ASTM F381-99
(Specification)Standards Safety Specification for Components, Assembly, Use, and Labeling of Consumer Trampolines
Standards Safety Specification for Components, Assembly, Use, and Labeling of Consumer Trampolines
SCOPE
1.1 This safety specification covers the components, the assembly, and the use of consumer trampolines.
1.2 This specification is delimited in its application to trampolines of (1) a minimum bed size of 3300 in.2 (21 300 cm2), (2) a minimum height of 20 in. (51 cm), (3) intended for the purpose of continuous, vertical jumping activities and (4) intended for consumer use.
1.3 This specification is intended to reduce the demonstrated hazards associated with the use of trampolines by consumers. Trampolines primarily used by consumers are in home environments. This specification is not intended to apply to institutional trampolines. Trampolines that adhere to this specification are not recommended for use by children under six years of age.
1.4 This standard does not purport to address all of the hazards associated with trampolines. The standard's existence alone will not necessarily prevent injuries. Like other physical activities, trampoline use involves the risk of injury, particularly if the equipment is used improperly.
1.5 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 and health practices and determine the applicability of regulatory limitations prior to use.
1.6 The primary units given in this specification are in the inch-pound system.
1.7 This specification includes the following sections and selected subsections.TitleSection NumberScope1Referenced Documents2Terminology3Included Components4Materials and Manufacture5Environmental Conditioning5.2.1UV Exposure5.2.1.1Performance Requirements6Drop Test6.2Drop test weight and impactor shape.6.2.1Drop test procedure.6.2.2Padding Attachment System Strength6.3Padding Attachment System Strength Test Procedure6.3.1Information Packet:7Packet Marketing and Contents7.1Assembly and Installation Instructions7.2Care and Maintenance Instructions7.3Warning Information7.4Use Instructions7.5Product Marking:8Identification8.1On-Trampoline Warnings8.2Instruction Sign8.3Packaging and Package Marking9Access Devices:10Trampoline Ladders10.1Ladder Warning10.2Keywords11Appendix
General Information
Relations
Standards Content (Sample)
NOTICE: This standard has either been superseded and replaced by a new version or discontinued.
Contact ASTM International (www.astm.org) for the latest information.
Designation: F 381 – 99 An American National Standard
Standard Safety Specification for
Components, Assembly, Use, and Labeling of Consumer
Trampolines
This standard is issued under the fixed designation F 381; 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 (e) indicates an editorial change since the last revision or reapproval.
1. Scope
Access Devices: 10
Trampoline Ladders 10.1
1.1 This safety specification covers the components, the
Ladder Warning 10.2
assembly, and the use of consumer trampolines.
Keywords 11
Appendix
1.2 This specification is delimited in its application to
trampolines of (1) a minimum bed size of 3300 in. (21 300
2. Referenced Documents
cm ), (2) a minimum height of 20 in. (51 cm), (3) intended for
2.1 ASTM Standards:
the purpose of continuous, vertical jumping activities and (4)
F 355 Test Method for Shock–Absorbing Properties of
intended for consumer use.
Playing Surface Systems and Materials
1.3 This specification is intended to reduce the demon-
2.2 Other Standard:
strated hazards associated with the use of trampolines by
ANSI Standard Z535.4 Product Safety Signs and Labels
consumers. Trampolines primarily used by consumers are in
home environments. This specification is not intended to apply
3. Terminology
to institutional trampolines. Trampolines that adhere to this
3.1 Definitions of Terms Specific to This Standard:
specification are not recommended for use by children under
3.1.1 access device, n—a device used for access to or egress
six years of age.
from a trampoline bed including, but not limited to, trampoline
1.4 This standard does not purport to address all of the
ladders.
hazards associated with trampolines. The standard’s existence
3.1.2 bed, n—flexible surface which the user contacts in the
alone will not necessarily prevent injuries. Like other physical
course of bouncing on a trampoline.
activities, trampoline use involves the risk of injury, particu-
3.1.3 bouncing, n—the action considered as normal use of a
larly if the equipment is used improperly.
trampoline consisting of continuous, vertical jumping wherein
1.5 The primary units given in this specification are in the
each landing is in near proximity to the previous landing.
inch-pound system.
3.1.4 consumer trampoline, n—a trampoline intended for
1.6 This specification includes the following sections and
use in a home environment.
selected subsections.
3.1.5 folding-type trampoline, n—a trampoline whose frame
Title Section Number
can be folded when not in use. See portable.
Scope 1
Referenced Documents 2 3.1.6 frame, n—the framework constructed of rigid support-
Terminology 3
ive materials from which the bed is suspended.
Included Components 4
3.1.7 frame padding, n—shock-attenuating protective de-
Materials and Manufacture 5
Performance Requirements 6 vice(s) that attaches to the frame to cover the frame and
Information Packet: 7
suspension system.
Packet Marketing and Contents 7.1
3.1.8 institutional trampoline, n—a trampoline intended for
Assembly and Installation Instructions 7.2
Care and Maintenance Instructions 7.3 use in a commercial or institutional facility.
Warning Information 7.4
3.1.9 ladder, n—see trampoline ladder.
Use Instructions 7.5
3.1.10 legs, n—the framework constructed of rigid materi-
Product Marking: 8
Identification 8.1
als which support the frame above the ground or floor.
On-Trampoline Warnings 8.2
3.1.11 mat, n—a common, though nonpreferred term refer-
Instruction Sign 8.3
ring to bed.
Packaging and Package Marking 9
3.1.12 portable, adj—able to be easily moved without
disassembly, though usually requiring the assistance of devices
This safety specification is under the jurisdiction of ASTM Committee F-8 on
Sports Equipment, Surfaces, and Facilities and is the direct responsibility of
Subcommittee F08.17 on Trampolines and Related Equipment. Annual Book of ASTM Standards, Vol 1507.
Current edition approved Feb. 10, 1999. Published May 1999. Originally Available from American National Standards Institute, 11 W. 42nd St., 13th
published as F 381 - 74. Last previous edition F 381 - 95. Floor, New York, NY 10036.
Copyright © ASTM, 100 Barr Harbor Drive, West Conshohocken, PA 19428-2959, United States.
F 381
such as roller stands. Folding-type trampolines are often a distance of 2 ft (61 cm).
intended to be portable.
7. Information Packet
3.1.13 roller stand, n—a device that is used to assist in
7.1 Packet Marking and Contents:
rolling/moving a folding-type trampoline frame.
3.1.14 suspension system, n—the bed-supporting system 7.1.1 Each trampoline shall be accompanied by a separate
packet of materials, with the following notice:
made up of elastic devices that connect the bed to the frame,
for example, steel extension springs.
Assembly, Installation, Care, Maintenance, and Use Instruc-
3.1.15 trampoline, n—a rebound device activated by verti-
cal jumping, upon which gymnastics skills and exercises are tions
performed.
WARNING
3.1.16 trampoline ladder, n—a ladder-like device specifi-
Read these materials prior to assembling and using this
cally designed for use with a trampoline and designed to be
trampoline
easily removable.
4. Included Components
7.1.1.1 This notice shall, without font or layout being
implied, be well highlighted, and in enlarged boldface type in
4.1 When a trampoline is offered for sale, it shall include the
contrast to other text.
following: (1) a frame, (2) a bed, (3) a suspension system, (4)
7.1.2 The packet shall contain: (1) assembly instructions,
frame padding, (5) an information packet, and (6) suitable
(2) care and maintenance instructions, (3) warning information,
markings.
and (4) use instructions.
4.2 When a trampoline is offered for sale, a trampoline
ladder shall not be included as a component part or within the 7.2 Assembly and Installation Instructions:
7.2.1 The manufacturer’s assembly instructions for the
same packaging.
4.3 When a portable trampoline is offered for sale, it shall trampoline shall be clearly written and presented such that the
trampoline can be properly and safely assembled.
include all of the components in 4.1 plus appropriate roller
stands. 7.2.2 The manufacturer’s assembly instructions shall em-
phasize the importance of properly attaching the frame padding
4.3.1 For folding-type trampolines, the information in 7.5.1
and 8.3.3 shall also include the following: securely to the frame and in correct position prior to using the
trampoline. The manufacturer shall provide a diagram illustrat-
4.3.1.1 Use two or more strong people to open and close
folding-type trampolines. ing the correct placement of the frame padding relative to the
frame.
5. Materials and Manufacture
7.2.3 Any specific use limitations placed on the trampoline
5.1 The suspension system shall be designed so as to protect by the manufacturer shall be included in a statement appearing
the performer from injury due to contact with the sharp ends of in a box at the bottom of the first page after the following
the trampoline springs. notice:
5.2 The frame padding shall be designed to remain securely
WARNING
attached to the frame.
5.3 Except for necessary seams, the frame padding shall 7.2.4 Trampoline installation instructions shall be supplied
by the manufacturer to aid the purchaser in proper installation
cover the entire top surface of the frame and be wide enough
to completely cover the entire top surface of the suspension and placement of the trampoline. The installation instructions
shall include the following information:
system and frame. Satisfaction of this requirement shall be
evaluated with no load on the bed. 7.2.4.1 Adequate overhead clearance is essential. A mini-
mum of 24 ft from ground level is recommended. Provide
5.4 The frame padding shall be of a color which contrasts
with the color of the trampoline bed. clearance for wires, tree limbs, and other possible hazards.
7.2.4.2 Lateral clearance is essential. Place the trampoline
5.5 Height of the bed from the ground or floor shall be
sufficient to prevent the bed from contacting the ground or floor away from walls, structures, fences, and other play areas.
Maintain a clear space on all sides of the trampoline.
while bouncing.
5.6 The trampoline shall be designed such that no part of the 7.2.4.3 Place the trampoline on a level surface before use.
7.2.4.4 Use the trampoline in a well-lighted area. Artificial
frame or legs can be contacted by the bed while bouncing.
5.7 All information, instructions, and warnings shall be illumination may be required for indoor or shady areas.
7.2.4.5 Secure the trampoline against unauthorized and
provided in English in addition to any other formats used, for
example, graphical, video, multilingual, etc. unsupervised use.
7.2.4.6 Remove any obstructions from beneath the trampo-
6. Performance Requirements
line.
6.1 The shock-attenuating material used in the frame pad- 7.2.4.7 The owner and supervisors of the trampoline are
ding, as measured to include the frame and a minimum of 2 in. responsible to make all users aware of practices specified in the
from the inside edge of the frame, shall limit the severity index use instructions.
to less than 450, when the same thickness as used in the frame 7.3 Care and Maintenance Instructions:
padding is tested in accordance with Test Method F 355 using 7.3.1 Trampoline care and maintenance instructions shall be
2 2
a 20-lb (9-kg), 20-in. (129-cm ) round, flat head dropped from supplied by the manufacturer to aid the purchaser in the basic
F 381
and proper care and maintenance of the trampoline. 7.5.1.7 Stop bounce by flexing knees as feet come in contact
7.3.2 The manufacturer’s care and maintenance instructions with the trampoline bed. Learn this skill before attempting
for the trampoline shall contain the following information: others.
7.3.2.1 Inspect the trampoline before each use and replace 7.5.1.8 Learn fundamental bounces and body positions thor-
any worn, defective, or missing parts. The following conditions
oughly before trying more advanced skills. A variety of
could represent potential hazards: trampoline activities can be carried out by performing the basic
7.3.2.1.1 Missing, improperly positioned, or insecurely at-
fundamentals in various series and combinations, performing
tached frame padding, one fundamental after another, with or without feet bounces
7.3.2.1.2 Punctures, frays, tears, or holes worn in the bed or
between them.
frame padding, 7.5.1.9 Avoid bouncing too high. Stay low until bounce
7.3.2.1.3 Deterioration in the stitching or fabric of the bed or
control and repeated landing in the center of the trampoline can
frame padding, be accomplished. Control is more important than height.
7.3.2.1.4 Ruptured springs,
7.5.1.10 Focus eyes on the trampoline. This will help
7.3.2.1.5 A bent or broken frame,
control bounce.
7.3.2.1.6 A sagging bed, or
7.5.1.11 Avoid bouncing when tired. Keep turns short.
7.3.2.1.7 Sharp protrusions on the frame or suspension
7.5.1.12 Properly secure the trampoline when not in use.
system.
Protect it against unauthorized use. If a trampoline ladder is
7.4 Warning Information:
used, the supervisor should remove it from the trampoline
7.4.1 All warnings in the information packet shall: (1)be
when leaving the area to prevent unsupervised access by
readily visible, (2) alert the reader to the potential hazard in
children under 6 years of age.
time to take the appropriate action, and (3) have good pictorial,
7.5.1.13 Keep objects away which could interfere with the
word and message legibility.
performer. Maintain a clear area around the trampoline.
7.5.1.14 Do not use the trampoline while under the influ-
NOTE 1—The user of this safety specification is referred to ANSI
ence of alcohol or drugs.
Z535.4 for guidelines on warning labels.
7.5.1.15 For additional information concerning the trampo-
7.4.2 The information packet shall contain the following
line equipment, contact the manufacturer.
warning information:
7.5.1.16 For information concerning skill training, contact a
WARNING
certified trampoline instructor.
7.4.2.1 DO NOT attempt or allow somersaults. Landing on
7.5.1.17 Bounce only when the surface of the bed is dry.
the head or neck can cause serious injury, paralysis, or death,
Wind or air movement should be calm to gentle. The trampo-
even when landing in the middle of the bed.
line must not be used in gusty or severe winds.
7.4.2.2 Do not allow more than one person on the trampo-
7.5.1.18 Read all instructions before using the trampoline.
line. Use by more than one person at the same time can result
Warnings and instructions for the care, maintenance, and use of
in serious injury.
this trampoline are included to promote safe, enjoyable use of
7.4.2.3 Use trampoline only with mature, knowledgeable
this equipment.
supervision.
7.5.2 Additional trampoline instructional materials shall be
7.5 Use Instructions:
supplied by the manufacturer to aid the user in learning the
7.5.1 The use instructions shall include the following infor-
fundamental trampoline skills. These instructional materials
mation:
shall contain illustrations depicting trampolinists performing
the fundamental skills positions, accompanied by printed
WARNING
material describing them and suggesting ways to accomplish
7.5.1.1 DO NOT attempt or allow somersaults. Landing on
them. These instructional materials shall be intended for use
the head or neck can cause serious injury, paralysis, or death,
with consumer trampolines and shall not describe the use of
even when landing in the middle of the bed.
trampoline devices for somersaulting, vaulting, diving, or other
7.5.1.2 Do not allow more than one person on the trampo-
intermediate or advanced skills.
line. Use by more than one person at the same time can result
7.5.3 Suitable materials shall also include information per-
in serious injuries.
taining to:
7.5.1.3 Use trampoline only with mature, knowledgeable
7.5.3.1 Trampoline safety and accident prevention.
supervision.
7.5.3.2 Supervisor’s role in preventing injuries.
7.5.1.4 Trampolines over 20 in. (51 cm) tall are not recom-
7.5.3.3 Responsibilities of the owner/supervisor/instructor,
mended for use by children under 6 years of age.
and
7.5.1.5 Inspect the trampoline before each use. Make sure
7.5.3.4 Responsibilities of the user.
the frame padding is correctly and securely positioned. Replace
any worn, defective, or missing parts.
8. Product Marking
7.5.1.6 Climb on and off the trampoline. It is a dangerous
8.1 Identification
practice to jump from the trampoline to the floor or gr
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