editor evaluating revision
Burning Characteristics of Building Materials and Assem-blies4
3.Terminology
3.1For definitions used in this specification see Terminol-ogy C168.
3.2Definitions of Terms Specific to This Standard:
3.2.1delivered thickness—the actual thickness of the prod-uct shipped by the manufacturer or the seller and received by the purchaser.
3.2.2mean temperature—the sum of the cold surface tem-perature and the hot surface temperature divided by two.
3.2.3shot—for the purposes of this specification,as that material which cannot be brushed or mechanically shaken through No.100(150-µm)sieve.
4.Classification
4.1Mineralfiber board insulation covered by this specifi-cation shall be classified into seven types and two categories shown in Table  1.This classification is based upon the insulation’s maximum use temperature,maximum apparent thermal conductivity,maximum linear shrinkage,maximum water vapor sorption,and maximum surface burning charac-teristics.
4.1.1Category1—No compressive resistance(load-bearing)properties are required.
4.1.2Category2—Minimum compressive resistance(load-bearing)properties are required.
5.Ordering Information
5.1The type,category,and dimensions shall be specified by the purchaser.
6.Materials and Manufacture
6.1Composition—Mineralfiber block and semirigid and rigid board insulation shall be composed of rock,slag,or glass processed from the molten state intofibrous form and bonded with an organic or inorganic binder,or both.Asbestos shall not be used as an ingredient or component part of the product.
6.2Facings:
6.2.1The purchaser shall specify whether the insulation shall be supplied plain or with facings and,if faced,shall specify the type and its requirements.(Warning—The user is advised that the maximum use temperature of facings and adhesives may be lower than the maximum use temperature of the insulation.The user shall ensure that sufficient thickness shall be installed so none of these accessory items(facings and adhesives)are exposed to temperatures above their maximum use temperature.)
6.2.2The vapor retarder facings shall be in accordance with Specification C1136.
6.2.3Typical facings are as follows:
6.2.3.1Aluminum foil,reinforcedfiberglass scrim,and natural(brown)kraft paper laminate(facing)generally known as FRK or FSK.
6.2.3.2White kraft paper,reinforcedfiberglass scrim,and aluminum foil laminate(facing)generally known
as ASJ(All Service Jacket).
6.2.3.3Aluminum foil,reinforcedfiberglass scrim,and plasticfilm(example:polyethylene)laminate(facing)gener-ally known as FSP(Foil-Scrim-Polyethylene).
7.Physical Properties
7.1The insulation type shall conform to the following requirements in Table1:maximum use temperature,apparent thermal conductivity,compressive resistance,linear shrinkage, water vapor sorption,and surface burning characteristics. 7.2Odor Emission—A detectable odor of objectionable
4Available from Underwriters Laboratories of Canada,7Crouse Road,Scarbor-
ough,Ontario,Canada M1R3A9.
TABLE1Physical Property Requirements A
Properties Type IA Type IB Type II Type III Type IVA Type IVB Type V Maximum use temperature B°F(°C)450(232)450(232)850(454)1000(538)1200(649)1200(649)1800(982) Apparent thermal conductivity,max,Btu in./h
ft2°F(W/m K)
Mean temperatures°F(°C)
75(24)0.26(0.037)0.26(0.037)0.25(0.036)0.25(0.036)0.25(0.036)0.24(0.035
100(38)0.28(0.040)0.27(0.039)0.27(0.039)0.27(0.039)0.27(0.039)0.25(0.036)
200(93)0.36(0.052)0.34(0.049)0.35(0.050)0.35(0.050)0.34(0.049)0.30(0.043)0.35(0.050)
300(149)0.46(0.066)0.42(0.060)0.44(0.063)0.44(0.063)0.44(0.063)0.36(0.052)0.42(0.061)
400(204)0.55(0.079)0.55(0.079)0.55(0.079)0.42(0.061)0.52(0.075)
500(260)0.70(0.101)0.70(0.101)0.70(0.101)0.53(0.076)0.64(0.092)
600(316)0.90(0.130)0.85(0.123)0.63(0.091)0.72(0.104)
700(371)  1.00(0.144)0.75(0.108)0.79(0.114)
800(427)0.95(0.137) Category I no compressive resistance requirement
Category2N.A.C25(1.2)25(1.2)12(0.6)50(2.4)50(2.4)1000(48) Minimum Compressive resistance at10%
deformation,min,lb/ft2(kPa)
Linear shrinkage,at maximum use
temperature,%
2.0  2.0  2.0  2.0  2.0  2.0  4.0 Water vapor sorption,max,%  5.0  5.0  5.0  5.0  5.0  5.0  5.0 Surface burning characteristics:
Flame spread index,max25252525252525 Smoke developed,max50505050505050
A Refer to Section7for additional physical property requirements.
B See Caution in6.2.1.
C N.A.indicates not applicable.
nature recorded by more than two of five panel members shall constitute rejection of the material when
tested in accordance with 12.8.
7.3Corrosiveness to Steel —When tested and evaluated in accordance with 12.9,the corrosion resulting from insulation 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 the fabricator.(Warning—There are adhesives that can cause cor-rosion 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 every potential corrosion application.)7.4Stress Corrosion to Austenitic Stainless Steel —When specified,shall be tested and evaluated in accordance with 12.10.
7.5Semirigid or Rigid —When tested and evaluated at its delivered thickness in accordance with 12.11,all mineral fiber (rock,slag,and glass)board and block must qualify to be semirigid or rigid.
7.6Non-Fibrous (Shot)Content —The averaged maximum shot content of rock or slag mineral fiber products,Types IA through IVB as shown in Table 1,shall not exceed 30%by weight as defined in 12.2.Type V products usually contain other ingredients which invalidates the way shot content can be determined.Non-fibrous content is not applicable to glass mineral fiber products.
7.7Maximum Use Temperature —When tested in accor-dance with 10.1,the board and block insulation shall not warp,flame,or glow during hot surface exposure.No evidence of melting or fiber degradation shall be evident upon posttest inspection.
7.8Maximum Exothermic Temperature Rise —When tested in accordance with 10.1,the midpoint temperature shall not at any time exceed the hot surface temperature by more than 200°F (111°C).The 200°F criterion applies during heat-up as well as steady state conditions.Exceeding this limit constitutes noncompliance to this specification and rejection.
8.Qualification Requirements
8.1The following requirements shall be employed for the purpose of initial product qualification:8.1.1Maximum use temperature,8.1.2Apparent thermal conductivity,8.1.3Compressive resistance,8.1.4Linear shrinkage,8.1.5Water vapor sorption,
8.1.6Surface burning characteristics,8.1.7Odor emission,8.1.8Corrosiveness,8.1.9Rigidity,and 8.1.10Shot content.
9.Dimensions,Mass,and Permissible Variations
9.1The standard sizes and tolerances of mineral fiber board
insulation generally available are listed in Table 2.Specific sizes and tolerances can be agreed upon between the purchaser and the supplier.
9.2The maximum density (determined in accordance with Test Method C 303)specified in Table 3for Type(s)IA through Type V are for weight design purposes only.
10.Workmanship,Finish and Appearance
10.1The insulation shall have good workmanship and shall not have defects which adversely affect its installation and service qualities.
11.Sampling
11.1Inspection and qualification shall be in accordance with Criteria C 390.Other provisions for sampling can be agreed upon between the purchaser,seller,and the manufacturer.11.2Shot Content Test Samples —A minimum of three specimens must be tested to determine average shot content for any single shipment.
12.Test Methods
12.1Maximum Use Temperature and Exothermic Rise Temperatures —Test in accordance with Test Method C 411and the hot surface performance of Practice C 447at the insulation’s maximum use temperature and at the manufactur-er’s maximum recommended thickness.The test surface shall be at the intended surface temperature when testing begins.No special requirements for heat-up shall be specified by the manufacturer.
12.2Non-Fibrous (Shot)Content of Inorganic Fibrous Thermal Insulation —Test in accordance with Test Method C 1335.
12.3Apparent Thermal Conductivity :
12.3.1Determine the thermal conductivity as a function of temperature for the representative specimens with data ob-tained from a series of thermal tests utilizing Test Methods C 177,C 518,or C 1114as appropriate for the material under study.Test the specimen unfaced and at a maximum thickness of 2in.(51mm).
12.3.1.1Test Method C 518shall not be used at tempera-tures or resistances other than those in the range of the calibration.
TABLE 2Standard Sizes and Tolerances A
Mineral Fiber Board and Block for Types by Length,Width,
and Thickness
Sizes,in.(mm)
Tolerance,in.(mm)
Length—Types IA through IVB 36(914),48(1219)61⁄2(12.7)Length—Type V 36(914),48(1219)
61⁄2(12.7)Width—Types IA through IVB 24(610),36(914),48(1219)61⁄4(6.4)Width—Type V 12(305),24(610),61⁄4(6.4)
Thickness—All Types 1(25.4)to 4(102)–1⁄8
(3.2)+1⁄4(6.4)
in 1⁄2-in.(12.7-mm)increments
A
Other sizes available upon request.
TABLE 3Maximum Density for Design
Type IA
Type IB Type II Type III Type IVA Type IVB Type V Maximum density,lb/ft 3
(kg/m 3
),for weight design purposes only
8(128)
8(128)
8(128)
10(160)
12(192)
12(192)
20
(320)
12.3.1.2Test Method C1114shall not be used at tempera-tures or resistance ranges other than those with comparable results to Test Method C177.
12.3.2The test method selected shall have proven correla-tion with Test Method C177over the temperature range of conditions used.In cases of dispute,Test Method C177shall be considered as thefinal authority for material havingflat geometry.
12.3.3Practice C1058may be used to obtain recommended test temperature combinations for testing purposes.
12.3.4As specified in Practice C1045,the range of test conditions must include at least one test where the hot surface temperature is greater than,or equal to,the hot limit of the temperature range of desired data and at least one test where the cold surface temperature is less than,or equal to,the cold limit of t
he temperature range desired.Additional tests,at least two additional,shall be distributed somewhat evenly over the rest of the temperature range.
12.3.5Conduct thefinal analysis of the thermal data in accordance with Practice C1045to generate a thermal con-ductivity versus temperature relationship for the specimen. 12.3.6Thefinal step of Practice C1045analysis would be to calculate the thermal conductivity using the equations generated at a set of mean temperatures for comparison to the specification.(Warning—While it is recommended that the specification data be presented as conductivity versus tempera-ture,several existing specifications may contain mean tempera-ture data from tests conducted at specific hot and cold surface temperatures.In these cases,the conductivity as a function of temperature from the Practice C1045analysis may provide different results.To ensure that the data is compatible,a Practice C680analysis,using the conductivity versus tempera-ture relationship from Practice C1045and the specific hot and cold surface temperatures,is required to determine the effec-tive thermal conductivity for comparison to the specification requirements.)
12.4Compressive Resistance—Test2-in.(51-mm)thick material in accordance with Test Method C165.Pre-load the horizontal loading surface with2.5-lb/ft2(0.12-kPa)weight before measuring thickness.
N OTE1—At conditions above450°F(232°C)hot surface temperatures, the compressive resistance of the installed insulation material may decrease.Contact the manufacturer for reduced compression resistances at maximum temperature conditions.
12.5Linear Shrinkage—Test in accordance with Test Method C356except use a6-in.(152-mm)by12-in.(305-mm)by single layered product thickness test specimen and measure the linear shrinkage in the12-in.dimension.
12.6Water Vapor Sorption—Test in accordance with Test Method C1104/C1104M.
12.7Surface Burning Characteristics—Test in accordance with Test Method E84.For Canada,test in accordance with Test Method CAN/ULC-S102–M88.Test with facing and adhesive in place,if facing is intended to be the end product.
12.8Odor Emission—Test in accordance with the odor emission test of Test Method C1304.
12.9Corrosiveness to Steel—Test in accordance with the corrosiveness test of Specification C665.
12.10Stress Corrosion Performance for Use on Austenitic Stainless Steel—When requested,test in accordance with Specification C795.All test specimens must include the facing and adhesive if intende
d to be the end product.
12.11Rigidity or Semirigidity—Test in accordance with Test Method C1101/C1101M for semirigidity and rigidity only.Should the product sag more than1⁄2in.(13mm)and not remain supported between the two1⁄2-in.NPS iron pipes for a minimum period of5min,the test for rigidity or semirigidity has failed and the product is rejected.
13.Inspection
13.1The following requirements are generally employed for the purpose of acceptance sampling of lots or shipments of qualified insulation.
13.1.1Dimensional tolerance.
13.1.2Workmanship.
14.Rejection
14.1Material that fails to conform to the requirements of this specification may be rejected.Rejection should be reported to the manufacturer or the seller promptly and in writing.The manufacturer and supplier have the right to verify rejected products.
15.Certification
15.1When specified in the purchase order or contact,the purchaser shall be furnished certification that samples repre-senting each lot have been either tested or inspected as directed in this specification and the requirements have been met.When specified in the purchase order or contract,a report of the test results shall be furnished.
16.Packaging and Package Marking
16.1Packaging—Unless otherwise specified,the insulation shall be packed in the manufacturer’s standard commercial container.
16.2Marking—Unless otherwise specified,each container shall be marked with the manufacturer’s name and address,the product name,quantity,nominal dimensions,and the manufac-turer’s lot or date code identification for the material in the container.When specified in the purchase order or contract, each container shall also be marked with appropriate specifi-cation alphanumeric number,type,and category.
17.Keywords
17.1block;board;high temperature;mineralfiber insula-tion;rockfiber;shot;shot content;slag
fiber
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This standard is subject to revision at any time by the responsible technical committee and must be reviewed everyfive years and if not revised,either reapproved or withdrawn.Your comments are invited either for revision of this standard or for additional standards and should be addressed to ASTM Headquarters.Your comments will receive careful consideration at a meeting of the responsible technic
al committee,which you may attend.If you feel that your comments have not received a fair hearing you should make your views known to the ASTM Committee on Standards,at the address shown below.
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