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SAE Z26.1 Document Information:
Title
Safety Glazing Materials for Glazing Motor Vehicles and Motor Vehicle Equipment Operating on Land Highways - Safety Standard
SAE International
Publication Date:
Jan 1, 1996
Scope:
(This foreword is not part of American National Safety Standard
226.1-1996.)
The American National Standard Safety Standard, 226.1-1938, was
developed by a sectional committee, national in scope, functioning
under the procedure of the American National Standards Association
and under the joint sponsorship of the National Bureau of Casualty
and Surety Underwriters (now the American Insurance Association)
and the National Bureau of Standards. It was the first of several
separate standards to be developed within the scope of Standards
Committee 226 on Specifications and Methods of Test for Safety
Glazing Materials. That scope is as follows:
Specifications and methods of test for safety glazing material
(glazing material designed to promote safety and reduce or minimize
the likelihood of personal injury from flying glazing material when
the glazing material is broken) as used for windshields, windows,
and partitions of land and marine vehicles and aircraft.
Since the original formulation of the American National Safety
Standard, 226.1-1938, the development of synthetic plastic
materials has so far advanced that a number of them appear to be
practical for certain uses as safety glazing materials for glazing
motor vehicles operating on land highways; therefore, in the 1966
edition of this standard the foreword and code were modified to the
extent necessary to include these synthetic plastic materials along
with glass under the general term of "safety glazing materials"
reserving the use of the word "glass" as applying only to the
ceramic material, and of the word "plastic" as applying only to
synthetic, organic, plastic materials.
Early in its deliberations, the 226 Committee recognized the
fact that no one set of specifications or methods of test could
well apply to safety glazing materials as used for all purposes.
Therefore, the members decided to prepare a separate standard for
each of the major usages included in the scope of the main project.
In keeping with that decision, this standard, as its title
indicates, pertains only to "Safety Glazing Materials for Glazing
Motor Vehicles and Motor Vehicle Equipment Operating on Land
Highways." Such motor vehicles and motor vehicle equipment shall
include passenger cars, multipurpose passenger vehicles, trucks,
buses, motorcycles, slide-in campers, pickup covers designed to
carry persons while in motion, motorhomes, and trailers.
It is hoped that the test procedures and performance
requirements detailed in this standard may be uniformly adopted by
motor vehicle commissioners and other interested regulatory
officials as the basis for their approval of the safety glazing
materials in motor vehicles and motor vehicle equipment coming
within their jurisdiction, or for incorporation in their
regulations; that they may serve as a guide to automobile
manufacturers as to the safety glazing materials which will be
acceptable to such officials; and that they may enable the consumer
(the commercial operator and the general public) to have assurance
that the safety glazing materials in the motor vehicle that is
purchased should reduce, in comparison with glazing of ordinary
types, the likelihood of injury to persons riding in such motor
vehicles and motor vehicle equipment by these safety glazing
materials whether they may be broken or unbroken.
It is the fundamental purpose of this standard to prescribe the
functional properties of safety glazing materials in such a manner
that they can be used in any place in motor vehicles and motor
vehicle equipment for which they possess those mechanical or
optical properties, or both, that are requisite and appropriate.
For example, safety glazing materials for windshields must pass a
specified group of test requirements, all of which currently can be
met only by certain laminated safety glazing; however, if and when
other safety glazing materials are developed which possess
properties such that they, too, fulfill the requirements of the
prescribed tests for this location, they may also be used; and
similar reasoning would apply for other locations. This standard is
designed to serve two purposes: (1) to afford a basis for standards
for adoption in regulations by governmental regulatory bodies; or
(2) for use by motor vehicle commissioners or others as reference
standards in such cases as they may have discretionary authority to
adopt these or other standards in connection with the approval of
safety glazing materials or other items of use in or on motor
vehicle equipment.
This standard does not state that safety glazing materials shall
be used or to what extent they shall be used in glazing motor
vehicles and motor vehicle equipment. Such requirements rest with
either the legislative or administrative authority. When by law or
regulation escape or emergency egress openings are required and
when such requirement is met by use of glazed openings, Test 25
(see 5.25) is provided as a means of measuring and establishing the
escape value of the safety glazing material.
This standard, which is the result of extended and careful
consideration of available knowledge and experience on the subject,
is intended to provide minimum requirements that are recommended
for use, adoption, and enforcement by federal, state, and local
administrative authorities.
Caution should be exercised not to make laws and regulations
dealing with this subject so inflexible as to preclude subsequent
adoption of technological advancements in the development of safety
glazing materials.
Except for special requirements for specified locations, safety
glazing materials of seven general types can meet some or all
requirements detailed in this standard. All seven types are
commercially feasible today. Each of them possesses its own
distinctive safety characteristics. The seven types are listed
below and are described in Section 1.
(1) Laminated Glass
(2) Glass-Plastic Glazing Material
(3) Tempered Glass
(4) Plastic
(5) Multiple Glazed Unit (Class 1 and Class2)
(6) BuIlet-Resistant Glazing
(7) Bullet-Resistant Shield
The 226 Committee and the Secretariat believe that this standard
reflects the best current technology in the art of automotive
glazing. It is recognized that new developments are to be expected
in safety glazing materials, and that revisions of the standard
will be necessary as the art progresses and as further experience
is gained. It is felt, however, that uniform requirements are very
much needed, that the standard in its present form permits the use
of the more desirable types of safety glazing material snow
commercially available, and that it distinguishes between the
better and the poorer grades of those types, as well as prescribing
and, in some cases, limiting the places at which certain types may
be used.
Definitions are provided in Section 1.
Footnotes to this standard are included for purposes of
clarification.
Suggestions for improvement of this standard will be welcome.
They should be sent to the Secretariat at the Society of Automotive
Engineers, Inc., 3001 W. Big Beaver Road, Suite 320, Troy, Michigan
48084.
This standard was processed and approved for submittal to ANSI
by the Society of Automotive Engineer/American National Standards
Committee on Specifications and Methods of Test for Safety Glazing
Material, 226. Committee approval of the standard does not
necessarily imply that all committee members voted for its
approval. At the time it approved this standard, the 226 Committee
had the following members:
R. L. Morrison, Chairman
J. Pokrzywa, Secretary
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