{"id":321436,"date":"2024-10-19T22:14:36","date_gmt":"2024-10-19T22:14:36","guid":{"rendered":"https:\/\/pdfstandards.shop\/product\/uncategorized\/bs-iso-23212017\/"},"modified":"2024-10-25T20:40:10","modified_gmt":"2024-10-25T20:40:10","slug":"bs-iso-23212017","status":"publish","type":"product","link":"https:\/\/pdfstandards.shop\/product\/publishers\/bsi\/bs-iso-23212017\/","title":{"rendered":"BS ISO 2321:2017"},"content":{"rendered":"

This International Standard specifies methods of test for determining general physical and mechanical properties of rubber threads, as well as specific mechanical properties of such threads in contact with fabrics. Owing to the comparatively small cross-section and the unusual conditions of service of this material, certain special methods have been developed.<\/p>\n

Some of the tests included in this International Standard may not be entirely suitable for threads made from certain synthetic rubbers (e.g. urethane rubber). These tests are intended for natural or synthetic polyisoprene rubbers.<\/p>\n

It is pointed out that comparisons may only be made on new rubber threads or on those with identical processing histories. In the interpretation of results from threads which have been subjected to spooling, fabrication or any other process, it should be borne in mind that the previous history is important, and what is known of this and of any relaxation treatments used shall be stated in the test report.<\/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
PDF Pages<\/th>\nPDF Title<\/th>\n<\/tr>\n
2<\/td>\nNational foreword <\/td>\n<\/tr>\n
8<\/td>\nForeword <\/td>\n<\/tr>\n
9<\/td>\n1 Scope
2 Normative references
3 Terms and definitions <\/td>\n<\/tr>\n
11<\/td>\n4 Conditioning of samples or test pieces
5 Count
5.1 Sectional count <\/td>\n<\/tr>\n
12<\/td>\n5.2 Conventional count (size number)
5.3 Apparatus <\/td>\n<\/tr>\n
13<\/td>\n5.4 Procedure
5.4.1 Cutting out the test pieces <\/td>\n<\/tr>\n
14<\/td>\n5.4.2 Weighing the test pieces
5.5 Expression of results
6 Metric yield
6.1 Procedure <\/td>\n<\/tr>\n
15<\/td>\n6.2 Expression of results
7 Properties of rubber threads
8 Density
8.1 Principle <\/td>\n<\/tr>\n
16<\/td>\n8.2 Method
8.2.1 Method A
8.2.2 Method B
9 Tensile strength, modulus and elongation at break
9.1 Apparatus <\/td>\n<\/tr>\n
17<\/td>\n9.2 Procedure
9.2.1 Test piece preparation
9.2.2 Loop formation and testing <\/td>\n<\/tr>\n
18<\/td>\n9.3 Expression of results
10 Schwartz value (SV)
10.1 Apparatus
10.2 Procedure <\/td>\n<\/tr>\n
19<\/td>\n10.3 Expression of results
11 Elongation under a specified load
11.1 Test pieces
11.2 Apparatus <\/td>\n<\/tr>\n
20<\/td>\n11.3 Procedure
11.4 Expression of results <\/td>\n<\/tr>\n
21<\/td>\n12 Stress retention
12.1 Test pieces
12.2 Apparatus
12.3 Procedure <\/td>\n<\/tr>\n
22<\/td>\n12.4 Expression of results
12.5 Test report
13 Tension set
13.1 Test piece preparation <\/td>\n<\/tr>\n
23<\/td>\n13.2 Apparatus
13.3 Procedure
13.4 Expression of results <\/td>\n<\/tr>\n
24<\/td>\n14 Accelerated ageing test on rubber threads in a relaxed state
14.1 General
14.2 Principle
14.3 Test pieces
14.4 Apparatus
14.5 Procedure
14.6 Expression of results <\/td>\n<\/tr>\n
25<\/td>\n15 Dry-heat resistance
15.1 General
15.2 Principle
15.3 Apparatus <\/td>\n<\/tr>\n
26<\/td>\n15.4 Procedure
15.5 Expression of results
15.6 Test report <\/td>\n<\/tr>\n
27<\/td>\n16 Ribbons: Degree of adhesion between threads
16.1 General
16.2 Principle
16.3 Apparatus
16.4 Test pieces
16.5 Procedure <\/td>\n<\/tr>\n
28<\/td>\n16.6 Expression of results
16.7 Test report
17 Resistance to copper staining during laundering
17.1 General <\/td>\n<\/tr>\n
29<\/td>\n17.2 Principle
17.3 Reagents
17.4 Apparatus and materials <\/td>\n<\/tr>\n
30<\/td>\n17.5 Test pieces
17.6 Preparation of test pieces
17.6.1 General
17.6.2 Individual samples of textile fabric
17.6.3 Individual textile yarns
17.6.4 Multifibre fabric swatches
17.7 Procedure <\/td>\n<\/tr>\n
31<\/td>\n17.8 Test report
18 Effect of washing
18.1 General
18.2 Principle
18.3 Apparatus <\/td>\n<\/tr>\n
32<\/td>\n18.4 Standard washing solution
18.5 Procedure <\/td>\n<\/tr>\n
33<\/td>\n18.6 Expression of results
18.7 Test report
19 Resistance to atmospheric fume staining
19.1 General <\/td>\n<\/tr>\n
34<\/td>\n19.2 Principle
19.2.1 General
19.2.2 Method A
19.2.3 Method B
19.3 Reagents
19.4 Apparatus and materials
19.4.1 Method A
19.4.2 Method B <\/td>\n<\/tr>\n
36<\/td>\n19.5 Test pieces
19.5.1 General
19.5.2 Method A
19.5.3 Method B
19.6 Procedure
19.6.1 Method A
19.6.2 Method B <\/td>\n<\/tr>\n
37<\/td>\n19.7 Test report <\/td>\n<\/tr>\n
38<\/td>\nBibliography <\/td>\n<\/tr>\n<\/table>\n","protected":false},"excerpt":{"rendered":"

Rubber threads. Methods of test<\/b><\/p>\n\n\n\n\n
Published By<\/td>\nPublication Date<\/td>\nNumber of Pages<\/td>\n<\/tr>\n
BSI<\/b><\/a><\/td>\n2017<\/td>\n40<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n","protected":false},"featured_media":321442,"template":"","meta":{"rank_math_lock_modified_date":false,"ep_exclude_from_search":false},"product_cat":[1189,2641],"product_tag":[],"class_list":{"0":"post-321436","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_cat-83-140-99","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\/321436","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\/321442"}],"wp:attachment":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/media?parent=321436"}],"wp:term":[{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_cat?post=321436"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_tag?post=321436"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}