[Code of Federal Regulations]
[Title 16, Volume 2]
[Revised as of January 1, 2004]
From the U.S. Government Printing Office via GPO Access
[CITE: 16CFR1632.6]
[Page 721-726]
TITLE 16--COMMERCIAL PRACTICES
CHAPTER II--CONSUMER PRODUCT SAFETY COMMISSION
PART 1632--STANDARD FOR THE FLAMMABILITY OF MATTRESSES AND MATTRESS
PADS (FF 4 72, AMENDED)--Table of Contents
Subpart A--The Standard
Sec. 1632.6 Ticking substitution procedure.
(a) This procedure may be used to verify acceptable equivalency if a
mattress or mattress pad manufacturer wishes to change the ticking used
on a particular mattress or mattress pad prototype without conducting a
prototype test as specified in Sec. 1632.4 or Sec. 1632.5. The
procedure includes a ticking classification test that may be used by a
ticking, mattress or mattress pad manufacturer or by a distributor of
ticking.
[[Page 722]]
(b) Definitions. For the purpose of this section the following
definitions apply in addition to those in Sec. 1632.1.
(1) Mattress ticking prototype. Means a ticking of a specific
construction, color, or combination of colors or color pattern, weave
pattern design, finish application, fiber content, and weight per unit
area. With respect to film-coated ticking, a mattress ticking prototype
means in addition to the factors listed above, a given method of
application, chemical formula, and thickness of application of film
coating. With respect to a quilted ticking, a mattress ticking prototype
means the combination of a specific ticking as described above; a
specific filling, thickness, density, and chemical composition; a
specific thread; a specific method of quilting; and a specific backing
fabric construction, weave, finish, fiber content, and weight.
(2) Mattress pad ticking prototype (i) Means a ticking of a specific
construction, color, or combination of colors or color pattern, weave
pattern design, finish application, fiber content, and weight per unit
area. With respect to film-coated ticking, a mattress pad ticking
prototype means in addition to the factors listed above, a given method
of application, chemical formula, and thickness of application of film
coating.
(ii) Quilted ticking is excluded from this definition. Therefore,
the following procedures may not be used to substitute quilted ticking
used on or as a mattress pad.
(c) Scope and application. (1) This procedure provides an
independent evaluation of the cigarette ignition characteristics of
ticking and for the classification of ticking into one of three
performance classes. Class A represents tickings evaluated as acting as
barriers against cigarette ignition; Class B represents tickings
evaluated as having no effect on cigarette ignition; and Class C
represents tickings evaluated as having the potential, in some manner,
to act as a contributor to cigarette ignition.
(2) Substitution of any ticking which has been evaluated as Class A
using the procedure in this Sec. 1632.6 for any other ticking material
shall not be a ``difference in materials'' as that phrase is used in
Sec. Sec. 1632.1 (j) and (k). Consequently, any ticking material
evaluated as Class A under this test procedure may be used on any
qualified mattress prototype or on any qualified mattress pad prototype
without conducting new prototype tests.
(3) Substitution of any ticking which has been evaluated as Class B
using the procedure in this Sec. 1632.6 for the ticking material used
on any mattress prototype or on any mattress pad prototype which was
qualified in prototype testing with a testing material evaluated as
Class B or a Class C shall not be a ``difference in materials'' as that
phrase is used in Sec. Sec. 1632.1 (j) and (k). Consequently, any
ticking material evaluated as Class B under this test procedure may be
used on any mattress or mattress pad which wa qualified in prototype
testing with a Class B or Class C ticking material without conducting
new prototype tests. However, if Class B ticking material is to be used
on any mattress or mattress pad which was qualified in prototype testing
with a Class A ticking material, the mattress prototype or mattress pad
prototype must be requalified, using a Class B ticking.
(4) A ticking material which has been evaluated as Class C using the
procedure in this Sec. 1632.6 may be used only on a mattress or
mattress pad which was qualified in prototype testing with that
particular Class C ticking material. Consequently, a ticking material
evaluated as Class C under this test procedure may not be used on any
mattress or mattress pad which was qualified in prototype testing using
another Class C ticking material, or a Class A or Class B ticking
material, without conducting new prototype tests.
(d) General requirements. (1) This procedure is a ticking prototype
performance classification test. Ticking not classified according to
this procedure may be used on mattresses or mattress pads if the
mattress prototype or mattress pad prototype has been qualified
utilizing the unclassified ticking in question.
(2) Test criterion. (i) Cigarette--An individual cigarette test
location passes the test if the char length is not more than 1 inch
(2.54 cm) in any direction
[[Page 723]]
from the nearest point of the cigarette, and the cotton felt is not
ignited.
CAUTION: In the interest of safety, the test operator should
discontinue the test and record a failure before reaching the 1 inch
(2.54 cm) char length if, in his opinion, an obvious ignition has
occurred.
(ii) Test Specimen--An individual test specimen passes the test if
all three cigarette test locations meet the cigarette test criterion of
this paragraph.
(3) Specimen selection. Three specimens shall be used for each
ticking prototype classification test, with each specimen measuring no
less than 20 inches by 20 inches (50.8 cm x 50.8 cm) square. The three
specimens shall be selected from any fabric piece taken from a ticking
prototype. The specimens shall be representative of the ticking
prototype.
(4) Ticking classification. A ticking prototype is classified as
Class A, Class B, or Class C, in accordance with the following
schedules.
(i) Class A--A ticking prototype is classified as Class A when three
specimens, tested in accordance with Sec. 1632.6(e), meet the test
criterion in Sec. 1632.6(d)(2) when the ticking is tested directly over
the cotton felt on the test box.
(ii) Class B--A ticking prototype is classified as Class B when
three specimens, tested according to Sec. 1632.6(e), meet the test
criterion in Sec. 1632.6(d)(2) when the ticking is tested on a \1/4\
inch \1/32\ inch (6.3 mm .8
mm) thick urethane foam pad covering the cotton felt on the test box.
(iii) Class C--A ticking prototype is classified as Class C when any
specimen tested according to Sec. 1632.6(e), fails to meet the test
criterion in Sec. 1632.6(d)(2) when the ticking is tested on a \1/4\
inch \1/32\ inch (6.3 mm .8
mm) thick urethane foam pad covering the cotton felt on the test box.
(e) Test procedure--(1) Apparatus. For the purpose of this section
the following apparatus and materials are required in addition to that
which is listed in Sec. 1632.4 (a) and (b).
(i) Sheet and sheeting material. Test covers made from sheets or
sheeting material shall not be less than 12 inches by 12 inches (30.48
cm by 30.48 cm) square.
(ii) Template. Designed to allow for a one inch marking around the
placement of the cigarette (see figure 3). Use of this template is
optional.
(iii) Stapler or masking tape or other means of attachment to secure
fabric to test box.
(iv) Mounting box. A 6 inch deep, 12 inch square plywood box. The
box contains two \1/2\ inch in diameter ventilation holes. (See figure
4.)
(v) Cotton felt. (A) The cotton felt shall be a thoroughly-garnetted
mixture of all new material consisting of not less than 67% linters and
of not more than 33% clean picker blend or equivalent binder and not
more than 5% non-cellulosic total content. The felt shall not be
bleached, moistened or chemically treated in any way.
(B) The felt may be re-used repeatedly after completion of each test
by removing all of the smoldering, charred, heat-discolored fibers, or
fibers exposed to water as a result of extinguishing the cotton ignited
by previous test.
(vi) Urethane foam. The urethane foam shall have a density of 1.2 to
1.5 pounds per cubic foot, an indention load deflection of 22 to 35
pounds, with each test specimen measuring no less than 12 inches by 12
inches (30.48 cm by 30.48 cm) square, having a thickness of \1/4\ inch
\1/32\ inch (6.3 mm .8 mm).
The foam shall not be treated with a flame retardant chemical.
(2) Conditioning. The test specimens, cigarettes, laundered sheets
or sheeting material, foam and felt shall be conditioned as described in
Sec. 1632.4(c).
(3) Specimen preparation. (i) Place 907.24
grams (two pounds) of cotton felt in the test box, allowing the felt to
protrude above the opening of the box to a height of up to 3 inches
(7.62 cm) at the crown.
(ii) For the first part of this test, place a 12 inches by 12 inches
(30.48 cm by 30.48 cm) square urethane foam pad on top of the cotton
felt. Stretch the ticking specimen over the foam pad and fasten it to
the sides of the test box using a stapler or tape. Be careful to avoid
wrinkles in the fabric and have sufficient tautness to assure firm
contact between the fabric and the filling materials in the test box.
[[Page 724]]
(4) Testing. (i) Ticking specimens shall be tested in a testroom
with atmospheric conditions of a temperature greater than 18
C (65 F) and a relative humidity less than
55%.
(ii) Three cigarettes shall be burned on each ticking specimen, with
no more than one cigarette burning at any time. At least one cigarette
shall be placed on the most prominent part of the color and weave
pattern design in the ticking. If the ticking is quilted, one cigarette
shall be placed over the thread or in the depression created by the
quilting process. Each cigarette must be positioned no less than two
inches (5.08 cm) from any other cigarette or the edge of the box.
(iii) Light and place one cigarette on the test specimen.
Immediately cover the burning cigarette with a sheet test cover. The
cigarette shall be well lighted but not burned more than 4 mm (0.16
inch) when placed on the test specimen. The cigarette may be supported
by three straight pins such that one pin supports the cigarette at the
burning end, one at the center and one at the butt. The heads of the
pins must be below the upper surface of the cigarette. Upon completion
of the three cigarette burns and removal of the fabric and foam
specimens, remove all of the char or heat discoloration on the cotton
felt as stated in Sec. 1632.6(e)(v)(B). Fresh new felt shall be added
to replace the discarded fibers in the amount necessary to maintain the
full 907.24 grams (two pounds) of felt for each
test.
(iv) If the cigarette extinguishes before burning its full length,
the test must be repeated with a freshly lit cigarette on a different
portion of the ticking specimen until either three cigarettes have
burned their full lengths or three cigarettes have extinguished. Report
result for each cigarette as pass or fail as defined in Test Criterion
Sec. 1632.6(d)(2). An obvious ignition is recorded as a failure.
(v) If ignition occurs with any of the three cigarette burns on the
ticking specimen, terminate testing of that specimen and classify
according to Sec. 1632.6(d)(4).
(vi) If all cigarette test locations meet the Test Criterion in
Sec. 1632.6(d)(2), repeat procedure outlined in Sec. 1632.6(e)(4)(iii)
for the second part of the test with new ticking specimens that will be
retested directly over the cotton felt, without the urethane foam pad.
Remove the urethane foam pad and charred or heat discolored area from
the cotton felt as specified in Sec. 1632.6(e)(v)(B) prior to testing.
Record the test results as pass or fail as defined in Test Criterion
Sec. 1632.6(d)(2) and classify according to Sec. 1632.6(d)(4).
(5) Records. Records of any ticking classification test results
relied upon by the mattress or mattress pad manufacturer or importer
shall be maintained in accordance with rules and regulations established
by the Consumer Product Safety Commission in Sec. 1632.31(c). As
provided by Sec. 1632.31(c)(6), manufacturers or importers of
mattresses or mattress pads may rely on a certification of compliance
with this section of the standard provided by the ticking manufacturer
or distributor; however, if a mattress or mattress pad fails to comply
with the standard, the mattress or mattress pad manufacturer or importer
must assume full responsibility under the standard. The Commission has
no authority under this standard to compel ticking manufacturers or
distributors to comply with this section or to establish, maintain and
provide upon request, the records specified in Sec. 1632.31(c).
[[Page 725]]
[GRAPHIC] [TIFF OMITTED] TC03OC91.099
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[GRAPHIC] [TIFF OMITTED] TC03OC91.100
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