ISO/DIS 21351

Space systems — Functional and technical specifications

General information

Current stage: 40.20 DIS ballot initiated: 12 weeks Jul 30, 2026

Originator: ISO

Owner: ISO/TC 20/SC 14 Space systems and operations

Type: International Standard

ICS: 49.140 Space systems and operations

Scope

ISO 21351:2005 provides an overview of the respective purposes and positions of functional and technical specifications, their required contents, and the process for developing these documents.
ISO 21351:2005 is applicable to all types of space systems, all product elements, and projects.

Life cycle

PREVIOUSLY

PUBLISHED
ISO 21351:2005

NOW

IN_DEVELOPMENT
ISO/DIS 21351
40.20 DIS ballot initiated: 12 weeks
Jul 30, 2026