ASTM C764 - 25 矿物纤维松散填充隔热材料的标准规范

VIP专免

标准小能手 2026-06-22 12 214.01KB 5 页 22星币

Designation: C764 −25
Standard Speciﬁcation for
Mineral Fiber Loose-Fill Thermal Insulation
1
This standard is issued under the ﬁxed designation C764; 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.
This standard has been approved for use by agencies of the U.S. Department of Defense.
1. Scope
1.1 This speciﬁcation covers the composition and physical
properties of nodulated mineral ﬁber thermal insulation for use
in attics or enclosed spaces in housing and other framed
buildings.
1.2 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.
1.3 This standard does not purport to address all of the
safety concerns, if any, associated with its use. It is the
responsibility of the user of this standard to establish appro-
priate safety, health, and environmental practices and deter-
mine the applicability of regulatory limitations prior to use.
1.4 This international standard was developed in accor-
dance with internationally recognized principles on standard-
ization established in the Decision on Principles for the
Development of International Standards, Guides and Recom-
mendations issued by the World Trade Organization Technical
Barriers to Trade (TBT) Committee.
2. Referenced Documents
2.1 ASTM Standards:
2
B152/B152M Speciﬁcation for Copper Sheet, Strip, Plate,
and Rolled Bar
C168 Terminology Relating to Thermal Insulation
C177 Test Method for Steady-State Heat Flux Measure-
ments and Thermal Transmission Properties by Means of
the Guarded-Hot-Plate Apparatus
C390 Practice for Sampling and Acceptance of Thermal
Insulation Lots
C518 Test Method for Steady-State Thermal Transmission
Properties by Means of the Heat Flow Meter Apparatus
C687 Practice for Determination of Thermal Resistance of
Loose-Fill Building Insulation
C870 Practice for Conditioning of Thermal Insulating Ma-
terials
C1104/C1104M Test Method for Determining the Water
Vapor Sorption of Unfaced Mineral Fiber Insulation
C1304 Test Method for Assessing the Odor Emission of
Thermal Insulation Materials
C1338 Test Method for Determining Fungi Resistance of
Insulation Materials and Facings
C1363 Test Method for Thermal Performance of Building
Materials and Envelope Assemblies by Means of a Hot
Box Apparatus
C1374 Test Method for Determination of Installed Thick-
ness of Pneumatically Applied Loose-Fill Building Insu-
lation
C1574 Guide for Determining Blown Density of Pneumati-
cally Applied Loose-Fill Mineral Fiber Thermal Insulation
C1617 Test Method for Quantitative Accelerated Laboratory
Evaluation of Extraction Solutions Containing Ions
Leached from Thermal Insulation on Aqueous Corrosion
of Carbon Steel
C1630 Guide for Development of Coverage Charts for
Loose-Fill Thermal Building Insulations
C1859 Practice for Determination of Thermal Resistance of
Pneumatically Installed Loose-Fill Building Insulation
(Behind Netting) for Enclosed Applications of the Build-
ing Thermal Envelope
E136 Test Method for Assessing Combustibility of Materials
Using a Vertical Tube Furnace at 750 °C
E970 Test Method for Critical Radiant Flux of Exposed Attic
Floor Insulation Using a Radiant Heat Energy Source
G1 Practice for Preparing, Cleaning, and Evaluating Corro-
sion Test Specimens
3. Terminology
3.1 Deﬁnitions—For deﬁnitions of terms used in this
speciﬁcation, refer to Terminology C168.
3.2 Deﬁnitions of Terms Speciﬁc to This Standard:
3.2.1 settled density—The mass per unit volume of a loose-
ﬁll insulation after which time or forces, or both, have exerted
their effect upon thickness.
1
This speciﬁcation is under the jurisdiction of ASTM Committee C16 on
Thermal Insulation and is the direct responsibility of Subcommittee C16.23 on
Blanket and Loose Fill Insulation.
Current edition approved April 15, 2025. Published April 2025. Originally
approved in 1973. Last previous edition approved in 2019 as C764 – 19. DOI:
10.1520/C0764-25.
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
contact ASTM Customer Service at www.astm.org/contact. For Annual Book of
ASTM Standards volume information, refer to the standard’s Document Summary
page on the ASTM website.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
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.
1

3.2.1.1 Discussion—The settled density is determined using
long term aging studies in attics.
4. Classiﬁcation
4.1 The nodulated mineral ﬁber thermal insulation shall be
of the following types and classes:
4.1.1 Type I—Pneumatic application.
4.1.2 Type II—Poured application.
5. Ordering Information
5.1 Both types of nodulated mineral ﬁber thermal insulation
are intended for use as thermal insulation in open spaces, such
as attics and enclosed spaces, such as walls, in housing and
buildings at ambient temperatures. Type I is used for pneumatic
application (blown or conveyed by an air stream through a hose
and discharged over the area to be insulated). Type II is used
for application by pouring in place.
6. Materials and Manufacture
6.1 Basic Material—The basic material shall be ﬁbers made
from mineral substances such as rock, slag, or glass processed
from the molten state into an incombustible ﬁbrous form.
6.2 Manufacture—The ﬁbers shall be mechanically pro-
cessed into nodules, and are permitted to be treated to provide
improved processing and handling characteristics suitable for
installation by pouring or pneumatic applications.
7. Physical Properties
7.1 Thermal Characteristics—The standard thermal resis-
tance values normally recommended for open application are
expressed in °F·h·ft
2
/Btu (K·m
2
/W). Typical values are shown
in Table 1.Rvalues others than those listed in Table 1 shall be
as agreed upon between the supplier and the purchaser. The
thermal resistance Rfor the average of any (four) randomly
selected samples shall not be more than 5 % below the
mutually agreed upon Rvalue when tested in accordance with
12.2, nor shall any single specimen be more than 10 % below
the mutually agreed upon Rvalue.
7.2 Critical Radiant Flux—Mineral ﬁber loose ﬁll when
tested in accordance with 12.3 shall have a critical radiant
ﬂux-ﬂame propagation resistance ≥0.12 W/cm
2
(.11 Btu/ft
2
· s).
7.3 Combustion Characteristics—Mineral ﬁber loose ﬁll
when tested in accordance with 12.4 shall not have a recorded
temperature rise of more than 54°F (30°C); shall have no
ﬂaming after the ﬁrst 30 s; and, if the specimen weight loss
exceeds 50 % during the test, the recorded temperature of the
specimen during the test shall not rise above the furnace air
temperature at the beginning of the test, and there shall be no
ﬂaming of the specimen.
7.4 Water Vapor Sorption—The water vapor sorption of the
insulation shall not be more than 5 % by weight when tested in
accordance with 12.5.
7.5 Odor Emission—A detectable odor of a strong objec-
tionable nature recorded by more than two of the ﬁve panel
members shall constitute rejection of the material when tested
in accordance with 12.6.
7.6 Corrosiveness—When tested in accordance with 12.7,
the metal plates that are in contact with the insulation shall
show no corrosion greater than the comparative plates that are
in contact with sterile cotton that has been tested in the same
manner.
7.7 Fungi Resistance—When tested in accordance with
12.9, the insulation shall have growth no greater than that
observed on the white birch tongue depressor comparative
material.
8. Other Requirements
8.1 Qualiﬁcation Requirements—The following require-
ments are generally emphasized for purposes of initial material
product requirements:
TABLE 1 Coverage Chart
NOTE 1—Chart is occasionally given in metric units.
RValue at 75°F Mean
Temperature Maximum Net Coverage Minimum Thickness Minimum Weight per ft
2
To obtain an insulation
resistance (R) of:
h·ft
2
·°F
Btu
Minimum bags per 1000 ft
2
of net area (bags/MSF)
Maximum ft
2
coverage
per bag (ft
2
)
Installed insulation
to be not less than:
(in.)
Settled thickness
not to be less
than: (in.)
The weight per ft
2
of installed insulation to
be not less than:
(lbs/ft
2
)
Attic:
11
13
15
19
22
26
30
33
38
44
49
60
Sidewalls
A
:R−
A
Optional information for products intended for sidewall application.
C764 − 25
2

8.1.1 Thermal resistance,
8.1.2 Critical radiant ﬂux,
8.1.3 Combustion characteristics,
8.1.4 Water vapor sorption,
8.1.5 Odor emission,
8.1.6 Corrosiveness, and
8.1.7 Fungi Resistance.
8.2 Inspection Requirements—The following requirements
are generally emphasized for purposes of acceptance sampling
of lots of qualiﬁed thermal insulation:
8.2.1 Minimum bag weight, and
8.2.2 Workmanship.
9. Workmanship
9.1 Mineral ﬁber nodulated insulation shall be free of
foreign materials and shall be clean and dry. The insulation
shall not have visible defects that will adversely affect the
service quality.
10. Signiﬁcance and Use
10.1 This speciﬁcation covers products that are used in
buildings. While products that comply with this speciﬁcation
are used in various constructions, they are adaptable primarily,
but not exclusively, to wood frame constructions.
11. Sampling and Conditioning
11.1 Sampling of the insulation shall be in accordance with
Practice C390. Speciﬁc provisions for sampling shall be agreed
upon between the purchaser and supplier.
11.2 Condition the test samples in accordance with Practice
C870.
12. Test Methods
12.1 Blown Density—Determine the blown density in accor-
dance with Guide C1574.
12.2 Thermal Resistance—Using samples prepared in ac-
cordance with Practice C687 for open application or Practice
C1859 for enclosed (behind netting) applications, the thermal
conductivity or thermal conductance shall be determined in
accordance with Test Method C518, Test Method C177, or
derived from measurements made by Test Method C1363. The
mean temperature shall be 75°F (23.9°C) and the temperature
difference shall be a minimum of 40°F (22°C). The thermal
resistance shall then be calculated from the thermal conduc-
tance values using Practice C687 or Practice C1859 as appli-
cable. See Note 1.
NOTE 1—The thermal resistance is a function of mean temperature. As
an option, determine the thermal resistance at additional mean tempera-
tures as agreed upon by the purchaser and the manufacturer.
12.3 Critical Radiant Flux—The critical radiant ﬂux of the
insulation shall be determined in accordance with Test Method
E970.
12.4 Behavior of Materials in a Vertical Tube Furnace at
1382°F (750°C)—The behavior of mineral ﬁber loose-ﬁll
insulation in a vertical tube furnace at 1382°F (750°C) shall be
determined in accordance with Test Method E136.
12.5 Water Vapor Sorption—The water vapor sorption of the
test specimen shall be determined in accordance with Test
Method C1104/C1104M.
12.6 Odor Emission—Determine the odor emission in ac-
cordance with Test Method C1304.
12.7 Corrosiveness:
12.7.1 Scope—This test method provides a qualitative mea-
sure of the corrosiveness of mineral ﬁber insulation by com-
parison to a control.
12.7.2 Summary of Test Method:
12.7.2.1 Individually sandwich ﬁve each of specially
cleaned steel, copper, and aluminum test plates between pieces
of insulation. Hold the insulation uniformly against each side
of the test plate with wire screens and rubber bands.
12.7.2.2 Sandwich an equal number of cleaned metal test
plates between pieces of washed sterile cotton in an identical
manner.
12.7.2.3 Vertically suspend the samples in a humidity test
chamber at 95 63 % relative humidity and temperature of 120
63°F (49 62°C) for time periods determined by the type of
metal being tested. Steel is tested for 96 62 h. Copper and
aluminum are tested for 720 65 h.
12.7.2.4 After the appropriate test period, compare the test
plates exposed to the insulation to the control plates exposed to
sterile cotton for severity of corrosion. The insulation is
considered to have passed this test if the corrosion attributed to
the insulation is not signiﬁcantly worse than that of the washed
sterile cotton controls. The criterion for acceptance is prede-
termined through the use of non-parametric statistics and a
90 % conﬁdence level (α= 0.10).
12.7.3 Signiﬁcance and Use:
12.7.3.1 The ﬁber composition and the type of binder used
in the manufacture of mineral ﬁber insulation sometimes create
a potential for corrosion on certain metals in the presence of
liquid water or water vapor.
12.7.3.2 This test method is used to determine the relative
corrosion potential of mineral ﬁber insulation on speciﬁc
metals under high humidity conditions.
12.7.4 Materials:
12.7.4.1 Metal Test Plates, with dimensions of 1 by 4 6
1
⁄
4
in. (25 by 100 mm). Steel plates shall be 0.02 60.005 in. (0.5
mm) thick, bright No. 2 ﬁnish, cold-rolled low-carbon strip
steel, quarter hard, temper No. 3. The aluminum plates shall be
0.025 60.005 in. (0.6 mm) thick, type 3003-0. Copper plates
shall be 0.032 60.005 in. (0.8 mm) thick, in accordance with
Speciﬁcation B152/B152M type ETP, No. 110 soft copper.
12.7.4.2 Woven Wire Screen, 1
1
⁄
2
6
1
⁄
4
by 4
1
⁄
2
6
1
⁄
4
in. (114
by 38 mm), made of Type 304 stainless steel, 0.063 60.005 in.
(1.60 mm) wire,
7
⁄
16
6
1
⁄
16
in. (11 mm) open-square grid.
12.7.4.3 Rubber Bands, No. 12.
12.7.4.4 Humidity Test Chamber clean, well maintained,
and capable of controlling temperature at 120 63°F (49 6
2°C) and humidity at 95 63 % relative humidity.
12.7.4.5 Cheesecloth or Cotton Gauze, cut into 6 by 10-in.
(152 by 254-mm) pieces.
C764 − 25
3

文档加载中……请稍候！
如果长时间未打开，您也可以点击刷新试试。

下载文档到电脑，查找使用更方便

亲，本站95%以上的标准规范都面向会员免费，办理VIP会员下载更省钱，平均每篇不到2元

立即下载 VIP免费下载

标签： #隔热材料 #纤维 #隔热

摘要：

ASTM C764 - 25 是由美国材料与试验协会（ASTM）发布的最新版标准规范，专门针对矿物纤维松散填充隔热材料的性能要求与测试方法。该标准适用于由矿渣棉、岩棉或玻璃棉制成的松散填充材料，主要用于建筑中阁楼、楼板及空腔墙等部位的热工与声学隔热。规范涵盖了材料的纤维组成、热阻值、密度、可燃性、腐蚀性、含水率及沉降性等关键性能指标，并规定了相应的取样与测试程序。遵循 ASTM C764 - 25 可确保松散填充隔热材料在实际安装后具备稳定的长期隔热效果，同时满足建筑安全与防火要求。该标准对于生

展开>> 收起<<

ASTM C764 - 25 矿物纤维松散填充隔热材料的标准规范.pdf

共5页,预览3页

还剩页未读，继续阅读

声明：本文档系会员上传，若文档所含内容侵犯了您的版权或隐私，请立即通知，我们立即给予侵权申诉删除！

ASTM C764 - 25 矿物纤维松散填充隔热材料的标准规范

相关推荐

开通VIP享超值会员特权

相关内容

热门标签

举报选择: