1.1 these requirements describe a test method measuring the resistance of protective materials to rapid-temperature-rise fires.
1.1 本文规定了一个量测防护材料在快速升温火环境下耐火性能的实验方法.
1.2 the test method covers a full-scale fire exposure, intended to evaluate the thermal
resistance of protective material applied to structural members and the ability of the protective material to withstand the fire exposure.
1.2 实验方法包含一个全尺寸火灾实验,用来评价应用于结构构件的防护材料的耐热性能和耐火性能.
1.3 the test method also covers a small-scale fire exposure, intended to evaluate the ability of protective materials to withstand a variety of environmental conditions anticipated.
1.3实验方法同时也包含了一个小比例火灾实验,用来评价防护材料在多种预期环境下的耐受能力.
2 general
2.总则
2.1 units of measurement
2.1计量单位
2.1.1 values stated without parentheses are the requirement. values in parentheses are explanatory or approximate information.
2.1.1 未加括弧的数值为精确值,加注括弧的为解释值或近似值.
2.2 undated references
2.2没有标注日期的内容
2.2.1 any undated reference to a code or standard appearing in the requirements of this standard shall be interpreted as referring to the latest edition of that code or standard.
2.2.1 在本标准中出现的任何没有标注日期的准则或规范都可认为是参照最新版本的准则或规范。
阀门制造厂应提供阀门最大破坏扭矩，阀轴的强度应至少按执行机构最大扭矩的1.15倍选定。    紧急切断阀的全行程关断时间不应超过1s/英寸阀门通径（如：dn = 6”的阀门，关断时间≤6s）。紧急切断阀的全行程打开时间应符合安全和工艺操作要求。气动执行机构应配有与阀轴直接相连的阀位指示器。阀的开、关位置应采用文字明确标识。执行机构与阀体的连接应符合iso 5211标准或制造厂标准。紧急切断阀的执行机构不应设置行程机械限位装置。执行机构的电子/电气部分的防爆等级不应低于安装场所的防爆等级进口刚性蝶阀防火罩for fire exposure times longer than standard, the indicated rating period is to be increased by the amount of the correction and for fire exposure times less than standard, the indicated rating period is to be similarly decreased. the correction can be expressed by the following formula:
，jsave柔性防火罩是工厂管理中一种有效保护设备的措施，它能将炼油厂、石油平台、石油化工、热电站、电器、造船厂和军工等场所因火灾而产生的危害与损失降至最低。基于特定要求，整个防火罩需确保其在不同时期能抵抗1400℃的温度。操作按钮、控制面板、指示器和自动化装置可以建立快捷，。
4.6.9  用于紧急切断阀的电磁阀应符合下列规定：
a)  电磁阀应选用直接作用式、至少5.5毫米流通孔径、316不锈钢阀体；time-temperature curve([6] hydrocarbon curve-section 3.2.3. eurocode 1, actions on structures-parts 1-2: general action-actions on structures exposed to fire-en 1991-1-2. brussels: cen; 2002.

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