[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: 16CFR1632.6]

[Page 723-728]
 
                     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.
    (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

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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 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).

[[Page 725]]

    (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.
    (4) Testing. (i) Ticking specimens shall be tested in a testroom 
with atmospheric conditions of a temperature greater than 18 [deg]C (65 
[deg]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

[[Page 726]]

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).

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