ISO 11121:2017规定了培训机构在休闲潜水中介绍水肺体验的最低课程内容要求。在任何情况下，这些要求都不被视为潜水者培训和资格认证的标准。 ISO 11121:2017适用于将参与者带入开放水域环境的项目。它不适用于仅在受限水环境（如游泳池）中进行的项目。 ISO 11121:2017还规定了提供该服务的条件，补充了ISO 24803中规定的休闲潜水服务的一般要求。

ISO 11121:2017 specifies minimum programme content requirements for training organizations for introductory scuba experiences in recreational scuba diving. Under no conditions are these requirements considered to be a standard for the training and qualification of scuba divers. ISO 11121:2017 applies to programmes that include participants being taken into an open water environment. It does not apply to programmes that are exclusively conducted in a confined water environment (e.g. swimming pools). ISO 11121:2017 also specifies the conditions under which this service is to be provided, which supplement the general requirements for recreational diving services specified in ISO 24803.