ISO/TC 45/SC 4/WG 2

Project No.ISO 4633:2023
Title<p class="MsoBodyText"><span lang="EN-GB">This document specifies requirements for materials used in vulcanized rubber seals for the following:</span></p> <p class="ListNumber1" style="mso-list: l0 level1 lfo1;"><!-- [if !supportLists]--><span lang="EN-GB" style="mso-fareast-font-family: Cambria; mso-bidi-font-family: Cambria;"><span style="mso-list: Ignore;">a)<span style="font: 7.0pt 'Times New Roman';">       </span></span></span><!--[endif]--><span lang="EN-GB">cold drinking-water supplies (up to 50 °C);</span></p> <p class="ListNumber1" style="mso-list: l0 level1 lfo1;"><!-- [if !supportLists]--><span lang="EN-GB" style="mso-fareast-font-family: Cambria; mso-bidi-font-family: Cambria;"><span style="mso-list: Ignore;">b)<span style="font: 7.0pt 'Times New Roman';">       </span></span></span><!--[endif]--><span lang="EN-GB">drainage, sewerage, and rainwater systems (continuous flow up to 45 °C and intermittent flow up to 95 °C).</span></p> <p class="MsoBodyText"><span lang="EN-GB">The different designations of seals specified are defined according to their type, application, and requirements (see <a href="#Table_tab_5">Table 5</a>).</span></p> <p class="MsoBodyText"><span lang="EN-GB">General requirements for finished joint seals are also given; any additional requirements called for by the particular application are specified in the relevant product standards, taking into account that the performance of pipe joints is a function of the seal material properties, seal geometry, and pipe joint design. This document is intended to be used, where appropriate, with product standards which specify performance requirements for joints.</span></p> <p class="MsoBodyText"><span lang="EN-GB">This document is applicable to joint seals for all pipeline materials, including iron, steel, clay, fibre cement, concrete, reinforced concrete, plastics, and glass-reinforced plastics.</span></p> <p class="MsoBodyText"><span lang="EN-GB">It is applicable to elastomeric components of composite or non-composite seals. In the case of composite seals for materials of hardness ranges from 76 IRHD-M to 95 IRHD-M, the requirements for elongation at break, compression set, and stress relaxation apply only when the material is participating in the sealing function or in the long-term stability of the seal.</span></p> <p class="MsoBodyText"><span lang="EN-GB">Joint seals made with an enclosed void as part of their design are included in the scope of this document.</span></p>
Registration number (WIID)82602
Scope<p class="MsoBodyText"><span lang="EN-GB">This document specifies requirements for materials used in vulcanized rubber seals for the following:</span></p> <p class="ListNumber1" style="mso-list: l0 level1 lfo1;"><!-- [if !supportLists]--><span lang="EN-GB" style="mso-fareast-font-family: Cambria; mso-bidi-font-family: Cambria;"><span style="mso-list: Ignore;">a)<span style="font: 7.0pt 'Times New Roman';">       </span></span></span><!--[endif]--><span lang="EN-GB">cold drinking-water supplies (up to 50 °C);</span></p> <p class="ListNumber1" style="mso-list: l0 level1 lfo1;"><!-- [if !supportLists]--><span lang="EN-GB" style="mso-fareast-font-family: Cambria; mso-bidi-font-family: Cambria;"><span style="mso-list: Ignore;">b)<span style="font: 7.0pt 'Times New Roman';">       </span></span></span><!--[endif]--><span lang="EN-GB">drainage, sewerage, and rainwater systems (continuous flow up to 45 °C and intermittent flow up to 95 °C).</span></p> <p class="MsoBodyText"><span lang="EN-GB">The different designations of seals specified are defined according to their type, application, and requirements (see <a href="#Table_tab_5">Table 5</a>).</span></p> <p class="MsoBodyText"><span lang="EN-GB">General requirements for finished joint seals are also given; any additional requirements called for by the particular application are specified in the relevant product standards, taking into account that the performance of pipe joints is a function of the seal material properties, seal geometry, and pipe joint design. This document is intended to be used, where appropriate, with product standards which specify performance requirements for joints.</span></p> <p class="MsoBodyText"><span lang="EN-GB">This document is applicable to joint seals for all pipeline materials, including iron, steel, clay, fibre cement, concrete, reinforced concrete, plastics, and glass-reinforced plastics.</span></p> <p class="MsoBodyText"><span lang="EN-GB">It is applicable to elastomeric components of composite or non-composite seals. In the case of composite seals for materials of hardness ranges from 76 IRHD-M to 95 IRHD-M, the requirements for elongation at break, compression set, and stress relaxation apply only when the material is participating in the sealing function or in the long-term stability of the seal.</span></p> <p class="MsoBodyText"><span lang="EN-GB">Joint seals made with an enclosed void as part of their design are included in the scope of this document.</span></p>
StatusStandarts spēkā
ICS group83.140.50
91.140.80
91.140.60