本文件规定了技术规定橡胶（TSR）的规范指南。根据天然橡胶含量的来源和橡胶表现出的性能，提出了一种分级系统。 本文件旨在供参与TSR采购的各方使用，并旨在形成一个基础，从中可以更详细地规定特定情况下的要求。因此，它描述了一些需要在相关方之间达成适当协议的标准。

This document specifies guidance on the specification of technically specified rubber (TSR). A grading system is proposed, based on the origin of the natural rubber content and on properties exhibited by the rubber. This document is intended for use by parties involved in the procurement of TSR and is intended to form a basis from which requirements for a particular case may be more closely specified. As such, it describes a number of criteria that need to be the subject of appropriate agreement between the interested parties.