本文件规定了确定消防系统对圆形和矩形实心钢筋耐火性贡献的试验和评估方法。ISO 834-10和ISO 834-11涵盖了其他截面形状，如角度、通道和平面。本文件不适用于双绞线或主要用于混凝土加固的冷轧或热轧钢筋。 本文件适用于最大直径为130 mm的实心钢筋的保护，对于矩形钢筋，最大边长应限制为130 mm，最大纵横比为2: 1对短边。超出这些限制，实心钢筋包含在ISO 834-10和ISO 834-11中。 本文件适用于任何应用的消防系统，包括多层系统，在地板梁和空心截面上进行负载测试时，证明其完整性/粘性，并根据ISO 834-11进行评估。 本文件不包含受拉构件加载试验的结果。附录C中提供了在拉伸荷载下对钢筋进行耐火试验的指南。 本文件包含火灾试验方法，以提供暴露在ISO 834-1规定的标准温度/时间曲线下时消防系统热特性的数据。它还包含用于分析测试数据的评估方法。 定义了火灾试验评估结果的适用范围，以及允许将结果直接应用于所测试防火系统厚度范围内的不同钢类型和尺寸。 评估程序用于确定: -根据测试钢筋得出的温度数据，在火灾测试条件下，消防系统使用的任何实际限制（物理性能）； -根据测试钢筋得出的温度数据，消防系统的热性能（热性能）。 定义了火灾试验评估结果的适用范围，以及允许将结果直接应用于所测试防火系统厚度范围内的不同钢类型和尺寸的钢筋。 本文件描述了赞助商自行决定的垂直和水平方向的测试。

This document specifies a test and assessment method for determining the contribution of fire protection systems to the fire resistance of circular and rectangular solid steel bar. ISO 834-10 and ISO 834-11 cover other section shapes such as angles, channels and flats. This document is not intended to be used for twisted wire or for cold or hot rolled steel bar which is primarily used for the reinforcement of concrete. This document is applicable for the protection of solid bar up to a maximum diameter of 130 mm and in the case of rectangular bar the maximum side length shall be limited to 130 mm with a maximum aspect ratio of 2:1 against the shorter length side. Beyond these limits, the solid steel bars are covered in ISO 834-10 and ISO 834-11. This document is intended to be used with any applied fire protection system, including multi-layered systems, that have demonstrated their integrity/stickability when tested on floor beams and hollow sections under load, and assessed in accordance with ISO 834-11. This document does not incorporate results from a loaded test on a tension member. Guidance for conducting a fire test on a steel bar under a tensile load is provided in Annex C. This document contains the fire test methodology to provide data on the thermal characteristics of the fire protection system when exposed to the standard temperature/time curve specified in ISO 834-1. It also contains an assessment method for the analysis of the test data. The limits of applicability of the results of the assessment arising from the fire test are defined together with permitted direct application of the results to different steel types and sizes over the range of thicknesses of the applied fire protection system tested. The assessment procedure is used to establish: — on the basis of temperature data derived from testing steel bars, any practical constraints on the use of the fire protection system under fire test conditions, (the physical performance); — on the basis of the temperature data derived from testing steel bars, the thermal properties of the fire protection system, (the thermal performance). The limits of applicability of the results of the assessment arising from the fire test are defined together with permitted direct application of the results to different steel types and sizes of steel bar over the range of thicknesses of the applied fire protection system tested. This document describes testing in both the vertical and horizontal orientations at the discretion of the sponsor.