ASTM F826-94(1999)

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An American National Standard
Designation: F 826 – 94 (Reapproved 1999)
Standard Specification for
Tops, Furniture, Marine, Steel
This standard is issued under the fixed designation F 826; 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 3. Terminology
1.1 This specification covers the construction of steel furni- 3.1 Definitions of Terms Specific to This Standard:
ture tops for use where invoked by other marine furniture 3.1.1 case goods—furniture items having drawers, a cabinet
specifications. with doors, or both.
1.2 This standard applies to tops for furniture case goods 3.1.2 edge binder—the strips of metal or other material
only such as chests of drawers, log desks with cabinets, and so applied to the edges of a top.
forth. 3.1.3 lee rails—extensions above the surface of furniture
1.3 The values stated in inch-pound units are to be regarded tops that retain items placed on top.
as the standard. The metric equivalents, given in parentheses, 3.1.4 substrate material—the core, or structural material of
are provided for information only. the top, to which the melamine laminate is directly bonded.
3.1.5 tops—the horizontal surface that makes up the upper
2. Referenced Documents
exposed surface of furniture items.
2.1 ASTM Standards:
4. Classification
A 366/A 366M Specification for Commercial Steel (CS)
Sheet, Carbon, (0.15 Maximum Percent) Cold-Rolled 4.1 Tops shall be of the following types as required by the
B 16/B 16M Specification for Free-Cutting Brass Rod, Bar specifications for the item of furniture and as indicated in the
and Shapes For Use in Screw Machines ordering documents. See Fig. 1, Fig. 2, Table 1, and Table 2 for
B 221 Specification for Aluminum and Aluminum-Alloy details.
Extruded Bars, Rods, Wire, Profiles, and Tubes 4.1.1 Type I—Top on which the edge binder is flush with the
D 907 Terminology of Adhesives top and the substrate material is steel.
2.2 National Electrical Manufacturer’s Association: 4.1.2 Type II—Top on which the edge binder projects above
ANSI/NEMA LD-3 High Pressure Decorative Laminates the upper surface of the top to act as a lee rail and the substrate
2.3 American Institute of Steel Construction Manual: material is steel.
AISC Wire and Sheet Metal Gages— Equivalent Thickness 4.1.3 Type III—Top on which a lee rail is applied to the
in Decimals of an Inch, U.S. Standard Gage for Uncoated upper surface of the finished top, the top has a self edge
Hot And Cold Rolled Sheets securely bonded to the finished top, and the substrate material
2.4 American National Standards Institute Standard: is a particle or mineral board core.
A208.1 American National Standard for Mat Formed Par- 4.1.4 Type IV—Top is an insert panel and the edge binder is
ticle Board an integral part of the supporting furniture unit.
4.1.4.1 Grade 1—Substrate material and edge reinforce-
ments for Types I, II, and IV Grade 1 tops shall be a minimum
This specification is under the jurisdiction of ASTM Committee F-25 on Ships
of 16 USSG (0.0598-in. or 1.6-mm) steel in accordance with
and Marine Technology and is the direct responsibility of Subcommittee F25.03 on
Specification A 366/A 366M.
Outfitting.
4.1.4.2 Grade 2—Substrate material is a particle or mineral
Current edition approved Aug. 15, 1994. Published October 1994. Originally
3 3
published as F 826 – 83. Last previous edition F 826 – 93.
board core with a minimum density of 45 lb/ft (722 kg/m ).
Annual Book of ASTM Standards, Vol 01.03.
Annual Book of ASTM Standards, Vol 02.01.
5. Ordering Information
Annual Book of ASTM Standards, Vol 02.02.
Annual Book of ASTM Standards, Vol 15.06. 5.1 Tops are included as part of the orders for items of
Available from the National Electrical Manufacturers Association, 1300 N.
furniture requiring tops. These orders shall include the follow-
17th St., Suite 1847, Rosslyn, VA 22209.
ing information:
Available from the American Institute of Steel Construction, One E. Wacker
5.1.1 Type.
Dr., Suite 3100, Chicago, IL 60601–2001.
Available from the American National Standards Institute, 11 W. 42nd St., 13th
5.1.2 Color or pattern of top covering material, or both.
Floor, New York, NY 10036.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
F 826
NOTE 1—For dimensions, see Table 1.
NOTE 2—Top covering for all type tops shall be high-pressure melamine laminate per ANSI/NEMA LD-3, with a maximum thickness of 1.59 mm
( ⁄16 in.), securely bonded to upper surface of substrate material.
NOTE 3—Material of substrate and edge reinforcements for Type I, II, and IV Grade 1 tops shall be a minimum of 16 USSG (1.52-mm or 0.0598-in.)
steel per Specification A 366/A 366M.
NOTE 4—Material of substrate for Type III tops shall be mineral board or particle board per ANSI A208.1 with a maximum thickness of 25.4 mm (1
in.).
1 1
NOTE 5—Material of substrate for Type IV Grade 2 tops shall be 13-mm ( ⁄2-in.) thick particle board per ANSI A208.1 or 13- mm ( ⁄2-in.) thick mineral
board.
NOTE 6—For Type I, II, and IV Grade 1 tops, a stiffener shall be applied to any area of the steel substrate having an unsupported width greater than
89 mm (greater than 3 ⁄2 in.), see Fig. 3. Stiffener shall be 18 USSG (1.21 mm or 0.0478 in.) per Specification A 366/A 366M.
NOTE 7—Edge binder for Type I top shall be of Type 6063-T1 anodized aluminum extrusion per Specification B 221 and installed flush with upper
surface of finished top.
NOTE 8—The combination edge binder and lee rail for Type II top shall be of Type 6063-T1 anodized aluminum extrusion per Specification B 221 and
installed so it projects above the upper surface of top a maximum of 9.53 mm ( ⁄8 in.) to act as a lee rail.
NOTE 9—For Type III tops, a self edge of the same material as the melamine top covering shall be securely bound to the top edge. See 6.8.2 for other
details.
NOTE 10—For Type III top, a lee rail of polished and lacquered brass per Specification B 16/B 16M shall be applied to upper surface of finished top
after application of melamine covering and shall project above the upper surface of the top a maximum of 1.35 mm ( ⁄4 in.).
NOTE 11—Type IV top is an inserted panel, and the edge binder is an integral part of the supporting furniture unit.
NOTE 12—The rear molding for tops of Type I, II, and IV Grades 1 and 2 shall be an anodized aluminum extruded bar per Specification B 221 attached
to top with No. 6 oval head stainless steel machine screws.
NOTE 13—The rear molding for Type III top shall be of polished and lacquered brass per Specification B 16/B 16M attached to top with No. 6 oval
head brass machine screws.
NOTE 14—Type III and Type IV Grade 2 tops shall have a backing sheet securely bonded to underside of particle board substrate. Backing sheet shall
be a resinous similar to top covering.
NOTE 15—Type IV Grade 1 and 2 tops shall be retained in case with No. 8 hex head jack screws and lock nuts spaced 203.2 mm (8 in.) on centers.
NOTE 16—Completed top shall be securely attached to the supporting furniture unit below.
FIG. 1 Furniture Tops Types I and II
5.1.3 If Type III top is ordered, whether lee rail is required. 6.2 Sheet Metal, shall be cold-rolled steel, commercial
quality, furniture grade in accordance with Specification A 366/
6. Materials and Manufacture
A 366M.
6.1 For typical design, see Fig. 1 and Fig. 2. 6.3 Joining:
F 826
NOTE 1—For dimensions, see Table 2.
NOTE 2—See Notes 2 through 16 under Fig. 1.
FIG. 2 Furniture Tops Types III and IV
TABLE 1 Type I and II Top Dimensions TABLE 2 Type III and Type IV Top Dimensions
Dimension Tolerances, + or − Dimension Tolerances + or −
Designation Designation
in. mm. in. mm. in. mm. in. mm
...