UL PRODUCT CATEGORY

[Building Materials] (Surface-burning Characteristics) Acoustical Materials, BIYR


See General Information for Surface-burning Characteristics

703.4.1803.1803.9803.9.1803.9.1803.9.21207

GENERAL

This category covers acoustical materials certified as to the surface-burning characteristics shown in the individual certifications.

Acoustical materials to be eligible for certification must have a flame-spread rating of 200 or less on both faces.

Depending on the type of field mounting required by the acoustical product, either wood furring strips or metal splines are intended to be used to support acoustical materials whose maximum dimension is less than 20 in. (508 mm).

Some acoustical materials are provided with facings that may affect the contribution of combustibles under fire conditions. This effect is determined by testing the sample with a longitudinal butt joint, constructed by slitting the facing or by using a factory or field joint (if applicable).

In some cases, products are certified under the designation "FHC 25/50." This denotes that these products have flame-spread values of 25 or less and smoke-developed values of 50 or less.

The sound absorption average (SAA) and noise reduction coefficient (NRC) are determined by ASTM C423, "Standard Test Method for Sound Absorption and Sound Absorption Coefficients by the Reverberation Room Method." The SAA and NRC are published as a single number, such as 0.60.

The ceiling attenuation class (CAC) is determined by ANSI/ASTM E1414, "Standard Test Method for Airborne Sound Attenuation Between Rooms Sharing a Common Ceiling Plenum." The CAC is published as a single number such as 32.

The articulation class (AC) is determined by ASTM E1111, "Standard Test Method for Measuring the Interzone Attenuation of Open Office Components." The AC is published as a single number such as 170.

The certifications are confined to the materials themselves and to the methods of application indicated and do not pertain to the structures in which the materials may be installed.

Products identified as finished with a coating have not been investigated as to increase of surface burning due to repainting after installation.

Authorities Having Jurisdiction should be consulted before installation.

PRODUCT IDENTITY

The following product identity appears on the product:

    Acoustical Material

RELATED PRODUCTS

For the fire-resistance rating of these products, see Acoustical Materials (BYIT).

ADDITIONAL INFORMATION

For additional information, see Surface-burning Characteristics (BIKT) and Building Materials (AABM).

REQUIREMENTS

The basic standard used to investigate products in this category is ANSI/UL 723, "Test for Surface Burning Characteristics of Building Materials."

In addition to the surface-burning characteristics, where indicated in the individual certifications, acoustical materials have also been certified to ANSI/ASTM E136, "Standard Test Method for Behavior of Materials in a Vertical Tube Furnace at 750°C." Also, where indicated in the individual certifications, acoustical materials have been certified as to their sound-absorption and sound-transmission properties to ASTM C423, "Standard Test Method for Sound Absorption and Sound Absorption Coefficients by the Reverberation Room Method," ASTM E1111, "Standard Test Method for Measuring the Interzone Attenuation of Ceiling Systems," and ANSI/ASTM E1414, "Standard Test Method for Airborne Sound Attenuation Between Rooms Sharing a Common Ceiling Plenum."

UL MARK

The Certification Mark of UL on the product or package of products is the only method provided by UL to identify products manufactured under its Certification and Follow-Up Service. The Certification Mark for these products includes the UL symbol, the words "CERTIFIED" and "SAFETY," the geographic identifier(s), and a file number.

Additional Certification Markings

Products covered under this category are additionally marked with the following information:

AS TO SURFACE-BURNING CHARACTERISTICS
+
+ Flame-spread and smoke-developed values or the designation "FHC 25/50" applicable to the product


These products may additionally be marked with one or more of the following statements:

ALSO CERTIFIED TO ANSI/ASTM E136
STANDARD TEST METHOD FOR BEHAVIOR OF
MATERIALS IN A VERTICAL TUBE FURNACE AT 750°C

and/or

ALSO CERTIFIED FOR ACOUSTICAL PROPERTIES

NOISE REDUCTION COEFFICIENT ***
ASTM C423

CEILING ATTENUATION CLASS ***
ANSI/ASTM E1414

ARTICULATION CLASS ***
ASTM E1111

Where *** is the performance value

Alternate UL Mark

The Classification Mark of UL on the product or package of products is the only method provided by UL to identify products manufactured under its Classification and Follow-Up Service. The Classification Mark for these products includes the UL symbol, the word "CLASSIFIED" above the UL symbol (as illustrated in the Introduction of this Directory), and the following additional information:

ACOUSTICAL MATERIAL
SURFACE BURNING CHARACTERISTICS
+
Issue No.

+ Flame spread and smoke developed values or the designation "FHC 25/50" applicable to the product

The Classification Mark may also include the following statements:

ALSO CLASSIFIED IN ACCORDANCE WITH ANSI/ASTM E136
STANDARD TEST METHOD FOR BEHAVIOR OF
MATERIALS IN A VERTICAL TUBE FURNACE AT 750°C

and/or

ALSO CLASSIFIED FOR ACOUSTICAL PROPERTIES

NOISE REDUCTION COEFFICIENT ***
IN ACCORDANCE WITH ASTM C423

CEILING ATTENUATION CLASS ***
IN ACCORDANCE WITH ANSI/ASTM E1414

ARTICULATION CLASS ***
IN ACCORDANCE WITH ASTM E1111

Where *** is the performance value

* * * * * * * * * * * * * * * * * * * * * * * * *

UL, in performing its functions in accordance with its objectives, does not assume or undertake to discharge any responsibility of the manufacturer or any other party. UL shall not incur any obligation or liability for any loss, expense or damages, including incidental or consequential damages, arising out of or in connection with the use, interpretation of, or reliance upon this Guide Information.

Last Updated on 2017-02-24
BIYR.GuideInfo BIYR Active 20170224 20170302

The appearance of a company's name or product in this database does not in itself assure that products so identified have been manufactured under UL's Follow-Up Service. Only those products bearing the UL Mark should be considered to be Certified and covered under UL's Follow-Up Service. Always look for the Mark on the product.

UL permits the reproduction of the material contained in the Online Certification Directory subject to the following conditions: 1. The Guide Information, Assemblies, Constructions, Designs, Systems, and/or Certifications (files) must be presented in their entirety and in a non-misleading manner, without any manipulation of the data (or drawings). 2. The statement "Reprinted from the Online Certifications Directory with permission from UL" must appear adjacent to the extracted material. In addition, the reprinted material must include a copyright notice in the following format: "© 2019 UL LLC".