1.1 本试验方法包括在制造厂通过喷射工艺浇注玻璃纤维增强混凝土（GFRC）时，确定新浇混凝土的泵送速率。 1.2 以英寸-磅单位表示的值应被视为标准值。括号中给出的值是对国际单位制的数学转换，仅供参考，不被视为标准值。 1.3 本标准的文本是指提供解释性材料的注释和脚注。这些注释和脚注（不包括表格和图表中的注释和脚注）不应被视为本标准的要求。 1.4 本标准并不旨在解决与其使用相关的所有安全问题（如果有的话）。本标准的使用者有责任在使用前建立适当的安全、健康和环境实践，并确定监管限制的适用性。 ( 警告-- 新鲜的水硬性水泥混合物具有腐蚀性，长时间接触可能会对皮肤和组织造成化学灼伤。 ) 1.5 本国际标准是根据世界贸易组织技术性贸易壁垒委员会发布的《关于制定国际标准、指南和建议的原则的决定》中确立的国际公认的标准化原则制定的。 =====意义和用途====== 5.1 浆料流速， 通过该测试方法确定的混凝土和玻璃纤维增强材料的质量控制可用于GFRC产品的质量控制以确保制造设备已设置为提供用于生产GFRC复合材料的正确比例的混凝土和纤维增强材料。该测试方法通常与测量光纤输出速率的测试一起进行，以确保两种输入的正确比例被纳入最终产品中。 这些结果也与试验方法确定的结果进行了比较 C1229 作为整体质量控制过程的一部分。

1.1 This test method covers determination of the rate at which fresh concrete is pumped when casting glass fiber reinforced concrete (GFRC) by the spray-up process in a manufacturing plant. 1.2 The values stated in inch-pound units are to be regarded as standard. The values given in parentheses are mathematical conversions to SI units that are provided for information only and are not considered standard. 1.3 The text of this standard refers to notes and footnotes that provide explanatory material. These notes and footnotes (excluding those in tables and figures) shall not be considered as requirements of the standard. 1.4 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety, health, and environmental practices and determine the applicability of regulatory limitations prior to use.( Warning— Fresh hydraulic cementitious mixtures are caustic and may cause chemical burns to skin and tissue upon prolonged exposure. ) 1.5 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee. ====== Significance And Use ====== 5.1 Slurry Flow Rates, determined by this test method, are useful for quality control of GFRC products to ensure that manufacturing equipment has been set up to deliver the correct proportions of concrete and glass fiber reinforcement for producing a GFRC composite. This test method is typically conducted along with a test for measuring the fiber output rate to assure that the correct proportions of the two inputs are being incorporated into the final product. These results are also compared to those determined by Test Method C1229 as part of the overall quality control process.