{"id":307446,"date":"2024-10-19T21:05:05","date_gmt":"2024-10-19T21:05:05","guid":{"rendered":"https:\/\/pdfstandards.shop\/product\/uncategorized\/bs-iso-33412000\/"},"modified":"2024-10-25T18:42:13","modified_gmt":"2024-10-25T18:42:13","slug":"bs-iso-33412000","status":"publish","type":"product","link":"https:\/\/pdfstandards.shop\/product\/publishers\/bsi\/bs-iso-33412000\/","title":{"rendered":"BS ISO 3341:2000"},"content":{"rendered":"<p><b>1.1<\/b> This International Standard specifies a method for the determination of the tensile breaking force and elongation at break of glass yarns taken from packages.<\/p>\n<p><b>1.2<\/b> The method is applicable to various types of glass yarn (single, folded, cabled, strands, structures without twist, rovings, etc.). It is basically intended for single, folded and cabled glass yarns having a diameter of less than 2&nbsp;mm, or a linear density lower than 2&nbsp;000 tex, taken from packages. Heavier yarns may be also tested providing the test conditions are acceptable to all interested parties.<\/p>\n<p><b>1.3<\/b> The method is not applicable to glass yarns which, in equilibrium with the standard atmosphere and under a pre-tension of 5&nbsp;mN\/tex, are elongated by more than 0,5&nbsp;%. Such yarns can be tested using a lower pre-tension (for example&nbsp;2,5&nbsp;mN\/tex or 1&nbsp;mN\/tex), acceptable to all interested parties. This would occur mainly when dealing with staple-fibre yarns.<\/p>\n<blockquote>\n<p>NOTE&nbsp;1 Though the determination may be run on beamed yarn or on yarns taken from fabrics, the results must be considered as indicative only.<\/p>\n<\/blockquote>\n<blockquote>\n<p>NOTE&nbsp;2 This test method is primarily intended for material characterization and quality control. Fibre-to-fibre abrasion and other factors such as insufficiently uniform tension (catenary) will increase variability and generate low test values. This will consequently impede accurate correlation between performance of the yarns and end use applications. Extreme care should be taken in considering this method for specification purposes.<\/p>\n<\/blockquote>\n<blockquote>\n<p>NOTE&nbsp;3 Though this International Standard provides the possibility of determining the elongation at break, this practice is not recommended, however. Indeed, a correct assessment of the elongation will only be obtained using an extensometer; it will not be obtained by measuring the distance traversed by the moving clamp. On the other hand, experience shows that the use of an extensometer is quite delicate and often causes damage to the specimen.<\/p>\n<\/blockquote>\n<h4>PDF Catalog<\/h4>\n<table border=\"1px\" class=\"des-table\">\n<tr>\n<th>PDF Pages<\/th>\n<th>PDF Title<\/th>\n<\/tr>\n<tr>\n<td><b>3<b><\/td>\n<td>Textile glass\ufffd\u2014 Yarns\ufffd\u2014 Determination of breaking force and breaking elongation  <\/td>\n<\/tr>\n<tr>\n<td><b>5<b><\/td>\n<td>Contents Page  <\/td>\n<\/tr>\n<tr>\n<td><b>6<b><\/td>\n<td>Foreword  <\/td>\n<\/tr>\n<tr>\n<td><b>7<b><\/td>\n<td>Textile glass\ufffd\u2014 Yarns\ufffd\u2014 Determination of breaking force and breaking elongation <br \/> 1\ufffd\ufffd\ufffd Scope <br \/> 1.1\ufffd\ufffd\ufffd This International Standard <br \/> 1.2\ufffd\ufffd\ufffd The method is applicable to various types of glass yarn (single, folded, cabled, strands, &#8230; <br \/> 1.3\ufffd\ufffd\ufffd The method is not applicable to glass yarns which, in equilibrium with the standard atmosp&#8230; <br \/> 2\ufffd\ufffd\ufffd Normative references <br \/> 3\ufffd\ufffd\ufffd Terms and definitions  <\/td>\n<\/tr>\n<tr>\n<td><b>8<b><\/td>\n<td>4\ufffd\ufffd\ufffd Principle <br \/> 4.1\ufffd\ufffd\ufffd The breaking force and the elongation at break are determined by elongating a specimen by &#8230; <br \/> 4.2\ufffd\ufffd\ufffd The value of the breaking force per unit linear density of the yarn, i.e. the breaking str&#8230; <br \/> 5\ufffd\ufffd\ufffd Apparatus <br \/> 5.1\ufffd\ufffd\ufffd Tensile-testing machine <br \/> 5.1.1\ufffd\ufffd\ufffd The method is designed for test machines with constant rate of elongation (CRE). If othe&#8230; <br \/> 5.1.2\ufffd\ufffd\ufffd The maximum error in the indicated force, at any point in the range in which the machine&#8230; <br \/> 5.1.3\ufffd\ufffd\ufffd The design of the clamps is critical to obtaining correct breaks and consistent results&#8230;.  <\/td>\n<\/tr>\n<tr>\n<td><b>9<b><\/td>\n<td>5.1.4\ufffd\ufffd\ufffd The test machine shall be adjusted to give a constant rate of extension of <br \/> 6\ufffd\ufffd\ufffd Conditioning <br \/> 7\ufffd\ufffd\ufffd Specimens <br \/> 7.1\ufffd\ufffd\ufffd Number of specimens <br \/> 7.2\ufffd\ufffd\ufffd Selection of specimens  <\/td>\n<\/tr>\n<tr>\n<td><b>11<b><\/td>\n<td>8\ufffd\ufffd\ufffd Procedure <br \/> 8.1\ufffd\ufffd\ufffd General <br \/> 8.2\ufffd\ufffd\ufffd Determination <br \/> 8.2.1\ufffd\ufffd\ufffd After conditioning as specified in clause <br \/> 8.2.2\ufffd\ufffd\ufffd If the test machine has a pre-tensioning capability, apply to the specimen a pre-tension of <br \/> 8.2.3\ufffd\ufffd\ufffd Set the moving clamp in motion. After the specimen breaks, record the breaking force and&#8230; <br \/> 8.2.4\ufffd\ufffd\ufffd Repeat the determination on the remaining specimens. <br \/> 8.2.5\ufffd\ufffd\ufffd Disregard any results obtained with specimens that slip in the jaws, or that break in th&#8230; <br \/> 9\ufffd\ufffd\ufffd Expression of results <br \/> 9.1\ufffd\ufffd\ufffd Breaking force <br \/> 9.2\ufffd\ufffd\ufffd Elongation at break <br \/> 9.3\ufffd\ufffd\ufffd Breaking strength  <\/td>\n<\/tr>\n<tr>\n<td><b>12<b><\/td>\n<td>10\ufffd\ufffd\ufffd Precision  <\/td>\n<\/tr>\n<tr>\n<td><b>13<b><\/td>\n<td>11\ufffd\ufffd\ufffd Test report  <\/td>\n<\/tr>\n<\/table>\n","protected":false},"excerpt":{"rendered":"<p><b>Textile glass. Yarns. Determination of breaking force and breaking elongation<\/b><\/p>\n<table class=\"shortdes-table\" style=\"width: 100%\" border=\"0\" cellspacing=\"0\" cellpadding=\"0\">\n<tbody>\n<tr>\n<td>Published By<\/td>\n<td>Publication Date<\/td>\n<td>Number of Pages<\/td>\n<\/tr>\n<tr>\n<td><a href=\"https:\/\/pdfstandards.shop\/product-category\/publishers\/bsi\/\"><b>BSI<\/b><\/a><\/td>\n<td>2000<\/td>\n<td>14<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n","protected":false},"featured_media":307451,"template":"","meta":{"rank_math_lock_modified_date":false,"ep_exclude_from_search":false},"product_cat":[888,2641],"product_tag":[],"class_list":{"0":"post-307446","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_cat-59-100-10","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\/307446","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\/307451"}],"wp:attachment":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/media?parent=307446"}],"wp:term":[{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_cat?post=307446"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_tag?post=307446"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}