ASTM E1264-98

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Designation: E 1264 – 98
Standard Classification for
Acoustical Ceiling Products
This standard is issued under the fixed designation E 1264; 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.
This standard has been approved for use by agencies of the Department of Defense.
1. Scope tion of Ceiling Systems
E 1414 Test Method for Airborne Sound Attenuation Be-
1.1 This classification covers ceiling products that provide
2,4
tween Rooms Sharing a Common Ceiling Plenum
acoustical performance and interior finish in buildings. Prod-
E 1477 Test Method for Luminous Reflectance Factor of
ucts used in performance spaces and other special applications
Acoustical Materials by Use of Integrating-Sphere Reflec-
may require more detailed specification than provided by this
tometers
classification.
1.2 This classification classifies acoustical ceilings by type,
3. Terminology
pattern, and certain ratings for acoustical performance, light
3.1 Definitions—For definitions of terms used in this clas-
reflectance, and fire safety. It does not cover the aspects of
sification, see Terminology C 634.
acoustical ceilings when used as a component of a system or
3.2 Definitions of Terms Specific to This Standard:
assembly tested for fire endurance or floor/ceiling sound
3.2.1 acoustical panel—a form of a prefabricated sound
transmission.
absorbing ceiling element used with exposed suspension sys-
1.3 This classification does not include physical properties,
tems.
such as structural hardness, friability, sag, linear expansion and
3.2.2 acoustical tile—a form of a prefabricated sound ab-
contraction, and transverse strength, which may affect the
sorbing ceiling element used with concealed or semi-exposed
handling, installation, and use of acoustical ceiling products
suspension systems, stapling, or adhesive bonding.
(see Test Methods C 367).
3.2.3 butt—a joint detail for acoustical tile, butt bevel, or
2. Referenced Documents butt square edge, without kerfing of the edges, intended for
adhesive bonding to solid backing.
2.1 ASTM Standards:
3.2.4 edge and joint detail—various edge and joint details
C 367 TestMethodsforStrengthPropertiesofPrefabricated
2 are available in accordance with Table 1 and Fig. 1 for
Architectural Acoustical Tile or Lay-In Ceiling Panels
acoustical ceiling products.
C 423 Test Method for Sound Absorption and Sound Ab-
2 3.2.5 excelsior—long, thin wood shavings.
sorption Coefficients by the Reverberation Room Method
3.2.6 fissured pattern—a surface with irregular depressions
C 634 Terminology Relating to Environmental Acoustics
of varying lengths, widths, and depths extending below the
E 84 Test Method for Surface Burning Characteristics of
basic product face.
Building Materials
2 3.2.7 flush reveal edge—acoustical lay-in panels are in-
E 413 Classification for Rating Sound Insulation
tended for use in direct hung exposed suspension systems with
E 795 Practices for Mounting Test Specimens During
2 a narrow exposed edge that is flush with the panel face.
Sound Absorption Tests
3.2.8 glass fiber base—ceilings composed principally of
E 1110 Classification for Determination of Articulation
glass in fiber form with appropriate binders.
Class
3.2.9 kerfed and rabbeted—joint detail for acoustical tile.
E 1111 Test Method for Measuring the Interzone Attenua-
Tile with kerfed and rabbeted edges on all four sides, with or
without beveled edges, are intended for concealed suspension
1 system or adhesive bonding.
This classification is under the jurisdiction of ASTM Committee E-33 on
EnvironmentalAcousticsandisthedirectresponsibilityofSubcommitteeE33.04on
Application of Acoustical Materials and Systems.
Current edition approved November 10, 1998. Published March 1999. Originally
published as E 1264 – 88. Last previous edition E 1264 – 96. Test Method E 1414 is an adaptation of the AMA-1-II-1967 Test Method for
Annual Book of ASTM Standards, Vol 04.06. Ceiling Sound Transmission Test by Two-Room Method.
3 5
Annual Book of ASTM Standards, Vol 04.07. Annual Book of ASTM Standards, Vol 06.01.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
E 1264
TABLE 1 Edge and Joint Detail, Types I, II, III, IV, VIII, IX, X, XI,
3.2.13 reveal edge—acoustical lay-in panels with step-
and XII
down edge are intended for use in direct hung exposed
Acoustical Unit Edge Detail Joint Detail
suspension systems.
Tile Beveled Kerfed and Rabbeted or Tongue
3.2.14 square edge—acoustical lay-in panels with square
and Groove or Butt
edges are intended for use in direct hung exposed suspension
Square Kerfed and Rabbeted or Tongue
systems.
and Groove or Butt
Beveled Long Edges, Kerfed and Rabbeted Long
3.2.15 Discussion—Reveal, flush reveal, and square edged
Square Edge Trimmed on Edges Only, Ends Trimmed.
panels are laid in place and can easily be pushed upward for
Ends (For Semi-concealed System)
removal or access to the plenum above.
Panels Square
3.2.16 textured pattern—granular or raised (fine, coarse, or
Reveal
ablend),feltedormattedsurfaceasanintegralpartofthebasic
Flush Reveal
product or superimposed on the product surface.
Narrow Reveal
Narrow Flush Reveal
3.2.17 tongue and groove—joint detail for acoustical tile.
Metal Pan Square Tile with tongue and groove edges are intended for stapling,
Reveal
concealed suspension system, or adhesive bonding.
Flush Reveal
Narrow Reveal
4. Significance and Use
Narrow Flush Reveal
4.1 This classification is used to classify and aid in the
Metal Strip Varies with Manufacturer
selection of acoustical ceiling products.
5. Basis of Classification
5.1 Acoustical ceiling products described using this classi-
fication may be of one or more of the following types, forms,
patterns, acoustical ratings, light reflectance values, and fire
classes, as specified.
5.2 Ceiling Types:
5.2.1 Type I—Cellulose base with painted finish.
5.2.2 Type II—Cellulose base with membrane-faced over-
lay.
5.2.3 Type III—Mineral base with painted finish.
5.2.3.1 Form 1—Nodular.
5.2.3.2 Form 2—Water felted.
5.2.3.3 Form 3—Dry felted.
5.2.3.4 Form 4—Cast or molded.
5.2.4 Type IV—Mineral base with membrane-faced overlay.
5.2.4.1 Form 1—Nodular.
5.2.4.2 Form 2—Water felted.
5.2.4.3 Form 3—Dry felted.
5.2.4.4 Form 4—Cast or molded.
5.2.5 Type V—Perforated steel facing (pan) with mineral or
glass fiber base backing.
5.2.6 Type VI—Perforated stainless steel facing (pan) with
mineral or glass fiber base backing.
5.2.7 Type VII—Perforated aluminum facing (pan) with
FIG. 1 Edge and Joint Details
mineral or glass fiber base backing.
5.2.8 Type VIII—Cellulose base with scrubbable pigmented
3.2.10 kerfed and rabbeted long edges, ends trimmed— or clear finish.
acoustical tile, 2 ft or longer, is intended for installation in 5.2.9 Type IX—Mineral base with scrubbable pigmented or
semi-exposed, or semi-exposed direct hung suspension sys- clear finish.
tems. 5.2.9.1 Form 1—Nodular.
3.2.11 metal facings (pans)—metal facing (pan) ceiling 5.2.9.2 Form 2—Water felted.
systems with mineral or glass fiber base backings are intended
5.2.9.3 Form 3—Dry felted.
for use where sound absorption is needed and where durable 5.2.9.4 Form 4—Cast or molded.
and easily maintainable surfaces are a necessity. 5.2.10 Type X—Mineral base with plastic or aluminum
3.2.12 mineral base—ceilings composed principally of membrane-faced overlay, or both.
mineral materials such as fibers manufactured from rock or 5.2.11 Type XI—Mineral base with fabric-faced overlay.
slag, with or without binders. 5.2.11.1 Form 1—Nodular.
E 1264
lighting fixtures can impair theAC rating, depending upon the area of the
5.2.11.2 Form 2—Water felted.
hard surface and its location relevant to occupants in the space.)
5.2.11.3 Form 3—Dry felted.
5.2.11.4 Form 4—Cast or molded.
7.1.3 Ceiling Attenuation Class (CAC)—An acoustical ceil-
5.2.12 Type XII—Glass fiber base with membrane-faced ing may meet a CAC rating, derived in accordance with Test
overlay.
Method E 1414 and
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