ISO/TC 138/SC 5
| Projekta Nr. | ISO/TS 24399:2025 |
|---|---|
| Nosaukums | <p class="MsoBodyText"><span lang="EN-GB">This document describes the time of flight diffraction (TOFD) testing of polyethylene butt fusion (BF) joints, including pipe-to-pipe, pipe-to-fitting and fitting-to-fitting joints, used for the conveyance of fluids. This document provides a test to detect imperfections such as voids, inclusions, lack of fusions, misalignment and particulate contamination in the BF joints. The document only applies to polyethylene pipes and fittings without a barrier to ultrasonic waves.</span></p> <p class="MsoBodyText"><span lang="EN-GB">This document also provides requirements for procedure qualification and guidance for personnel qualifications, which are essential for applying this test technique.</span></p> <p class="MsoBodyText"><span lang="EN-GB">This document covers the equipment, the preparation and performance of the test, the indication assessment and the reporting for polyethylene BF joints.</span></p> <p class="MsoBodyText"><span lang="EN-GB">Acceptance criteria are not covered in this document.</span></p> <p class="Note"><span lang="EN-GB">NOTE 1<span style="mso-tab-count: 1;"> </span> At present, laboratory experiences exist on the use of TOFD for polyethylene butt fusion joints and/or reference blocks of wall thickness between 8 mm to 100 mm.<sup>[</sup><sup>1</sup><sup>][</sup><sup>2</sup><sup>][</sup><sup>3</sup><sup>][</sup><sup>4</sup><sup>][</sup><sup>5</sup><sup>][</sup><sup>6</sup><sup>]</sup> Field experience on butt fusion joints in high density polyethylene (HDPE) pipes has been reported.<sup>[</sup><sup>7</sup><sup>]</sup></span></p> <p class="Note"><span lang="EN-GB">NOTE 2<span style="mso-tab-count: 1;"> </span>Interlaboratory testing has shown that TOFD is a viable method for enhancing the integrity assessment of butt fusion joints.<sup>[</sup><sup>13</sup><sup>]</sup></span></p> |
| Reģistrācijas numurs (WIID) | 78716 |
| Darbības sfēra | <p class="MsoBodyText"><span lang="EN-GB">This document describes the time of flight diffraction (TOFD) testing of polyethylene butt fusion (BF) joints, including pipe-to-pipe, pipe-to-fitting and fitting-to-fitting joints, used for the conveyance of fluids. This document provides a test to detect imperfections such as voids, inclusions, lack of fusions, misalignment and particulate contamination in the BF joints. The document only applies to polyethylene pipes and fittings without a barrier to ultrasonic waves.</span></p> <p class="MsoBodyText"><span lang="EN-GB">This document also provides requirements for procedure qualification and guidance for personnel qualifications, which are essential for applying this test technique.</span></p> <p class="MsoBodyText"><span lang="EN-GB">This document covers the equipment, the preparation and performance of the test, the indication assessment and the reporting for polyethylene BF joints.</span></p> <p class="MsoBodyText"><span lang="EN-GB">Acceptance criteria are not covered in this document.</span></p> <p class="Note"><span lang="EN-GB">NOTE 1<span style="mso-tab-count: 1;"> </span> At present, laboratory experiences exist on the use of TOFD for polyethylene butt fusion joints and/or reference blocks of wall thickness between 8 mm to 100 mm.<sup>[</sup><sup>1</sup><sup>][</sup><sup>2</sup><sup>][</sup><sup>3</sup><sup>][</sup><sup>4</sup><sup>][</sup><sup>5</sup><sup>][</sup><sup>6</sup><sup>]</sup> Field experience on butt fusion joints in high density polyethylene (HDPE) pipes has been reported.<sup>[</sup><sup>7</sup><sup>]</sup></span></p> <p class="Note"><span lang="EN-GB">NOTE 2<span style="mso-tab-count: 1;"> </span>Interlaboratory testing has shown that TOFD is a viable method for enhancing the integrity assessment of butt fusion joints.<sup>[</sup><sup>13</sup><sup>]</sup></span></p> |
| Statuss | Standarts spēkā |
| ICS grupa | 23.040.60 23.040.20 |