1.1 本规程涵盖在压力或真空条件下对玻璃钢储罐（设备）进行声发射（AE）检查或监测，以确定结构完整性。 1.2 这种做法仅限于设计在内部压力不大于1.73 MPa绝对压力[250 psia，17.3 bar]的情况下运行的储罐和容器，因为内部内容物。它也适用于设计用于差压水平在0和0.10 MPa[0和14.5 psi，1 bar]之间的真空环境的储罐和容器。 1.3 这种做法仅限于玻璃含量大于15的储罐 % 按重量计算。 1.4 本规程适用于新设备和在用设备的检查。 1.5 单位- 以国际单位制或英寸-磅单位表示的数值应视为标准值。每个系统中规定的值可能不是精确的等效值；因此，每个系统应相互独立使用。将两个系统的值合并可能会导致不符合标准。 1.6 本标准并非旨在解决与其使用相关的所有安全问题（如有）。本标准的用户有责任在使用前制定适当的安全、健康和环境实践，并确定监管限制的适用性。 1.7 本国际标准是根据世界贸易组织技术性贸易壁垒（TBT）委员会发布的《关于制定国际标准、指南和建议的原则的决定》中确立的国际公认标准化原则制定的。 ====意义和用途====== 5.1 声发射检测方法检测FRP设备中的损坏。在FRP中检测到的损伤机制如下:树脂开裂、纤维脱粘、纤维拔出、纤维断裂、分层和组装接头（例如喷嘴、人孔等）中的粘结失效。非应力区域的缺陷和结构上不重要的缺陷不会产生声发射。 5.2 这种做法便于在工作压力下在线使用，以确定在役设备的结构完整性，通常过程中断最小。 5.3 应通过其他技术检查AE的适应症；例如，视觉、超声波、染色渗透剂等，并可根据需要进行维修和测试。 维修程序建议不在本规程范围内。

1.1 This practice covers acoustic emission (AE) examination or monitoring of fiberglass-reinforced plastic (FRP) tanks-vessels (equipment) under pressure or vacuum to determine structural integrity. 1.2 This practice is limited to tanks-vessels designed to operate at an internal pressure no greater than 1.73 MPa absolute [250 psia, 17.3 bar] above the static pressure due to the internal contents. It is also applicable for tanks-vessels designed for vacuum service with differential pressure levels between 0 and 0.10 MPa [0 and 14.5 psi, 1 bar]. 1.3 This practice is limited to tanks-vessels with glass contents greater than 15 % by weight. 1.4 This practice applies to examinations of new and in-service equipment. 1.5 Units— The values stated in either SI units or inch-pound units are to be regarded as standard. The values stated in each system may not be exact equivalents; therefore, each system shall be used independently of the other. Combining values from the two systems may result in non-conformance with the standard. 1.6 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety, health, and environmental practices and determine the applicability of regulatory limitations prior to use. 1.7 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee. ====== Significance And Use ====== 5.1 The AE examination method detects damage in FRP equipment. The damage mechanisms that are detected in FRP are as follows: resin cracking, fiber debonding, fiber pullout, fiber breakage, delamination, and bond failure in assembled joints (for example, nozzles, manways, and so forth). Flaws in unstressed areas and flaws that are structurally insignificant will not generate AE. 5.2 This practice is convenient for on-line use under operating stress to determine structural integrity of in-service equipment usually with minimal process disruption. 5.3 Indications located with AE should be examined by other techniques; for example, visual, ultrasound, dye penetrant, and so forth, and may be repaired and tested as appropriate. Repair procedure recommendations are outside the scope of this practice.