\ufffd\ufffd Checking procedure as a whole <\/td>\n<\/tr>\n
22<\/td>\n9.4\ufffd\ufffd\ufffd Checking stages separately
9.4.1\ufffd\ufffd\ufffd General <\/td>\n<\/tr>\n
23<\/td>\n9.4.2\ufffd\ufffd\ufffd Procedure\ufffd1
9.4.2.1\ufffd\ufffd\ufffd Method
9.4.2.2\ufffd\ufffd\ufffd Calculation of variance from individual stages <\/td>\n<\/tr>\n
25<\/td>\n9.4.2.3\ufffd\ufffd\ufffd Calculation of cumulative variance at each stage <\/td>\n<\/tr>\n
26<\/td>\n9.4.3\ufffd\ufffd\ufffd Procedure\ufffd2
9.4.3.1\ufffd\ufffd\ufffd Method
9.4.3.2\ufffd\ufffd\ufffd Calculation of variance arising from individual stages <\/td>\n<\/tr>\n
27<\/td>\n9.4.3.3\ufffd\ufffd\ufffd Calculation of cumulative variance at each stage <\/td>\n<\/tr>\n
28<\/td>\n9.4.4\ufffd\ufffd\ufffd Interpretation of results <\/td>\n<\/tr>\n
29<\/td>\n9.5\ufffd\ufffd\ufffd Procedure for obtaining two samples at each stage
9.5.1\ufffd\ufffd\ufffd With a riffle
9.5.2\ufffd\ufffd\ufffd With a mechanical sample divider
9.6\ufffd\ufffd\ufffd Example <\/td>\n<\/tr>\n
33<\/td>\nVariogram method for determining variance
A.1\ufffd\ufffd\ufffd General <\/td>\n<\/tr>\n
35<\/td>\nA.2\ufffd\ufffd\ufffd Calculation and fitting the variogram
A.2.1\ufffd\ufffd\ufffd General
A.2.2\ufffd\ufffd\ufffd Variogram fit by eye
A.2.3\ufffd\ufffd\ufffd Variogram fit by linear regression
A.2.4\ufffd\ufffd\ufffd Calculation of corrected variance
A.3\ufffd\ufffd\ufffd Calculation of sampling variance <\/td>\n<\/tr>\n
36<\/td>\nA.4\ufffd\ufffd\ufffd Calculation of number of increments
A.5\ufffd\ufffd\ufffd Calculation of total variance
A.6\ufffd\ufffd\ufffd Example of calculation of sampling and total variance <\/td>\n<\/tr>\n
40<\/td>\nGrubbs’ estimators method for determining sampling precision
B.1\ufffd\ufffd\ufffd General
B.2\ufffd\ufffd\ufffd Selection of sub-lot size for measuring precision
B.3\ufffd\ufffd\ufffd Selection of number of stopped-belt increments and collection intervals
B.4\ufffd\ufffd\ufffd Off-line preparation and analysis of test samples <\/td>\n<\/tr>\n
43<\/td>\nB.5\ufffd\ufffd\ufffd Estimation of the variance of preparation and testing of system samples <\/td>\n<\/tr>\n
44<\/td>\nB.6\ufffd\ufffd\ufffd Calculation of sub-lot measurement variances for the sampling system and stopped- belt ref… <\/td>\n<\/tr>\n
46<\/td>\nB.7\ufffd\ufffd\ufffd Calculation of the overall precision of sampling, off-line preparation, and analysis <\/td>\n<\/tr>\n
47<\/td>\nB.8\ufffd\ufffd\ufffd Examination of the significance of the estimate of precision <\/td>\n<\/tr>\n
48<\/td>\nBibliography <\/td>\n<\/tr>\n<\/table>\n","protected":false},"excerpt":{"rendered":"

Hard coal and coke. Mechanical sampling – Methods for determining the precision of sampling, sample preparation and testing<\/b><\/p>\n\n\n\n\n
Published By<\/td>\nPublication Date<\/td>\nNumber of Pages<\/td>\n<\/tr>\n
BSI<\/b><\/a><\/td>\n2008<\/td>\n50<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n","protected":false},"featured_media":314876,"template":"","meta":{"rank_math_lock_modified_date":false,"ep_exclude_from_search":false},"product_cat":[2641],"product_tag":[],"class_list":{"0":"post-314873","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\/314873","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\/314876"}],"wp:attachment":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/media?parent=314873"}],"wp:term":[{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_cat?post=314873"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_tag?post=314873"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}