Standard Test Method for Air Erosion of Sprayed Fire-Resistive Materials (SFRMs) Applied to Structural Members

SCOPE
1.1 This test method covers a procedure for determining the effect of an air stream upon sprayed fire-resistive materials (SFRMs). These SFRMs include sprayed fibrous and cementitious materials. The test method is applicable only to laboratory procedures.

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Status
Historical
Publication Date
31-Dec-1999
Technical Committee
Drafting Committee
Current Stage
Ref Project

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ASTM E859-93(2000) - Standard Test Method for Air Erosion of Sprayed Fire-Resistive Materials (SFRMs) Applied to Structural Members
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NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.
Contact ASTM International (www.astm.org) for the latest information
An American National Standard
Designation:E859–93 (Reapproved 2000)
Standard Test Method for
Air Erosion of Sprayed Fire-Resistive Materials (SFRMs)
Applied to Structural Members
This standard is issued under the fixed designation E 859; 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 water to form a slurry and is conveyed through a hose to a
nozzle where compressed air is typically used to disperse the
1.1 This test method covers a procedure for determining the
material into a spray pattern and air directed to the substrate
effect of an air stream upon sprayed fire-resistive materials
requiring protection.
(SFRMs). These SFRMs include sprayed fibrous and cemen-
3.2.3 sprayed fibrous material—consisting of one or more
titious materials. The test method is applicable only to labora-
binders,fibers,andaggregates,thematerialisconveyedbylow
tory procedures.
pressure air through a hose to a nozzle where it is mixed with
2. Referenced Documents atomized water and directed to the substrate requiring protec-
tion.
2.1 ASTM Standards:
3.2.4 sprayed fire-resistive materials—materials that are
D 123 Terminology Relating to Textiles
sprayed onto substrates to provide fire-resistive protection of
E 84 Test Method for Surface Burning Characteristics of
the substrates.
Building Materials
E 119 Test Methods for Fire Tests of Building Construction
4. Summary of Test Method
and Materials
4.1 This test method covers a procedure for determining the
E 605 Test Methods for Thickness and Density of Sprayed
effect of an air stream upon SFRM in plenums. In this test
Fire-Resistive Material (SFRM) Applied to Structural
method, the SFRM is subjected to a tangential air stream for a
Members
minimum of 24 h. Collection filters downstream from the
2.2 ASHRAE Handbook, Fundamentals
sample are weighed at frequent intervals to determine the
amount of material removed from the sample.
3. Terminology
5. Significance and Use
3.1 Definitions:
5.1 Itistheintentofthistestmethodtodetermineproperties
3.1.1 denier, n—the number of grams per 9000 m.
of SFRM that may be used to provide an indication of
3.1.2 end (fabric), n—an individual warp yarn (single or
serviceability. Satisfactory performance of SFRM applied to
ply) cord.
structural members and assemblies depends upon its ability to
3.1.3 pick, n—an individual filling yarn.
withstand the various influences that may occur during con-
3.2 Definitions of Terms Specific to This Standard:
struction and during the life of the structure, as well as upon its
3.2.1 air erosion—the action or process of being eroded by
performance under fire conditions.
an air stream.
5.2 Air erosion tests on SFRMs are conducted to evaluate
3.2.2 sprayed cementitious material—consisting of one or
the behavior of the SFRM when subjected to plenum air
more binders, aggregate, and fibers, the material is mixed with
streams during normal service conditions. Such tests evaluate
the resistance to dusting, flaking, spalling, and delamination of
ThismethodisunderthejurisdictionofASTMCommitteeE06onPerformance
the SFRM.
of Buildings and is the direct responsibility of Subcommittee E06.21 on Service-
ability.
6. Apparatus
Current edition approved March 15, 1993. Published May 1993. Originally
6.1 Duct System, made of galvanized steel, horizontally
published as E 859 – 82. Last previous edition E 859 – 82.
2 2 2
Annual Book of ASTM Standards, Vol 07.01.
positioned, with one rectangular opening 0.37 m (4 ft )inthe
Annual Book of ASTM Standards, Vol 04.07.
center of the top of the duct and 50 mm (2 in.) from each
Annual Book of ASTM Standards, Vol 04.11.
5 vertical side.
Available from American Society for Heating, Refrigerating and Air-
Conditioning Engineers, 1791 Tullie Circle NE, Atlanta, GA 30329.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
E859
6.2 Pitot Tube, used in conjunction with a suitable manom- 9. Procedure
eter, as described in ASHRAE Handbook, Fundamentals, under
9.1 Test one specimen to determine thickness and density in
“Velocity Measurement,” to measure air velocities in the duct.
accordance with Test Methods E 605.
6.3 Bl
...

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