{"id":311711,"date":"2024-10-19T21:25:38","date_gmt":"2024-10-19T21:25:38","guid":{"rendered":"https:\/\/pdfstandards.shop\/product\/uncategorized\/bs-en-iso-3072019\/"},"modified":"2024-10-25T19:20:11","modified_gmt":"2024-10-25T19:20:11","slug":"bs-en-iso-3072019","status":"publish","type":"product","link":"https:\/\/pdfstandards.shop\/product\/publishers\/bsi\/bs-en-iso-3072019\/","title":{"rendered":"BS EN ISO 307:2019"},"content":{"rendered":"

This document specifies a method for the determination of the viscosity number of dilute solutions of polyamides in certain specified solvents.<\/p>\n

The method is applicable to the polyamides designated PA 46, PA 6, PA 66, PA 69, PA 610, PA 612, PA 11, PA 12, PA 6T\/66, PA 6I\/6T, PA 6T\/6I\/66, PA 6T\/6I, PA 6I\/6T\/66 and PA MXD6 as defined in ISO 16396-1<\/span><\/span>, as well as to copolyamides, compounds of polyamides and other polyamides that are soluble in one of the specified solvents under the specified conditions.<\/p>\n

The method is not applicable to polyamides produced by anionic polymerization of lactams or produced with cross-linking agents; such polyamides are normally insoluble in the specified solvents.<\/p>\n

The viscosity number is determined by the general procedure specified in ISO 1628-1<\/span><\/span>, observing the particular conditions specified in this document.<\/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
PDF Pages<\/th>\nPDF Title<\/th>\n<\/tr>\n
2<\/td>\nNational foreword <\/td>\n<\/tr>\n
4<\/td>\nEuropean foreword <\/td>\n<\/tr>\n
6<\/td>\nForeword <\/td>\n<\/tr>\n
7<\/td>\nIntroduction <\/td>\n<\/tr>\n
9<\/td>\n1 Scope
2 Normative references
3 Terms and definitions <\/td>\n<\/tr>\n
11<\/td>\n4 Principle
5 Reagents and materials
5.1 Solvents and reagents <\/td>\n<\/tr>\n
12<\/td>\n5.2 Cleaning liquids
6 Apparatus <\/td>\n<\/tr>\n
13<\/td>\n7 Preparation of test samples
7.1 General <\/td>\n<\/tr>\n
14<\/td>\n7.2 Samples containing less than 98 % (by mass) polyamide
8 Calculation of test portion
9 Selection of solvent <\/td>\n<\/tr>\n
15<\/td>\n10 Procedure
10.1 Cleaning of the viscometer
10.2 Preparation of test solution
10.2.1 General
10.2.2 Volumetric method <\/td>\n<\/tr>\n
16<\/td>\n10.2.3 Volumetric method, in exact relation to the polymer content
10.2.4 Gravimetric method, in exact relation to the polymer content <\/td>\n<\/tr>\n
17<\/td>\n10.3 Measurement of flow times <\/td>\n<\/tr>\n
18<\/td>\n11 Expression of results <\/td>\n<\/tr>\n
19<\/td>\n12 Repeatability and reproducibility
13 Relationship between the viscosity number determined in 96 % (by mass) sulfuric acid solution and the viscosity determined in various solvents
14 Test report <\/td>\n<\/tr>\n
21<\/td>\nAnnex A (informative) Determination of the concentration of commercial sulfuric acid(95 % to 98 %) and adjustment to 96 % by titration <\/td>\n<\/tr>\n
24<\/td>\nAnnex B (informative) Determination of the concentration of sulfuric acid (95 % to 98 %) and adjustment to 96 % by flow time measurement in a small capillary viscometer <\/td>\n<\/tr>\n
26<\/td>\nAnnex C (informative) Determination of the concentration of commercial formic acid and adjustment to 90 % by titration <\/td>\n<\/tr>\n
28<\/td>\nAnnex D (informative) Determination of the concentration of commercial formic acid and adjustment to 90 % by density measurement <\/td>\n<\/tr>\n
31<\/td>\nAnnex E (informative) Relationship between the viscosity number determined in 96 % (by mass) sulfuric acid solution and the viscosity determined in various solvents <\/td>\n<\/tr>\n
43<\/td>\nBibliography <\/td>\n<\/tr>\n<\/table>\n","protected":false},"excerpt":{"rendered":"

Plastics. Polyamides. Determination of viscosity number<\/b><\/p>\n\n\n\n\n
Published By<\/td>\nPublication Date<\/td>\nNumber of Pages<\/td>\n<\/tr>\n
BSI<\/b><\/a><\/td>\n2019<\/td>\n44<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n","protected":false},"featured_media":311719,"template":"","meta":{"rank_math_lock_modified_date":false,"ep_exclude_from_search":false},"product_cat":[1179,2641],"product_tag":[],"class_list":{"0":"post-311711","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_cat-83-080-20","7":"product_cat-bsi","9":"first","10":"instock","11":"sold-individually","12":"shipping-taxable","13":"purchasable","14":"product-type-simple"},"_links":{"self":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product\/311711","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\/311719"}],"wp:attachment":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/media?parent=311711"}],"wp:term":[{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_cat?post=311711"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_tag?post=311711"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}