1、Designation: C 1149 08Standard Specification forSelf-Supported Spray Applied Cellulosic Thermal Insulation1This standard is issued under the fixed designation C 1149; the number immediately following the designation indicates the year oforiginal adoption or, in the case of revision, the year of last
2、 revision. A number in parentheses indicates the year of last reapproval. Asuperscript epsilon () indicates an editorial change since the last revision or reapproval.1. Scope1.1 The specification covers the physical properties ofself-supported spray applied cellulosic fibers intended for useas therm
3、al insulation or an acoustical absorbent material, orboth.1.2 This specification covers chemically treated cellulosicmaterials intended for pneumatic applications where tempera-tures do not exceed 82.2C and where temperatures willroutinely remain below 65.6C.1.2.1 Type IMaterial applied with liquid
4、adhesive andsuitable for either exposed or enclosed applications.1.2.2 Type IIMaterials containing a dry adhesive that isactivated by water during installation and intended only forenclosed or covered applications.1.3 This is a material specification only and is not intendedto deal with methods of a
5、pplication that are supplied by themanufacturer.1.4 The values stated in SI units are to be regarded asstandard. No other units of measurement are included in thisstandard.1.5 This standard does not purport to address all of thesafety concerns, if any, associated with its use. It is theresponsibilit
6、y of the user of this standard to establish appro-priate safety and health practices and determine the applica-bility of regulatory limitations prior to use.2. Referenced Documents2.1 ASTM Standards:2C 168 Terminology Relating to Thermal InsulationC 177 Test Method for Steady-State Heat Flux Measure
7、-ments and Thermal Transmission Properties by Means ofthe Guarded-Hot-Plate ApparatusC 518 Test Method for Steady-State Thermal TransmissionProperties by Means of the Heat Flow Meter ApparatusC 739 Specification for Cellulosic Fiber Loose-Fill ThermalInsulationC 1363 Test Method for Thermal Performa
8、nce of BuildingMaterials and Envelope Assemblies by Means of a HotBox ApparatusE84 Test Method for Surface Burning Characteristics ofBuilding MaterialsE 605 Test Methods for Thickness and Density of SprayedFire-Resistive Material (SFRM) Applied to StructuralMembersE 736 Test Method for Cohesion/Adhe
9、sion of Sprayed Fire-Resistive Materials Applied to Structural MembersE 759 Test Method for Effect of Deflection on SprayedFire-Resistive Material Applied to Structural MembersE 859 Test Method for Air Erosion of Sprayed Fire-Resistive Materials (SFRMs) Applied to Structural Mem-bers3. Terminology3.
10、1 DefinitionsDefinitions in Terminology C 168 shallapply in this specification.3.2 Definitions of Terms Specific to This Standard:3.2.1 constant massno change in successive weighings inexcess of 0.5 % of specimen mass taken at 4-h intervals unlessotherwise specified.3.2.2 curedthe state of the finis
11、hed product after it hasachieved constant mass.3.2.3 curingthe process in which the liquid vehicle isremoved. Normally achieved in ambient building conditionswith forced air convection to hasten the evaporation process.3.2.4 prepared samplesamples prepared in accordancewith Section 5 and cured to co
12、nstant mass prior to conductingthe specific tests. The prepared samples, after reaching constantmass, as defined in 3.2.1, shall have a density within 610 % ofthe manufacturers recommended design density.3.2.5 self supportinga product that can be tested by thecriteria imposed by this specification a
13、nd that will require nosupport other than itself or the substrate to which it is attached.1This specification is under the jurisdiction of ASTM Committee C16 onThermal Insulation and is the direct responsibility of Subcommittee C16.23 onBlanket and Loose Fill Insulation.Current edition approved Dec.
14、 1, 2008. Published January 2009. Originallyapproved in 1990. Last previous edition approved in 2006 as C 1149-061.2For referenced ASTM standards, visit the ASTM website, www.astm.org, orcontact ASTM Customer Service at serviceastm.org. For Annual Book of ASTMStandards volume information, refer to t
15、he standards Document Summary page onthe ASTM website.1Copyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.3.2.6 specimendefinition of specimen as used in thisspecification shall be the same as that for prepared sample in3.2.4.3.2.7 spray
16、ed fiberchemically treated cellulosic materials,that are pneumatically conveyed and mixed with water oradhesive, or both, at the spray nozzle and become self-supporting when cured.4. Physical Properties4.1 Materials and Manufacture:4.1.1 The basic material shall consist of virgin or recycledwood bas
17、ed cellulosic fiber.4.1.2 Suitable chemicals shall be introduced to provideflame resistance, improved processing, adhesive/cohesiveproperties, and handling and application characteristics.4.1.3 The basic material shall be processed into a formsuitable for installation by pneumatic conveying equipmen
18、tand the simultaneous mixing with liquid at the spray nozzle.4.2 DensityType I and Type II samples shall be within610 % of the manufacturers stated values when tested inaccordance with 6.1.4.3 Thermal ResistanceType I and Type II samples shallbe within 610 % of the manufacturers stated values whente
19、sted in accordance with 6.4.4.4 Surface Burning CharacteristicsType I and Type IIsamples shall have a maximum flame spread rating of 25 anda maximum smoke developed rating of 50 when tested inaccordance with 6.2.4.5 Adhesive/Cohesive Strength:4.5.1 Type IThe applied material shall have a minimumadhe
20、sive/cohesive bond strength per unit area of five times theweight of the material under the test plate when tested inaccordance with Test Method E 736.4.5.2 Type IIThe applied product shall have a minimumadhesive/cohesive bond strength per unit area of two times theweight of the material under the t
21、est plate when tested inaccordance with Test Method E 736.4.6 Smoldering CombustionType I and Type II products,when tested in accordance with 6.5, shall have a weight loss nogreater than 15 % of the specimen weight and shall exhibit noevidence of flaming.4.7 Fungi ResistanceType I and Type II produc
22、ts, whentested in accordance with 6.6, shall not promote more fungalgrowth than the control in at least two of the three replicatespecimens. (See Specification C 739, 1986 edition, paragraph5.4.)4.8 CorrosionType I and Type II products, when tested inaccordance with 6.7, shall demonstrate no perfora
23、tions in the3-mil metal coupons when observed in close proximity to a40-W appliance light bulb. Notches extending less than 3 mminto the coupon edge can be ignored.4.9 Moisture Vapor AbsorptionMoisture absorption ofType I and Type II products shall be no more than 15 % whentested in accordance with
24、6.8.4.10 OdorType I and Type II, applied products shall haveno strong, objectionable odor when tested in accordance with6.9.4.11 Flame Resistance Permanency:34.11.1 The importance of an insulations product to main-tain its fire retardant characteristics is recognized. A task groupis currently studyi
25、ng methods to ascertain if there is a long termdeterioration of fire performance characteristics of celluloseinsulation. Should the need for a permanency test method bedetermined by this task group and a test method developed andfinalized, it will become a part of this specification.4.12 Additional
26、Characteristics for Type I Product:4.12.1 Substrate DeflectionType I applied product shallnot spall, crack, or delaminate when tested in accordance with6.11 of this specification.4.12.2 Air ErosionReport the results of the air erosion testdescribed in 6.10 of this specification for Type 1 appliedpro
27、duct.5. Specimen Preparation5.1 Prepare specimens using manufacturers recommendedequipment and procedures and at manufacturers maximumrecommended thickness. Cure specimens to constant mass at23 6 3C and 50 6 5 % relative humidity unless otherwisespecified in a specific test procedure. All specimens
28、shall bewithin 610 % of the manufacturers recommended installationdensity.6. Test Methods6.1 DensityDensity of each sample shall be determined inaccordance with Test Methods E 605.6.2 Surface Burning CharacteristicsThe surface burningcharacteristics of Type I and Type II products shall be deter-mine
29、d in accordance with Test Method E84.6.3 Adhesive/Cohesive StrengthThe adhesive/cohesivestrength of the spray applied fiber insulation shall be deter-mined in accordance with Test Method E 736.6.4 Thermal ResistanceSamples shall be prepared as inSection 5. The thermal resistance of the spray applied
30、 cellulo-sic fiber insulation shall be as determined by the average offour specimens tested in accordance with Test Methods C 177,C 518, or C 1363. The referee method shall be Test MethodC 177. When Test Method C 518 or C 177 is used, the surfaceirregularities will be trimmed to provide uniform thic
31、kness.When the hot box method is used, the test will be on theinsulation component only or alternatively; if tested as asystem, the results reported shall include all components ofsystem evaluated.6.5 Smoldering Combustion:6.5.1 ScopeThis test method determines the resistance ofthe insulation to smo
32、lder, under specific laboratory conditions.6.5.2 Significance and UseInsulation materials thatreadily smolder could have an adverse effect on the surround-ing structure in the event of exposure to fire or heat sources.6.5.3 Apparatus for Smoldering Combustion Test:6.5.3.1 Specimen HolderThe specimen
33、 holder shall be anopen-top 203 6 2 mm square box, 100 6 2 mm in height,fabricated from 18 United States standard gage stainless steel3This statement on flame resistant permanency was added in March 1987.C1149082sheet with the vertical edges of the box overlapped, not toexceed 7 mm in seam width, an
34、d joined to be watertight.6.5.3.2 Specimen Holder PadDuring the test the speci-men holder shall rest upon a pad of unfaced glass fiberboardhaving dimensions equal to the bottom of the specimen holder.The glass fiberboard shall be approximately 25 mm thick, witha density of 40 6 4 kg/m.6.5.3.3 Labora
35、tory Scales, capable of weighing the speci-men holder and sample with an accuracy of 6 0.2 g.6.5.3.4 Drill Press, with vertical movement capabilities inexcess of 114 mm and fitted with an 8 mm diameter drill bitwith a minimum usable length of 102 mm when chucked.6.5.3.5 Ignition SourceThe ignition s
36、ource shall be acigarette without filter tip made from natural tobacco, 85 6 2mm long with a tobacco packing density of 0.27 6 0.0020g/cm and a total weight of 1.1 6 0.2 g.6.5.4 SamplingThree specimens per sample shall betested.6.5.5 ConditioningSample shall be allowed to dry at 23 63C and 50 6 5 %
37、relative humidity until constant mass isachieved.6.5.6 Test ChamberA draft-protected chamber or hoodwith a suitable exhaust system to remove products of combus-tion. Air velocities shall not exceed 0.5 m/s in the vicinity ofthe specimen surface when measured by a hot wire anemom-eter.6.5.7 Procedure
38、:6.5.7.1 Determine tare weight of specimen holder andfiberglass shim (after drilling) to nearest 0.2 g and recordweight (see 6.5.7.4).6.5.7.2 After conditioning in accordance with 6.5.5, cutspecimens 203 by 203 6 2 mm square to fit snugly inside thespecimen holder.6.5.7.3 After cutting specimen to t
39、he correct size, drill ahole through the thickness of the specimen at the center. Use adrill press and steel drill bit described in 6.5.3.4.6.5.7.4 Insert drilled specimen level with top edge ofspecimen holder. If required, provide a shim of unfacedfiberglass (approximate 8.01 kg/m3) under the speci
40、men that iscut to fit holder and center drilled to align with specimen.Carefully cut excess material extending above the top edge ofthe specimen holder. A reciprocating electric knife or saw hasbeen found suitable. Take care that the center drilled hole isfree of debris and if the shim pad is used,
41、that the hole isaligned through specimen and pad.6.5.7.5 Weigh specimen and specimen holder, subtractweight of empty specimen holder and fiberglass shim if used.Record this as the starting weight of the specimen, (W1).Calculate the density of the specimen to the nearest 1.6 kg/m3;density shall be wi
42、thin 6 10 % of the manufacturers designdensity.6.5.7.6 With the specimen in the specimen holder andplaced on the insulation pad, insert well-lighted cigarette,burned no more than 8 mm, into the formed cavity, with thelighted end upward and flush with the specimen surface. Placethe specimen in the te
43、st chamber and allow burning of thecigarette to proceed undisturbed for at least 1 h, after which,allow specimen to remain until there is no evidence of heat orsmoke and the bottom of the specimen holder is cool to thetouch.6.5.7.7 After the specimen has cooled to less than 25C,weigh to the nearest
44、0.2 g and subtract the tare weightdetermined in 6.5.7.1 to arrive at the final net weight, (W2).6.5.8 CalculationCalculate percent weight loss as fol-lows:WL 5 $W12 W2%/W1! 3 100 (1)where:WL = weight loss, %,W1= weight of specimen before test, g, andW2= final weight of specimen at completion of test
45、, g.6.5.9 RetestIf all three specimens pass, the insulationpasses. If more than one fail, the insulation is rejected. If anyone of the three specimens fails, conduct a retest consisting ofthree additional specimens. If one of the three retest specimensfails, the insulation is rejected.6.5.10 Results
46、 of test: Pass/Fail.6.5.11 Precision and Bias The precision and bias of this testmethod has not been determined.6.6 Fungi Resistance:6.6.1 ScopeThis test method covers the determination ofthe amount of resistance to the growth of fungi present inself-supported spray applied cellulosic thermal/acoust
47、ical in-sulation.6.6.2 Significance and UseIt is necessary to ensure thatspray applied cellulosic insulation materials support no greatergrowth of fungi than the surrounding materials of the structurebeing insulated. Normally the structural materials in questionwill be wood. Excessive growth of fung
48、i on the insulationcould result in loss of efficiency of the insulation, damage tothe structure, and possible health hazards to the occupants ofthe insulated structure. The purpose of this test method is toprovide an evaluation of the potential for fungi growth presentin the insulation material rela
49、tive to common wood used forframing.6.6.3 ApparatusThe apparatus required to conduct thistest method consists of chambers or cabinets together withauxiliary instrumentation capable of maintaining the specifiedconditions of temperature and humidity. The apparatus shall beconstructed to keep light from entering the chamber during thetest period.6.6.4 SamplingUnless specified by the purchaser, onespecimen shall be selected from each of three different bags orother packages of insulation, as applicable.6.6.5 ProcedurePrepare mineral s
