1.1 Use this guide in conjunction with Guide D5730. 1.2 This guide describes special problems to be considered when planning field investigations in cold regions. The primary focus of this guide is presenting the special problems and concerns of site characterization in the cold regions of the world. 1.3 Laboratory testing of soil, rock, and ground-water samples is specified by other ASTM standards that are not specifically discussed in this guide. Laboratory methods for measurement of physical properties relevant to environmental investigations are included in Guide D5730. 1.4 The values stated in SI units are to be regarded as the standard. 1.5 This guide emphasizes the care that must be taken by all field personnel during operations in tundra and permafrost areas of the world. 1.6 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.