ASTM C1349-96
(Specification)Standard Specification for Architectural Flat Glass Clad Polycarbonate
Standard Specification for Architectural Flat Glass Clad Polycarbonate
SCOPE
1.1 This specification covers the quality requirements for cut sizes of glass clad polycarbonate (GCP) for use in buildings as security glazing.
1.2 The values stated in inch-pound units are to be regarded as the standard. The values given in parentheses are for information only.
1.3 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.
General Information
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Standards Content (Sample)
NOTICE: This standard has either been superceded and replaced by a new version or discontinued.
Contact ASTM International (www.astm.org) for the latest information.
Designation: C 1349 – 96
Standard Specification for
Architectural Flat Glass Clad Polycarbonate
This standard is issued under the fixed designation C 1349; 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 D 1005 Test Method for Measurement of Dry-Film Thick-
ness of Organic Coatings Using Micrometers
1.1 This specification covers the quality requirements for
D 1044 Test Method for Resistance of Transparent Plastics
cut sizes of glass clad polycarbonate (GCP) for use in buildings
to Surface Abrasion
as security glazing.
D 3763 Test Method for High-Speed Puncture Properties of
1.2 The values stated in inch-pound units are to be regarded
Plastics Using Load and Displacement Sensors
as the standard. The values given in parentheses are for
E 308 Practice for Computing the Colors of Objects by
information only.
Using the CIE System
1.3 This standard does not purport to address all of the
2.3 ANSI Standard:
safety concerns, if any, associated with its use. It is the
Z97.1 Safety Glazing Materials Used in Buildings—Safety
responsibility of the user of this standard to establish appro-
Performance Specifications and Methods of Tests
priate safety and health practices and determine the applica-
2.4 Federal Document:
bility of regulatory limitations prior to use.
CPSC 16 CFR 1201 Consumer Product Safety Commission
2. Referenced Documents Safety Standard for Architectural Glazing Materials
2.5 Other Document:
2.1 Reference to these documents shall be the latest revision
Uniform Building Code Standard 52-4
unless otherwise specified by the authority applying this
specification.
3. Terminology
2.2 ASTM Standards:
3.1 Definitions—Refer to the terminology in the ASTM
C 162 Terminology of Glass and Glass Products
standards referenced in 2.2, as appropriate.
C 1036 Specification for Flat Glass
3.1.1 blemishes in flat glass—refer to Specification C 1036,
C 1048 Specification for Heat-Treated Flat Glass—Kind
2 as appropriate.
HS, Kind FT Coated and Uncoated Glass
3.1.2 blemishes in polycarbonate—refer to Appendix X1.
C 1172 Specification for Laminated Architectural Flat
2 3.2 Definitions of Terms Specific to This Standard:
Glass
3.2.1 adhesion chips—glass particles or crystalline material
D 256 Test Method for Determining the Pendulum Impact
3 that is permanently bonded to the surface of a lite.
Resistance of Notched Specimens of Plastics
3.2.2 aliphatic polyether urethane—a thermoplastic inter-
D 638 Test Method for Tensile Properties of Plastics
layer required to bond polycarbonate lite to polycarbonate or
D 648 Test Method for Deflection Temperature of Plastics
glass lite.
Under Flexural Load
3.2.3 asymmetrical construction—see non-symmetrical.
D 790 Test Methods for Flexural Properties of Unreinforced
3.2.4 blow-in—a separation of glass or polycarbonate and
and Reinforced Plastics and Electrical Insulating Materi-
3 interlayer at or close to the laminate edge.
als
3.2.5 boil (bubble)—a gas pocket in the interlayer material
D 792 Test Methods for Density and Specific Gravity (Rela-
or between the glass or polycarbonate and the interlayer.
tive Density) of Plastics by Displacement
D 1003 Test Method for Haze and Luminous Transmittance
of Transparent Plastics
Annual Book of ASTM Standards, Vol 06.01.
Annual Book of ASTM Standards, Vol 08.02.
1 6
This specification is under the jurisdiction of ASTM Committee C-14 on Glass Available from American National Standards Institute, 11 W. 42nd St., 13th
and Glass Products and is the direct responsibility of Subcommittee C14.08 on Flat Floor, New York, NY 10036.
Glass. Available from Standardization Documents Order Desk, Bldg. 4 Section D, 700
Current edition approved July 10, 1996. Published September 1996. Robbins Ave., Philadelphia, PA 19111-5094, Attn: NPODS.
2 8
Annual Book of ASTM Standards, Vol 15.02. Available from International Conference of Building Officials, 5360 South
Annual Book of ASTM Standards, Vol 08.01. Workman Mill Road, Whittier, CA 90601.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
NOTICE: This standard has either been superceded and replaced by a new version or discontinued.
Contact ASTM International (www.astm.org) for the latest information.
C1349–96
3.2.6 bond—adhesion of the glass or polycarbonate ply to 3.2.32 offset—a mismatch of the edges of two or more glass
the interlayer. or polycarbonate plies as part of the design of the laminate.
3.2.7 bow and warp—a curve, bend, or other deviation from
3.2.33 ply—one sheet or panel of glass or polycarbonate in
flatness.
a laminate.
3.2.8 carbon specks—flakes of carbon inherent in the manu-
3.2.34 PVB—a polyvinyl butyral interlayer used to bond
facturing and extrusion of polycarbonate sheets.
glass to glass.
3.2.9 crizzle—an imperfection in the form of a multitude of
3.2.35 scratch—damage on a glass or polycarbonate surface
fine surface fractures.
in the form of a line caused by the relative movement of an
3.2.10 deflection temperature—the softening temperature as
object across and in contact with the surface.
determined by applying heat and load to a material.
3.2.36 separation—see delamination.
3.2.11 delamination—a condition in which one or more of
3.2.37 short interlayer—a condition of the laminate in
the lites of glass or polycarbonate loses the bond between the
which the interlayer does not extend to the edge.
glass or polycarbonate lite and the interlayer.
3.2.38 specific gravity—the ratio of a given volume of a
3.2.12 discoloration—areas that are blushed, whitish, or
material to the weight of an equal volume of water at standard
yellow in appearance.
conditions.
3.2.13 distortion—the inability to see an image clearly; the
3.2.39 streak—a smudging effect in the laminate due to dirt
image is twisted out of natural shape.
or primers applied during manufacturing.
3.2.14 edge boil—see boil.
3.2.15 elongation—the increase in length of a material that 3.2.40 surfaces—surfaces of glass and polycarbonate faces
are counted from the exterior (threat) to the interior (protected).
has been stretched.
If a laminate of glass-interlayer-polycarbonateinterlayer glass
3.2.16 flammability rating—the rate of burn; a CC-1 rating
is used as an example, the No. 1 surface is the surface that is
is based on a rate of burn less than one in./min.
to the exterior; the Nos. 2 and 3 surfaces are the next glass and
3.2.17 flexural modulus—the stiffness/rigidity of a material
polycarbonate surfaces, respectively, separated by and bonded
as determined by bending the material at stresses less than that
to the interlayer material; the Nos. 4 and 5 surfaces are the
required to produce permanent deformation.
following polycarbonate and glass surfaces, respectively, that
3.2.18 fuse—see adhesion chips.
are separated by and bonded to the interlayer; the No. 6 surface
3.2.19 glass clad polycarbonate (GCP)—one or more lites
is the surface that is to the interior.
of flat glass bonded with an aliphatic urethane interlayer to one
3.2.41 symmetrical—an assembly for which the thickness
or more sheets of extruded polycarbonate in a pressure/
temperature/vacuum laminating process. (PVB may be used to and types of glass, polycarbonate, and interlayers are the same
about the thickness center.
bond glass to glass only.)
3.2.20 hair—a thin filament resembling thread or animal
3.2.42 tabor abrasion—a measure of the effect of a specific
hair.
type of abrasion; the change in percent haze is measured for
3.2.21 haze—the percentage of transmitted light that, in transparent materials, and weight loss is measured for opaque
passing through a specimen, deviates from incident beam by
materials.
forward scattering.
3.2.43 template—a pattern used as a guide to define the
3.2.22 inside dirt—foreign material trapped inside the lami-
overall size and shape of a cut lite.
nate.
3.2.44 tensile strength—the load that causes a material to
3.2.23 instrumented dart—a test evaluating the puncture
break during elongation/stretching.
properties of plastics over a range of test velocities.
3.2.45 unlaminated area—an area of the laminate that failed
3.2.24 interlayer—a material developed specifically for
to laminate during the laminating process. This blemish is
bonding glass lites to glass lites, polycarbonate to polycarbon-
discernible due to the textured appearance of the interlayer
ate, or glass and polycarbonate lites together.
material.
3.2.25 interlayer scuff—a dirt streak.
3.2.26 izod milled notch—a test evaluating the resistance of
4. Classification
plastics to breakage by flexural shock. The notch in the izod
4.1 Kinds—Glass clad polycarbonate furnished under this
specimen serves to concentrate the stress, minimize plastic
specification shall be of the following kinds, as specified:
deformation, and direct the fracture to the part of the specimen
behind the notch. 4.1.1 Kind GCP, Single Core (SC)—Glass clad polycarbon-
ate consisting of one or more lites of flat glass bonded with an
3.2.27 laminate—see glass clad polycarbonate.
aliphatic urethane interlayer to one sheet (single core) of
3.2.28 lint—short fibers of yarn or fabric trapped within the
polycarbonate in a pressure/temperature/vacuum laminating
laminate.
process.
3.2.29 lite—an assembly of glass clad polycarbonate.
3.2.30 mismatch—misalignment of the edges of two or 4.1.2 Kind GCP, Multiple Core (MC)—Glass clad polycar-
more plies of glass or polycarbonate.
bonate consisting of one or more lites of flat glass bonded with
3.2.31 non-symmetrical—an assembly for which the thick- an aliphatic urethane interlayer to more than one sheet (mul-
ness and types of glass, polycarbonate, and interlayer are not tiple core) of polycarbonate in a pressure/temperature/vacuum
the same about the thickness center. laminating process.
NOTICE: This standard has either been superceded and replaced by a new version or discontinued.
Contact ASTM International (www.astm.org) for the latest information.
C1349–96
ABC
TABLE 1 Maximum Allowable Overall Bow and Warp
5. Ordering Information
Maximum Allowable Bow and
5.1 Procurement Information—Purchasers should select the
Longest Edge Dimension,
Warp,
in. (mm)
applicable options permitted in this section and include the
in. (mm)
following information in procurement documents:
0 to 18 (0 to 460) ⁄32 (2.4)
5.1.1 Title, number, and date of this specification; 3
Over 18 to 36 (over 460 to 910) ⁄16 (4.8)
Over 36 to 48 (over 910 to 1220) ⁄4 (6.4)
5.1.2 Kind of GCP, as referred to in this specification (see
Over 48 to 60 (over 1220 to 1520) ⁄16 (7.9)
Section 4);
Over 60 to 96 (over 1520 to 2440) ⁄2 (12.5)
5.1.3 Edgework requirements (see 8.2);
A
The above table is for GCP of any overall thickness having glass on both sides.
5.1.4 Overall nominal thickness of the GCP, including the B
For GCP with glass on both sides in a strip condition or for GCP with glass on
one side and exposed polycarbonate on the opposing side in a nonstrip condition,
nominal thickness and treatment of glass plies and the nominal
the overall bow and warp is to be multiplied by 1.5. Strip condition is defined as a
thicknesses of the polycarbonate and interlayer material;
GCP product with a long side to short side ratio of 4 to 1 or greater.
C
5.1.5 Nominal length and width of the GCP;
For GCP with glass on one side and exposed polycarbonate on the opposing
side in a strip condition, the overall bow and warp is to be multiplied by 2.0.
5.1.6 Blueprint, drawing, template, orientation, or other
information useful to the manufacturer regarding installation of
the product;
incidence with the light having the spectral composition of the
5.1.7 Color or tint of the GCP laminate (tinted glass,
International Commission on Illumination (CIE) illuminate C.
interlayer, polycarbonate, or combinations);
Measure the ratio of transmittance to incident luminous flux by
5.1.8 Required minimum visible light transmittance of the
calculating from the spectral distribution of illuminate C as
laminate;
defined by Practice E 308.
5.1.9 Security and safety standards or regulations to which
the laminate must conform (see 7.1 and 7.2);
8. Fabrication Requirements
5.1.10 Schedule requirements; and
8.1 Dimensional Fabrication—All dimensional fabrication,
5.1.11 All other standards to which the laminate must
such as cutting to overall dimensions, edgework, drilling,
conform.
notching, grinding, sandblasting, and etching, on laminates
5.2 Packaging Requirements—Glass and polycarbonate
incorporating heat-strengthened, chemically strengthened, or
packaging and protection will be standard manufacturers’
fully tempered glass must be performed prior to strengthening
practices unless otherwise specified. Consult manufacturers
or tempering. In addition, custom drilling of any GCP, includ-
before specifying.
ing speakholes and pass-through holes, may invalidate perfor-
6. Other Requirements mance capabilities and is not recommended.
8.2 Edge:
6.1 Heat-strengthened or fully tempered glass plies shall
8.2.1 Most GCP laminates incorporate heat-strengthened,
conform to the requirements of Specification C 1048.
chemically strengthened, or fully tempered glass. Additional
6.2 Annealed glass lites shall conform to the requirements
edgework after strengthening or laminating compromises edge
of Specification C 1036.
strength and is, therefore, not recommended (also see 8.1).
6.3 Polycarbonate sheets shall conform to the requirements
Some mismatch can be expected with these laminates.
of Appendix X1.
8.2.2 For GCP made with annealed glass, an edge shall be
6.4 The aliphatic polyether urethane interlayer shall con-
cut, sawed, ground, sanded to remove sharp edges only,
form to the requirements of Appendix X2.
seamed, beveled, or mitered, as specified.
6.5 The polyvinyl butyral interlayer shall conform to the
8.3 Marking:
manufacturer’s specifications.
8.3.1 Each laminate shall bear the trademark or name of the
6.6 Laminates specified for security glazing shall meet the
GCP manufacturer unless otherwise specified.
applicable requirements of the security glazing standards (see
8.3.2 GCP intended for safety glazing applications specified
7.1).
by building codes shall be marked permanently with the name
6.7 Laminates specified for safety glazing shall meet the
or trademark of the GCP manufacturer and the designation of
requirements of the specified safety glazing standards (see 7.2).
the applicable safety glazing standard.
7. Test Methods
8.4 Thickness—Since there are many possi
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