ASTM F833-21
(Specification)Standard Consumer Safety Performance Specification for Carriages and Strollers
Standard Consumer Safety Performance Specification for Carriages and Strollers
SCOPE
1.1 This consumer safety specification establishes safety performance requirements, test methods, and labeling requirements to minimize the hazards to children presented by carriages and strollers as identified in the introduction. Children’s products such as tricycles, bicycles, or other similar wheeled products that can be self-propelled by a child are not considered carriages or strollers subject to the requirements of this standard, even if the item has a temporary or permanent handle.
1.2 No carriage or stroller produced after the approval date of this consumer safety performance specification shall, either by label or other means, indicate compliance with this specification unless it conforms to all requirements herein.
1.3 The values stated in inch-pound units are to be regarded as standard. The values given in parentheses are mathematical conversions to SI units that are provided for information only and are not considered standard.
1.4 The following precautionary caveat pertains only to the test method portion, Section 7, of this consumer safety specification: This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety, health, and environmental practices and determine the applicability of regulatory limitations prior to use.
1.5 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.
General Information
Relations
Standards Content (Sample)
This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the
Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.
Designation:F833 −21
Standard Consumer Safety Performance Specification for
Carriages and Strollers
ThisstandardisissuedunderthefixeddesignationF833;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginal
adoption or, in the case of revision, the year of last revision.Anumber in parentheses indicates the year of last reapproval.Asuperscript
epsilon (´) indicates an editorial change since the last revision or reapproval.
INTRODUCTION
This consumer safety performance specification addresses carriage and stroller incidents that were
identified by the U.S. Consumer Product Safety Commission (CPSC).
The CPSC identified injuries to children associated with the following: stability, brakes, restraint
systems, latches and folding mechanisms, structural integrity, cords, wheel detachment, and deaths
due to entrapment in openings of convertible carriage/strollers. In response to the incident-data
compiled by the CPSC, this consumer safety performance specification attempts to minimize the
previously listed problems. This specification does not cover carriages and strollers that are blatantly
misused, although warnings and safety instructions are required to be prominently displayed on or
with each carriage or stroller.
NOTE 1—This consumer safety performance specification is not intended to address incidents and
injuries resulting from the interaction of other persons with children in carriages or strollers or
incidents resulting from unforeseeable abuse or misuse.
This consumer safety performance specification is written within the current state of the art of
carriage and stroller technology. It is intended that this specification will be updated whenever
substantive information becomes available which necessitates additional requirements or justifies the
revision of existing requirements.
1. Scope 1.4 The following precautionary caveat pertains only to the
test method portion, Section 7, of this consumer safety speci-
1.1 This consumer safety specification establishes safety
fication: This standard does not purport to address all of the
performance requirements, test methods, and labeling require-
safety concerns, if any, associated with its use. It is the
ments to minimize the hazards to children presented by
responsibility of the user of this standard to establish appro-
carriages and strollers as identified in the introduction. Chil-
priate safety, health, and environmental practices and deter-
dren’s products such as tricycles, bicycles, or other similar
mine the applicability of regulatory limitations prior to use.
wheeled products that can be self-propelled by a child are not
1.5 This international standard was developed in accor-
considered carriages or strollers subject to the requirements of
dance with internationally recognized principles on standard-
this standard, even if the item has a temporary or permanent
ization established in the Decision on Principles for the
handle.
Development of International Standards, Guides and Recom-
1.2 No carriage or stroller produced after the approval date
mendations issued by the World Trade Organization Technical
of this consumer safety performance specification shall, either
Barriers to Trade (TBT) Committee.
by label or other means, indicate compliance with this speci-
fication unless it conforms to all requirements herein.
2. Referenced Documents
1.3 The values stated in inch-pound units are to be regarded
2.1 ASTM Standards:
as standard. The values given in parentheses are mathematical
D3359 Test Methods for Rating Adhesion by Tape Test
conversions to SI units that are provided for information only
F406 Consumer Safety Specification for Non-Full-Size
and are not considered standard.
Baby Cribs/Play Yards
F963 Consumer Safety Specification for Toy Safety
This specification is under the jurisdiction of ASTM Committee F15 on
Consumer Products and is the direct responsibility of Subcommittee F15.17 on
Carriages, Strollers, Walkers and Stationary Activity Centers. For referenced ASTM standards, visit the ASTM website, www.astm.org, or
Current edition approved June 15, 2021. Published August 2021. Originally contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
approved in 1983. Last previous edition approved in 2019 as F833 – 19. DOI: Standards volume information, refer to the standard’s Document Summary page on
10.1520/F0833-21. the ASTM website.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
F833−21
F2680 Test Methods and Specifications for Bicycle Manu- cords, plastic textile tapes, ribbon, and those fibrous materials
ally Operated Front Wheel Retention Systems commonly called string.
2.2 Federal Standards: 3.1.8 double-action release mechanism, n—a release
16 CFR 1303 Ban of Lead-Containing Paint and Certain
mechanism that requires either two consecutive actions, the
Consumer Products Bearing Lead-Containing Paint first of which must be maintained while the second is carried
16 CFR 1500 Hazardous Substances Act Regulations in-
out, or two separate and independent single-action locking
cluding sections:
mechanisms that must be activated simultaneously to fully
1500.48 Mechanical Requirements for Determining a Sharp
release.
Point in Toys or Other Articles Intended for Use by
3.1.9 harness system, n—shall include a waist and crotch
Children Under Eight Years of Age
restraint and a means of restraining the upper torso.
1500.49 Technical Requirements for Determining a Sharp
3.1.10 infant, n—young child who is not capable of sitting
MetalorGlassEdgeinToysorOtherArticlesIntendedfor
unassisted.
Use by Children Under Eight Years of Age
1500.50-52 Test Methods for Simulating Use and Abuse of
3.1.11 jogging stroller, n—stroller intended to be used for
Toys and Other Articles Intended for Use by Children
children at a jogging rate (run at a steady slow trot).
16 CFR 1501 Method for Identifying Toys and Other Ar-
3.1.12 manufacturer’s recommended use position, n—any
ticles Intended for Use by Children Under Three Years of
position that is presented as a normal, allowable, or acceptable
Age Which Present Choking, Aspiration, or Ingestion
configuration for use of the product by the manufacturer in any
Hazards Because of Small Parts
descriptive or instructional literature. This specifically ex-
16 CFR 1508.07 (c)
cludes positions that the manufacturer shows in a like manner
2.3 Other Standards:
in its literature to be unacceptable, unsafe, or not recom-
AS/NZS 2088 Prams and strollers—safety requirements
mended.
EN 1888 Child care articles - Wheeled child conveyances -
3.1.13 non-paper label, n—any label material (such as
Safety requirements and test methods
plasticormetal)thateitherwillnottearwithouttheaidoftools
or tears leaving a sharply defined edge.
3. Terminology
3.1.14 occupant(s), n—that individual or those individuals
3.1 Definitions of Terms Specific to This Standard:
who are in a product that is set up in one of the manufacturer’s
3.1.1 2D fold stroller, n—a stroller that folds the handlebars
recommended use positions.
and leg tubes only in the front-to-back (or back-to-front)
3.1.15 occupant retention space, n—space enclosed by the
direction.
surfaces, for example, side walls or the floor, or both, of a
3.1.2 3D fold stroller, n—a stroller that, when folded,
carriage or convertible carriage/stroller that contains the occu-
collapses all handlebars and leg tubes both in the front-to-back
pant within a carriage or a stroller in the reclined carriage
(or back-to-front) and side-to-side directions.
position.
3.1.3 carriage, n—wheeled vehicle generally used for the
3.1.16 paper label, n—any label material that tears without
transportofaninfantwhoisgenerallyinalyingdownposition.
the aid of tools and leaves a fibrous edge.
The motive power is supplied by a person or persons pushing
or pulling on a handle attached to the vehicle. A carriage may
3.1.17 quick-release mechanism, n—lever-actuated cam
be capable of being folded for storage.
mechanism that connects and retains a wheel in a fork
assembly.
3.1.4 conspicuous, n—label that is visible, when the unit is
in a manufacturer’s recommended use position, to a person
3.1.18 reclined carriage position, n—adjustment position of
standing near the unit at any one position around the unit but
a convertible carriage/stroller that allows for an interior angle
not necessarily visible from all positions.
of greater than 150° between the seat surface and the backrest.
3.1.5 convertible car seat/stroller, n—car seat that has
3.1.19 removable-wheel fork assembly, n—fork assembly
wheels and handle that can be converted to become a stroller
from which the wheel can be removed and reattached as a
without the addition of other components.
manufacturer recommended normal product use.
3.1.6 convertible carriage/stroller, n—wheeled vehicle that
3.1.19.1 Discussion—A removable-wheel fork assembly
is intended to be converted by the owner to be used as either a
can employ a quick release mechanism or other manually
carriage or a stroller.
operated mechanism that does not require the use of tools for
installation or removal.
3.1.7 cord, n—a length of slender, flexible material includ-
ing monofilaments, woven and twisted cord, rope, elastic
3.1.20 saddle hinge link, n—a folding joint on the side of a
3D fold stroller that connects the front leg tube and handle
tube.
Code of Federal Regulations, available from U.S. Government Printing Office,
3.1.20.1 Discussion—It includes a component (saddle
Washington, DC 20402.
hinge) that contains a pivot location and a recessed groove (see
Available from SAI Global, http://www.saiglobal.com.
Fig. 1). When the stroller is unfolded, one of the tubes rotates
Available from European Committee for Standardization (CEN), Avenue
Marnix 17, B-1000, Brussels, Belgium, http://www.cen.eu. around the saddle hinge pivot and rests in the recessed groove.
F833−21
FIG. 1Saddle Hinge Link
3.1.21 static load, n—vertically downward force applied by 5. General Requirements
a calibrated force gage or by dead weights.
5.1 There shall be no hazardous points or edges as defined
3.1.22 strap, n—piece of flexible material of which the
by 16 CFR 1500.48 and 16 CFR 1500.49 before and after
width is significantly greater than the thickness.
testing to this consumer safety specification.
3.1.23 stroller, n—wheeled vehicle for the transport of
5.2 Thereshallbenosmallpartsasdefinedby16CFR1501
infants or children generally in a sitting-up or semi-reclined
before testing or liberated as a result of testing to this
position. The motive power is supplied by a person moving at
specification.
a walking rate while pushing on a handle attached to the
5.3 The paint and surface-coating on the product shall
stroller. A stroller generally is capable of being folded for
comply to 16 CFR 1303.
storage. Strollers normally are used for children from infancy
5.4 Priortotesting,anyexposedwoodpartsshallbesmooth
to 36 months of age.
and free of splinters.
3.1.24 tray/grab bar locking position, n—any position in
which the tray or grab bar can lock including positions 5.5 Latching Mechanisms:
5.5.1 Any unit that folds shall have a latching device or
intended by the manufacturer for non-occupant use.
other provision in the design that will prevent the unit from
3.1.25 tray/grab bar protective covering, n—component
unintentional folding when properly placed in the manufactur-
designed and intended as a means to prevent exposure of any
er’s recommended use position. Products with latching devices
underlying accessible foammaterial.Examplesinclude,butare
for prevention of unintentional folding shall be tested in
not limited to woven, knit, coated, laminated, extruded, or
accordance with 7.2. During and upon completion of this test,
calendered textile-based materials and leathers.
the unit shall meet the requirements in 5.5.1.1 or 5.5.1.2.
3.1.26 tray/grab bar stop position, n—anypositioninwhich
5.5.1.1 The locking device on the unit shall remain latched.
the tray or grab bar is forward of the occupant, is not in a
5.5.1.2 The stroller frame components yield and perma-
locking position, and remains stationary whena5lb force is
nently deform in a manner such that the full load specified
applied to it for 10 s at any location and in any direction likely
cannot be applied in the direction of folding and the locking
to cause it to change position.
device remains engaged.
3.1.26.1 Discussion—The 5 lb force is designed to over-
5.5.2 Strollers that employ hinged links with a geometric
come any small frictional force which would otherwise be
over center action (see Fig. 2) to maintain the product in the
overcome during normal use.
normal use position shall require two distinct and separate
actions on the part of the user to initiate folding of the product.
4. Calibration and Standardization
4.1 All testing shall be conducted on a concrete floor that
may be covered with ⁄8-in. (3-mm) thick vinyl floor covering,
unless test instructs differently.
4.2 The unit shall be completely assembled, unless other-
wisenoted,inaccordancewiththemanufacturer’sinstructions.
4.3 No testing shall be conducted within 48 h of manufac-
turing.
4.4 The product to be tested shall be in a room with an
ambient temperature of 73 °F 6 9 °F (23 °C 6 5 °C) for at
least1hpriortotesting.Testingshallthenbeconductedwithin
this temperature range.
4.5 All testing required by this specification shall be con-
ducted on the same unit with the exception of 7.2, where a new
unit can be used if the unit frame permanently deforms. FIG. 2Stroller With Hinged Link
F833−21
Such strollers shall require only a single action on the part of 5.7.2 Saddle hinge links on 3D fold strollers shall be
the user to secure the stroller in the normal use position. designed and constructed so as to prevent injury from
scissoring, shearing, or pinching. Scissoring, shearing, or
5.6 Openings—Holes or slots that extend entirely through a
pinching that may cause injury exists in a saddle hinge link
wall section of any rigid material less than 0.375 in. (9.53 mm)
when the edges of the rigid parts admit a 0.210-in. (5.33-mm)
thick and admit a 0.210-in. (5.33-mm) diameter rod shall also
diameter probe but do not admit a 0.375-in. (9.53-mm)
admit a 0.375-in. (9.53-mm) diameter rod. Holes or slots that
diameter probe when tested in accordance with 7.17.1.
are between 0.210 in. (5.33 mm) and 0.375 in. (9.53 mm) and
have a wall thickness less than 0.375 in. (9.53 mm) but ar
...
This document is not an ASTM standard and is intended only to provide the user of an ASTM standard an indication of what changes have been made to the previous version. Because
it may not be technically possible to adequately depict all changes accurately, ASTM recommends that users consult prior editions as appropriate. In all cases only the current version
of the standard as published by ASTM is to be considered the official document.
Designation: F833 − 19 F833 − 21
Standard Consumer Safety Performance Specification for
Carriages and Strollers
This standard is issued under the fixed designation F833; the number immediately following the designation indicates the year of original
adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. A superscript
epsilon (´) indicates an editorial change since the last revision or reapproval.
INTRODUCTION
This consumer safety performance specification addresses carriage and stroller incidents that were
identified by the U.S. Consumer Product Safety Commission (CPSC).
The CPSC identified injuries to children associated with the following: stability, brakes, restraint
systems, latches and folding mechanisms, structural integrity, cords, wheel detachment, and deaths
due to entrapment in openings of convertible carriage/strollers. In response to the incident-data
compiled by the CPSC, this consumer safety performance specification attempts to minimize the
previously listed problems. This specification does not cover carriages and strollers that are blatantly
misused, although warnings and safety instructions are required to be prominently displayed on or
with each carriage or stroller.
NOTE 1—This consumer safety performance specification is not intended to address incidents and
injuries resulting from the interaction of other persons with children in carriages or strollers or
incidents resulting from unforeseeable abuse or misuse.
This consumer safety performance specification is written within the current state of the art of
carriage and stroller technology. It is intended that this specification will be updated whenever
substantive information becomes available which necessitates additional requirements or justifies the
revision of existing requirements.
1. Scope
1.1 This consumer safety specification establishes safety performance requirements, test methods, and labeling requirements to
minimize the hazards to children presented by carriages and strollers as identified in the introduction. Children’s products such as
tricycles, bicycles, or other similar wheeled products that can be self-propelled by a child are not considered carriages or strollers
subject to the requirements of this standard, even if the item has a temporary or permanent handle.
1.2 No carriage or stroller produced after the approval date of this consumer safety performance specification shall, either by label
or other means, indicate compliance with this specification unless it conforms to all requirements herein.
1.3 The values stated in inch-pound units are to be regarded as standard. The values given in parentheses are mathematical
conversions to SI units that are provided for information only and are not considered standard.
1.4 The following precautionary caveat pertains only to the test method portion, Section 7, of this consumer safety specification:
This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the
user of this standard to establish appropriate safety, health, and environmental practices and determine the applicability of
regulatory limitations prior to use.
This specification is under the jurisdiction of ASTM Committee F15 on Consumer Products and is the direct responsibility of Subcommittee F15.17 on Carriages,
Strollers, Walkers and Stationary Activity Centers.
Current edition approved March 15, 2019June 15, 2021. Published April 2019August 2021. Originally approved in 1983. Last previous edition approved in 20152019 as
F833 – 15.F833 – 19. DOI: 10.1520/F0833-19.10.1520/F0833-21.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
F833 − 21
1.5 This international standard was developed in accordance with internationally recognized principles on standardization
established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued
by the World Trade Organization Technical Barriers to Trade (TBT) Committee.
2. Referenced Documents
2.1 ASTM Standards:
D3359 Test Methods for Rating Adhesion by Tape Test
F406 Consumer Safety Specification for Non-Full-Size Baby Cribs/Play Yards
F963 Consumer Safety Specification for Toy Safety
F2680 Test Methods and Specifications for Bicycle Manually Operated Front Wheel Retention Systems
2.2 Federal Standards:
16 CFR 1303 Ban of Lead-Containing Paint and Certain Consumer Products Bearing Lead-Containing Paint
16 CFR 1500 Hazardous Substances Act Regulations including sections:
1500.48 Mechanical Requirements for Determining a Sharp Point in Toys or Other Articles Intended for Use by Children Under
Eight Years of Age
1500.49 Technical Requirements for Determining a Sharp Metal or Glass Edge in Toys or Other Articles Intended for Use by
Children Under Eight Years of Age
1500.50-52 Test Methods for Simulating Use and Abuse of Toys and Other Articles Intended for Use by Children
16 CFR 1501 Method for Identifying Toys and Other Articles Intended for Use by Children Under Three Years of Age Which
Present Choking, Aspiration, or Ingestion Hazards Because of Small Parts
16 CFR 1508.07 (c)
2.3 Other Standards:
AS/NZS 2088 Prams and strollers—safety requirements
EN 1888 Child care articles - Wheeled child conveyances - Safety requirements and test methods
3. Terminology
3.1 Definitions of Terms Specific to This Standard:
3.1.1 2D fold stroller, n—a stroller that folds the handlebars and leg tubes only in the front-to-back (or back-to-front) direction.
3.1.2 3D fold stroller, n—a stroller that, when folded, collapses all handlebars and leg tubes both in the front-to-back (or
back-to-front) and side-to-side directions.
3.1.3 carriage, n—wheeled vehicle generally used for the transport of an infant who is generally in a lying down position. The
motive power is supplied by a person or persons pushing or pulling on a handle attached to the vehicle. A carriage may be capable
of being folded for storage.
3.1.4 conspicuous, n—label that is visible, when the unit is in a manufacturer’s recommended use position, to a person standing
near the unit at any one position around the unit but not necessarily visible from all positions.
3.1.5 convertible car seat/stroller, n—car seat that has wheels and handle that can be converted to become a stroller without the
addition of other components.
3.1.6 convertible carriage/stroller, n—wheeled vehicle that is intended to be converted by the owner to be used as either a carriage
or a stroller.
3.1.7 cord, n—a length of slender, flexible material including monofilaments, woven and twisted cord, rope, elastic cords, plastic
textile tapes, ribbon, and those fibrous materials commonly called string.
3.1.8 double action double-action release mechanism, n—a release mechanism that requires either two consecutive actions, the
For referenced ASTM standards, visit the ASTM website, www.astm.org, or contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM Standards
volume information, refer to the standard’s Document Summary page on the ASTM website.
Code of Federal Regulations, available from U.S. Government Printing Office, Washington, DC 20402.
Available from SAI Global, http://www.saiglobal.com.
Available from European Committee for Standardization (CEN), Avenue Marnix 17, B-1000, Brussels, Belgium, http://www.cen.eu.
F833 − 21
first of which must be maintained while the second is carried out, or two separate and independent single action single-action
locking mechanisms that must be activated simultaneously to fully release.
3.1.9 harness system, n—shall include a waist and crotch restraint and a means of restraining the upper torso.
3.1.10 infant, n—young child who is not capable of sitting unassisted.
3.1.11 jogging stroller, n—stroller intended to be used for children at a jogging rate (run at a steady slow trot).
3.1.12 manufacturer’s recommended use position, n—any position that is presented as a normal, allowable, or acceptable
configuration for use of the product by the manufacturer in any descriptive or instructional literature. This specifically excludes
positions that the manufacturer shows in a like manner in its literature to be unacceptable, unsafe, or not recommended.
3.1.13 non-paper label, n—any label material (such as plastic or metal) that either will not tear without the aid of tools or tears
leaving a sharply defined edge.
3.1.14 occupant(s), n—that individual or those individuals who are in a product that is set up in one of the manufacturer’s
recommended use positions.
3.1.15 occupant retention space, n—space enclosed by the surfaces, for example, side walls or the floor, or both, of a carriage or
convertible carriage/stroller that contains the occupant within a carriage or a stroller in the reclined carriage position.
3.1.16 paper label, n—any label material that tears without the aid of tools and leaves a fibrous edge.
3.1.17 quick release quick-release mechanism, n—lever-actuated cam mechanism that connects and retains a wheel in a fork
assembly.
3.1.18 reclined carriage position, n—adjustment position of a convertible carriage/stroller that allows for an interior angle of
greater than 150° between the seat surface and the backrest.
3.1.19 removable-wheel fork assembly, n—fork assembly from which the wheel can be removed and reattached as a manufacturer
recommended normal product use.
3.1.19.1 Discussion—
A removable-wheel fork assembly can employ a quick release mechanism or other manually operated mechanism that does not
require the use of tools for installation or removal.
3.1.20 saddle hinge link, n—a folding joint on the side of a 3D fold stroller that connects the front leg tube and handle tube.
3.1.20.1 Discussion—
It includes a component (saddle hinge) that contains a pivot location and a recessed groove (see Fig. 1). When the stroller is
unfolded, one of the tubes rotates around the saddle hinge pivot and rests in the recessed groove.
3.1.21 static load, n—vertically downward force applied by a calibrated force gage or by dead weights.
3.1.22 strap, n—piece of flexible material of which the width is significantly greater than the thickness.
FIG. 1 Saddle Hinge Link
F833 − 21
3.1.23 stroller, n—wheeled vehicle for the transport of infants or children generally in a sitting-up or semi-reclined position. The
motive power is supplied by a person moving at a walking rate while pushing on a handle attached to the stroller. A stroller
generally is capable of being folded for storage. Strollers normally are used for children from infancy to 36 months of age.
3.1.24 tray/grab bar locking position, n—any position in which the tray or grab bar can lock including positions intended by the
manufacturer for non-occupant use.
3.1.25 tray/grab bar protective covering, n—component designed and intended as a means to prevent exposure of any underlying
accessible foam material. Examples include, but are not limited to woven, knit, coated, laminated, extruded, or calendered
textile-based materials and leathers.
3.1.26 tray/grab bar stop position, n—any position in which the tray or grab bar is forward of the occupant, is not in a locking
position, and remains stationary when a 5 lb force is applied to it for 10 s at any location and in any direction likely to cause it
to change position.
3.1.26.1 Discussion—
The 5 lb force is designed to overcome any small frictional force which would otherwise be overcome during normal use.
4. Calibration and Standardization
4.1 All testing shall be conducted on a concrete floor that shallmay be covered with ⁄8-in. (3-mm) thick vinyl floor covering,
unless test instructs differently.
4.2 The unit shall be completely assembled, unless otherwise noted, in accordance with the manufacturer’s instructions.
4.3 No testing shall be conducted within 48 h of manufacturing.
4.4 The product to be tested shall be in a room with an ambient temperature of 73 6 9°F (23 6 5°C)73 °F 6 9 °F (23 °C 6 5 °C)
for at least 1 h prior to testing. Testing shall then be conducted within this temperature range.
4.5 All testing required by this specification shall be conducted on the same unit with the exception of 7.2, where a new unit can
be used if the unit frame permanently deforms.
5. General Requirements
5.1 There shall be no hazardous points or edges as defined by 16 CFR 1500.48 and 16 CFR 1500.49 before and after testing to
this consumer safety specification.
5.2 There shall be no small parts as defined by 16 CFR 1501 before testing or liberated as a result of testing to this specification.
5.3 The paint and surface-coating on the product shall comply to 16 CFR 1303.
5.4 Prior to testing, any exposed wood parts shall be smooth and free of splinters.
5.5 Latching Mechanisms:
5.5.1 Any unit that folds shall have a latching device or other provision in the design that will prevent the unit from unintentional
folding when properly placed in the manufacturer’s recommended use position. Products with latching devices for prevention of
unintentional folding shall be tested in accordance with 7.2. During and upon completion of this test, the unit shall meet the
requirements in 5.5.1.1 or 5.5.1.2.
5.5.1.1 The locking device on the unit shall remain latched.
5.5.1.2 The stroller frame components yield and permanently deform in a manner such that the full load specified cannot be
applied in the direction of folding and the locking device remains engaged.
F833 − 21
5.5.2 Strollers that employ hinged links with a geometric over center action (see Fig. 2) to maintain the product in the normal use
position shall require two distinct and separate actions on the part of the user to initiate folding of the product. Such strollers shall
require only a single action on the part of the user to secure the stroller in the normal use position.
5.6 Openings—Holes or slots that extend entirely through a wall section of any rigid material less than 0.375 in. (9.53 mm) thick
and admit a 0.210-in. (5.33-mm) diameter rod shall also admit a 0.375-in. (9.53-mm) diameter rod. Holes or slots that are between
0.210 in. (5.33 mm) and 0.375 in. (9.53 mm) and have a wall thickness less than 0.375 in. (9.53 mm) but are limited in depth to
0.375 in. (9.5
...
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