BS ISO 29061-3:2017 pdf download

BS ISO 29061-3:2017 pdf download.Road vehicles — Methods and criteria for usability evaluation of child restraint systems and their interface with vehicle anchorage systems
1 Scope
This document specifies the criteria for judgement of usability of child restraint systems (CRS) when installing them with the vehicle seat belts.
This document provides criteria for judgement of:
— ease of availability of instructions;
— clarity of instruction manual and labelling; and
— ease of use of design related features of the CRS related to the installation in a vehicle.
NOTE Booster system usability evaluation is covered by ISO 29061‑5.
2 Normative references
There are no normative references in this document.
3 Terms and definitions
For the purposes of this document, the following terms and definitions apply.
ISO and IEC maintain terminological databases for use in standardization at the following addresses:
— IEC Electropedia: available at http://www.electropedia.org/
— ISO Online browsing platform: available at http://www.iso.org/obp
3.1 audible
capability of being heard in normal environmental conditions
3.2 child restraint system
CRS
free‑standing device intended to provide child vehicle occupants with an approved restraint
Note 1 to entry: CRSs comprise various categories such as car beds, infant restraints, toddler seats (forward and rearward‑facing), booster cushions, and booster seats. Combination products may cover two or more of these product categories.
4 Usability evaluation procedure and scoring principles
4.1 Evaluation procedure
This document provides a procedure to evaluate the usability of child restraint systems, equipped with integral harness or shield, intended to be installed in the vehicle using the vehicle seat belts. The procedure evaluates ease of availability of instructions, clarity of instruction manual and labelling, and the ease of use of design‑related features of the CRS related to the installation in a vehicle.
The assessment is done in two steps:
— a separate assessment of the child restraint system; and
— ausabilityassessmentwheninstallingthechildrestraintsysteminspecifiedvehicleseatingpositions.
The evaluation takes into consideration the various modes of installation and conversions between installation modes. The usability protocol is intended to be objective and repeatable.
The evaluation is most easily accomplished using a team of two people having basic knowledge of child restraints and being familiar with the technical terms used. However, they should preferably be unfamiliar with the CRS model to be evaluated.
The procedure for all three aspects of the process, the child restraint, the vehicle seating position, and the resulting interface, takes about 45 min.
The materials necessary include:
— the usability evaluation form (in either paper or electronic format);
— the vehicle owner’s manual;
— the child restraint manual, including instruction video if applicable; and
— a screwdriver, or a simple prying/turning tool.
A copy of the terms and definitions from this document may also be helpful.
Initially, the child restraint should be in the condition as supplied to the consumer. The evaluation process includes all the steps, including assembly, to complete the installation.