[Code of Federal Regulations]
[Title 16, Volume 2]
[Revised as of January 1, 2007]
From the U.S. Government Printing Office via GPO Access
[CITE: 16CFR1201.4]
[Page 200-204]
TITLE 16--COMMERCIAL PRACTICES
CHAPTER II--CONSUMER PRODUCT SAFETY COMMISSION
PART 1201_SAFETY STANDARD FOR ARCHITECTURAL GLAZING MATERIALS--Table
of Contents
Subpart A_The Standard
Sec. 1201.4 Test procedures.
(a) Types of tests--(1) Impact test. Specimens shall be struck as
prescribed by paragraph (d)(1) of this section using equipment specified
by paragraphs (b) (1) and (2) of this section. Results of the impact
test are to be interpreted in accordance with paragraph
[[Page 201]]
(e)(1) of this section. The test specimens shall be selected in
accordance with paragraphs (c) (1) and (2) of this section.
(2) Accelerated environmental durability tests. Each specimen of
glazing material subject to this part 1201 shall be tested in accordance
with the accelerated tests referenced in table 1, ``Accelerated Tests''
of this section. However, tempered glass, wired glass, and annealed
glass are not required to be subjected to the accelerated environmental
durability tests.
Table 1--Accelerated Test (Applicable Paragraphs)
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Criteria for
Glazing materials Specimen Test equipment Exposure passing
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Laminated glass Sec. 1201.4(c)(1) and Sec. Sec. Sec.
(c)(3)(i) 1201.4(b)(3)(i) 1201.4(d)(2)(i) 1201.4(e)(2)(i)
Organic coated glass Sec. 1201.4(c)(1) and Sec. Sec. Sec.
(c)(3)(ii)(B) 1201.4(b)(3)(ii) 1201.4(d)(2)(ii) 1201.4(e)(2)(ii)
(B) (B)
Tempered glass Exempt ................. ................. .................
Wired glass Exempt ................. ................. .................
Annealed glass Exempt ................. ................. .................
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(3) Separate testing is required for different glazing materials or
for differences within a type of glazing material that could noticeably
affect performance in the impact or environmental durability tests. Such
differences could include (but are not limited to): Nominal thickness or
thicknesses, method of manufacture (in appropriate cases), types and
amounts of additives, and composition of base materials and adhesives.
(b) Test equipment--(1) Impact test frame and subframe. (See figures
1, 2, 3, and 4.) (i) The impact test frame shall be constructed to
minimize movement and deflection of its members during testing. For this
purpose, the structural framing and bracing members shall be steel
angles 3 inches by 5 inches by \1/4\ inch (7.7 centimeters by 12.7
centimeters by 0.7 centimeters) or other sections and materials of equal
or greater rigidity.
(ii) The structural framing shall be welded or securely bolted at
the corners and braced by one of the alternate methods shown in figure 1
and shall be securely bolted to the floor.
(iii) The inner subframe (see figures 2, 3, and 4) for securing the
test specimen on all four edges shall be reinforced at each corner. The
material is shown as wood in figure 3, but other materials may be used:
Provided, The test specimen will contact only the neoprene strips, which
shall have a shore A durometer hardness of 30 to 50.
(iv) Any reasonable means may be used to secure the subframe to the
test frame so long as the mounting is secure and the pressure on the
glazing in the subframe is not significantly altered when the subframe
is removed.
(v) Pressures on the test specimen shall be controlled, and the
compression of the neoprene strips shall be between 10 and 15 percent of
the original thickness of the neoprene. Securing methods such as wing
bolts and clamps shall be uniformly spaced no greater than 18 inches (45
centimeters) apart with no fewer than two on any edge. To limit the
compression of the neoprene and prevent distortion of the subframe,
metal shims of an appropriate thickness shall be used as shown in
figures 3 and 4.
(2) Impactor. (i) The impactor shall be a leather punching bag as
shown in figure 5 on this section. The bag shall be filled with No. 7\1/
2\ chilled lead shot to a total weight of completed assembly as shown in
figure 5, of 100 pounds 4 ounces (45.360.11 kilograms). The rubber bladder shall be left in
place and filled through a hole cut into the upper part. After filling
the rubber bladder, the top should be either twisted around the threaded
metal rod below the metal sleeve or pulled over the metal sleeve and
tied with a cord or leather thong. Note that the hanging strap must be
removed. The bag should be laced in the normal manner. The exterior of
the bag shall be completely covered by \1/2\ inch (1.3 centimeters) wide
glass filament reinforced pressure sensitive tape. (Figure 5.)
(ii) Provisions shall be made for raising the impactor or to drop
heights of up to 48 inches (1.22 meters). At its release it shall have
been supported so that the rod going through its center
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was in line with the steel support cable in a manner designed to
minimize wobble or oscillation after its release.
(3) Environmental durability test equipment--(i) Boil test. Two
containers of water shall be provided with means to maintain one at
150[deg] 5 [deg]F (66[deg] 2
[deg]C) and the second at a slow boil at atmospheric pressure. The
containers shall be large enough to accept a rack holding three
specimens, each 12 inches (30 centimeters) square, of the glazing
material in a vertical position. The rack shall be positioned so that
each specimen is surrounded by at least one inch (2.5 centimeters) of
water.
(ii) Simulated weathering test. The equipment shall be a xenon arc
(water-cooled) Weather-Ometer employing a lamp rated at 6500 watts and
automatic light monitoring and control systems. Borosilicate inner and
outer filters shall be used. An appropriate water spray cycle shall be
used. Operating procedures shall be in accordance with ASTM G 26-70,
``Standard Recommended Practice for Operating Light--and Water-Exposure
Apparatus (Xenon-Arc Type) for Exposure of Nonmetallic Materials,''
April 13, 1970, as augmented for plastics by ASTM D 2565-70, ``Standard
Recommended Practice for Operating Xenon-Arc Type (Water-Cooled) Light-
and Water-Exposure Apparatus for Exposure of Plastics,'' Procedure B,
June 12, 1970, which are incorporated by reference. Copies of both
documents are available from the American Society for Testing and
Materials, 1916 Race Street, Philadelphia, Pennsylvania 19103. They are
also available for inspection 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.
This incorporation by reference was approved by the Director of the
Federal Register. These materials are incorporated as they exist in the
edition which has been approved by the Director of the Federal Register
and which has been filed with the Office of the Federal Register.
(c) Test specimens--(1) Condition of specimens. All specimens shall
be tested as supplied by the manufacturer, following removal of any
temporary protective masking materials. No tests shall be commenced
before the specimens have been stored in the laboratory for 4 hours.
Specimens shall be arranged to permit free circulation of air to all
surfaces during this period.
(2) Impact specimens. Impact specimens shall be of the largest size
manufactured up to a maximum width of 34 inches (86 centimeters) and a
maximum height of 76 inches (1.9 meters). Specimens shall be tested for
each nominal thickness offered by the manufacturer.
(3) Environmental durability specimens--(i) Boil test. Three pieces
12 inches by 12 inches (30 centimeters by 30 centimeters) with nominal
thickness identical to those submitted for the impact test shall be
used.
(ii) Weathering tests--(A) [Reserved]
(B) Organic-coated glass--(1) Orientation specified. Six organic-
coated glass specimens 2 inches by 6 inches (5 centimeters by 15
centimeters) by nominal thickness identical to those submitted for the
impact test shall be used.
(2) Orientation unspecified. Nine organic-coated glass specimens, 2
inches by 6 inches (5 centimeters by 15 centimeters) by nominal
thickness identical to those submitted for the impact test shall be used
except that when the glazing material is symmetric across its thickness,
six specimens may be used.
(iii) Indoor service. Four additional samples identical to those
submitted for the impact test.
(d) Test procedures--(1) Impact test procedure. Each specimen shall
be struck within 2 inches (5 centimeters) of its geometric center with
the impactor dropped from a single height, designated according to the
product category. Specimens for Category I shall be impacted one time
from a drop height of 18 to 18\1/2\ inches (458 to 470 millimeters).
Specimens for Category II shall be impacted one time from drop height of
48 to 48\1/2\ inches (1.22 to 1.23 meters). For all specimens that are
not symmetric from surface to surface, an equal number of specimens
shall be impacted on each side. For glazing materials which will be
evaluated by paragraph (e)(1)(iii) of this section, this impact test
procedure is not required.
[[Page 203]]
(2) Environmental durability test procedures--(i) Boil test. The
specimens shall be immersed in the 150 F (66 [deg]C) water for 3
minutes. They shall then be quickly removed and immersed in the boiling
water and left there for 2 hours. The specimens shall then be removed,
cooled, and dried for examination as specified in paragraph (e)(2)(i) of
this section.
(ii) Accelerated weathering test. The specimens shall be retained in
the Weather-Ometer (paragraph (b)(3)(ii) of this section) for a period
of 12001 hours, and exposed to a radiant flux of
50 microwatts per square centimeter (12 calories per second per square
centimeter) while monitoring at a wavelength of 340 nanometers.
(A) [Reserved]
(B) Organic-coated glass--(1) Orientation specified. Three specimens
shall be mounted with the surface that is intended to be oriented
indoors faced away from the radiation source; the other three specimens
shall be kept in darkness at 73 [deg]F (23 [deg]C) for use as controls.
Materials so tested shall be labeled according to Sec. 1201.5(c) of
this part 1201.
(2) Orientation unspecified. Three specimens shall be mounted with
one of the surfaces toward the radiation; three specimens shall be
mounted with the other surface toward the radiation, and three specimens
shall be kept in darkness at 73 [deg]F (23 [deg]C) for use as controls.
When the glazing material is symmetric across its thickness, three
specimens shall be irradiated.
(e) Interpretation of results--(1) Impact test. A glazing material
may be qualified for use in both Category I and Category II products if
it meets the impact requirements for Category II. A glazing material
shall be judged to pass the impact test if the specimen tested meets any
one of the criteria listed in paragraphs (e)(1) (i) through (v) of this
section:
(i) When breakage occurs (numerous cracks and fissures may occur) no
opening shall develop in the test sample through which a 3 inch (76
millimeter) diameter solid steel sphere, weighing 4 pounds 3 oz (1.810.08 kilograms), passes
when placed (not dropped) in the opening and permitted to remain for a
period of one second. For this criterion, the sample after being
impacted shall be placed, while remaining in the subframe, in a
horizontal, impact side up position with a minimum of one foot (31
centimeters) of free space immediately beneath the specimen.
(ii) When breakage occurs, what appear to be the 10 largest
particles shall be selected within 5 minutes subsequent to the test and
shall weigh no more than the equivalent weight of 10 square inches (64
square centimeters) of the original specimen. For the purposes of this
section particle means a portion of a broken test specimen which is
determined by identifying the smallest possible perimeter around all
points in the portion of the broken test specimen, always passing along
cracks or exposed surfaces.
(iii) [Reserved]
(iv) The specimen does not remain within the subframe and no
breakage is caused by the impactor.
(v) The specimen does not break.
(2) Environmental durability tests-- (i) Boil test. The glass itself
may crack in this test, but no bubbles or other defects shall develop
more than \1/2\ inch (12 millimeters) from the outer edge of the
specimen or from any crack that may develop. Any specimen in which the
glass cracks to an extent that confuses the interpretation of the
results shall be discarded, and another specimen shall be tested in its
stead.
(ii) Accelerated weathering test--(A) [Reserved]
(B) Organic-coated glass. Specimens shall be judged satisfactory if
they pass both the adhesion test and the tensile test described below in
paragraph (e)(ii)(B) (1) and (2) of this section.
(1) Adhesion test (organic-coated glass only)--(i) Specimens. The
specimens for this test are the 2 inch by 6 inch (5 centimeters by 15
centimeters) weathered specimens and the control specimens. The
specimens shall be conditioned just prior to the performance of the
adhesion test at 73[deg] 6 [deg]F (23[deg] 3 [deg]C) and 505 percent relative
humidity for 24 hours.
(ii) Apparatus. The test apparatus shall consist of a constant-rate-
of-extension-type (CRE) tensile tester with the moving crosshead set to
move at 12 inches per minute (5 millimeters per
[[Page 204]]
second) and load range such that the average pull force will fall at 30
to 50 percent of full scale. A cutter shall be used containing new razor
blades for cutting 1 inch (25 millimeter) wide specimens of the organic
coating on the glass. The razor blades shall be used one time only.
(iii) Procedure. Using the razor cutter, cut a straight, 1 inch (25
millimeter) wide strip of the organic coating in the lengthwise
direction of the glass specimen along and within \1/4\ inch (6
millimeters) of one edge. Peel back, cleanly and evenly, about 2 inches
(50 millimeters) of one end of the 1 inch (25 millimeters) wide organic
strip. Attach a strip of reinforced pressure sensitive tape to the side
of the organic strip opposite the adhesive, to extend this free end to
about 8 inches (200 millimeters) in length. Place the end of the glass
panel from which the organic strip was removed in the lower clamp of the
tensile tester and the free end of the tape in the upper clamp. Peel the
remainder of the organic strip from the glass mechanically and obtain a
record of the pull force value. Determine and record the average pull
force value for each specimen from the chart. Weathered and control
specimens are to be tested alternately.
(iv) Interpretation of results. The organic-coated glass adhesion
shall be judged satisfactory if the average pull force for the weathered
specimens is no less than 90 percent of the average pull force for the
control specimens.
(2) Tensile strength test (organic-coated glass only). (i) The
specimens for this test are the same 2 inch by 6 inch (5 centimeter by
15 centimeter) specimens used in the adhesion test.
(ii) Apparatus. The CRE tensile tester shall be used with the moving
crosshead set to move at 2 inches per minute (0.8 millimeter per second)
and the load range such that the specimens will break at 30 to 60% of
full scale. A cutter shall be used containing new razor blades for
cutting \1/2\ inch (12 millimeter) wide specimens of the organic coating
on the glass. The razor blades shall be used one time only.
(iii) Procedure. Using the \1/2\ inch (12 millimeter) razor cutter,
cut a straight strip of the organic coating in the lengthwise direction
of the glass specimen for the full 6 inch (15 centimeter) length.
Carefully peel this strip from the glass panel and test it for breaking
strength in the tensile tester.
(iv) Interpretation of results. The organic coating tensile strength
shall be judged satisfactory if the average tensile value of the
weathered specimens is no less than 75 percent of the average of the
control specimens. Weathered and control specimens are to be tested
alternately.
(Sec. 9(e) Pub. L. 92-573, 86 Stat. 1215; (15 U.S.C. 2058(e)); (5 U.S.C.
553); Sec. 9(h), Consumer Product Safety Act, as amended by the Consumer
Product Safety Amendments of 1981 (Pub. L. 92-673, as amended by Pub. L.
97-35, 15 U.S.C. 2057(h)) and 5 U.S.C. 553)
[42 FR 1441, Jan. 6, 1977, as amended at 43 FR 43708, Sept. 27, 1978; 43
FR 57594, Dec. 8, 1978; 45 FR 66007, Oct. 6, 1980; 46 FR 63250, Dec. 31,
1981; 47 FR 27857, June 28, 1982]