{"id":460054,"date":"2024-10-20T10:07:32","date_gmt":"2024-10-20T10:07:32","guid":{"rendered":"https:\/\/pdfstandards.shop\/product\/uncategorized\/bs-en-iso-235812024\/"},"modified":"2024-10-26T18:42:36","modified_gmt":"2024-10-26T18:42:36","slug":"bs-en-iso-235812024","status":"publish","type":"product","link":"https:\/\/pdfstandards.shop\/product\/publishers\/bsi\/bs-en-iso-235812024\/","title":{"rendered":"BS EN ISO 23581:2024"},"content":{"rendered":"

This document specifies a procedure for the determination of kinematic viscosity, ?, by calculation from dynamic viscosity, ?, and density, ?, of both transparent and opaque liquid petroleum products and crude oils using the Stabinger type viscometer. The result obtained using the procedure described in this document depends on the rheological behaviour of the sample. This document is predominantly applicable to liquids whose shear stress and shear rate are proportional (Newtonian flow behaviour). If the viscosity changes significantly with the shear rate, comparison with other measuring methods is not possible except at similar shear rates. The precision has been determined only for the materials, density ranges and temperatures described in Clause 13. The test method can be applied to a wider range of viscosity, density, temperature and materials. It is possible that the precision and bias are applicable for materials which are not listed in Clause 13.<\/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
2<\/td>\nundefined <\/td>\n<\/tr>\n
11<\/td>\n7.1 Sampling
7.2 Sample handling
7.2.1 General sample handling
7.2.2 Conditioning of residual fuel oils <\/td>\n<\/tr>\n
12<\/td>\n8.1 General
8.2 Instrument <\/td>\n<\/tr>\n
13<\/td>\n10.1 Measuring procedure <\/td>\n<\/tr>\n
14<\/td>\n10.2 Manual filling and cleaning using syringes
10.3 Manual filling using sample displacement <\/td>\n<\/tr>\n
15<\/td>\n10.4 Automatic filling and cleaning by a sample changer\/sample handler
10.5 Procedure for temperature scanning <\/td>\n<\/tr>\n
16<\/td>\n11.1 Kinematic viscosity, dynamic viscosity and density
11.2 Viscosity index
11.3 Density extrapolation <\/td>\n<\/tr>\n
17<\/td>\n13.1 Repeatability, r
13.2 Reproducibility, R <\/td>\n<\/tr>\n
18<\/td>\n13.3 Bias
13.3.1 General <\/td>\n<\/tr>\n
19<\/td>\n13.3.2 Degree of agreement between results by test method ASTM D7042 and test method ASTM D445 <\/td>\n<\/tr>\n
20<\/td>\n13.4 Interlaboratory study <\/td>\n<\/tr>\n<\/table>\n","protected":false},"excerpt":{"rendered":"

Petroleum products and related product. Determination of kinematic viscosity. Method by Stabinger type viscometer<\/b><\/p>\n\n\n\n\n
Published By<\/td>\nPublication Date<\/td>\nNumber of Pages<\/td>\n<\/tr>\n
BSI<\/b><\/a><\/td>\n2024<\/td>\n26<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n","protected":false},"featured_media":460064,"template":"","meta":{"rank_math_lock_modified_date":false,"ep_exclude_from_search":false},"product_cat":[2641],"product_tag":[],"class_list":{"0":"post-460054","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\/460054","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\/460064"}],"wp:attachment":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/media?parent=460054"}],"wp:term":[{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_cat?post=460054"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_tag?post=460054"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}