1.1本规范定义了适用于热固性玻璃钢拉挤成型的标准棒、棒和形状的公差。 1.2这些尺寸公差适用于以下规定的所有形状: “ 标准 ” 拉挤成型行业。 1.3为特殊应用设计的定制形状和产品应具有特定公差，这些公差可能与标准不同，因为复合材料中使用的钢筋类型或数量的变化直接影响尺寸。公差可能比 “ 标准 ” 形状。 1.4 以下安全隐患警告仅适用于本规范第4节试验方法部分: 本标准并非旨在解决与其使用相关的所有安全问题（如有）。本标准的用户有责任在使用前制定适当的安全和健康实践，并确定监管限制的适用性。 笔记 1-没有类似或等效的ISO标准。

1.1 This specification defines tolerances applicable to standard rods, bars, and shapes pultruded from thermosetting glass-reinforced plastics. 1.2 These dimensional tolerances apply to all shapes specified as “ standard ” by the pultrusion industry. 1.3 Custom shapes and products designed for special applications shall carry specific tolerances that may vary from the standard because a change in type or amount of reinforcement used in a composite directly affects dimensions. The tolerances may be wider or tighter than associated with “ standard ” shapes. 1.4 The following safety hazards caveat pertains only to the test methods portion, Section 4, of this specification: 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 and health practices and determine the applicability of regulatory limitations prior to use. Note 1—There is no similar or equivalent ISO standard.