ISO 13216-3:2018 PDF

Road vehicles — Anchorages in vehicles and attachments to anchorages for child restraint systems — Part 3: Classification of child restraint system and space in vehicle

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Title (English):

ISO 13216-3:2018

Road vehicles — Anchorages in vehicles and attachments to anchorages for child restraint systems — Part 3: Classification of child restraint system and space in vehicle

Document status:: Active
Format:: Electronic (PDF)
Number of pages:: 25
Publication date:: October 18, 2018
Edition:: ISO IS 13216 edition 2 version 1
ICS:: 43.040.80

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Description (English):

This document classifies the spatial requirements in a vehicle to enable a child restraint system (CRS) to be conveniently mounted. It also specifies the dimensions of child restraint systems, to ensure that they will fit in vehicles. A classification scheme is provided to determine dimensional compatibility between child restraint systems and the available space at specified seating positions in vehicles. The dimensional requirements refer to forward-facing child restraint systems of three size categories, rearward-facing child restraint systems of three size categories, and lateral-facing child restraint systems of two categories. This edition of the document also incorporates size classification of booster systems.

Technical details

Technical committee: ISO/TC 22/SC 36 - Safety and impact testing
SKU: ISO 13216-3:2018

Abstract

Overview

ISO 13216-3:2018 - "Road vehicles - Anchorages in vehicles and attachments to anchorages for child restraint systems - Part 3" specifies how to classify the spatial compatibility between vehicles and child restraint systems (CRS). The standard defines child restraint envelopes and fixtures (CRF), maximum CRS dimensions, and a classification scheme so manufacturers, OEMs and testing labs can determine whether a given CRS will fit a specific vehicle seating position. The 2018 edition also incorporates booster system envelopes and updated lateral- and rearward-facing envelopes.

Key topics and technical requirements

Classification of CRS and vehicle space
- Three size categories for forward‑facing CRS, three for rearward‑facing CRS, and two for lateral‑facing CRS.
- Booster envelopes added (ISO/B1, ISO/B2, ISO/B3) for booster seat/cushion size classification.
Child restraint envelopes and CRF
- Envelopes simulate CRS geometry for dimensional compatibility checks; CRFs are physical implementations used in vehicle testing.
- CRF masses recommended for realistic seat compression (examples from the standard: R1 = 10 ±1 kg, R3 = 13 ±1 kg, B1 = 3 ±1 kg).
Vehicle installation and assessment rules
- Seat adjustment requirements when checking fit (e.g., seat to rearmost and lowest positions; front seat mid‑position for rear seating checks).
- Typical CRS pitch angle for checks: 15° ± 10°.
- Interference criteria: envelope must be accommodated without significant contact with head restraints, dashboards, windshields or front seats.
Virtual assessment
- Use of CAD and virtual tools is permitted provided they represent physical installation parameters (mass, center of gravity, seat compression).
Marking and consumer guidance
- Informative Annex A suggests marking schemes for vehicle seating positions and CRS dimensions to help consumers choose compatible products.

Practical applications and users

Vehicle manufacturers (OEMs) - design seat geometry and ISOFIX/anchorage locations to accommodate common CRS envelopes.
Child restraint manufacturers - size and mark CRS to show dimensional class compatibility with vehicles.
Test laboratories and conformity assessors - perform physical and virtual compatibility checks using CRFs and envelope definitions.
Regulators and standards bodies - adopt classification for vehicle type approvals and consumer safety information.
Consumers and retailers - use vehicle/CRS markings and classifications to select dimensionally compatible child seats and boosters.

Related standards

ISO 13216-1:1999 - Seat bight anchorages and attachments (normative reference for anchorage positioning and geometry).
Other parts of the ISO 13216 series for ISOFIX and anchorage requirements.

Keywords: ISO 13216-3:2018, child restraint system, CRS, child restraint envelope, CRF, ISOFIX, booster system, vehicle seating compatibility, CRS dimensions.

Related standards

Mentioned in the description and other ISO standards

Abstract

Overview

Key topics and technical requirements

Classification of CRS and vehicle space
- Three size categories for forward‑facing CRS, three for rearward‑facing CRS, and two for lateral‑facing CRS.
- Booster envelopes added (ISO/B1, ISO/B2, ISO/B3) for booster seat/cushion size classification.
Child restraint envelopes and CRF
- Envelopes simulate CRS geometry for dimensional compatibility checks; CRFs are physical implementations used in vehicle testing.
- CRF masses recommended for realistic seat compression (examples from the standard: R1 = 10 ±1 kg, R3 = 13 ±1 kg, B1 = 3 ±1 kg).
Vehicle installation and assessment rules
- Seat adjustment requirements when checking fit (e.g., seat to rearmost and lowest positions; front seat mid‑position for rear seating checks).
- Typical CRS pitch angle for checks: 15° ± 10°.
- Interference criteria: envelope must be accommodated without significant contact with head restraints, dashboards, windshields or front seats.
Virtual assessment
- Use of CAD and virtual tools is permitted provided they represent physical installation parameters (mass, center of gravity, seat compression).
Marking and consumer guidance
- Informative Annex A suggests marking schemes for vehicle seating positions and CRS dimensions to help consumers choose compatible products.

Practical applications and users

Vehicle manufacturers (OEMs) - design seat geometry and ISOFIX/anchorage locations to accommodate common CRS envelopes.
Child restraint manufacturers - size and mark CRS to show dimensional class compatibility with vehicles.
Test laboratories and conformity assessors - perform physical and virtual compatibility checks using CRFs and envelope definitions.
Regulators and standards bodies - adopt classification for vehicle type approvals and consumer safety information.
Consumers and retailers - use vehicle/CRS markings and classifications to select dimensionally compatible child seats and boosters.

Related standards

ISO 13216-1:1999 - Seat bight anchorages and attachments (normative reference for anchorage positioning and geometry).
Other parts of the ISO 13216 series for ISOFIX and anchorage requirements.

Keywords: ISO 13216-3:2018, child restraint system, CRS, child restraint envelope, CRF, ISOFIX, booster system, vehicle seating compatibility, CRS dimensions.

ISO 13216-3:2018 PDF

Technical details

Abstract

Overview

Key topics and technical requirements

Practical applications and users

Related standards

Related standards

Abstract

Overview

Key topics and technical requirements

Practical applications and users

Related standards

Related standards

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