1、Designation: D 6613 08Standard Practice forDetermining the Presence of Sizing in Nylon or PolyesterFabric1This standard is issued under the fixed designation D 6613; 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 Using a color scale of 1 to 5, this practice describes theprocedures for determining the presence and relative amount ofsiz
3、ing in fabrics made of undyed nylon or non-cationicallydyeable polyester yarns prepared with a cationically dyeablesizing1.2 Procedures and apparatus other than those stated in thisstandard may be used by agreement of purchaser and supplierwith the specific deviations from the standard acknowledged
4、inthe report.1.3 This practice may involve hazardous materials, opera-tions, and equipment. This practice does not purport to addressall of the safety concerns, if any, associated with its use. It isthe responsibility of the user of this practice to establishappropriate safety and health practices a
5、nd determine theapplicability of regulatory limitations prior to use.2. Referenced Documents2.1 ASTM Standards:2D 123 Terminology Relating to TextilesD 6799 Terminology Relating to Inflatable Restraints2.2 American Association of Textile Chemists and Colorists(AATCC):AATCC AATCC Evaluation Procedure
6、 # 833. Terminology3.1 Definitions:3.2 For all terminology relating to D13.20, Inflatable Re-straints, refer to Terminology D 6799.3.2.1 The following terms are relevant to this standard:extractable matter, sizing.3.3 For all other terms related to textiles, see TerminologyD 123.4. Summary of Practi
7、ce4.1 Test specimens of undyed nylon or polyester fabric arecationically dyed at room temperature. The resulting depth ofcolor of the dyed fabric is indicative of the presence andrelative amount of cationically dyebable sizing in the fabric.4.2 The color of the dyed fabric is matched to a color on a
8、nAATCC chromatic scale to determine the level of sizing in thefabric.5. Significance and Use5.1 The depth of color achieved in dyeing fabric accordingto this practice is relative to the amount of sizing in the fabric.This practice employs a chromatic staining scale from 1 to 5which is inversely prop
9、ortional to the relative amount of sizingin the fabric. A light color stain indicates a low concentrationof sizing and warrants a high numerical rating, while a darkcolor stain indicates a high concentration of sizing and war-rants a low numerical rating.5.2 The accuracy of this practice depends upo
10、n the ability ofthe testing personnel to match the color of the stain to thecolors in the AATCC 9 Step ChromaticTransference Scale.6. Apparatus6.1 Stainless Steel or Glass Beaker with a capacity of 1000ml.6.2 Glacial Acetic Acid.6.3 AATCC 9 Step Chromatic Transference Scale3.6.4 Ventilated Forced Ai
11、r Drying Oven capable of maintain-ing 350 6 5F (177 6 3C).6.5 100% concentration of Sevron 4G or equivalent BasicRed 14 Dyestuff.6.6 Fine Mesh SieveFine mesh sieve with a count of perinch 100 3 100.7. Conditioning7.1 Neither preconditioning nor conditioning is necessary.8. Sampling8.1 Determining re
12、sidual size is a destructive test andtherefore necessitates sampling procedures if used in conjunc-tion with lot acceptance of commercial shipments.8.2 Lot Sample1This practice is under the jurisdiction ofASTM Committee D13 on Textiles andis the direct responsibility of Subcommittee D13.20 on Inflat
13、able Restraints.Current edition approved July 1, 2008. Published July 2008. Originally approvedin 2000. Last previous edition approved in 2007 as D 661302(2007).2For referenced ASTM standards, visit the ASTM website, www.astm.org, orcontact ASTM Customer Service at serviceastm.org. For Annual Book o
14、f ASTMStandards volume information, refer to the standards Document Summary page onthe ASTM website.3Available from AATCC P.O. Box 12215, Research Triangle Park, N.C. 27709.1Copyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.8.2.1 For ac
15、ceptance testing, the lot size is the quantity offabric finished in one production day or as agreed betweenpurchaser and supplier.8.2.2 Unless otherwise agreed by purchaser and supplier,take as a lot sample all of the rolls in a commercial shipment.Consider the rolls to be the primary sampling units
16、.8.3 Laboratory Sample8.3.1 An entire roll of fabric or a full-width cut end from theend of a roll within a lot sample constitutes a laboratorysample.8.4 Test Specimens8.4.1 Test specimens are the pieces of fabric that actuallyundergo testing. Select specimens from the end of each roll offabric in t
17、he laboratory sample, as indicated in the materialspecification or equivalent.8.4.2 Unless otherwise agreed upon or specified take two 5in 3 5 in (12 cm 3 12 cm) specimens from the fabric roll tobe tested.9. Procedure9.1 Prepare Acid Rinse Solution of 0.25% Acetic Acidsolution by mixing 2.5 6 0.1 g
18、glacial acetic acid in 1000 6 10g water.9.2 Prepare Dye Solution by dissolving 1 6 0.1 g of 100%concentration of Sevron Red 4G or other Basic Red 14 dyestuffin 1000 6 10 g of water.9.3 Place specimen in oven preheated to 177 6 3C (350 65F) for a minimum of 3 min.9.4 Immerse specimen for 10 6 1 sec i
19、n a 10:1 ratio of acidrinse solution.9.5 Immerse rinsed and drained specimen in dye solutionfor 30 6 5 sec at room temperature.9.6 Remove specimen from dye solution and rinse for 60 65 sec under warm tap water at 4050C (105120F).9.7 Visually compare the residual color of the specimen tothe AATCC 9 S
20、tep Chromatic Transference Scale in accor-dance with AATC Evaluation Procedure # 8 and report a classrating as follows:Class 1 Heavily stainedClass 2 Considerably stainedClass 3 Noticeably stainedClass 4 Slightly stainedClass 5 Negligible to no stain9.8 Repeat procedure with second specimen.10. Repo
21、rt10.1 State that the test was conducted in accordance withTest Method D 6613 for determining the residual size contentof inflatable restraint fabrics.10.2 If deviation from Practice D 6613 occurred, any refer-ence to this standard shall state: “Testing was performed inaccordance with ASTM PracitceD
22、 6613, with the followingchanges.”10.3 The purchaser and supplier shall determine the exactform of the test report. Unless otherwise specified, the formshall provide the following information:10.3.1 Fabric designation,10.3.2 Lot identification,10.3.3 Date of report,10.3.4 Name of person certifying r
23、eport,10.3.5 Relevant specification,10.3.6 Number of specimens used in each test,10.3.7 Tests performed and class rating assigned,10.3.8 Laboratory conditions if other than standard,10.3.9 Deviations from standard procedures and apparatus.11. Conformance11.1 When lot acceptance applies, the test res
24、ults of thispractice should conform to allowable ranges listed in theapplicable material specification or other agreement betweenpurchaser and supplier in order to warrant release of the fabricshipment.11.2 The supplier shall report non-conformity to the pur-chaser in writing. A fabric lot that fail
25、s to conform to physicaltesting requirements as specified or as otherwise agreed uponmay only be released for shipment upon written consent of thepurchaser.11.3 In case of dispute arising from differences in reportedresults when using this practice, the purchaser and the suppliershould conduct corre
26、lation tests between their laboratories. Asa minimum, the two parties should take a group of homoge-neous test specimens from the same lot of fabric, randomlyassigning them in equal numbers to each laboratory for testing.If after the average results from the two laboratories arevisually compared and
27、 a difference in average class rating isfound to exist, either its cause should be found and corrected,or the purchaser and supplier should agree to interpret futureresults based on the correlation established between the twolaboratories.12. Precision and Bias12.1 There is no Precision and Bias stat
28、ement associatedwith this practice because it relies on a visual comparison andno data is generated. However, there can be differences inresults between laboratories that may require a correlationbetween labs as discussed in section 11.3 of this practice.13. Keywords13.1 crock scale; extractable mat
29、ter; sizing; stainingD6613082ASTM 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 validity of any such patent rights, and the riskof inf
30、ringement of such rights, are entirely their own responsibility.This standard is subject to revision at any time by the responsible technical committee and must be reviewed every five years andif not revised, either reapproved or withdrawn. Your comments are invited either for revision of this stand
31、ard or for additional standardsand should be addressed to ASTM International Headquarters. Your comments will receive careful consideration at a meeting of theresponsible technical committee, which you may attend. If you feel that your comments have not received a fair hearing you shouldmake your vi
32、ews known to the ASTM Committee on Standards, at the address shown below.This standard is copyrighted by ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959,United States. Individual reprints (single or multiple copies) of this standard may be obtained by contacting ASTM at the aboveaddress or at 610-832-9585 (phone), 610-832-9555 (fax), or serviceastm.org (e-mail); or through the ASTM website(www.astm.org).D6613083
