ASTM F826-22
(Specification)Standard Specification for Tops, Furniture, Marine, Steel
Standard Specification for Tops, Furniture, Marine, Steel
ABSTRACT
This specification covers the construction of steel furniture tops for use where invoked by other marine furniture specifications. Tops shall be of the following types: type I - top on which the edge binder is flush with the top and the substrate material is steel; type II - top on which the edge binder projects above the upper surface of the top to act as a lee rail and the substrate material is steel; type III - top on which a lee rail is applied to the upper surface of the finished top, the top has a self edge securely bonded to the finished top, and the substrate material is a particle or mineral board core; and type IV - top is an insert panel and the edge binder is an integral part of the supporting furniture unit. Tops shall be of the following grades: grade 1 - substrate material and edge reinforcements for types I, II, and IV, and grade 2 - substrate material is a particle or mineral board core with a minimum density of 45 lb/ft3.
SCOPE
1.1 This specification covers the construction of steel furniture tops for use where invoked by other marine furniture specifications.
1.2 This specification applies to tops for furniture case goods only such as chests of drawers, log desks with cabinets, and so forth.
1.3 The values stated in inch-pound units are to be regarded as standard. The values given in parentheses are mathematical conversions to SI units that are provided for information only and are not considered standard.
1.4 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.
General Information
- Status
- Published
- Publication Date
- 31-Mar-2022
- Technical Committee
- F25 - Ships and Marine Technology
- Drafting Committee
- F25.03 - Outfitting and Deck Machinery
Relations
- Effective Date
- 01-Nov-2023
- Effective Date
- 01-Nov-2023
- Effective Date
- 01-Oct-2019
- Effective Date
- 01-Sep-2018
- Effective Date
- 01-Sep-2016
- Effective Date
- 01-May-2015
- Effective Date
- 01-May-2015
- Effective Date
- 01-Oct-2013
- Effective Date
- 01-Apr-2013
- Effective Date
- 15-Nov-2012
- Effective Date
- 01-Nov-2012
- Effective Date
- 01-Jul-2012
- Effective Date
- 01-May-2012
- Effective Date
- 01-Mar-2012
- Effective Date
- 15-Jan-2012
Overview
ASTM F826-22: Standard Specification for Tops, Furniture, Marine, Steel defines requirements for the construction of steel furniture tops used in marine environments. Primarily invoked by other marine furniture specifications, this standard focuses on steel tops for case goods such as chests of drawers, desks, and other cabinet-based furniture. It ensures quality, durability, and safety for furniture subjected to the demands of marine applications, with attention to substrate materials, finishing, and performance requirements.
Key Topics
Types and Grades of Tops
- Type I: Steel substrate with flush edge binder
- Type II: Steel substrate with raised edge binder acting as a lee rail
- Type III: Particle or mineral board core with bonded self edge and applied lee rail
- Type IV: Insert panel with integral edge binder as part of the furniture unit
- Grade 1: Steel substrate and edge reinforcements
- Grade 2: Particle or mineral board core with required density
Material Specifications
- Cold-rolled, commercial-quality steel for strength and corrosion resistance
- High-pressure melamine laminate for top coverings as per ANSI/NEMA LD-3
- Aluminum and brass components for edge binders, lee rails, and rear moldings
Performance Requirements
- Tops must support uniformly distributed loads of 400 lb (181 kg) without permanent deformation
- Adherence to dimensional tolerances, ensuring compatibility with supported furniture
Workmanship and Appearance
- Removal of sharp edges and burrs for safety
- All exposed surfaces must be finished to resist corrosion, typically with a baked-on enamel finish
- Secure bonding of laminate with no loose or uneven edges
- Inspection and certification as part of the overall furniture item
Applications
Marine Furniture Manufacturing
- Specified for furniture in shipboard environments where durability and corrosion resistance are essential
Ship and Offshore Installations
- Use in case goods such as lockers, drawer units, writing desks, and cabinetry where stability and load-bearing capacity are critical
Safety and Design Compliance
- Ensures furniture tops prevent item slippage (lee rails), are structurally sound, and maintain high-quality surface finishes required in marine settings
Integration with Other Marine Standards
- Invoked within broader marine outfitting specifications for consistent quality and performance across naval and commercial vessels
Related Standards
- ASTM A1008/A1008M - Specification for cold-rolled steel sheets, a referenced material in F826-22
- ANSI/NEMA LD-3 - Standard for high-pressure decorative laminates used for furniture coverings
- ANSI A208.1 - Standard for mat-formed particleboard, used for certain substrate types
- ASTM B221 - Specification for aluminum extruded components such as edge binders and moldings
- ASTM B16/B16M - Specification for brass components, covering lee rails and moldings
These related standards ensure materials and components in marine steel furniture tops meet rigorous quality and safety criteria, supporting long service life and compliance with marine outfitting regulations.
Keywords: ASTM F826-22, steel furniture tops, marine furniture, ship case goods, marine standards, corrosion resistance, high-pressure laminate, lee rail, furniture specification, precision manufacturing
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Frequently Asked Questions
ASTM F826-22 is a technical specification published by ASTM International. Its full title is "Standard Specification for Tops, Furniture, Marine, Steel". This standard covers: ABSTRACT This specification covers the construction of steel furniture tops for use where invoked by other marine furniture specifications. Tops shall be of the following types: type I - top on which the edge binder is flush with the top and the substrate material is steel; type II - top on which the edge binder projects above the upper surface of the top to act as a lee rail and the substrate material is steel; type III - top on which a lee rail is applied to the upper surface of the finished top, the top has a self edge securely bonded to the finished top, and the substrate material is a particle or mineral board core; and type IV - top is an insert panel and the edge binder is an integral part of the supporting furniture unit. Tops shall be of the following grades: grade 1 - substrate material and edge reinforcements for types I, II, and IV, and grade 2 - substrate material is a particle or mineral board core with a minimum density of 45 lb/ft3. SCOPE 1.1 This specification covers the construction of steel furniture tops for use where invoked by other marine furniture specifications. 1.2 This specification applies to tops for furniture case goods only such as chests of drawers, log desks with cabinets, and so forth. 1.3 The values stated in inch-pound units are to be regarded as standard. The values given in parentheses are mathematical conversions to SI units that are provided for information only and are not considered standard. 1.4 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.
ABSTRACT This specification covers the construction of steel furniture tops for use where invoked by other marine furniture specifications. Tops shall be of the following types: type I - top on which the edge binder is flush with the top and the substrate material is steel; type II - top on which the edge binder projects above the upper surface of the top to act as a lee rail and the substrate material is steel; type III - top on which a lee rail is applied to the upper surface of the finished top, the top has a self edge securely bonded to the finished top, and the substrate material is a particle or mineral board core; and type IV - top is an insert panel and the edge binder is an integral part of the supporting furniture unit. Tops shall be of the following grades: grade 1 - substrate material and edge reinforcements for types I, II, and IV, and grade 2 - substrate material is a particle or mineral board core with a minimum density of 45 lb/ft3. SCOPE 1.1 This specification covers the construction of steel furniture tops for use where invoked by other marine furniture specifications. 1.2 This specification applies to tops for furniture case goods only such as chests of drawers, log desks with cabinets, and so forth. 1.3 The values stated in inch-pound units are to be regarded as standard. The values given in parentheses are mathematical conversions to SI units that are provided for information only and are not considered standard. 1.4 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.
ASTM F826-22 is classified under the following ICS (International Classification for Standards) categories: 47.020.80 - Accommodation spaces. The ICS classification helps identify the subject area and facilitates finding related standards.
ASTM F826-22 has the following relationships with other standards: It is inter standard links to ASTM A1008/A1008M-23, ASTM A1008/A1008M-23e1, ASTM B16/B16M-19, ASTM A1008/A1008M-18, ASTM A1008/A1008M-16, ASTM A1008/A1008M-15, ASTM B16/B16M-10(2015), ASTM A1008/A1008M-13, ASTM B221-13, ASTM B221-12a, ASTM A1008/A1008M-12a, ASTM D907-12a, ASTM D907-12, ASTM A1008/A1008M-12, ASTM B221-12. Understanding these relationships helps ensure you are using the most current and applicable version of the standard.
ASTM F826-22 is available in PDF format for immediate download after purchase. The document can be added to your cart and obtained through the secure checkout process. Digital delivery ensures instant access to the complete standard document.
Standards Content (Sample)
This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the
Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.
Designation: F826 −22 An American National Standard
Standard Specification for
Tops, Furniture, Marine, Steel
ThisstandardisissuedunderthefixeddesignationF826;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginal
adoption or, in the case of revision, the year of last revision.Anumber in parentheses indicates the year of last reapproval.Asuperscript
epsilon (´) indicates an editorial change since the last revision or reapproval.
1. Scope 2.3 AISC Manual:
AISCWireandSheetMetalGauges EquivalentThicknessin
1.1 This specification covers the construction of steel furni-
Decimals of an Inch, U.S. Standard Gauge (USSG) for
ture tops for use where invoked by other marine furniture
Uncoated Hot and Cold Rolled Sheets
specifications.
2.4 ANSI Standard:
1.2 This specification applies to tops for furniture case
A208.1 American National Standard for Mat Formed Par-
goods only such as chests of drawers, log desks with cabinets,
ticle Board
and so forth.
1.3 The values stated in inch-pound units are to be regarded
3. Terminology
as standard. The values given in parentheses are mathematical
3.1 Definitions of Terms Specific to This Standard:
conversions to SI units that are provided for information only
3.1.1 case goods—furniture items having drawers, a cabinet
and are not considered standard.
with doors, or both.
1.4 This international standard was developed in accor-
3.1.2 edge binder—the strips of metal or other material
dance with internationally recognized principles on standard-
applied to the edges of a top.
ization established in the Decision on Principles for the
3.1.3 lee rails—extensions above the surface of furniture
Development of International Standards, Guides and Recom-
tops that retain items placed on top.
mendations issued by the World Trade Organization Technical
Barriers to Trade (TBT) Committee. 3.1.4 substrate material—the core, or structural material of
the top, to which the melamine laminate is directly bonded.
2. Referenced Documents
3.1.5 tops—the horizontal surface that makes up the upper
2.1 ASTM Standards: exposed surface of furniture items.
A1008/A1008M Specification for Steel, Sheet, Cold-Rolled,
Carbon, Structural, High-Strength Low-Alloy, High- 4. Classification
Strength Low-Alloy with Improved Formability, Required
4.1 Tops shall be of the following types as required by the
Hardness, Solution Hardened, and Bake Hardenable
specifications for the item of furniture and as indicated in the
B16/B16M Specification for Free-Cutting Brass Rod, Bar
orderingdocuments.SeeFig.1,Fig.2,Table1,andTable2for
and Shapes for Use in Screw Machines
details.
B221 Specification forAluminum andAluminum-Alloy Ex-
4.1.1 Type I—Top on which the edge binder is flush with the
truded Bars, Rods, Wire, Profiles, and Tubes
top and the substrate material is steel.
D907 Terminology of Adhesives
4.1.2 Type II—Top on which the edge binder projects above
2.2 NEMA Specification:
the upper surface of the top to act as a lee rail and the substrate
ANSI/NEMA LD-3 High Pressure Decorative Laminates
material is steel.
4.1.3 Type III—Top on which a lee rail is applied to the
upper surface of the finished top, the top has a self edge
This specification is under the jurisdiction of ASTM Committee F25 on Ships
securely bonded to the finished top, and the substrate material
and Marine Technology and is the direct responsibility of Subcommittee F25.03 on
is a particle or mineral board core.
Outfitting and Deck Machinery.
4.1.4 Type IV—Top is an insert panel and the edge binder is
Current edition approved April 1, 2022. Published April 2022. Originally
approved in 1983. Last previous edition approved in 2017 as F826 – 94 (2017). an integral part of the supporting furniture unit.
DOI: 10.1520/F0826-22.
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
Standards volume information, refer to the standard’s Document Summary page on Available from American Institute of Steel Construction (AISC), 130 E.
the ASTM website. Randolph St., Suite 2000, Chicago, IL 60601-6219, http://www.aisc.org.
3 5
Available from National Electrical Manufacturers Association (NEMA), 1300 Available from American National Standards Institute (ANSI), 25 W. 43rd St.,
N. 17th St., Suite 900, Arlington, VA 22209, http://www.nema.org. 4th Floor, New York, NY 10036, http://www.ansi.org.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
F826 − 22
NOTE 1—For dimensions, see Table 1.
NOTE 2—Top covering for all type tops shall be high-pressure melamine laminate in accordance withANSI/NEMALD-3, with a maximum thickness
of ⁄16 in. (1.59 mm), 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 0.053 in. (1.34 mm) steel in
accordance with Specification A1008/A1008M.
NOTE 4—Material of substrate for Type III tops shall be mineral board or particle board in accordance withANSIA208.1 with a maximum thickness
of 25.4 mm (1 in.).
1 1
NOTE5—MaterialofsubstrateforTypeIVGrade2topsshallbe ⁄2-in.(13-mm)thickparticleboardinaccordancewithANSIA208.1or ⁄2-in.(13-mm)
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
3 ⁄2 in. (89 mm), see Fig. 3. Stiffener shall be 0.042 in. (1.06 mm) in accordance with Specification A1008/A1008M.
NOTE 7—Edge binder for Type I top shall be of Type 6063-T1 anodized aluminum extrusion in accordance with Specification B221 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 in accordance with
Specification B221 and installed so it projects above the upper surface of top a maximum of ⁄8 in. (9.53 mm) 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 in accordance with Specification B16/B16M 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 ⁄4 in. (1.35 mm).
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 ofType I, II, and IVGrades 1 and 2 shall be an anodized aluminum extruded bar in accordance with Specification
B221 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 in accordance with Specification B16/B16M 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 8 in. (203.2 mm) on centers.
NOTE 16—Completed top shall be securely attached to the supporting furniture unit below.
FIG. 1 Furniture Tops Types I and II
4.1.4.1 Grade 1—Substrate material and edge reinforce- 5. Ordering Information
ments for Types I, II, and IV Grade 1 tops shall be a minimum
5.1 Tops are included as part of the orders for items of
of 0.053 in. (1.34 mm) steel in accordance with Specification
furniture requiring tops. These orders shall include the follow-
A1008/A1008M.
ing information:
4.1.4.2 Grade 2—Substrate material is a particle or mineral
3 3
5.1.1 Type.
board core with a minimum density of 45 lb/ft (722 kg/m ).
F826 − 22
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.
...
This document is not an ASTM standard and is intended only to provide the user of an ASTM standard an indication of what changes have been made to the previous version. Because
it may not be technically possible to adequately depict all changes accurately, ASTM recommends that users consult prior editions as appropriate. In all cases only the current version
of the standard as published by ASTM is to be considered the official document.
Designation: F826 − 94 (Reapproved 2017) F826 − 22 An American National Standard
Standard Specification for
Tops, Furniture, Marine, Steel
This standard is issued under the fixed designation F826; 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 (´) indicates an editorial change since the last revision or reapproval.
1. Scope
1.1 This specification covers the construction of steel furniture tops for use where invoked by other marine furniture specifications.
1.2 This specification applies to tops for furniture case goods only such as chests of drawers, log desks with cabinets, and so forth.
1.3 The values stated in inch-pound units are to be regarded as standard. The values given in parentheses are mathematical
conversions to SI units that are provided for information only and are not considered standard.
1.4 This international standard was developed in accordance with internationally recognized principles on standardization
established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued
by the World Trade Organization Technical Barriers to Trade (TBT) Committee.
2. Referenced Documents
2.1 ASTM Standards:
A366/A366MA1008/A1008M Specification for Commercial Steel (CS) Sheet, Carbon, (0.15 Maximum Percent) Cold-
RolledSteel, Sheet, Cold-Rolled, Carbon, Structural, High-Strength Low-Alloy, High-Strength Low-Alloy with Improved
Formability, Required Hardness, Solution Hardened, and Bake Hardenable (Withdrawn 2000)
B16/B16M Specification for Free-Cutting Brass Rod, Bar and Shapes for Use in Screw Machines
B221 Specification for Aluminum and Aluminum-Alloy Extruded Bars, Rods, Wire, Profiles, and Tubes
D907 Terminology of Adhesives
2.2 NEMA Specification:
ANSI/NEMA LD-3 High Pressure Decorative Laminates
2.3 AISC Manual:
AISC Wire and Sheet Metal Gauges Equivalent Thickness in Decimals of an Inch, U.S. Standard Gauge (USSG) for Uncoated
Hot and Cold Rolled Sheets
2.4 ANSI Standard:
A208.1 American National Standard for Mat Formed Particle Board
This specification is under the jurisdiction of ASTM Committee F25 on Ships and Marine Technology and is the direct responsibility of Subcommittee F25.03 on
Outfitting and Deck Machinery.
Current edition approved Jan. 1, 2017April 1, 2022. Published January 2017April 2022. Originally approved in 1983. Last previous edition approved in 20102017 as
F826 – 94 (2017). (2010). DOI: 10.1520/F0826-94R17.10.1520/F0826-22.
For referenced ASTM standards, visit the ASTM website, www.astm.org, or contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM Standards
volume information, refer to the standard’s Document Summary page on the ASTM website.
Available from National Electrical Manufacturers Association (NEMA), 1300 N. 17th St., Suite 900, Arlington, VA 22209, http://www.nema.org.
Available from American Institute of Steel Construction (AISC), 130 E. Randolph St., Suite 2000, Chicago, IL 60601-6219, http://www.aisc.org.
Available from American National Standards Institute (ANSI), 25 W. 43rd St., 4th Floor, New York, NY 10036, http://www.ansi.org.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
F826 − 22
3. Terminology
3.1 Definitions of Terms Specific to This Standard:
3.1.1 case goods—furniture items having drawers, a cabinet with doors, or both.
3.1.2 edge binder—the strips of metal or other material applied to the edges of a top.
3.1.3 lee rails—extensions above the surface of furniture tops that retain items placed on top.
3.1.4 substrate material—the core, or structural material of the top, to which the melamine laminate is directly bonded.
3.1.5 tops—the horizontal surface that makes up the upper exposed surface of furniture items.
4. Classification
4.1 Tops shall be of the following types as required by the specifications for the item of furniture and as indicated in the ordering
documents. See Fig. 1, Fig. 2, Table 1, and Table 2 for details.
4.1.1 Type I—Top on which the edge binder is flush with the top and the substrate material is steel.
4.1.2 Type II—Top on which the edge binder projects above the upper surface of the top to act as a lee rail and the substrate
material is steel.
4.1.3 Type III—Top on which a lee rail is applied to the upper surface of the finished top, the top has a self edge securely bonded
to the finished top, and the substrate material is a particle or mineral board core.
4.1.4 Type IV—Top is an insert panel and the edge binder is an integral part of the supporting furniture unit.
4.1.4.1 Grade 1—Substrate material and edge reinforcements for Types I, II, and IV Grade 1 tops shall be a minimum of 16 USSG
(0.0598-in. or 1.6-mm) 0.053 in. (1.34 mm) steel in accordance with Specification A366/A366MA1008/A1008M.
3 3
4.1.4.2 Grade 2—Substrate material is a particle or mineral board core with a minimum density of 45 lb/ft (722 kg/m ).
5. Ordering Information
5.1 Tops are included as part of the orders for items of furniture requiring tops. These orders shall include the following
information:
5.1.1 Type.
5.1.2 Color or pattern of top covering material, or both.
5.1.3 If Type III top is ordered, whether lee rail is required.
6. Materials and Manufacture
6.1 For typical design, see Fig. 1 and Fig. 2.
6.2 Sheet Metal, shall be cold-rolled steel, commercial quality, furniture grade in accordance with Specification A366/
A366MA1008/A1008M.
F826 − 22
NOTE 1—For dimensions, see Table 1.
NOTE 2—Top covering for all type tops shall be high-pressure melamine laminate in accordance with ANSI/NEMA LD-3, with a maximum thickness
1 1
of ⁄161.59 mm ( in. (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.)
0.053 in. (1.34 mm) steel in accordance with Specification A366/A366MA1008/A1008M.
NOTE 4—Material of substrate for Type III tops shall be mineral board or particle board in accordance with 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 ⁄213-mm (-in. (13-mm) ⁄2-in.) thick particle board in accordance with ANSI A208.1
1 1
or ⁄213- mm (-in. (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.), in. (89 mm), see Fig. 3. Stiffener shall be 18 USSG (1.21 mm or 0.0478 in.) 0.042 in. (1.06 mm) in accordance with
Specification A366/A366MA1008/A1008M.
NOTE 7—Edge binder for Type I top shall be of Type 6063-T1 anodized aluminum extrusion in accordance with Specification B221 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 in accordance with
3 3
Specification B221 and installed so it projects above the upper surface of top a maximum of ⁄89.53 mm ( in. (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 in accordance with Specification B16/B16M 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 ⁄41.35 mm ( in. (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 in accordance with Specification
B221 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 in accordance with Specification B16/B16M 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.) 8 in. (203.2 mm)
on centers.
NOTE 16—Completed top
...
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