ASTM C686-90(1995)e1

NOTICE: This standard has either been superseded and replaced by a new version or discontinued.
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e1
Designation: C 686 – 90 (Reapproved 1995)
Standard Test Method for
Parting Strength of Mineral Fiber Batt- and Blanket-Type
Insulation
This standard is issued under the fixed designation C 686; 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.
e NOTE—Safety caveat and Keywords were added in March 1995.
1. Scope having a moving head speed of 12 in. (305 mm)/min or
equivalent (see Fig. 1).
1.1 This test method covers evaluation of strength in tension
4.2 Post-Type Grips with 1-in. (25.4-mm) diameter rods
on mineral fiber batt- and blanket-type insulation products. It is
(see Fig. 2).
useful for determining the comparative tensile properties of
4.3 Die for cutting specimens (see Fig. 3). The O-ring
these products, specimens of which cannot be held by the more
specimen dimensions are 3 by 4.75 in. (76 by 120.6 mm) in
conventional clamp-type grips. This is a quality control
outside diameter, and 1 by 2.75 in. (25 by 69.8 mm) in inside
method, and the results should not be used for design purposes.
diameter (see Fig. 4).
It is not normally used for board-type products.
4.4 Balance to weigh to an accuracy of 0.01 g.
1.2 This standard does not purport to address all of the
safety concerns, if any, associated with its use. It is the
5. Test Specimen
responsibility of the user of this standard to establish appro-
5.1 The test specimen shall consist of the entire O-ring cut
priate safety and health practices and determine the applica-
from the full thickness of the product to be tested.
bility of regulatory limitations prior to use.
5.2 Specimens shall not be cut from a product that varies in
2. Referenced Documents thickness 65 % from normal when tested in accordance with
Test Method C 167.
2.1 ASTM Standards:
5.3 No specimen shall be tested that exhibits any obvious
C 167 Test Methods for Thickness and Density of Blanket
damage in the insulation or that shows delamination within the
or Batt Thermal Insulations
insulation thickness.
E 171 Specification for Standard Atmospheres for Condi-
tioning and Testing Materials
6. Conditioning
E 691 Practice for Conducting an Interlaboratory Study to
4 6.1 Condition the specimens for1hina room maintained at
Determine the Precision of a Test Method
atmospheric conditions of 73.4 6 1.8°F (23 6 1°C) and 50 6
3. Significance and Use 2 % relative humidity in accordance with Specification E 171.
3.1 Tensile strength is a fundamental property associated
7. Procedure
with mineral fiber manufacture since it is influenced by the
7.1 Weigh each specimen to the nearest 0.01 g and record
type of fiber, the deposition of fiber, the type and the amount of
the weight.
bonding agent, and the method of curing the resin to form a
7.2 Attach the post-type grips to the tension test unit and
bonded insulation product. The test is an indication of product
align the grips in the vertical plane.
integrity and the ability of the product to be successfully
7.3 Adjust the speed of the moving head to 12 in. (305
handled and applied in the field.
mm)/min.
4. Apparatus 7.4 Set the stops of the moving head until the grips are
approximately ⁄4 in. (6.3 mm) apart in the starting position.
4.1 Constant Rate of Traverse Tension Test Unit of 50-lbf
7.5 Place the specimen on the post-type grip (higher density
(223-N) capacity calibrated in increments of 0.1 lbf (0.4 N) and
side first if it is evident that such exists) so that both posts are
within the oblong hole of the specimen. The high density side
This test method is under the jurisdiction of ASTM Committee C-16 on
of the specimen shall be in contact with the post shield.
Thermal Insulation and is the direct responsibility of Subcommittee C16.32 on
Mechanical Properties. 7.
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