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Test Method 213.2 - Booster Seats

Issued: October 1, 2008


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TABLE OF CONTENTS

1. Introduction

2. Test Devices to be Used for the Dynamic Test

3. Dynamic Tests

3.1 Test Acceleration
3.2 Test Conditions
3.3 Positioning of the ATD and Installation of the Booster Seat for the Dynamic Test
3.4 Test Procedure

4. Energy Absorbing Material Test Procedure

TABLE OF FIGURES

Figure 1 — Three-dimensional Schematic View and Side View of the Standard Seat Assembly Indicating the Location of the Seat Belts Anchorage Points

Figure 2 — Test Platform Acceleration Graph

LIST OF REFERENCED DOCUMENTS

Drawing Package “NHTSA Standard Seat Assembly; FMVSS No. 213, No. NHTSA-213-2003” as amended by “Transport Canada Modifications to the NHTSA Standard Seat Assembly”, dated August, 2009

Society of Automotive Engineers Recommended Practice J211-1, Instrumentation for Impact Test (July 2007)

U.S. Code of Federal Regulations (October 1, 2007), Title 49, Part 572, Subparts I, N and S (Hybrid II 6-Year-Old, Hybrid III 6-Year-Old and Hybrid III 6-Year-Old Weighted respectively)

ASTM International:

Standard Specification for Flexible Cellular Materials—Sponge or Expanded Rubber, Designation No. D1056-00

Standard Specification for Flexible Cellular Materials—Vinyl Chloride Polymers and Copolymers (Open-Cell Foam), Designation No. D1565­81 (Reapproved 1990)

Standard Test Methods for Flexible Cellular Materials—Slab, Bonded, and Molded Urethane Foams, Designation No. D3574­08

1.

Introduction

Test Method 213.2 — Booster Seats (October 2008) is to be used for demonstrating compliance with the requirements of Part 4 to the Motor Vehicle Restraint Systems and Booster Seats Safety Regulations (RSSR).



(Original signed by)

Director, Standards Research and Development
for the Minister of Transport
Infrastructure and Communities
Ottawa, Ontario

2.

Test Devices to be Used for the Dynamic Test

2.1 The seat to be used for the dynamic tests prescribed in this test method is the standard seat assembly, as described in Drawing Package “NHTSA Standard Seat Assembly, FMVSS No. 213, No. NHTSA-213-2003”, amended by “Transport Canada Modifications to the NHTSA Standard Seat Assembly”, dated August, 2009. The seat shown in Figure 1, which indicates the location of the seat belts anchorage points, is mounted on a dynamic test platform so that the Seat Orientation Reference Line (SORL) is parallel to the direction of travel of the test platform and any movement between the base of the assembly and the platform is prevented.

figure 1(a) — Three-dimensional Schematic View and Side View of the Standard Seat Assembly Indicating the Location of the Seat Belt Anchorage Points
figure 1 — Three-dimensional Schematic View and Side View of the Standard Seat Assembly Indicating the Location of the Seat Belt Anchorage Points

Notes:
1. Dimensions are in mm, except where otherwise indicated.
2. Drawings are not to scale.
3. Lap belt anchorage points are symmetrically located with respect to the centre SORL.
4. Maximum distance from the seat bight to the end of the buckle is 175 mm.
5. User-Ready Tether Anchorage point on the rear package shelf is located 544 mm right or left of the vertical longitudinal plane containing the centre SORL.
6. Head excursion limit is 813 mm.
7. Knee excursion limit is 915 mm.

Figure 1 — Three-dimensional Schematic View and Side View of the Standard Seat Assembly Indicating the Location of the Seat Belts Anchorage Points

2.2 The test platform shall be instrumented with an accelerometer that is linked to a data processing system, and the accelerometer-sensitive axis shall be parallel to the direction of travel of the test platform. The data shall be filtered with a Class 60 filter, as specified in the Society of Automotive Engineers Recommended Practice (SAE) J211-1, Instrumentation for Impact Test (July 2007).

2.3 Type 2 seat belt assemblies that meet the requirements of section 209 of the Motor Vehicle Safety Regulations and whose webbing is not more than 50 mm (2 inches) wide shall be attached, without the use of retractors or reels of any kind, to the seat belts anchorage points provided on the standard seat assembly.

2.4 For the dynamic test, select all anthropomorphic test devices (ATD) specified in paragraphs (a) and (b), as required, for testing a booster seat for use by persons whose mass and height are within the ranges indicated in the statement referred to in paragraph 4.10(1)(e) of the RSSR.

(a) A booster seat that is designed to be used either by persons in a specified mass range that includes any persons having a mass of at least 18 kg but not greater than 22.7 kg, or by persons in a specified height range that includes any persons whose height is of at least 1 100 mm but not greater than 1250 mm shall be tested with:

(i) the Hybrid III 6-year-old ATD conforming to the U.S. Code of Federal Regulations (October 1, 2007), Title 49, Part 572, subpart N, or

(ii) Until August 1, 2010, with the Hybrid II 6-year-old child ATD conforming to the U.S. Code of Federal Regulations (October 1, 2007), Title 49, Part 572, subpart I.

(b) A booster seat that is designed to be used either by persons in a specified mass range that includes any persons having a mass greater than 22.7 kg, or by persons in a specified height range that includes any persons whose height is greater than 1 100 mm shall be tested with:

(i) the Hybrid III 6-year-old ATD conforming to the U.S. Code of Federal Regulations (October 1, 2007), Title 49, Part 572, subpart N, or until August 1, 2010, with the Hybrid II 6-year-old child ATD conforming to the U.S. Code of Federal Regulations (October 1, 2007), Title 49, Part 572, subpart I, and

(ii) the weighted 6-year-old ATD conforming to the U.S. Code of Federal Regulations (October 1, 2007), Title 49, Part 572, subpart S.

2.4.1 The clothing of any ATD, as specified in subsection 2.4.2, other than the shoes, shall be machine washed in water that is 71°C to 82°C and machine dried at 49°C to 60°C for 30 minutes.

2.4.2 The clothing of any ATD used in the dynamic test shall consist of:

(a) For the Hybrid II 6-year-old child ATD, subpart I, a thermal knit, waffle-weave polyester and cotton underwear or equivalent, a size-5 long-sleeved shirt having a mass of 0.090 kg, a size-4 pair of long pants having a mass of 0.090 kg and cut off just far enough above the knee to allow the knee target point to be visible, and children’s size 12½ M sneakers with rubber toe caps, uppers of Dacron and cotton or nylon and a total mass of 0.453 kg each.

(b) For the Hybrid III 6-year-old child ATD, subpart N, and the Hybrid III 6-year-old weighted child ATD, subpart S, light-weight cotton stretch short-sleeve shirt and above-the-knee pants, and size 12½ M sneakers with rubber toe caps, uppers of Dacron and cotton or nylon and a total mass of 0.453 kg each.

2.4.3 For the purposes of the dynamic test, any ATD used shall be conditioned as follows:

(a) When using the Hybrid II 6-year-old child ATD, subpart I, at any ambient temperature from 19°C to 25.5°C and at any relative humidity from 10 percent to 70 percent, for at least 4 hours.

(b) When using the Hybrid III 6-year-old child ATD, subpart N, and the Hybrid III 6-year-old weighted child ATD, subpart S, at any ambient temperature from 20.6°C to 22.2°C and at any relative humidity from 10 per cent to 70 per cent, for at least 4 hours.

3.

Dynamic Tests

The dynamic test is to be conducted in accordance with the procedure set out in subsections 3.3 and 3.4 of this test method using a new booster seat attached to the standard seat assembly as shown in Figure 1 by means of a Type 2 seat belt assembly, installed to either configuration of appropriate anchorage points.

3.1 Test Acceleration

The dynamic tests simulates a frontal barrier impact and is at a velocity change of 48 km/h with the acceleration of the test platform entirely within the corridor shown in Figure 2.


figure 2 — Test Platform Acceleration Graph

Figure 2 — Test Platform Acceleration Graph

3.2 Test Conditions

For the dynamic test, the ambient temperature shall be

(a) for the Hybrid II 6-year-old ATD, subpart I, from 19°C to 26°C and the relative humidity from 10 per cent to 70 per cent.

(b) for the Hybrid III 6-year-old ATD, subpart N and the Hybrid III
6-year-old weighted ATD, subpart S, from 20.6°C to 22.2°C and the relative humidity from 10 per cent to 70 per cent.

3.3 Positioning of the ATD and Installation of the Booster Seat for the Dynamic Test

3.3.1 In accordance with the manufacturer’s instructions, place a new booster seat on the standard seat assembly, except that only the lap and shoulder belt is used to fasten the booster seat. No tether strap or any other supplemental device is used to attach the booster seat to the standard seat assembly. Place the booster seat such that it is centred between the lap belt anchor positions. Position the base of the booster rearward as far as possible against the seat back of the standard seat assembly by pushing the booster seat rearward until the intersection of the booster’s back and bottom contacts the intersection of the standard seat assembly back and base cushion.

3.3.2 Any ATD placed in the booster seat shall be positioned in accordance with the manufacturer’s instructions while conforming to the following:

3.3.2.1 For the Hybrid III 3-year-old child ATD, subpart P, the Hybrid II 6-year-old child ATD, subpart I, the Hybrid III 6-year-old child ATD, subpart N, and the Hybrid III 6-year-old weighted child ATD, subpart S:

(a) Holding the torso upright until it contacts the seat back of the booster seat or the standard seat assembly, as applicable, seat the ATD in the booster seat so that the mid-sagittal plane of its head is vertical and parallel to the SORL of the standard seat assembly.

(b) Lift the arms of the ATD as far upward as possible. Extend the legs of the ATD as far forward horizontally as possible, with its feet perpendicular to the centreline of the lower legs.

(c) Using a flat, square surface with an area of 2 580 mm2, apply a force of 178 N perpendicular to the plane of the back of the standard seat assembly, first against the crotch of the ATD and then against the mid-sagittal plane of its thorax.

(d) Tighten the lap portion of the seat belt, to a tension, as measured by a force gauge used on the webbing, of not less than 53.5 N and not more than 67 N.

(e) Tighten the shoulder portion of the seat belt, to a tension, as measured by a force gauge used on the webbing, of not less than 9 N and not more than 18 N.

(f) Rotate each limb of the ATD downward in a plane parallel to its mid-sagittal plane until the limb touches a surface of the child restraint system or the standard seat assembly. Position the limbs so that they will not inhibit the movement of the torso or head during the test.

3.4 Test Procedure

3.4.1 Accelerate the test platform in accordance with the requirements of subsection 3.1.

3.4.2 Determine the conformance of the booster seat to the requirements of section 4.08 of the RSSR.

4.

Energy Absorbing Material Test Procedure

4.1 Prepare and test specimens of energy absorbing material in accordance with the applicable 25 per cent compression-deflection test described in one of the following American Society for Testing and Materials (ASTM) Standards:

- Standard Specification for Flexible Cellular Materials—Sponge or Expanded Rubber, Designation No. D1056­00;

- Standard Specification for Flexible Cellular Materials—Vinyl Chloride Polymers and Copolymers (Open-Cell Foam), Designation No. D1565­81 (Reapproved 1990); or

- Standard Test Methods for Flexible Cellular Materials—Slab, Bonded, and Molded Urethane Foams, Designation No. D3574­08.

4.2 Determine the conformance of the test specimens to the requirements of section 4.07 of the RSSR.

Date modified:
2010-05-14