1、Designation: C1104/C1104M 00 (Reapproved 2006) C1104/C1104M 13Standard Test Method forDetermining the Water Vapor Sorption of Unfaced MineralFiber Insulation1This standard is issued under the fixed designation C1104/C1104M; the number immediately following the designation indicates the yearof origin
2、al 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.1. Scope1.1 This test method covers the determination of the amount of water
3、vapor sorbed by mineral fiber insulation exposed to ahigh-humidity atmosphere. This test method is applicable only to fibrous base material and binder. The results obtained by this testmethod cannot be used in describing faced products, since the facing is not tested by using this test method.1.2 Th
4、e water vapor sorption characteristics of materials may be affected by conditions such as elevated temperatures orchemical exposures. Values obtained as a result of this test method may not adequately describe the water vapor sorptioncharacteristics of materials subjected to these conditions.1.3 The
5、 values stated in either SI units or inch-pound units are to be regarded separately as standard. The values stated in eachsystem may not be exact equivalents; therefore, each system shall be used independently of the other. Combining values from thetwo systems may result in non-conformance with the
6、standard.1.4 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibilityof the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatorylimitations prior to use.2. Refer
7、enced Documents2.1 ASTM Standards:2C167 Test Methods for Thickness and Density of Blanket or Batt Thermal InsulationsC302 Test Method for Density and Dimensions of Preformed Pipe-Covering-Type Thermal InsulationC303 Test Method for Dimensions and Density of Preformed Block and BoardType Thermal Insu
8、lationC390 Practice for Sampling and Acceptance of Thermal Insulation LotsE691 Practice for Conducting an Interlaboratory Study to Determine the Precision of a Test Method3. Terminology3.1 Definitions of Terms Specific to This Standard:3.1.1 The term sorption has been adopted for this test method, s
9、ince mineral fiber insulation may absorb water within its bulkwhen viewed macroscopically, while it adsorbs water onto individual fibers on a microscopic scale.(1) sorptionrefers to the taking up and holding of matter by other matter by various processes such as absorption andadsorption.(2) absorpti
10、onrefers to the taking up of matter in-bulk by other matter; for example, the penetration of substances into thebulk of another solid or liquid.(3) adsorptionrefers to surface retention or adhesion of an extremely thin layer of molecules to the surfaces of solids orliquids with which they are in con
11、tact.4. Summary of Test Method4.1 The insulation is dried to a constant weight and exposed to a high-humidity atmosphere for 96 h. The amount of watersorbed from the vapor phase is the difference in specimen weights, and is expressed in either weight or volume percent.1 This test method is under the
12、 jurisdiction of Committee C16 on Thermal Insulation and is the direct responsibility of Subcommittee C16.33Insulation Finishes andMoisture.Current edition approved June 1, 2006Jan. 15, 2013. Published August 2006January 2013. Originally approved in 1988. Last previous edition approved in 20002006 a
13、sC1104/C1104M 00.C1104/C1104M 00(2006). DOI: 10.1520/C1104_C1104M-00R06.10.1520/C1104_C1104M-13.2 For referenced ASTM standards, visit the ASTM website, www.astm.org, or contact ASTM Customer Service at serviceastm.org. For Annual Book of ASTM Standardsvolume information, refer to the standards Docu
14、ment Summary page on the ASTM website.This document is not an ASTM standard and is intended only to provide the user of an ASTM standard an indication of what changes have been made to the previous version. Becauseit may not be technically possible to adequately depict all changes accurately, ASTM r
15、ecommends that users consult prior editions as appropriate. In all cases only the current versionof the standard as published by ASTM is to be considered the official document.Copyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States15. Signifi
16、cance and Use5.1 The sorption of water can result in an increase in weight and a resultant potential degradation of the properties of theinsulation.6. Apparatus6.1 Air-circulating oven, capable of maintaining a temperature between 102 and 121C 215 and 250F.6.2 Desiccator, with calcium chloride as a
17、desiccant.6.3 Scale, accurate to 60.1 % of specimen weight.6.4 Environmental test chamber, capable of maintaining a temperature of 49 6 2C 120 6 3F and a relative humidity of 956 3 %.6.5 Steel rule, graduated in 1 mm or 0.05 in. intervals with depth gauge as described in Test Methods C167.6.6 Sealab
18、le polyethylene sample bags of a size large enough to accommodate the test specimens (for blanket, board, or pipethermal insulations).6.7 Non-water-sorbing, non-corrosive tray with tight-fitting lid measuring at least 15 by 15 cm 6 by 6 in. (for loose-fillinsulations).7. Sampling and Test Specimens7
19、.1 Three specimens shall be tested, unless otherwise stated in the appropriate material specification. These are to be obtainedfrom one representative package of insulation. Sampling techniques should be in accordance with Practice C390.7.2 For blanket and board products, the test specimen shall be
20、of a size that can be conveniently tested in the environmentalchamber, but not smaller than 15 by 15 cm 6 by 6 in. by the full sample thickness. For pipe insulation products, use a 15 cm6 in. length and as much of the circumference as can be conveniently tested. For loose-fill products, the test spe
21、cimen shall consistof sufficient quantity of the material to fill a preweighed container measuring at least 15 by 15 cm 6 by 6 in., to a nominal depthat its nominal density.7.3 The insulation shall be tested without facing or jacketing, unless otherwise agreed upon by the purchaser and supplier, oru
22、nless otherwise specified by the appropriate material specification.8. Procedure A, for Blanket, Board, and Pipe Insulation Products8.1 If it is necessary to determine volume percent, measure the dimensions and calculate the density of the specimens using8.1.1, 8.1.2, or 8.1.3.8.1.1 For blanket prod
23、ucts, measure the length and width of the specimens using a steel rule. Measure the weight of thespecimens. Measure the thickness of the specimens by means of the depth gage as stated in Test Method C167. Calculate thedensity of the specimens.8.1.2 For board products, measure the dimensions of the s
24、pecimens using the test methods stated in Test Method C303.8.1.3 For pipe products, measure the dimensions of the specimens using the test methods stated in Test Method C302.8.1.4 Calculate the volume of the specimens. If requested, the volume may be based on the nominal thickness rather than themea
25、sured thickness, but this must be included in the report.8.2 Determine the moisture-free weight of each specimen in the manner described in 8.2.1.8.2.1 Weigh the specimen. Place the specimen in an air-circulating oven at a temperature of 102 to 121C 215 to 250F fora minimum of 2 h. (See Note 1.) Coo
26、l the specimen to room temperature in a desiccator and reweigh. Repeat the process untilsuccessive weighings agree to within 0.2 % of the specimen weight obtained in the latest weighing. Record this weight as themoisture-free weight.NOTE 1When drying at the specified temperature has been shown to ad
27、versely affect the insulation, the specimen may be dried to moisture-freeweight in a desiccator at room temperature. However, the drying time between successive weighings should then be extended to at least 24 h.8.3 Bring the specimens to a uniform temperature in an oven of not less than 60C 140F an
28、d then transfer to theenvironmental chamber. Either suspend the specimens or place on a grid within the chamber in order to ensure air circulationaround the specimens. Protect the specimens from condensate dripping from the chamber ceiling by using a slanting false roofimmediately above the specimen
29、s.8.4 Allow the specimens to remain in the environmental chamber for 966 4 h at a temperature of 49 6 2C 1206 3F andat a relative humidity of 95 6 3 %. Then place each specimen in its own pre-weighed sample bag, seal the bag, and remove fromthe chamber. Allow the bag containing the specimens to cool
30、 to room temperature and weigh. Subtract the bag weight from theobtained weight. Record this as the specimen weight after testing.C1104/C1104M 1329. Procedure B, for Loose-Fill Insulation Products9.1 If it is necessary to determine volume percent, measure the length and width of the pre-weighed samp
31、le trays, using a steelrule. Apply the insulation at its nominal or requested thickness and density by pouring or blowing it into the sample tray. Measurethe thickness of the specimens by means of a depth gauge. Calculate the volume of the specimens.9.2 Determine the moisture-free weight of each spe
32、cimen in the manner described in 9.2.1.9.2.1 Weigh the sample tray containing the specimen. Place the specimen in an air-circulating oven at a temperature of 102to 121C 215 to 250F for a minimum of 2 h. (See Note 1.) Place the pre-weighed lid on the sample tray, cool the specimento room temperature,
33、 and reweigh. Remove the lid and repeat the process until successive weighings agree to within 0.2 % of thespecimen weight obtained in the latest weighing. Subtract the tray weight from the total obtained weight of the tray and specimen.Record this weight as the moisture-free weight of the specimen.
34、9.3 Remove the lids and bring the specimens to a uniform temperature of not less than 60C 140F, and then transfer to theenvironmental chamber. Place the trays horizontally within the chamber and place the lids next to the trays. Protect the specimensfrom condensate dripping from the chamber ceiling
35、by using a slanting false roof immediately above the specimens.9.4 Allow the specimens to remain in the environmental chamber for 96 6 4 h at a temperature of 49 6 2C 120 6 3Fand at a relative humidity of 95 6 3 %. Then place the lid on each sample tray and remove from the chamber. Allow the traycon
36、taining the specimen to cool to room temperature and weigh. Subtract the tray weight from the obtained weight. Record thisas the specimen weight after testing.10. Calculation10.1 Calculate the percentage water vapor sorption by weight and by volume using Eq 1, Eq 2, and Eq 3.10.1.1 Water sorbed from
37、 the vapor phase,weight percent5W22W1!W13100 (1)where:W2 = specimen weight after test, andW1 = moisture-free weight of specimen.10.1.2 Water sorbed from the vapor phase,volume percent5W22W1!31001 g/cm3!3V (2)where:W2 and W1 = are in grams,V = is the samples volume in cm3, and1 g/cm3 = is the density
38、 of water.10.1.3 An alternative method of calculating volume percent is shown in Eq 3:Water sorbed from the vapor phase, volume percent (3)5Water sorption, weight percent!3Sample density!Density of waterwhere the sample density and the density of water are in the same units, such as g/cm3, lb/ft3, o
39、r lb/in.311. Report11.1 The report shall include the following:11.1.1 Name and any additional identification of the material tested,11.1.2 Thickness of the material,11.1.3 Number of specimens tested,11.1.4 Applied density (for loose fill only),Density,11.1.4.1 Measured density (blanket, board, and p
40、ipe product),11.1.4.2 Applied density (for loose fill only),11.1.5 The average percent water sorption by weight for the specimens, and11.1.6 The average percent water sorption by volume for the specimens, if requested. Note that when reporting volume percent,the weight percent and specimen density m
41、ust also be reported.C1104/C1104M 13312. Precision and Bias12.1 Interlaboratory Test ProgramInterlaboratory studies were run in which randomly drawn test specimens of two materialswere tested for moisture sorption. The density of the two materials was 16 kg/m3 1 lb/ft3) and 50 kg/m3 3.2 lb/ft3. Prac
42、tice E691was followed for the design and analysis of the data. all oof the test specimens were provided by a single laboratory. the detailsare given in ASTM Research Report NO. C1610243.12.2 Test Results The precision information given below in units of measurements noted is for the comparision of t
43、est results.12.3 PrecisionPrecision:Light DensityMineral FiberHeavyDensityMineral FiberNumber of Laboratories 3 3Sorption by Weight, Average Value 2.1% 0.9%95% repeatability limit (within laboratory) 0.60% 0.18%95% reproducibility limit (betweenlaboratories)0.88% 0.52%Sorption by Volume, Average Val
44、ue 0.03% 0.05%95% repeatability limit (within laboratory) 0.01% 0.01%95% reproducibility limit (betweenlaboratories)0.02% 0.03%12.4 BiasNo information can be presented on the bias of the procedure in Test Method C1104 for measuring moisture sorptionbecause no material having an accepted reference va
45、lue is available.13. Keywords13.1 mineral fiber insulation; water vapor sorptionASTM International takes no position respecting the validity of any patent rights asserted in connection with any item mentionedin this standard. Users of this standard are expressly advised that determination of the val
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