在1994年和2001年，对美国供水商进行了关于 他们使用磷酸盐抑制剂。回应指向 广泛使用磷酸盐抑制剂，包括聚磷酸盐， 正磷酸盐、正磷酸锌和磷酸盐 混合。从1994年到2001年，许多受访者从 聚/正磷酸盐共混成正磷酸盐，这一趋势被视为 因为聚磷酸盐化合物已经被证明是有益的 在某些情况下对金属腐蚀有害。 尽管许多供水商使用磷酸盐抑制剂，但很少有人使用 进行任何科学测试以确定 他们的特殊情况。在选择磷酸盐时 然而，大多数公用事业公司依赖供应商数据或 在另一个工厂取得了化学成功。即使是在大型公用事业公司 管理者们意识到抑制剂的潜在缺点，许多人说 不知道磷酸盐化学物质的确切成分 他们正在使用。 调查结果表明，许多公用事业公司正在遭受相当大的损失 添加抑制剂的成本，无需直接证明该化学品的毒性 它们在特定的水中的功效。了解如何以及为什么 使用抑制剂是帮助公用事业发展的第一步 实现腐蚀控制多样化目标的有效策略 以及水质。还需要更多的支持来帮助公用事业 对抑制剂的使用做出明智的决定。供水商需要 要了解他们使用磷酸盐抑制剂的情况，请检查他们使用磷酸盐抑制剂的原因 使用磷酸盐，并根据硬数据选择磷酸盐 以及它们各自的水环境。 包括44个参考文献、表格和图表。

In 1994 and 2001, US water providers were surveyed about their use of phosphate inhibitors. Responses pointed to widespread use of phosphate inhibitors, including polyphosphate, orthophosphate, zinc orthophosphate, and phosphate blends. From 1994 to 2001, a number of respondents shifted from poly/orthophosphate blends to orthophosphate, a trend viewed as beneficial because polyphosphate compounds have been shown to be detrimental to metal corrosion under some circumstances. Although many water suppliers used phosphate inhibitors, few conducted any scientific tests to determine the applicability of inhibitors to their particular circumstances. In selecting a phosphate inhibitor, most utilities relied on vendor data or reports of chemical success at another facility. Even at larger utilities, where managers were aware of potential drawbacks of inhibitors, many did not know the exact composition of the phosphate chemicals they were using. Survey results indicate that many utilities are incurring considerable costs to add inhibitors without direct proof of the chemical's efficacy in their particular water. Understanding how and why inhibitors are used is the first step toward helping utilities develop effective strategies to meet the diverse goals of corrosion control and water quality. More support is also needed to help utilities make informed decisions about inhibitor use. Water providers need to look at their phosphate inhibitor use, examine their reasons for using phosphates, and base their phosphate selection on hard data and their individual water conditions. Includes 44 references, tables, figures.