1.1 本取样实施规程涵盖了从成捆或袋装的大量油脂、拉毛或擦洗过的羊毛或相关动物纤维中获取样品的程序，以通过类似于试验方法中所述的程序测定存在的清洁羊毛纤维 D584 . 1.2 本规程描述了合适的岩芯取样设备、取样程序和确定要钻孔的包装数量以及从每个取样包装中取出的岩芯数量的方法。 1.3 对于许多类型的原毛，给出了包装之间和包装内存在的清洁羊毛纤维百分比的标准差的可靠估计。 1.4 以英寸-磅为单位的数值应视为标准值。括号中给出的值是到国际单位制的数学转换，仅供参考，不被视为标准值。 1.5 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、健康和环境实践，并确定监管限制的适用性。 1.6 本国际标准是根据世界贸易组织技术性贸易壁垒（TBT）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》中确立的国际公认标准化原则制定的。 ====意义和用途====== 5.1 在适用的情况下，芯样取样被广泛接受，以获得代表大量包装原毛中存在的清洁羊毛纤维的实验室样品。 5.2 如果羊毛包装松散，无法切割芯样，或者如果羊毛被高度压缩，采样工具无法很容易地渗透到包装中达到所需深度和方向，则不适用芯样采样。大多数类型的商业包装中的羊毛密度适合通过这种方法进行采样。 5.3 本规程中描述的程序适用于统计方法的应用，以估计以最低成本达到所需样本精度水平所需的样本大小。 注1: 本规程中使用的基本采样设备、操作程序和统计方法已适用于对大量羊毛进行采样，以确定不受钻孔影响的其他性能，如平均纤维直径，以及对包装中的大量其他散装纤维进行采样。 图1 小直径羊毛取样工具（美国海关总署） （可以通过将英寸乘以25.4来计算公制当量，以获得以毫米为单位的等效尺寸。）

1.1 This practice for sampling covers a procedure for obtaining samples from lots of grease, pulled, or scoured wool or related animal fibers in bales or bags for the determination of the clean wool fiber present by a procedure similar to that described in Test Method D584 . 1.2 This practice provides a description of suitable core sampling equipment, the sampling procedure, and the method for determining the number of packages to be bored and the number of cores to be taken from each sampled package. 1.3 Reliable estimates are given for the standard deviation of the percentage clean wool fiber present between packages and within packages for lots of many types of raw wool. 1.4 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. 1.5 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. 1.6 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 Core sampling is widely accepted, when applicable, for obtaining a laboratory sample representative of the clean wool fiber present in a lot of packaged raw wool. 5.2 If the wool is so loosely packed that a core cannot be cut, or if it is so highly compressed that the sampling tool cannot readily penetrate into the package to the required depth and in the required direction, core sampling is not applicable. The density of wool in most types of commercial packages is suitable for sampling by this method. 5.3 The procedure described in this practice is adapted to the application of statistical methods for estimating the size of sample required to achieve a required level of sample precision at minimum cost. Note 1: The basic sampling equipment, operating procedure, and statistical approach used in this practice have been adapted for sampling lots of wool for the determination of other properties that are not affected by boring, such as average fiber diameter, and for sampling lots of other bulk fibers in packages. FIG. 1 Small Diameter Wool Sampling Tool (United States Customs Service) (Metric equivalents may be calculated by multiplying inches by 25.4 to obtain equivalent dimensions in millimetres.)