1、Designation:D58107 Designation: D581/D581M 12Standard Specification forGlass Fiber Greige Braided Tubular Sleeving1This standard is issued under the fixed designation D581/D581M; the number immediately following the designation indicates the yearof original adoption or, in the case of revision, the
2、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 specification covers the requirements for continuous glass filament greige braided tubular sleeving and i
3、s suitable foruse as electrical insulation and for structural and mechanical applications.1.2 This specification is intended to assist ultimate users by designating the types of these products that are typical in theindustry.1.3 The values stated in either SI units or inch-pound units are to be rega
4、rded 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 standard.1.4 This standard does not purport to address all of the sa
5、fety 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. Referenced Documents2.1 ASTM Standards:2D123 Terminology Relating to Text
6、ilesD350 Test Methods for Flexible Treated Sleeving Used for Electrical InsulationD578 Specification for Glass Fiber StrandsD579 Specification for Greige Woven Glass FabricsD1059 Test Method for Yarn Number Based on Short-Length SpecimensD1423 Test Method for Twist in Yarns by Direct-CountingD1776 P
7、ractice for Conditioning and Testing TextilesD1907 Test Method for Linear Density of Yarn (Yarn Number) by the Skein MethodD3773 Test Methods for Length of Woven FabricD3775 Test Method for Warp (End) and Filling (Pick) Count of Woven FabricsD4963 Test Method for Ignition Loss of Glass Strands and F
8、abricsD7018 Terminology Relating to Glass Fiber and Its Products2.2 ANSI Standard:ANSI/ASQC Z1.4 Sampling Procedures for Inspection by Attributes33. Terminology3.1 For all terminology related to D13.18, Glass Fiber and Its Products, see Terminology D7018.3.1.1 The following terms are relevant to thi
9、s standard” braid, carrier, continuous filament yarn, greige goods, sleeving, andtubing.3.2 For all other terminology related to textiles, see Terminology D123.4. Tubing Classifications4.1 Glass fiber greige braided tubular sleeving is produced in one type and two styles within that type and uses ya
10、rns designatedas directed in Specification D578. The standard type and styles are:4.1.1 Type GGlass fiber greige braided tubular sleeving.4.1.2 Style AGlass fiber greige braided tubular sleeving having a nominal wall thickness of 0.20 mm (0.008 in.). 0.008 in.1This specification is under the jurisdi
11、ction of ASTM Committee D13 on Textiles and is the direct responsibility of Subcommittee D13.18 on Glass Fiber and its Products.Current edition approved Jan.July 1, 2007.2012. Published January 2007.August 2012. Originally approved in 1940 T. Last previous edition approved in 19992007 asD58199.D581
12、07. DOI: 10.1520/D0581-07.10.1520/D0581-12.2For 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 Document Summary page on the ASTM website.3Available from
13、American National Standards Institute, 11 W. 42nd St., 13th Floor, New York, NY 10036.1This 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
14、 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 by ASTM is to be considered the official document.Copyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Cons
15、hohocken, PA 19428-2959, United States.4.1.3 Style BGlass fiber greige braided tubular sleeving having a nominal wall thickness of 0.15 mm (0.006 in.). 0.006 in.REQUIREMENTS5. Material5.1 All yarns for braided tubular sleeving shall be electrical classification, (E glass), continuous filament glass
16、yarns, and shallfall within the chemical composition that is utilized for general applications as described in Specification D578, Section 4.2.2.Filament size shall be agreed upon between purchaser and supplier and shall meet the requirements of Specification D578, Table1 Letter Designations for Gla
17、ss Strand Filament Diameters.5.1.1 The fiber shall be free of any free alkali metal oxides, such as soda or potash, and foreign particles, dirt, and otherimpurities.6. Yarn Number6.1 The nominal yarn number of the yarns in the braided tubular sleeving shall be agreed upon between the purchaser and t
18、hesupplier. The average yarn number shall fall within the interval: nominal yarn number6 10 % of the nominal yarn number.7. Strand Construction7.1 The basis for specifying strand construction is given in Specification D578. The construction of the component strands shallbe agreed upon between the pu
19、rchaser and the supplier.8. Direction of Twist8.1 Unless otherwise agreed upon between the purchaser and the supplier, the primary twist in the singles strands shall be “Z”twist and the final twist in the plied yarns shall be “S” twist.9. Twist Level9.1 The nominal twist in the component strands and
20、 the finished yarns shall be agreed upon between the purchaser and thesupplier. The tolerances for the primary twist and the final twist shall conform to Table 1.10. Ends Per Carrier10.1 The nominal number of ends per carrier shall be agreed upon between the purchaser and the supplier. The observed
21、numberof ends per carrier shall not exceed that specified.11. Number of Carriers11.1 The nominal number of carriers shall be agreed upon between the purchaser and the supplier. The observed number ofcarriers shall not be less than that specified.12. Picks Per Unit Length12.1 The nominal number of pi
22、cks per centimetre (pickspicks per inch)inch shall be agreed upon between the purchaser andthe supplier. The observed number of picks per inch shall be within 1 pick per centimetre (33 picks per inch)inch of the specifiedvalue.13. Inside Diameter13.1 For braided tubular sleeving listed in Table 2, t
23、he nominal inside diameter shall conform to the requirements of Table 2.For sleeving not listed in Table 2, the nominal inside diameter shall be agreed upon between the purchaser and the supplier. Theaverage inside diameter shall conform to the requirements of Table 3 unless otherwise agreed upon be
24、tween the purchaser and theseller.14. Wall Thickness14.1 For braided tubular sleeving listed in Table 2, the nominal wall thickness shall conform to the requirements of Table 2. Forsleeving not listed in Table 2, the nominal wall thickness shall be agreed upon between the purchaser and the supplier.
25、 The averagewall thickness shall be within 0.03 mm (0.001 in.)0.001 in. of the nominal value.15. Length Per Unit Mass15.1 For braided tubular sleeving listed in Table 2, the nominal length per unit mass shall conform to the requirements of Table2. For sleeving not listed in Table 2, the nominal leng
26、th per unit mass shall be agreed upon between the purchaser and the supplier.The average length per unit mass shall be within the interval: nominal length per unit mass 6 10 % of the nominal length per unitmass.16. Length Per Package16.1 The nominal length of braided tubular sleeving on each package
27、, such as a spool or serving tube, shall be no more thanD581/D581M 122108 m (120 yd)120 yd nor less than 72 m (80 yd)80 yd unless otherwise agreed upon between the purchaser and the supplier.16.2 Unless otherwise agreed upon between the purchaser and the supplier, no piece of braided tubular sleevin
28、g shall be lessthan 14 m (15 yd)15 yd long and there shall be no more than three pieces in a package.16.3 None of the sample tubes or serving spools shall contain more than the allowable pieces, and the combined length of allof the sample tubes or serving spools shall not be less than the combined l
29、ength of those tubes or serving spools on theidentification labels.17. Ignition Loss17.1 The organic content of greige braided tubular sleeving shall be at least 1.0 % and no greater than 4.0 % unless otherwiseagreed upon between the purchaser and the supplier.18. Visual Appearance18.1 The braided t
30、ubular sleeving shall be generally uniform in quality and condition, clean, smooth, and free of foreignparticles and defects detrimental to fabrication, appearance, or performance.18.2 The braided tubular sleeving in the laboratory sample for the visual appearance shall be examined on both sides for
31、 thedefects listed in Table 4, and the acceptable quality levels (AQLs) shall be 0.65 major and 2.5 total (major and minor combined)defects per hundred units of braided tubular sleeving unless otherwise agreed upon between the purchaser and the supplier.SAMPLING AND CONDITIONING19. Sampling19.1 Lot
32、SizeA lot is defined as a single shipment of a single type of braided tubular sleeving. A lot may constitute all or partof a single customer order.19.2 Lot SampleUnless otherwise agreed upon, take at random as a lot sample the number of tubes or serving spools ofbraided tubular sleeving specified in
33、 ANSI/ASQC Z1.4 and a single sampling plan.19.3 Laboratory SampleAs a laboratory sample, take the following samples:19.3.1 For visual appearance and length of braided tubular sleeving, the tubes or serving spools in the lot sample serve as thelaboratory sample.19.3.2 For other properties, take at ra
34、ndom from the tubes or serving spools in the lot sample the number of tubes or servingspools specified in Table 5.19.4 Test SpecimensFor visual appearance and braided tubular sleeving length, the tubes or serving spools in the lot sampleserve as test specimens. For other properties, take material fr
35、om the outside of each tube or serving spool in the laboratory sampleas a source of test specimens required in the respective test methods in this specification after first discarding a minimum of 1 m(1 yd)1 yd from the very outside of the tube or serving spool.20. Conditioning20.1 Condition the lab
36、oratory samples for a period of at least 5 h in the atmosphere as specified in Practice D1776. Test underthe same conditions. Preconditioning is not required.NOTE 1Glass textiles are normally tested under either the atmosphere specified for textiles or for plastics depending on their end use.TEST ME
37、THODS21. Material21.1 Accept the supplier certification that the material is of the correct classification as specified in Specification D578. Verifythat the fiber is continuous filament, if not specified otherwise, during testing for strand construction as directed in Section 24.Determine the freed
38、om from detrimental impurities during the inspection for fabric appearances as directed in Section 35.22. Filament Diameter22.1 Determine the filament diameter for the braided tubular sleeving yarns as directed in Specification D578 by using 50individual filaments from one yarn specimen from each of
39、 the selected tubes or serving spools in the laboratory sample.23. Yarn Number-Sleeving Component Yarns23.1 Determine the size-free yarn number in tex (oror yards per pound)pound of the yarns in the braided tubular sleeving asdirected in Test Method D1907, Option 1, using a skein length of 1 m or 1
40、yd for each specimen and one specimen from each ofthe selected tubes or serving spools in the laboratory sample.23.1.1 Precondition by placing test specimens in a muffle furnace and heat to 625 6 25C (11571157 6 45F)45F for 15 min,then cool to room temperature for 15 min.24. Strand Construction24.1
41、Verify the number of singles strands and the number of plied or cabled strands on one test specimen from each of theD581/D581M 123selected tubes or serving spools in the laboratory sample while determining the twist direction or twist level. See Section 21.25. Direction of Twist25.1 Verify the direc
42、tion of twist in each strand of the yarns of the braided tubular sleeving as directed in Test Method D1423for one test specimen from each of the selected tubes or serving spools in the laboratory sample.26. Twist Level26.1 Determine the twist level in each of the component strands in the braided tub
43、ular sleeving as directed in Test MethodD1423 upon five test specimens from each of the selected tubes or serving spools in the laboratory sample.27. Ends Per Carrier27.1 Verify the ends per carrier in the braided tubular sleeving for one test specimen from each of the selected tubes or servingspool
44、s in the laboratory sample. This is determined by cutting through a length of braided tubular sleeving at right angles to theaxis of the braided sleeving and then counting the number of cut yarn ends observed in each weave of the braided tubular sleeving.28. Number of Carriers28.1 Verify the number
45、of carriers in the braided tubular sleeving for one test specimen from each of the selected tubes orserving spools in the laboratory sample. This is determined while making ends per carrier determinations and counting the totalnumber of cut yarn ends observed and dividing by the ends per carrier.29.
46、 Picks Per Unit Length29.1 Determine the picks per centimetre (pickspicks per inch)inch of the braided tubular sleeving as directed in Test MethodD3775 using three test specimens from each of the selected tubes or serving spools in the laboratory sample except:29.1.1 Measure the number of picks per
47、centimetre (pickspicks per inch)inch over a 75-mm (3-in.)3-in. length after thebraided tubular sleeving has been placed snugly upon a mandrel having the same diameter as the specified inside diameter of thesleeving. Use a standard pick counter in counting the number of picks per centimetre (pickspic
48、ks per inch).inch. Take the averageof the three measurements as the number of picks per centimetre (pickspicks per inch)inch 25 mm (1 in.). 1 in.NOTE 2“Picks” is a common term used by industry when referring to the yarn crossover points laying crosswise in braided tubular sleeving createdby the brai
49、ding action.30. Inside Diameter30.1 Determine the inside diameter of the braided tubular sleeving as directed in Test Methods D350, using one test specimenfrom each of the selected tubes or serving spools in the laboratory sample.31. Wall Thickness31.1 Determine the wall thickness of the braided tubular sleeving as directed in Test Methods D350, using one test specimenfrom each of the selected tubes or serving spools.32. Length Per Unit Mass32.1 Determine the length per unit mass in tex (oror yards per pound)pound of the braided
