ASTM C1115-2017 Standard Specification for Dense Elastomeric Silicone Rubber Gaskets and Accessories《密实弹性体硅橡胶衬垫和附件的标准规格》.pdf

1、Designation: C1115 06 (Reapproved 2011)C1115 17Standard Specification forDense Elastomeric Silicone Rubber Gaskets andAccessories1This standard is issued under the fixed designation C1115; the number immediately following the designation indicates the year oforiginal adoption or, in the case of revi

2、sion, the year of last 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 This specification describes products composed of dense elastomeric silicone rubber that are fabrica

3、ted into gaskets andaccessories (such as setting blocks, spacers, and shims) for use in sealing and glazing applications in building construction. Theseproducts are used to seal or serve as components of compression sealing systems between mechanically restrained surfaces inbuilding construction and

4、 also as components in structural silicone sealant glazing systems.1.2 The following precautionary statement pertains only to the test method portion, Section 10, of this specification.Thisstandard does not purport to address all of the safety concerns, if any, associated with its use. It is the res

5、ponsibility of the userof this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations priorto use.1.2 The following precautionary statement pertains only to the test method portion, Section 10, of this specification. Thisstandard does

6、not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the userof this standard to establish appropriate safety, health, and environmental practices and determine the applicability of regulatorylimitations prior to use.1.3 Test Method C1166, a

7、s referenced in this specification, should be used to measure and describe the properties of materials,products, or assemblies in response to heat and flame under controlled laboratory conditions and should not be used to describeor appraise the fire hazard or fire risk of materials, products, or as

8、semblies under actual fire conditions. However, results of thistest may be used as elements of a fire risk assessment that takes into account all of the factors which are pertinent to an assessmentof the fire hazard of a particular end use.1.4 The values stated in metric (SI) units are to be regarde

9、d as the standard. The inch-pound values given in parentheses areprovided for information purposes only.1.5 The committee with jurisdiction over this standard is not aware of any comparable standards published by otherorganizations.1.6 This international standard was developed in accordance with int

10、ernationally recognized principles on standardizationestablished in the Decision on Principles for the Development of International Standards, Guides and Recommendations issuedby the World Trade Organization Technical Barriers to Trade (TBT) Committee.2. Referenced Documents2.1 ASTM Standards:2C717

11、Terminology of Building Seals and SealantsC1087 Test Method for Determining Compatibility of Liquid-Applied Sealants with Accessories Used in Structural GlazingSystemsC1166 Test Method for Flame Propagation of Dense and Cellular Elastomeric Gaskets and AccessoriesD395 Test Methods for Rubber Propert

12、yCompression SetD412 Test Methods for Vulcanized Rubber and Thermoplastic ElastomersTensionD573 Test Method for RubberDeterioration in an Air Oven1 This specification is under the jurisdiction of ASTM Committee C24 on Building Seals and Sealants and is the direct responsibility of Subcommittee C24.7

13、3 onCompression Seal and Lock Strip Gaskets.Current edition approved June 1, 2011Sept. 15, 2017. Published August 2011October 2017. Originally approved in 1991. Last previous edition approved in 20062011 asC1115 06.C1115 06 (2011). DOI: 10.1520/C1115-06R11.10.1520/C1115-17.2 For referencedASTM stand

14、ards, visit theASTM website, www.astm.org, or contactASTM Customer Service at serviceastm.org. For Annual Book of ASTM Standardsvolume information, refer to the standards Document Summary page on the ASTM website.This document is not an ASTM standard and is intended only to provide the user of an AS

15、TM 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 recommends that users consult prior editions as appropriate. In all cases only the current versionof the standard as published

16、 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 States1D624 Test Method for Tear Strength of Conventional Vulcanized Rubber and Thermoplastic ElastomersD792 Test Methods for Density and Spec

17、ific Gravity (Relative Density) of Plastics by DisplacementD925 Test Methods for Rubber PropertyStaining of Surfaces (Contact, Migration, and Diffusion)D1149 Test Methods for Rubber DeteriorationCracking in an Ozone Controlled EnvironmentD1566 Terminology Relating to RubberD2137 Test Methods for Rub

18、ber PropertyBrittleness Point of Flexible Polymers and Coated FabricsD2240 Test Method for Rubber PropertyDurometer HardnessD3182 Practice for RubberMaterials, Equipment, and Procedures for Mixing Standard Compounds and Preparing StandardVulcanized Sheets2.2 Rubber Manufacturers Association (RMA) St

19、andard:RubberRubber Handbook, Fourth Ed., December 198432.3 Other Documents:Uniform Freight Classification Rules4National Motor Freight Classification Rules53. Terminology3.1 Refer to Terminology C717 for definitions of the following terms used in this specification: compound, compression gasket,edg

20、e spacer, elastomer, elastomeric, expansion gasket, gasket, hardness, seal, setting block, shim spacer, and spacer.3.2 Refer to Terminology D1566 for definitions of the following terms used in this specification: compression set, ultimateelongation, tear strength, tensile strength, and polymer.4. Cl

21、assification4.1 The products described by this specification are classified by type, hardness, class, and surface.4.2 Type:4.2.1 Type T, Tear ResistantIn general these products have a higher level of tear resistance, midrange heat agingcharacteristics, midrange compression set resistance, and 30 to

22、70 durometer hardness. This type is applicable where finishedproducts are intended to bridge or to cover a space (for example, expansion joint gaskets), or where high tear strength is requireddue to conditions of exposure or usage.4.2.2 Type C, Compression Set ResistantIn general, these products hav

23、e a lower level of tear resistance, above midrange heataging characteristics, a high level of compression set resistance, and 30 to 85 durometer hardness. This type is applicable wherefinished products are used as compression gaskets, or where low compression set is required due to conditions of exp

24、osure orusage; and as settingblocks, spacers, shims, or other accessories in glazing and sealing systems.4.3 HardnessEach type described in 4.2 is subdivided into various hardnesses, based on nominal durometer hardness asshown in Table 1 and Table 2. For example, Grade H3 is 30 durometer.4.4 Class:4

25、.4.1 Flame propagation characteristics of the finished products can be varied depending on the degree of exposure, expectedusage, and intended durability desired. Products described by this specification shall be classified as to flame propagation asfollows:4.4.1.1 Class FResistance to flame propaga

26、tion is required.4.4.1.2 When no flame propagation resistance is required, no class designation should be used.4.5 Surface:4.5.1 Consideration of product surface requirements may be necessary. During the production of these products the use ofvarious lubricants, release agents, dusting agents, and o

27、ther solutions may be required. It may be necessary after vulcanization toremove these materials from the surfaces of the product because of appearance, fabrication, or usage requirements. All productsdo not require removal of those materials or removal to the same degree of cleanliness.4.5.2 Produc

28、ts may also be required to develop adhesion or to not develop adhesion to sealants with which they are in contact.4.5.3 Products described by this specification shall be classified as to surface condition as follows:4.5.3.1 Surface S1The surface of the product shall be smooth, clean, free from any f

29、oreign matter, and shall not allowadhesion of sealants (see Note 1).4.5.3.2 Surface S2The surface of the product shall be smooth, clean, free from any foreign matter, and shall allow adhesionof sealants (see Note 1).NOTE 1Applied treatments, such as dusting or coating to the adhesion surface may be

30、necessary to meet this requirement.3 .Available from Rubber Manufacturers Association (RMA), 1400 K St., NW, Suite 900, Washington, DC 20005, http:/www.rma.org.4 Available from Western Railroad Assn, Department of Services and Supply, Room 1150, 222 S. Riverside Plaza, Chicago, IL 60606-5945.5 Avail

31、able from National Motor Freight Assn, 2200 Mill Road, Alexandria, VA 22314.C1115 1724.5.3.3 Surface S3The product shall have a surface that is smooth, clean, and free from any foreign matter.4.5.4 Products not requiring special cleaning for removal of processing agents and materials should not be a

32、ssigned a surfacedesignation code.4.6 The following is an illustration of the use of the classification system for a line call-out. Expansion gaskets shall be ASTMC1115, TH5FS3.Type Hardness Class SurfaceT H5 F S3TABLE 1 Requirements for Dense Elastomeric Silicone Rubber Gaskets and Accessories, Typ

33、e TTear ResistantProperty Hardness Test Method3 4 5 6 7Low temperature flexibility A A A A A D2137Hardness, Type A durometer, 5points30 40 50 60 70 D2240Compression set, max % 30 30 30 30 30 D395Tensile strength, min, MPa (psi) 7 (1015) 8 (1160) 8 (1160) 8 (1160) 7 (1015) D412Ultimate elongation, mi

34、n % 500 500 500 400 200 D412Heat aging D573Hardness change, max durometerpoints10 10 10 10 10Tensile strength change, max % 20 20 20 20 20Ultimate elongation change, max % 30 30 30 30 30Ozone resistance B B B B B D1149(Specimen A)Tear Strength, min, kN/m (ppi) 25 (143) 25 (143) 26 (149) 26 (149) 25

35、(143) D624Flame propagationC , mm (in.) 100 (4) 100 (4) 100 (4) 100 (4) 100 (4) C1166Specific gravity D D D D D D792Staining E E E E E D925Color F F F F F GANo failure.BNo cracks at 7 magnification.CIf Class F-Resistance to flame propagation is required.DWithin 0.05 of qualified compound.EAs specifi

36、ed by purchaser (see 10.11).FAs specified by purchaser.GSee 10.12.TABLE 2 Requirements for Dense Elastomeric Silicone Rubber Gaskets and Accessories, Type CCompression Set ResistantProperty Hardness Test Method3 4 5 6 7 8 9Low temperature flexibility A A A A A A A D2137Hardness, Type A durometer, 5p

37、oints30 40 50 60 70 80 85 D2240Compression set, max % 15 15 15 15 15 20 25 D395Tensile strength, min, MPa (psi) 5 (725) 5 (725) 5 (725) 5 (725) 5 (725) 5 (725) 5 (725) D412Ultimate elongation, min, % 350 300 250 200 125 100 60 D412Heat aging D573Hardness change, max, durometerpoints05 05 05 05 05 05

38、 05Tensile strength change, max, % 15 15 15 15 15 15 15Ultimate elongation change,max, %30 30 30 30 30 30 30Ozone resistance B B B B B B B D1149(Speci-men A)Tear strength, min, kN/m (ppi) 9 (51) 9 (51) 9 (51) 9 (51) 9 (51) 9 (51) 7 (40) D624Flame propagationC , mm (in.) 100 (4) 100 (4) 100 (4) 100 (

39、4) 100 (4) 100 (4) 100 (4) C1166Specific gravity D D D D D D D D792Staining E E E E E E E D925Color F F F F F F F GANo failure.BNo cracks at 7 magnification.CIf Class F-Resistance to flame propagation is required.DWithin 0.05 of qualified compound.EAs specified by purchaser, see 10.11.FAs specified

40、by purchaser.GSee 10.12.C1115 1734.6.1 Other examples of line call-outs would be: edge spacers for structural silicone glazing shall be ASTM C1115, CH6S1;compression seal gaskets shall be ASTM C1115, CH7S2; and setting blocks shall be ASTM C1115, CH9. These examples are notto be construed as a speci

41、fication for these items.5. Materials and Manufacture5.1 The silicone rubber shall be manufactured from virgin polymer, that when properly compounded and cured, will result inan elastomer that will comply with this specification.5.2 The compound in its final shape shall be free of visible internal p

42、orosity, surface defects, and dimensional irregularities thataffect serviceability and durability.5.3 Unless otherwise specified, the compound color shall be black. If colors other than black are specified, the compound in thecolor specified shall also meet the requirements of this specification.6.

43、Dimensions and Permissible Variations6.1 Dimensions can be affected by distortions induced by conditions of storage or shipping as well as temperature and humidityvariations. Prior to measuring the product, it shall be unpacked and conditioned in an unstressed state for 24 h at 23 6 2C (736 4F) and

44、50 6 5 % relative humidity.standard conditions.6.2 Permissible variation in cross-sectional dimensions shall be as specified in Table 3 unless otherwise agreed upon betweenthe purchaser and the supplier.6.3 Tolerances for squareness and flatness are not included in this specification, due to the dif

45、ficulty of establishing meaningfullimits to satisfy a wide variety of applications. These tolerances should be as agreed upon between the supplier and purchaser.7. Requirements7.1 The physical, mechanical, and performance properties of the material shall conform to the requirements as described byTa

46、ble 1 and Table 2.8. Significance and Use8.1 This specification describes types (based on resistance to tearing and compression set), grades (based on durometerhardness), class (based on flame propagation requirements), and surfaces (based on surface characteristics) of products as listedin Section

47、4 for various applications. It is essential, therefore, that the applicable type, grade, class, and surface be specified, aswell as other options stated, so that the proper product is provided for the intended use.9. Sampling9.1 Samples for testing to the requirements of this specification shall be

48、taken from the finished product wherever possible.9.2 When the size or shape of the finished product makes it impossible to obtain the type of samples indicated by the varioustest methods, the manufacturer shall furnish a sufficient number of appropriate test slabs, strips or blocks, prepared in acc

49、ordancewith Recommended Practice D3182. The slabs, strips, or blocks shall be prepared from the same compound and shall be of acomparable state of cure as the finished product.TABLE 3 Standards for Cross-Sectional ToleranceNOTE 1Dimensional tolerances for outside diameters, insidediameters, wall thickness, width, height, and general cross-sectionaldimensions of extrusionsRubber Manufacturers AssociationARMA Class 2 Precision RMA Class 2 PrecisionDrawing Designation E2 Drawing Designation E2Dimensions (in inches) D