{"id":451781,"date":"2024-10-20T09:20:18","date_gmt":"2024-10-20T09:20:18","guid":{"rendered":"https:\/\/pdfstandards.shop\/product\/uncategorized\/bs-en-iso-13164-42023-tc\/"},"modified":"2024-10-26T17:23:50","modified_gmt":"2024-10-26T17:23:50","slug":"bs-en-iso-13164-42023-tc","status":"publish","type":"product","link":"https:\/\/pdfstandards.shop\/product\/publishers\/bsi\/bs-en-iso-13164-42023-tc\/","title":{"rendered":"BS EN ISO 13164-4:2023 – TC"},"content":{"rendered":"

This document describes a test method for the determination of radon-222 (222Rn) activity concentration in non-saline waters by extraction and liquid scintillation counting. The 222Rn activity concentrations, which can be measured by this test method utilizing currently available instruments, are above 0,5 Bq\u00b7l?1 which is the typical detection limit for a 10 ml test sample and a measuring time of 1 h. It is the responsibility of the laboratory to ensure the validity of this test method for water samples of untested matrices. Annex A gives indication on the necessary counting conditions to meet the required detection limits for drinking water monitoring.<\/p>\n

PDF Catalog<\/h4>\n\n\n\n\n\n\n\n\n\n\n\n\n\n
PDF Pages<\/th>\nPDF Title<\/th>\n<\/tr>\n
35<\/td>\nundefined <\/td>\n<\/tr>\n
42<\/td>\n3.1 Terms and definitions <\/td>\n<\/tr>\n
43<\/td>\n3.2 Symbols <\/td>\n<\/tr>\n
44<\/td>\n5.1 General
5.2 Sampling with source preparation \u201con site\u201d
5.3 Sampling without \u201con site\u201d source preparation
6.1 Reagents <\/td>\n<\/tr>\n
45<\/td>\n6.2 Apparatus
7.1 Preparation of calibration sources
7.2 Optimization of counting conditions <\/td>\n<\/tr>\n
46<\/td>\n7.3 Detection efficiency
7.4 Blank sample preparation and measurement
7.5 Sample preparation and measurement <\/td>\n<\/tr>\n
47<\/td>\n8.1 General
8.2 Variables that could influence the measurement
8.3 Instrument verification
8.4 Contamination <\/td>\n<\/tr>\n
48<\/td>\n8.5 Interference control
8.6 Method verification
8.7 Demonstration of analyst capability
9.1 General
9.2 Count rate <\/td>\n<\/tr>\n
49<\/td>\n9.3 Calculation of activity concentration per unit of mass
9.4 Combined uncertainty
9.5 Decision threshold <\/td>\n<\/tr>\n
50<\/td>\n9.6 Detection limit
9.7 Probabilistically symmetric coverage interval
9.7.1 Limits of the probabilistically symmetric coverage interval <\/td>\n<\/tr>\n
51<\/td>\n9.7.2 The shortest coverage interval
9.8 Calculations using the activity concentration <\/td>\n<\/tr>\n<\/table>\n","protected":false},"excerpt":{"rendered":"

Tracked Changes. Water quality. Radon-222 – Test method using two-phase liquid scintillation counting<\/b><\/p>\n\n\n\n\n
Published By<\/td>\nPublication Date<\/td>\nNumber of Pages<\/td>\n<\/tr>\n
BSI<\/b><\/a><\/td>\n2023<\/td>\n59<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n","protected":false},"featured_media":451791,"template":"","meta":{"rank_math_lock_modified_date":false,"ep_exclude_from_search":false},"product_cat":[2641],"product_tag":[],"class_list":{"0":"post-451781","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\/451781","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\/451791"}],"wp:attachment":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/media?parent=451781"}],"wp:term":[{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_cat?post=451781"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_tag?post=451781"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}