1.1这些实践包括为测试目的和地质研究获得的岩芯样品的保存、运输、储存、编目、检索和测试后处理。 1.2这些做法适用于硬岩和软岩，但不包括冰和永久冻土。 1.3这些做法不适用于挥发性气体成分变化、孔隙流体污染或机械应力松弛影响堆芯预期用途的情况。 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 本实践提供了一组用于执行一个或多个特定操作的指令。 本文件不能取代教育或经验，应与专业判断结合使用。并非本惯例的所有方面都适用于所有情况。本ASTM标准不代表或取代必须根据其判断给定专业服务的充分性的谨慎标准，也不应在不考虑项目的许多独特方面的情况下应用本文件。文字 “ 标准 ” 在本文件标题中，仅表示该文件已通过ASTM共识程序获得批准。 1.6 本标准无意解决与其使用相关的安全问题。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。 ====意义和用途====== 岩芯样品的地质特征和预期用途决定了所需保存的程度和类型。如果要确定岩芯的工程特性，则必须以这样的方式进行处理和保存，即从岩芯从岩芯钻孔中回收到进行测试，测量的特性不会受到机械损伤、化学变化以及湿度和温度环境条件的显著影响。钻芯也是钻孔位置地下地质的样本记录，因此必须保存一段时间，在某些情况下是无限期的，以供将来的地质研究。 这些实践提出了一系列适用于大多数项目的策展要求。 给出了各种岩石类型和项目类型的要求，从小到大，从非临界到临界。非关键项目是指元件或结构的失效将导致可忽略的伤害和财产损失风险，而关键结构和项目失效后对财产和生命有很大风险的项目。为特定项目应遵循的具体要求的选择提供了指导。

1.1 These practices cover the preservation, transportation, storage, cataloging, retrieval, and post-test disposition of rock core samples obtained for testing purposes and geologic study. 1.2 These practices apply to both hard and soft rock, but exclude ice and permafrost. 1.3 These practices do not apply to those situations in which changes in volatile gas components, contamination of the pore fluids, or mechanical stress relaxation affect the intended use for the core. 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 practice offers a set of instruction for performing one or more specific operations. This document cannot replace education or experience and should be used in conjunction with professional judgement. Not all aspects of this practice may be applicable in all circumstances. This ASTM standard is not intended to represent or replace the standard of care by which the adequacy of a given professional service must be judged, nor should this document be applied without consideration of a project's many unique aspects. The word “ Standard ” in the title of this document means only that the document has been approved through the ASTM consensus process. 1.6 This standard does not purport to address the safety problems 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. ====== Significance And Use ====== The geologic characteristics and the intended use of the rock core samples determine the extent and type of preservation required. If engineering properties are to be determined for the core, it must be handled and preserved in such a way that the measured properties are not significantly influenced by mechanical damage, changes in chemistry, and environmental conditions of moisture and temperature, from the time that the core is recovered from the core drill until testing is performed. Drill core is also the sample record for the subsurface geology at the borehole location, and as such must be preserved for some period of time, in some cases indefinitely, for future geologic study. These practices present a selection of curatorial requirements which apply to the majority of projects. The requirements are given for a variety of rock types and project types ranging from small to large and from noncritical to critical. Noncritical projects are those in which failure of an element or the structure would result in negligible risk of injury and property loss, while there is great risk to property and life after failure of critical structures and projects. Guidance is given for the selection of those specific requirements which should be followed for a given project.