1、Designation: C1497 16Standard Specification forCellulosic Fiber Stabilized Thermal Insulation1This standard is issued under the fixed designation C1497; the number immediately following the designation indicates the year oforiginal adoption or, in the case of revision, the year of last revision. A n
2、umber in parentheses indicates the year of last reapproval. Asuperscript epsilon () indicates an editorial change since the last revision or reapproval.1. Scope1.1 This specification covers the composition and physicalproperties of spray-applied cellulosic fiber stabilized thermalinsulation applied
3、to open or closed ceiling spaces, regardlessof slope, where temperatures range from 49 to 194F (45 to90C).1.2 Stabilized cellulosic fiber thermal insulation is producedby the addition of adhesive(s) to loose-fill cellulosic fiberinsulation. The adhesive(s) are either added to the insulation attime o
4、f manufacture and, if necessary, activated by the additionof water when installed or the adhesive(s) are otherwise addedto the insulation at the time of installation.1.3 This is a material specification that is not intended todeal with methods of application that are supplied by themanufacturer.1.4
5、The values stated in inch-pound units are to be regardedas standard. The SI units given in parentheses are for informa-tion only.1.5 This standard does not purport to address all of thesafety concerns, if any, associated with its use. It is theresponsibility of the user of this standard to establish
6、 appro-priate safety and health practices and determine the applica-bility of regulatory limitations prior to use.2. Referenced Documents2.1 ASTM Standards:2C167 Test Methods for Thickness and Density of Blanket orBatt Thermal InsulationsC168 Terminology Relating to Thermal InsulationC177 Test Metho
7、d for Steady-State Heat Flux Measure-ments and Thermal Transmission Properties by Means ofthe Guarded-Hot-Plate ApparatusC739 Specification for Cellulosic Fiber Loose-Fill ThermalInsulationC1149 Specification for Self-Supported Spray Applied Cel-lulosic Thermal InsulationC1304 Test Method for Assess
8、ing the Odor Emission ofThermal Insulation MaterialsC1338 Test Method for Determining Fungi Resistance ofInsulation Materials and FacingsE691 Practice for Conducting an Interlaboratory Study toDetermine the Precision of a Test MethodE970 Test Method for Critical Radiant Flux of ExposedAtticFloor Ins
9、ulation Using a Radiant Heat Energy Source3. Terminology3.1 DefinitionsFor definitions of terms used in thisspecification, see Terminology C168.3.2 Definitions of Terms Specific to This Standard:3.2.1 shrinkagedecrease in thickness that occurs from thetime of installation until the insulation is dry
10、 (see 7.2.5).3.2.2 stabilized cellulosea cellulosic insulation producttreated to resist, after drying, further settling of no more than5%.4. Materials and Manufacture4.1 The basic material shall be recycled cellulosic fibermade from selected paper or paperboard stock. Additives areintroduced to affe
11、ct different performance characteristics, in-cluding those related to fire performance, processing, andhandling. An adhesive is added to the insulation product toresist long-term settling of the insulation after installation andcuring.4.2 The materials are processed into a form suitable forinstallat
12、ion by a pneumatic method.4.3 The adhesive is added to the product either at the time ofmanufacture or at the time of installation by means of a liquidspray.5. Physical and Chemical Properties5.1 DensityThe density of conditioned stabilized insula-tion in lb/ft3(kg/m3) shall be determined in accorda
13、nce withSection 7.5.2 CorrosivenessThe loose-fill insulation material shallbe tested for corrosiveness in accordance with Section 8. The1This specification is under the jurisdiction of ASTM Committee C16 onThermal Insulation and is the direct responsibility of Subcommittee C16.23 onBlanket and Loose
14、 Fill Insulation.Current edition approved Oct. 1, 2016. Published October 2016. Originallyapproved in 2001. Last previous edition approved in 2012 as C1497 12. DOI:10.1520/C1497-16.2For referenced ASTM standards, visit the ASTM website, www.astm.org, orcontact ASTM Customer Service at serviceastm.or
15、g. For Annual Book of ASTMStandards volume information, refer to the standards Document Summary page onthe ASTM website.Copyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States1composition of the insulation material shall be such that aftertes
16、ting, no perforation of the 0.003 in. (0.076 mm) metalspecimens shall be evident when the specimens are observedover a 40-W appliance light bulb. Notches extending into thecoupon 0.1 in. (3 mm) or less from any edge shall be ignored.5.3 Critical Radiant FluxWhen tested in accordance withSection 9, t
17、he critical radiant flux shall be equal to or greaterthan 0.11 Btu/ft2s (0.12W/cm2).All values shall be reported totwo significant digits.5.4 Fungi ResistanceThe loose-fill insulation materialshall be tested and pass fungi resistance as specified in Section10. All three test specimens shall exhibit
18、growth less than orequal to the comparative material in order to pass.5.5 Water Vapor SorptionMoisture gain in the insulationshall be no more than 15 % by weight when tested inaccordance with Section 11.5.6 Odor EmissionAny sample producing a detectableodor that is classified as objectionable and st
19、rong or strong bymore than two panel members shall be considered to havefailed the test when tested in accordance with Section 12.5.7 Smoldering CombustionWhen tested in accordancewith the smoldering combustion test method in Section 13, theinsulation shall show no evidence of flaming and a weight l
20、ossof no greater than 15 % of the specimen weight.5.8 Thermal ResistanceThe standard thermal resistancevalues recommended for application shall be expressed inFhft2/Btu (Km2/W). The R-value shall be measured inaccordance with Section 14. During random sampling, anaverage measured R for four specimen
21、s that is 95 % of thelabeled value shall be acceptable provided no measurement isless than 90 % of the labeled value.35.9 Permanency of Flame Retardant TreatmentIt is im-portant to ensure that the fire test response characteristics of thecellulosic fiber insulation, expressed as the critical radiant
22、 fluxin accordance with 5.3 or as the smoldering performance inaccordance with 5.7, not be degraded over time. The rationalefor the concern is that the additives used for improving the firetest response characteristics of cellulosic fiber insulation arephysically added to the cellulose and are not c
23、hemically boundto the cellulose. Studies have been made in the past indicatingthat cellulose insulation treated with boric acid (1),4borates(2), and ammonium sulfate (3) retains its fire test responsecharacteristics for years, based on cellulose insulation that hadbeen installed for periods of up to
24、 14 years (4,5). No data hasbeen presented to the committee to update or revise thisinformation and no permanency test method has been devel-oped to date.5.10 ShrinkageThe shrinkage (S1) determined in accor-dance with Section 7.5.11 SettlingThe settling (S2) determined in accordancewith Section 7 sh
25、all be no greater than 5 %.6. Workmanship, Finish, and Appearance6.1 The product shall be free of extraneous foreign materialssuch as metals and glass that will adversely affect the perfor-mance in service.7. Shrinkage, Settling, and Density7.1 Density:7.1.1 ScopeThis test method provides a basis fo
26、r calcu-lating the product coverage values and for conducting physicalproperty tests requiring the use of density for specimenpreparation. The shrinkage and settling results provide infor-mation for installation.7.1.2 Significance and UseThe density is the weight perunit volume expected after long-t
27、erm attic use. All testing ofthis product shall be done using specimens having the densitydetermined by the drop box method described in this section.7.1.3 Apparatus:7.1.3.1 Insulation Specimen ContainerThe drop box ap-paratus shall consist of an open-top box with sides and bottommade from34-in. (19
28、 mm) thick plywood. The interior of thebox shall be treated with a water sealer. The interior dimen-sions of the box shall be 22 by 36 by 5-in. (deep) (559 by 914by 127 mm) for insulation withR32 ft2hF/Btu (5.64 Km2/W). A 1.0-in. (25 mm) steel “eye”shall be attached to each corner to facilitate lift
29、ing the box witha cable or rope harness and pulley system. All box dimensionsshall be within 63 % of the values specified above.7.1.3.2 SpacerA 6.0-in. (150 mm) thick spacer shall befabricated for positioning the box above a concrete floor. Thespacer shall be fitted with a handle or heavy cord to as
30、sistmoving it from below the suspended box. Use a quick releasedevice to drop the suspended box.7.1.3.3 BalanceA balance having sufficient capacity toweigh a specimen container with freshly installed insulation towithin 0.01 lb (5g).7.1.3.4 Probe and RulerA 0.125 6 0.008 in. (3.2 6 0.2mm) diameter m
31、etal rod that is pointed on one end shall beused as a pin gauge.Asteel rule with 0.05 in. (1.0 mm) or finerreadability shall be used to determine insulation thicknesses.The device pictured in Figure 1 of Test Methods C167 issuitable for use.7.2 Procedure:7.2.1 A partially enclosed area is required f
32、or specimenpreparation. The enclosure must protect the blowing operationfrom wind or strong air currents. Ensure that the geometry ofthe room does not influence the stream of insulation from thehose. It is recommended that the area of the enclosure be atleast 2.5 times the area of the test specimen
33、container.7.2.2 The weight of the empty box, M1, shall be determinedto within 0.06 lb (25 g).7.2.3 The product to be tested shall be installed in the boxusing equipment and installation instructions recommended by3The ranges of thermal resistance, R, listed in this section are allowed by FederalTrad
34、e Commission 16 CFR Part 460 Trade Regulation Rule: Labeling andAdvertising of Home Insulation.4The boldface numbers in parentheses refer to a list of references at the end ofthis standard.C1497 162the manufacturer. Excess insulation shall be screed from thetop of the test specimen to provide a leve
35、l surface thatcoincides with the top edges of the box. The weight of the boxand newly installed insulation, M2, shall be determined towithin 0.06 lb (25 g) and recorded.7.2.4 The average depth of the insulation shall be deter-mined to within 0.05-in. (1 mm) using a metal probe. Fiveindividual depth
36、measurements shall be averaged to obtain thedepth that is representative of the newly installed insulation.Individual measurements shall be taken at the center of the boxand in each quadrant of the box.7.2.5 The insulation shall be allowed to dry in a conditionedspace maintained at 75 6 5F and 50 6
37、5 % RH until a changein net weight of the specimen is less than 0.06 lb (25 g) in twoconsecutive weight determinations with 24 h between determi-nations. The weight of the box with the conditioned (dry)insulation, M3, shall be recorded. Since it is possible thatmoving of boxes containing insulation
38、will disturb theinsulation, a suitable solution involves preparing an additional10-in. deep box of insulation installed in the same manner asthe test specimens and using it to track the drying of the testspecimens.7.2.6 The thickness of the conditioned insulation shall bemeasured by the same method
39、used to measure the initialthickness.7.2.7 The box containing the conditioned insulation shall bedropped five times onto a solid concrete floor from a height of6 0/+1/2 in. (150 0/+13 mm). The average thickness of theinsulation shall be measured after five drops using the methodused to measure the i
40、nitial thickness.7.2.8 The insulation shall be removed from the box andweighed to within 0.01 lb (5 g). This is weight M4.7.3 CalculationsAll of the following are inside dimen-sions:L = the length of the box, in. (mm)W = the width of the box, in. (mm)M1= the weight of the empty box in lbs (g)M2= the
41、 weight of the box and insulation at installation inlbs (g)M3= the weight of the box and insulation after conditioningin lbs (g)M4= the weight of the conditioned insulation in lbs (g)T1= the initial thickness of the insulation, in. (mm)T2= the thickness of the insulation after conditioning , in.(mm)
42、T3= the thickness of the insulation after five drops, in. (mm)Weight of water added during installation = M2M3lbs (g)percent water added during installation (dry basis) = (M2M3)100/M4V = volume of insulation before dropping = LWT2/1728ft3or (LWT2/1109(m3)D = density of dry “stabilized” product = M4/
43、V lb/ft3or(M4/1000V (kg/m3)S1= % shrinkage = (T1T2)100/T1S2= % settling = (T2T3)100/T27.4 Report:7.4.1 Test material identification,7.4.2 The dimensions of the drop box,7.4.3 The thickness tested,7.4.4 The percentage water added (dry basis),7.4.5 The density of the dry-stabilized product,7.4.6 The p
44、ercent shrinkage,7.4.7 The percent settling.7.5 Precision and Bias:7.5.1 The precision of this test method is based on aninterlaboratory study (ILS) of Specification C1497 conductedin 2009. Two laboratories measured the density, settling, andshrinkage of two different materials, in three size variat
45、ions.Every “test result” represents an individual determination.Each laboratory was asked to submit three replicate test results,from a single operator, for each analysis and material type.Except for the limited number of reporting laboratories andmaterials tested, Practice E691 was followed for the
46、 design andanalysis of the data.57.5.1.1 Repeatability Limit (r)Two test results obtainedwithin one laboratory shall be judged not equivalent if theydiffer by more than the “r” value for that material; “r”istheinterval representing the critical difference between two testresults for the same materia
47、l, obtained by the same operatorusing the same equipment on the same day in the samelaboratory.(1) Repeatability limits are listed in Tables 1-3 below.7.5.1.2 Reproducibility Limit (R)Two test results shall bejudged not equivalent if they differ by more than the “R” valuefor that material; “R” is th
48、e interval representing the criticaldifference between two test results for the same material,obtained by different operators using different equipment indifferent laboratories.5Supporting data have been filed at ASTM International Headquarters and maybe obtained by requesting Research Report RR:C16
49、-1039.TABLE 1 Density (lbs per f3)Flame Retardant Additives AverageARepeatability Standard Deviation Repeatability LimitxSrr5 inch boxBoric acid 1.966 0.088 0.246Boric acid and ammonium sulfate 1.678 0.054 0.1527.5 inch boxBoric acid 2.022 0.063 0.175Boric acid and ammonium sulfate 1.792 0.038 0.10710 inch boxBoric acid 2.031 0.155 0.434Boric acid and ammonium sulfate 1.848 0.012 0.034AThe average of the laboratories calculated averages.C1497 163(1) Reproducibility limits cannot accurately be determinedwith data from fewer th
