美国斯毕尔公司阀门标准
Spears® Valve Standards

　　标准为产品性能和一致性提供更大的保障，可以提供有关的标准以帮助设计工程师编制系统规范说明书。最常引用的塑料管道系统行业标准是美国材料实验协会的标准规范和实践。与美国材料实验协会标准一起的，还有其他产品规范和认证标准，这些标准及规范一起构成美国斯毕尔公司制造的阀门一致性的基础。
　　Standards provide greater assurance of product performance and consistency, and are available to assist design engineers in system specification. The most frequently referenced industry standards for plastic piping systems are ASTM Standard Specifications and Practices. Along with ASTM Standards, additional product specifications and certifications form the basis of product conformance to which Spears® valves are manufactured.

各个标准概览
Individual Standards Overview

　　ASTM - 美国材料实验协会
　　ASTM - American Society for Testing and Materials

　　ASTM D 1784
　　ASTM D 1784

　　规范用于制造热塑性塑料阀门、管道和管件的PVC和CPVC材料所要求的化合物物理特性。这个标准按照几项物理和化学特性对化合物进行分类。要与具体的材料分类相一致就要求满足规范的最低要求。
　　Specifies compound physical requirements for PVC and CPVC materials used in the manufacture of thermoplastic valves, pipe, and fittings. The standard classifies compounds on the basis of several physical and chemical properties. Conformance to a particular material classification requires meeting the minimum requirements specified.

　　ASTM D 1785 和 F 441　　
　　ASTM D 1785 and F 441

　　规范物理尺寸，测试要求，和最大工作压力，适用于Schedule 40，80和120 PVC(D 1785)和CPVC (F 441)压力管道。
　　Specifies physical dimensions, test requirements, and maximum operating pressures, for Schedule 40, 80 and 120 PVC (D 1785) and CPVC (F 441) pressure pipe.

　　ASTM D 2466 和 F 438
　　ASTM D 2466 and F 438

　　规范Schedule 40 PVC (D 2466)和CPVC (F 438)压力管件的物理尺寸，测试要求和工艺。
　　Specifies physical dimensions, test requirements, and workmanship for Schedule 40 PVC (D 2466) and CPVC (F 438) pressure fittings.

　　ASTM D 2464和F 437
　　ASTM D 2464 and F 437

　　这些标准已经分别融入ASTM D 2467和F 439中。
　　These standards have been incorporated into ASTM D 2467 and F 439, respectively.

　　ASTM D 2467和F 439
　　ASTM D 2467 and F 439

　　规范Schedule 80 PVC (D 2467)和CPVC (F 439)压力管件的物理尺寸，测试要求和工艺。
　　Specifies physical dimensions, test requirements, and workmanship for Schedule 80 PVC (D 2467) and CPVC (F 439) pressure fittings.

　　ASTM D 2564, F 493, 和F 656
　　ASTM D 2564, F 493, and F 656

　　规范对于PVC (D 2564)和CPVC (F 493)液状粘固剂的要求，包括化合物的构成，最小含脂率，粘性，以及物理特性。标准F 656规范对于用在PVC液状粘固剂上的底漆的要求。
　　Specifies requirements for PVC (D 2564) and CPVC (F 493) solvent cement, including component compounds, minimum resin content, viscosity, and physical performance. Standard F 656 specifies requirements for primers to be used with PVC solvent cements.

　　ASTM D 2846
　　ASTM D 2846

　　规范CPVC冷热水分配系统，通常被称为CTS（铜管口径）的物理尺寸，测试要求和工艺。
　　Specifies physical dimensions, test requirements, and workmanship for CPVC Hot-and-Cold Water Distribution Systems, commonly referred to as CTS (Copper Tube Size).

　　ASTM D 4101
　　ASTM D 4101

　　规范按照物理特性对喷射模塑法和聚丙烯（PP）挤塑级材料的分类。要与具体的材料分类相一致就要求满足规范的最低要求。
　　Specifies classification of injection molding and extrusion grades of Polypropylene (PP) materials according to physical characteristics. Conformance to a particular material classification requires meeting the minimum requirements specified.

　　ASTM F 1498
　　ASTM F 1498

　　规范塑料管道和管件上的锥形管道螺纹的尺寸和测量方法。
　　Specifies dimensions and gauging of tapered pipe threads on plastic pipe and fittings.

　　ASTM F 1970
　　ASTM F 1970

　　规范球阀和止回阀等产品的性能标准测试和连接端口尺寸。
　　Specifies performance criteria testing, and end connection dimensions for products such as ball valves and check valves.

　　ANSI - 美国国家标准协会
　　ANSI - American National Standards Institute

　　ANSI B1.20.1
　　ANSI B1.20.1

　　规范通用锥管螺纹（金属）的基本螺纹形式，锥度，以及公差。
　　Specifes basic thread form, taper, and tolerances of general purpose tapered pipe threads (metal).

　　ANSI B16.5
　　ANSI B16.5

　　规范压力等级Class 150钢管法兰的标准螺栓孔布局类型和主要尺寸。
　　Specifies standard bolt hole patterns and basic dimensions for Class 150 steel pipe flanges.

　　NSF - 美国国家卫生基金会
　　NSF - National Sanitation Foundation

　　美国国家卫生基金会NSF是第三方产品认证机构，主要是对制造厂产品在健康和产品性能标准等方面进行测试。NSF是用在饮用水上的塑料管道系统产品最权威的认证机构之一。
　　NSF is a third party product approval agency which tests manufacturer's product against a variety of health and product performance standards. They are one of the most recognized agencies for issuing approval of plastic piping system products for potable water use.

　　NSF标准14
　　NSF Standard 14

　　认证产品用于饮用水的适用性，产品是否与现有的美国材料实验协会ASTM标准相一致，以及确定制造厂从例行检验到设备检查全过程质量管理程序的最低标准。
　　Certifies product suitability for potable water use, product conformance to applicable ASTM standards, and establishes minimum requirements for manufacturer's quality control programs through routine testing and facilities inspections.

　　NSF标准14特殊工程附件程序(S.E.)
　　NSF Standard 14 Special Engineering Appurtenance Program (S.E.)

　　除了标准14的普通要求以外，特殊工程附件程序S.E.对不能直接适用于现有的美国材料实验协会ASTM规格的产品建立起性能要求。美国国家卫生基金会NSF的S.E.规格将可适用的ASTM规格部分和制造厂设计规格组合起来作为一致性认证标准。
　　In addition to Standard 14 general requirements, the S.E. program establishes product performance requirements where no directly applicable ASTM specifications exist. NSF S.E. specifications are developed from a combination of applicable portions of ASTM specifications and manufacturer's design specifications as a standard for conformance verification.

　　NSF标准61
　　NSF Standard 61

　　专用于接触饮用水的产品，规定控制这些产品潜在的不利健康影响的最低要求。通过对污染或杂质的毒性检验来认证用于饮用水的产品的适用性。美国国家卫生基金会NSF标准61符合NSF标准14认证的前提条件。
　　Developed to establish minimum requirements for the control of potential adverse health effects from products in contact with drinking water. Certifies product suitability for use in potable water systems through toxicological testing for contaminates or impurities. NSF Standard 61 compliance is a prerequisite to NSF Standard 14 certification.