ASTM C547 - 22a

VIP免费

Carl 2024-09-02 56 322.06KB 7 页 12星币

Designation: C547 −22a
Standard Speciﬁcation for
Mineral Fiber Pipe Insulation
1
This standard is issued under the ﬁxed designation C547; 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 mineral ﬁber insulation pro-
duced to form hollow cylinders for standard pipe and tubing
sizes. Use mineral ﬁber pipe insulation that has been either
molded or precision v-grooved, with one or more walls split
longitudinally for use on pipe temperatures up to 1400°F
(760°C).
1.2 For satisfactory performance, use properly installed
protective vapor retarders or barriers on sub-ambient tempera-
ture applications to reduce movement of moisture through or
around the insulation to the colder surface. Failure to use a
vapor barrier can lead to insulation and system damage. Refer
to Practice C921 to aid material selection.
1.3 Flexible mineral ﬁber wrap products such as
perpendicular-oriented ﬁber insulation rolls, non-precision or
manually scored block or board, or ﬂexible boards or blankets
used as pipe insulation, are not covered by this speciﬁcation.
1.4 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.
1.5 For Naval Sea Systems Command (NAVSEA)
acceptance, materials must also comply with Supplemental
Requirements. See Annex A1 of this standard.
1.6 The following safety hazards caveat applies to the test
methods portion, Section 11, only: 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 appropriate safety, health, and environmental
practices and determine the applicability of regulatory limita-
tions prior to use.
1.7 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
C167 Test Methods for Thickness and Density of Blanket or
Batt Thermal Insulations
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
C302 Test Method for Density and Dimensions of Pre-
formed Pipe-Covering-Type Thermal Insulation
C335/C335M Test Method for Steady-State Heat Transfer
Properties of Pipe Insulation
C356 Test Method for Linear Shrinkage of Preformed High-
Temperature Thermal Insulation Subjected to Soaking
Heat
C390 Practice for Sampling and Acceptance of Thermal
Insulation Lots
C411 Test Method for Hot-Surface Performance of High-
Temperature Thermal Insulation
C447 Practice for Estimating the Maximum Use Tempera-
ture of Thermal Insulations
C585 Practice for Inner and Outer Diameters of Thermal
Insulation for Nominal Sizes of Pipe and Tubing
C665 Speciﬁcation for Mineral-Fiber Blanket Thermal Insu-
lation for Light Frame Construction and Manufactured
Housing
C680 Practice for Estimate of the Heat Gain or Loss and the
Surface Temperatures of Insulated Flat, Cylindrical, and
Spherical Systems by Use of Computer Programs
C795 Speciﬁcation for Thermal Insulation for Use in Con-
tact with Austenitic Stainless Steel
1
This speciﬁcation is under the jurisdiction of ASTM Committee C16 on
Thermal Insulation and is the direct responsibility of Subcommittee C16.20 on
Homogeneous Inorganic Thermal Insulations.
Current edition approved Sept. 1, 2022. Published October 2022. Originally
approved in 1964. Last previous edition approved in 2022 as C547 – 22. DOI:
10.1520/C0547-22A.
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
contact ASTM Customer Service at service@astm.org. 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

C921 Practice for Determining the Properties of Jacketing
Materials for Thermal Insulation (Withdrawn 2021)
3
C1045 Practice for Calculating Thermal Transmission Prop-
erties Under Steady-State Conditions
C1058/C1058M Practice for Selecting Temperatures for
Evaluating and Reporting Thermal Properties of Thermal
Insulation
C1104/C1104M Test Method for Determining the Water
Vapor Sorption of Unfaced Mineral Fiber Insulation
C1335 Test Method for Measuring Non-Fibrous Content of
Man-Made Rock and Slag Mineral Fiber Insulation
C1617 Practice for Quantitative Accelerated Laboratory
Evaluation of Extraction Solutions Containing Ions
Leached from Thermal Insulation on Aqueous Corrosion
of Metals
E84 Test Method for Surface Burning Characteristics of
Building Materials
2.2 Other Standards:
UL 723 Tests for Surface Burning of Building Materials
4
CAN/ULC-S102 Standard Method of Test for Surface Burn-
ing Characteristics of Building Materials and Assemblies
5
3. Terminology
3.1 The deﬁnitions in Terminology C168 shall apply to the
terms used in this speciﬁcation.
3.2 Deﬁnitions of Terms Speciﬁc to This Standard:
3.2.1 molded—refers to products preformed via a molding
process to yield full-round cylindrical pipe insulation sections.
3.2.2 precision v-groove—refers to products fabricated from
machined board via a precision cutting process. Machined
segments are adhered to a backing to form a full-round
cylindrical pipe insulation section. Due to the precision of the
process, the product has no gaps when installed.
4. Classiﬁcation
4.1 Products covered by this speciﬁcation are classiﬁed
according to maximum use temperature as follows:
4.1.1 Type I—Molded, for use to 850°F (454°C).
Grade A—Requires no heat-up schedule
Grade B—Heat-up schedule is required
4.1.2 Type II—Molded, for use to 1200°F (650°C).
Grade A—Requires no heat-up schedule
Grade B—Heat-up schedule is required
4.1.3 Type III—Precision v-groove, for use to 1200°F
(650°C).
Grade A—Requires no heat-up schedule
Grade B—Heat-up schedule is required
4.1.4 Type IV—Molded, for use to 1000°F (538°C).
Grade A—Requires no heat-up schedule
Grade B—Heat-up schedule is required
4.1.5 Type V—Molded, for use to 1400°F (760°C)
Grade A—Requires no heat-up schedule
Grade B—Heat-up schedule is required
NOTE 1—Warning: Grade B may not be suitable for applications
requiring hot installation capability at the maximum temperature indi-
cated. Products having a Grade B designation are designed to be used with
a heat-up schedule. Failure to use a heat-up schedule with Grade B
products may lead to an exothermic reaction. This is dependent on
thickness and temperature. Consult the manufacturer or manufacturer’s
literature for special heat rate considerations.
4.2 It is possible that binder decomposition at elevated
temperature will be a limiting factor in certain applications.
Consult the manufacturer regarding special heat rate consider-
ations.
5. Materials and Manufacturer
5.1 Composition—The mineral ﬁber insulation for pipes
shall be manufactured from mineral substance such as rock,
slag, or glass, processed from a molten state into ﬁbrous form
with binder. Asbestos shall not be used as an ingredient or
component part. It is possible that some products will also
contain adhesive.
5.2 Jackets (Facings)—The user of this speciﬁcation has the
option to specify that the insulation be jacketed.
NOTE 2—The user is advised that the maximum use temperature of
factory-applied facings and adhesives may be lower than the maximum
use temperature of the insulation. The speciﬁer shall ensure that sufficient
insulation thickness is installed so none of these accessory items (facings
and adhesives) are exposed to temperatures above their maximum use
temperature. The products covered by this standard are predominantly
inorganic in nature. Organic facings, adhesives and binders are also used
in the construction of these products. The resulting composite therefore
could have increased combustibility.
6. Physical Requirements
6.1 The product shall conform to the following require-
ments in addition to those speciﬁed in Table 1.
6.2 Hot Surface Performance:
6.2.1 The product shall not crack, warp, ﬂame, or glow
during hot surface exposure. No evidence of melting or ﬁber
degradation shall be evident upon post test inspection.
6.2.2 For Grade A products, the insulation’s internal tem-
perature rise (exotherm) shall not exceed the pipe surface
temperature by more than 200°F (111°C) for each measure-
ment location as required by Practice C447. If the setpoint
temperature is lower than the average pipe surface temperature,
the exotherm is derived by the difference between the maxi-
mum measured temperature and the pipe surface set point
temperature.
NOTE 3—In some situations where an exothermic reaction is observed,
the apparatus is heated above the test set point temperature by the
exothermic reaction. This provision is to ensure that the amount the
apparatus is heated above the set point temperature is not added to the
pass/fail threshold.
6.3 Non-ﬁbrous (Shot) Content:
6.3.1 The non-ﬁbrous content of a rock- or slag-based
product shall not exceed 25 % by weight.
3
The last approved version of this historical standard is referenced on
www.astm.org.
4
Available from Underwriters Laboratories (UL), 2600 N.W. Lake Rd., Camas,
WA 98607-8542, http://www.ul.com.
5
Available from Underwriters Laboratories of Canada, 7 Crouse Road,
Scarborough, Ontario MIR3A9.
C547 − 22a
2

6.4 For Naval Sea Systems Command (NAVSEA)
acceptance, materials must also comply with Supplemental
Requirements. See Annex A1 of this standard.
6.5 Corrosiveness to Steel—When tested and evaluated in
accordance with 11.1.10, the corrosion resulting from insula-
tion in contact with steel plates shall be judged to be no greater
than for comparative plates in contact with sterile cotton. Test
the composite insulation material (with facing and adhesive)
when a facing is factory adhered by the manufacturer or
fabricator. (Warning—There are adhesives that can cause
corrosion to steel when they are in contact with water or water
vapor and the steel. Currently there is not a test method
available to satisfy all potential causes of corrosion).
6.5.1 The use of Practice C1617 is an acceptable alternative
to the test procedure in 11.1.10, with the mass loss corrosion
rate of the steel test sample exposed to the unfaced or faced
insulation extract not to exceed that of the 5 ppm chloride
solution.
7. Standard Shapes, Sizes, and Dimensions
7.1 The basic shape of mineral ﬁber pipe insulation forms a
right annular cylinder, which is radially slit on at least one side
of the cylinder axis. It is furnished in sections or segments
designed to ﬁt standard sizes of pipe and tubing.
7.2 Typical available thicknesses range from nominal
1
⁄
2
-in.
(13 mm) to nominal 6-in. (152 mm), single or double layer, in
1
⁄
2
-in. increments for most pipe and tubing sizes.
7.3 Individual dimensions for inner diameter and wall
thickness shall conform to Practice C585.
7.4 Standard section or segment length shall be 3 ft (0.91m)
or as agreed upon between the buyer and seller.
8. Dimensional Tolerances
8.1 Length equals 6
1
⁄
8
-in. (3 mm).
8.2 When installed on a nominal pipe or tubing size as
deﬁned in Practice C585, the insulation shall ﬁt snugly and
have tight longitudinal and circumferential joints.
8.3 The inner and outer bore of the insulation shall be
concentric to the outer surface. The deviation from concentric-
ity shall not exceed
3
⁄
16
in. (5 mm).
9. Workmanship
9.1 The insulation shall not have defects that will adversely
affect installation or service quality.
10. Sampling
10.1 When speciﬁed in the purchase order or contract,
sampling and acceptance shall be in accordance with Practice
C390.
11. Test Methods
11.1 The properties in this speciﬁcation shall be determined
in accordance with the following test methods, with jacketing
excluded unless stated otherwise.
11.1.1 Density and Dimensions—Test Method C302.
11.1.2 Linear Shrinkage—Test Method C356.
11.1.3 Thermal Conductivity—Test Method C335/C335M.
11.1.3.1 Thermal performance shall be characterized on a
3-in. NPS × 2-in. pipe insulation size. Thermal performance
must be assessed on actual pipe insulation sections. Product
density of test specimen shall be recorded and reported per Test
TABLE 1 Requirements of Mineral Fiber Pipe Insulation (Grades A & B)
Property Type I
(Grades A
andB)
Type II
(Grades A
and B)
Type III
(Grades A
and B)
Type IV
(Grades A
and B)
Type V
(Grades A
and B
Use temperature, max, °F (°C) 850 (454) 1200 (650) 1200 (650) 1000 (538) 1400 (760)
Sag resistance, max, %
thickness change
55555
Linear shrinkage (length), max,
% change after change
after soaking heat at maximum
use temperature
22222
Water vapor sorption, max, %
by weight
55555
Surface burning characteristics,
max
Flame spread index 25 25 25 25 25
Smoke developed index 50 50 50 50 50
Apparent thermal conductivity,
max, Btu.in./h,ft
2
, °F(W/m.K)
Mean temperature
A
°F (°C)
100 (38) 0.25 (0.036) 0.25 (0.036) 0.25 (0.036) 0.25 (0.036) 0.25 (0.036)
200 (93) 0.31 (0.045) 0.31 (0.045) 0.31 (0.045) 0.31 (0.045) 0.31 (0.045)
300 (149) 0.40 (0.058) 0.37 (0.053) 0.37 (0.053) 0.37 (0.053) 0.37 (0.053)
400 (204) 0.51 (0.074) 0.45 (0.065) 0.45 (0.065) 0.45 (0.065) 0.45 (0.065)
500 (260) 0.64 (0.092) 0.54 (0.078) 0.54 (0.078) 0.54 (0.078) 0.54 (0.078)
600 (316) 0.65 (0.094) 0.65 (0.094) 0.65 (0.094) 0.65 (0.094)
700 (371) 0.77 (0.111) 0.77 (0.111) 0.77 (0.111) 0.77 (0.111)
A
The user is advised that retroﬁt applications (where new insulation is being applied over existing) could require knowing the thermal conductivity of the existing layer at
mean temperatures above those shown. Consult a manufacturer for data at mean temperatures exceeding those listed.
C547 − 22a
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

摘要：

ASTM C547 - 22a 是适用于矿物纤维预制管绝热材料的标准规范，最新修订于2022年。该标准涵盖了用于高温和低温管道系统的矿物纤维管壳材料，包括玻璃纤维和矿渣棉等类型，明确了材料的密度、导热系数、抗弯强度、线收缩率、腐蚀性等关键性能指标，并规定了尺寸允许偏差、施工安装要求及测试方法。ASTM C547 广泛应用于建筑、工业、化工与能源领域的管道绝热工程，是确保管道系统节能、防火和安全运行的重要技术依据。对于工程师、采购人员和施工方而言，遵循该标准有助于选择合规的绝热材料，提升系统能效并

展开>> 收起<<

ASTM C547 - 22a.pdf

共7页,预览4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 C547 - 22a

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: