1216.2—Requirements for infant walkers.

(a) Except as provided in paragraph (b) of this section, each infant walker shall comply with all applicable provisions of ASTM F 977-07, Standard Consumer Safety Specification for Infant Walkers, approved April 1, 2007. The Director of the Federal Register approves this incorporation by reference in accordance with 5 U.S.C. 552(a) and 1 CFR part 51. You may obtain a copy from ASTM International, 100 Bar Harbor Drive, P.O. Box 0700, West Conshohocken, PA 19428; telephone 610-832-9585; http://www.astm.org. You may inspect a copy at the Office of the Secretary, U.S. Consumer Product Safety Commission, Room 820, 4330 East West Highway, Bethesda, MD 20814, telephone 301-504-7923, or at the National Archives and Records Administration (NARA). For information on the availability of this material at NARA, call 202-741-6030, or go to: http://www.archives.gov/federal_register/code_of_federal_regulations/ibr_locations.html.

(b) Comply with the ASTM F 977-07 standard with the following additions or exclusions:

(1) Instead of Figure 1 of ASTM F 977-07, comply with the following:

Code of Federal Regulations

Code of Federal Regulations 402

[Please see PDF for image: ER21JN10.002 ]

(2) Instead of complying with section 4.6 through 4.6.8 of ASTM F 977-07, comply with the following:

(i) 4.6The following guidelines shall apply to force gauges used for testing:

(ii) 4.6.1Equipment —Force gauge with a range of 0 to 25 lbf (110 N), tolerance of ± 0.25 lbf (1.1 N). A calibration interval shall be maintained for the force guage which will ensure that the accuracy does not drift beyond the stated tolerance.

(iii) 4.6.2Equipment —Force gauge with a range 0 to 100 lbf (500 N) tolerance of ± 1 lbf (4.44 N). A calibration shall be maintained for the force gauge which will ensure that the accuracy does not drift beyond the stated tolerance.

(3) In addition to complying with section 6.3 of ASTM F 977-07, comply with the following:

(i) 6.4Parking Device (applicable to walkers equipped with parking brakes) —The walker shall have a maximum displacement of 1.97 inches (50 mm) for each test in each direction (forward, rearward, and sideward) when tested in accordance with 7.7.

(ii) [Reserved]

(4) In addition to complying with section 7.6.1.2 of ASTM F 977-07, comply with the following:

(i) 7.6.1.2The dummy's head shall remain unrestrained for all the step tests.

(ii) [Reserved]

(5) Following section 7.6.2 of ASTM F 977-07, use the following table instead of Table 1 Summary of Step(s) Tests:

(i) Table 1 Summary of Step(s) Tests

Section No.	Facing direction of walker	Weight of CAMI dummy, lb.	Simulated speed, ft/s	Apply tipover test
7.6.3	Forward	17	4	Yes.
7.6.3.6	Forward	28 (vest)	4	Yes.
7.6.4	Sideward	17	2	Yes.
7.6.4.6	Sideward	28 (vest)	2	Yes.
7.6.5	Rearward	17	4	No.
7.6.5.5	Rearward	28 (vest)	4	No.

(ii) [Reserved]

(6) Instead of complying with section 7.6.3.1 of ASTM F 977-07, comply with the following:

(i) 7.6.3.1Center the walker on the test platform facing forward so that Plane A is perpendicular to the front edge of the platform and the walker is distance d from the center of the most forward wheel(s) to the edge of the test platform,

Where

Vf = Maximum velocity of walker at edge of platform = 4 ft/sec

Vo = Initial velocity = 0

WCAMI = Measured weight of CAMI dummy

Wwalker = Weight of the walker

Wdrop weight = Drop weight = 8 lb

μk = Dynamic coefficient of friction = 0.05

NCAMI = Normal force (for CAMI dummy scenario) = weight of CAMI dummy and walker

g = acceleration of gravity = 32.2 ft/sec2

Position the swivel wheels in such a way that the walker moves forward in a straight line parallel to Plane A.

(ii) [Reserved]

(7) Instead of complying with section 7.6.3.2 of ASTM F 977-07, comply with the following:

(i) 7.6.3.2Place a CAMI infant dummy Mark II in the walker and position it as shown in Fig. 11 with the torso contacting the front of the occupant seating area and arms placed on the walker tray.

(ii) [Reserved]

(8) Instead of complying with section 7.6.3.3 of ASTM F 977-07, comply with the following:

(i) 7.6.3.3While holding the walker stationary, attach an 8 lb (3.6 kg) weight to the front of the walker base at Plane A by means of a 7-strand military rope with 550 lb tensile strength (e.g., paracord 550) and a stainless steel ball bearing pulley with an outside diameter of 1.25 in (32mm) and adjust the pulley so that the force is applied horizontally (0 ± 0.5° with respect to the table surface).

(ii) [Reserved]

(9) Instead of complying with section 7.6.3.6 of ASTM F 977-07, comply with the following:

(i) 7.6.3.6Repeat 7.6.3.1-7.6.3.5 using the CAMI dummy with the weighted vest and with distance d, computed using the following equation:

Where

Vf = Maximum velocity of walker at edge of platform = 4 ft/sec

Vo = Initial velocity = 0

WCAMI w/vest = Measured weight of CAMI dummy and weighted vest

Wwalker = Weight of the walker

Wdrop weight = Drop weight = 8 lb

μk = Dynamic coefficient of friction = 0.05

NCAMI w/vest = Normal force (for CAMI dummy fitted with 11 lb vest scenario) = weight of CAMI dummy vest weight walker weight

g = acceleration of gravity = 32.2 ft/sec2

(ii) [Reserved]

(10) In addition to complying with section 7.6.3.6 of ASTM F 977-07, comply with the following:

(i) 7.6.3.7Repeat tests in the following sequence: Section 7.6.3.4, section 7.6.3.5, and section 7.6.3.6 two additional times.

(ii) [Reserved]

(11) Instead of complying with 7.6.4.1 of ASTM F 977-07, comply with the following:

(i) 7.6.4.1Center the walker on the test platform facing sideways so that Plane B is perpendicular to the front edge of the platform and the walker is distance d from the center of the most sideward wheel(s) to the edge of the test platform,

Where

Vf = Maximum velocity of walker at edge of platform = 2 ft/sec

Vo = Initial velocity = 0

WCAMI = Measured weight of CAMI dummy

Wwalker = Weight of the walker

Wdrop weight = Drop weight = 8 lb

µk = Dynamic coefficient of friction = 0.05

NCAMI = Normal force (for CAMI dummy scenario) = weight of CAMI dummy and walker

g = acceleration of gravity = 32.2 ft/sec2

Position the swivel wheels in such a way that the walker moves sideward in a straight line parallel to Plane B.

(ii) [Reserved]

(12) Instead of complying with section 7.6.4.3 of ASTM F 977-07, comply with the following:

(i) 7.6.4.3While holding the walker stationary, attach an 8 lb (3.6 kg) weight to the side of the walker base at Plane B by means of a rope (as specified in 7.6.3.3) and a pulley (as specified in 7.6.3.3) and adjust the pulley so that the force is applied horizontally (0 ± 0.5º with respect to the table surface).

(ii) [Reserved]

(13) Instead of complying with section 7.6.4.6 of ASTM F 977-07, comply with the following:

(i) 7.6.4.6Repeat 7.6.4.1 through 7.6.4.5 using the CAMI dummy with the weighted vest (see Fig. 12) and with distance d, computed using the following equation:

Where

Vf = Maximum velocity of walker at edge of platform = 2 ft/sec

Vo = Initial velocity = 0

WCAMI w/vest = Measured weight of CAMI dummy and weighted vest

Wwalker = Weight of the walker

Wdrop weight = Drop weight = 8 lb

µk = Dynamic coefficient of friction = 0.05

NCAMI w/vest = Normal force (for CAMI dummy fitted with 11 lb vest scenario) = weight of CAMI dummy vest weight walker weight

g = acceleration of gravity = 32.2 ft/sec2″

(ii) [Reserved]

(14) In addition to complying with section 7.6.4.6 of ASTM F 977-07, comply with the following:

(i) 7.6.4.7Repeat tests in the following sequence: section 7.6.4.4, section 7.6.4.5, and section 7.6.4.6 two additional times.

(ii) [Reserved]

(15) Instead of complying with Figure 10, use the following:

Code of Federal Regulations

Code of Federal Regulations 406

[Please see PDF for image: ER21JN10.007 ]

(16) Instead of complying with section 7.6.5.1 of ASTM F 977-07, comply with the following:

(i) 7.6.5.1Center the walker on the test platform facing rearward so that Plane A is perpendicular to the front edge of the platform and the walker is distance d from the center of the most rearward wheel(s) to the edge of the test platform,

Where

Vf = Maximum velocity of walker at edge of platform = 4 ft/sec

Vo = Initial velocity = 0

WCAMI = Measured weight of CAMI dummy

Wwalker = Weight of the walker

Wdrop weight = Drop weight = 8 lb

μk = Dynamic coefficient of friction = 0.05

NCAMI = Normal force (for CAMI dummy scenario) = weight of CAMI dummy and walker

g = acceleration of gravity = 32.2 ft/sec2

Position the swivel wheels in such a way that the walker moves rearward in a straight line parallel to Plane A. If the walker has an open back design, attach the 1 in aluminum angle used in 7.3.4 to span the back frame.

(ii) [Reserved]

(17) Instead of complying with section 7.6.5.3 of ASTM F 977-07, comply with the following:

(i) 7.6.5.3While holding the walker stationary, attach an 8 lb (3.6 kg) weight to the rear of the walker base at Plane A by means of a rope (as specified in 7.6.3.3) and a pulley (as specified in 7.6.3.3) and adjust the pulley so that the force is applied horizontally (0 ± 0.5° with respect to the table surface).

(ii) [Reserved]

(18) Instead of complying with section 7.6.5.5 of ASTM F 977-07, comply with the following:

(i) 7.6.5.5Repeat 7.6.5.1 through 7.6.5.4 using the CAMI dummy with the weighted vest (see Fig. 12) and with distance d, computed using the following equation:

Where

Vf = Maximum velocity of walker at edge of platform = 4 ft/sec

Vo = Initial velocity = 0

WCAMI w/vest = Measured weight of CAMI dummy and weighted vest

Wwalker = Weight of the walker

Wdrop weight = Drop weight = 8 lb

μk = Dynamic coefficient of friction = 0.05

NCAMI w/vest = Normal force (for CAMI dummy fitted with weighted vest scenario) = Measured weight of CAMI dummy measured weight of vest walker weight

g = acceleration of gravity = 32.2 ft/sec2″

(19) In addition to complying with section 7.6.5.5 of ASTM F 977-07, comply with the following:

(i) 7.6.5.6Repeat tests in the following sequence: section 7.6.5.3, and section 7.6.5.5 two additional times.

(ii) [Reserved]

(20) In addition to complying with section 7.6 of ASTM F 977-07, comply with the following:

(i) 7.7Parking Device Test (see 6.4):

(A) 7.7.1Perform the parking device test using a Test Mass that is A rigid cylinder 6.30 in ± 0.04 in (160mm ± 1 mm) in diameter, 11.02 in ± 0.04 in (280 mm ± 1 mm) in height with a mass of 16.9 lb (7.65 kg), with its center of gravity in the center of the cylinder.

(B) 7.7.2Adjust the walker seat to the highest position (if applicable). Place the Test Mass vertically in the walker seat. Set any manual speed control to the fastest position (if applicable). Establish a vertical plane A that passes through the center of the seating area and is parallel to the direction the child faces. Establish a vertical plane B that is perpendicular to plane A and passes through the center of the seating area.

(D) 7.7.4Forward facing test of parking devices.

(E) 7.7.4.1Position the walker including the Test Mass facing forward so that plane A is perpendicular to the front edge of the platform (see fig. 10) and passes through the center of the pulley. Engage all parking devices in accordance with the manufacturer's instructions.

(F) 7.7.4.2Within one minute of placing the walker with the Test Mass on the platform, attach an 8 lb weight gradually within 5 seconds to the walker frame base at plane A by means of a rope and a pulley per the test apparatus specifications in the step test procedure, adjusted so that the force is applied horizontally (rope angle shall be 0 ± 0.5°). Remove the 8 lb weight after 1 minute. Measure the displacement.

(G) 7.7.5Sideward facing test of parking devices.

(H) 7.7.5.1Position the walker including the Test Mass facing sideward so that plane B is perpendicular to the front edge of the platform and passes through the center of the pulley. Engage all parking devices in accordance with the manufacturer's instructions.

(I) 7.7.5.2Within one minute of placing the walker with the Test Mass on the platform, attach an 8 lb weight gradually within 5 seconds to the walker frame base at plane B by means of a rope and a pulley per the test apparatus specifications in the step test procedure, adjusted so that the force is applied horizontally (rope angle shall be 0 ± 0.5°). Remove the 8 lb weight after 1 minute. Measure the displacement.

(J) 7.7.5.3If the walker is equipped with fixed direction rear wheels and the walker is displaced in a curved path, establish the location of the rope attachment as the reference point and measure the linear displacement of that reference point after performing the procedure as described in 7.7.5.1 and 7.7.5.2.

(K) 7.7.6Rearward facing test of parking devices.

(L) 7.7.6.1Position the walker including the Test Mass facing rearward so that plane A is perpendicular to the front edge of the platform and passes through the center of the pulley. Engage all parking devices in accordance with the manufacturers' instructions.

(M) 7.7.6.2Within one minute of placing the walker with the Test Mass on the platform, attach an 8 lb weight gradually within 5 seconds to the walker frame base at plane A by means of a rope and a pulley per the test apparatus specifications in the step test procedure, adjusted so that the force is applied horizontally (rope angle shall be 0 ± 0.5°). Remove the 8 lb weight after 1 minute. Measure the displacement.

(ii) [Reserved]

(21) In addition to complying with section 8.2.3.2 of ASTM F 977-07, comply with the following:

(i) 8.2.3.3 If the walker is equipped with a parking brake, a warning statement shall address the following:

WARNING: Parking brake use does not totally prevent walker movement. Always keep child in view when in the walker, even when using the parking brakes.

(ii) [Reserved]

(22) Instead of complying with section 8.2.4.2 of ASTM F 977-07, comply with the following:

(i) 8.2.4.2The stairs warning shall be stated exactly as follows:

Code of Federal Regulations

Code of Federal Regulations 409

[Please see PDF for image: ER21JN10.010 ]

(ii) [Reserved]

Code of Federal Regulations

[75 FR 35273, June 21, 2010, as amended at 75 FR 51178, Aug. 19, 2010]