1.1 本规范提供了适用于亚轨道车辆乘员安全的系统安全工程和故障容限要求。 1.2 本规范无意为不影响乘员安全的条件提供故障容限要求。例如，导致设施损坏、车辆损坏、任务目标损失或对公共安全产生不利影响的条件（这些条件对乘员安全没有影响）不符合本规范中确定的要求。本规范不解决恶意攻击软件系统引起的故障。 1.3 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。 1.4 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。

1.1 This specification provides system safety engineering and failure tolerance requirements applicable to occupant safety for suborbital vehicles. 1.2 This specification is not intended to provide failure tolerance requirements for conditions that do not impact occupant safety. For example, conditions resulting in facility damage, vehicle damage, loss of mission objectives, or adverse impact to public safety that do not also have an impact to occupant safety are not subject to the requirements identified in this specification. This specification does not address malfunctions caused by malicious attacks on software systems. 1.3 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. 1.4 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.