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This part of GB/T 7190 specifies the product classification, marking, requirements, test methods, inspection rules, signs, packaging, transport, storage and other relevant information of closed circuit cooling towers.
This part is applicable to the closed circuit cooling towers (hereinafter referred to as closed towers) with the circulating cooling water flowrate of a single tower no more than 500 m3/h.
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This part of GB/T 7190 specifies the product classification，marking,requirements,test method,inspection rule,sign,packaging,transport,storage and other relevant information of large open cooling towers.
This part is applicable to the counterflow and crossflow mechanical draft open cooling towers equipped with fill and the circulating cooling water flowrate of a single tower not less than 1 000 m3/h.
This part of GB/T 7190 specifies the product classification，marking，requirements，test method，inspection rule，sign，packaging，transport，storage and other relevant information of medium and small open cooling towers.
This part is applicable to counterflow and crossflow mechanical draft open cooling towers equipped with fill and the circulating cooling water flowrate of a single tower less than 1 000 m3/h.
This standard specifies the principle，sample，test apparatus，test conditions，test apparatus installation，testing procedures，result recording，test report and cautions of the membrane housing cyclic pressure test method.
This standard is applicable to the cyclic pressure test of fiber-reinforced plastic membrane housing.
本标准规定了通用型片状模塑料（以下简称SMC）的分类标记、要求、试验方法、检验规则及标志、包装、运输、贮存等。 本标准适用于玻璃纤维增强不饱和聚酯树脂的通用型片状模塑料。
本文件规定了风电叶片用真空导入环氧树脂的分类、技术要求，描述了试验方法、检验规则，规定了标志、包装、运输和贮存。
本文件适用于风电叶片用真空导入环氧树脂的生产和检验。
本文件规定了增强纱线在水泥中强度测定的原理、试验环境、材料和设备、试样、操作程序、结果计算和试验报告。
本文件适用于耐碱玻璃纤维纱、玄武岩纤维纱、碳纤维纱等增强纱线耐碱性能的评价，也适用于对新型增强纱线体系耐碱侵蚀性能和新型水泥体系碱性侵蚀的评价。其他增强纱线参照使用。
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