警告1-使用本文件的人员应熟悉正常的实验室实践。 本文件并非旨在解决与其相关的所有安全问题（如有） 使用用户有责任建立适当的安全和健康实践，并 确定任何其他限制的适用性。 警告2-本文件中规定的某些程序可能涉及使用或生成 可能构成当地环境危害的物质或废物的产生。 使用后，应参考有关安全处理和处置的适当文件。本文件规定了两种测定混凝土压缩永久变形特性的方法 低温硫化橡胶和热塑性橡胶。 方法1源自ISO 815-1中使用的方法。方法2使用指定的测试设备， 允许在恢复过程中测量并记录试件厚度。由于施工期间施加的荷载 在方法2中，两种方法给出的结果之间无法建立相关性。交叉引用:ISO 18899:2013ISO 23529:2016ISO 4287ISO/TR 9272ISO 19983购买时可用的所有当前修订版均包含在本文件的购买中。

WARNING 1 — Persons using this document should be familiar with normal laboratory practice. This document does not purport to address all of the safety problems, if any, associated with its use. It is the responsibility of the user to establish appropriate safety and health practices and to determine the applicability of any other restrictions. WARNING 2 — Certain procedures specified in this document might involve the use or generation of substances, or the generation of waste, that could constitute a local environmental hazard. Reference should be made to appropriate documentation on safe handling and disposal after use.This document specifies two methods for the determination of the compression set characteristics of vulcanized and thermoplastic rubbers at low temperatures. Method 1 derives from the methodology used in ISO 815-1. Method 2 uses a specified testing device, allowing to measure and record the test piece thickness during recovery. Due to the load applied during recovery in method 2, no correlation can be established between the results given by both methods.Cross References:ISO 18899:2013ISO 23529:2016ISO 4287ISO/TR 9272ISO 19983All current amendments available at time of purchase are included with the purchase of this document.