1、Designation: C1149 11Standard Specification forSelf-Supported Spray Applied Cellulosic Thermal Insulation1This standard is issued under the fixed designation C1149; the number immediately following the designation indicates the year oforiginal adoption or, in the case of revision, the year of last r
2、evision. 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 thermal
3、 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 ad
4、hesive 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 app
5、lication 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 theresponsibility
6、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:2C168 Terminology Relating to Thermal InsulationC177 Test Method for Steady-State Heat Flux Measure-men
7、ts and Thermal Transmission Properties by Means ofthe Guarded-Hot-Plate ApparatusC518 Test Method for Steady-State Thermal TransmissionProperties by Means of the Heat Flow Meter ApparatusC739 Specification for Cellulosic Fiber Loose-Fill ThermalInsulationC1363 Test Method for Thermal Performance of
8、BuildingMaterials and Envelope Assemblies by Means of a HotBox ApparatusE84 Test Method for Surface Burning Characteristics ofBuilding MaterialsE605 Test Methods for Thickness and Density of SprayedFire-Resistive Material (SFRM) Applied to StructuralMembersE736 Test Method for Cohesion/Adhesion of S
9、prayed Fire-Resistive Materials Applied to Structural MembersE759 Test Method for Effect of Deflection on SprayedFire-Resistive Material Applied to Structural MembersE859 Test Method forAir Erosion of Sprayed Fire-ResistiveMaterials (SFRMs) Applied to Structural Members3. Terminology3.1 DefinitionsD
10、efinitions in Terminology C168 shall ap-ply 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 finished product a
11、fter 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 constant mass p
12、rior 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 and that will
13、require nosupport other than itself or the substrate to which it is attached.3.2.6 specimendefinition of specimen as used in thisspecification shall be the same as that for prepared sample in3.2.4.1This specification is under the jurisdiction of ASTM Committee C16 onThermal Insulation and is the dir
14、ect responsibility of Subcommittee C16.23 onBlanket and Loose Fill Insulation.Current edition approved May 15, 2011. Published August 2011. Originallyapproved in 1990. Last previous edition approved in 2008 as C1149 - 08. DOI:10.1520/C1149-11.2For referenced ASTM standards, visit the ASTM website, w
15、ww.astm.org, orcontact ASTM Customer Service at serviceastm.org. For Annual Book of ASTMStandards volume information, refer to the 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
16、.7 sprayed 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 recycled
17、wood based 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
18、equipmentand 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 value
19、s whentested 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 min
20、imumadhesive/cohesive bond strength per unit area of five times theweight of the material under the test plate when tested inaccordance with Test Method E736.4.5.2 Type IIThe applied product shall have a minimumadhesive/cohesive bond strength per unit area of two times theweight of the material unde
21、r the test plate when tested inaccordance with Test Method E736.4.6 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
22、products, whentested in accordance with 6.6, shall not promote more fungalgrowth than the control in at least two of the three replicatespecimens. (See Specification C739, 1986 edition, paragraph5.4.)4.8 CorrosionType I and Type II products, when tested inaccordance with 6.7, shall demonstrate no pe
23、rforations 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
24、with 6.8.4.10 OdorType I and Type II, applied products shall haveno strong, objectionable odor when tested in accordance with6.9.4.11 Additional Characteristics for Type I Product:4.11.1 Substrate DeflectionType I applied product shallnot spall, crack, or delaminate when tested in accordance with6.1
25、1 of this specification.4.11.2 Air ErosionReport the results of the air erosion testdescribed in 6.10 of this specification for Type 1 appliedproduct.5. Specimen Preparation5.1 Prepare specimens using manufacturers recommendedequipment and procedures and at manufacturers maximumrecommended thickness
26、. Cure specimens to constant mass at23 6 3C and 50 6 5 % relative humidity unless otherwisespecified in a specific test procedure. All specimens shall bewithin 610 % of the manufacturers recommended installationdensity.6. Test Methods6.1 DensityDensity of each sample shall be determined inaccordance
27、 with Test Methods E605.6.2 Surface Burning CharacteristicsThe surface burningcharacteristics of Type I and Type II products shall be deter-mined in accordance with Test Method E84.6.3 Adhesive/Cohesive StrengthThe adhesive/cohesivestrength of the spray applied fiber insulation shall be deter-mined
28、in accordance with Test Method E736.6.4 Thermal ResistanceSamples shall be prepared as inSection 5. The thermal resistance of the spray applied cellu-losic fiber insulation shall be as determined by the average offour specimens tested in accordance with Test Methods C177,C518,orC1363. The referee me
29、thod shall be Test MethodC177. When Test Method C518 or C177 is used, the surfaceirregularities will be trimmed to provide uniform thickness.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 al
30、l components ofsystem evaluated.6.5 Smoldering Combustion:6.5.1 ScopeThis test method determines the resistance ofthe insulation to smolder, under specific laboratory conditions.6.5.2 Significance and UseInsulation materials that read-ily smolder could have an adverse effect on the surroundingstruct
31、ure 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 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 steelsheet with the vertical edges o
32、f the box overlapped, not toexceed 7 mm in seam width, and 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
33、 25 mm thick, witha density of 40 6 4 kg/m.6.5.3.3 Laboratory 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
34、102 mm when chucked.6.5.3.5 Ignition SourceThe ignition source 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.C1149 1126.5.4 SamplingThree specimens per sample shall betested.6.5.5
35、ConditioningSample shall be allowed to dry at 23 63C and 50 6 5 % 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 specim
36、en surface when measured by a hot wire anemom-eter.6.5.7 Procedure: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 sn
37、ugly inside thespecimen holder.6.5.7.3 After cutting specimen to the 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
38、shim of unfacedfiberglass (approximate 8.01 kg/m3) under the specimen 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
39、center drilled hole isfree of debris and if the shim pad is used, 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 de
40、nsity of the specimen to the nearest 1.6 kg/m3;density shall be within 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 upwar
41、d and flush with the specimen surface. Placethe specimen in the test 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 Af
42、ter the specimen has cooled to less than 25C,weigh to the nearest 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 bef
43、ore test, g, andW2= final weight of specimen at completion of test, 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 thre
44、e retest specimensfails, the insulation is rejected.6.5.10 Results 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 fung
45、i present inself-supported spray applied cellulosic thermal/acoustical 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 stru
46、ctural materials in questionwill be wood. Excessive growth of fungi 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
47、 potential for fungi growth presentin the insulation material relative 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
48、 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
49、 salts agar in accordancewith Table 1.6.6.5.1 Sterilize the mineral salts agar by autoclaving at 1216 2C for 20 min. Adjust the pH of the solution with 0.01normal NaOH solution so that after sterilization the pH is from6.0 to 6.5. Reagent grade chemicals shall be used in all tests.Unless otherwise specified, it is intended that all reagents shallconform to the specifications of the Committee on AnalyticalReagents of the American Chemical Society, where suchspecifications are available.33Reagent Chemicals, American Chemical Society
