标准摘要
[中文适用范围]： 本国际标准规定了救生圈外壳的结构和尺寸。 该外壳用于包裹救生圈，以防止救生圈因自然环境而恶化并免受破坏。 [外文原描述]： ISO 18421:2016 specifies the construction and dimensions of housing for lifebuoys. The housing serves to encase a lifebuoy to protect it against deterioration from the elements and against vandalism.
英文名称Ships and marine technology — Inland navigation vessels — Lifebuoy housings