1、 ISO 2015 Textiles Test methods for evaluating the electrostatic propensity of fabrics Part 3: Test method using manual friction Textiles Mthodes dessai pour lvaluation de la propension des toffes lectrostatique Partie 3: Mthode dessai de friction manuelle INTERNATIONAL STANDARD ISO 18080-3 First ed
2、ition 2015-12-15 Reference number ISO 18080-3:2015(E) ISO 18080-3:2015(E)ii ISO 2015 All rights reserved COPYRIGHT PROTECTED DOCUMENT ISO 2015, Published in Switzerland All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized otherwise in any form or
3、 by any means, electronic or mechanical, including photocopying, or posting on the internet or an intranet, without prior written permission. Permission can be requested from either ISO at the address below or ISOs member body in the country of the requester. ISO copyright office Ch. de Blandonnet 8
4、 CP 401 CH-1214 Vernier, Geneva, Switzerland Tel. +41 22 749 01 11 Fax +41 22 749 09 47 copyrightiso.org www.iso.org ISO 18080-3:2015(E)Foreword iv Introduction v 1 Scope . 1 2 Normative references 1 3 T erms and definitions . 1 4 Principle 2 5 Conditioning and testing atmosphere 2 6 Apparatus . 2 7
5、 Preparation of specimen 5 7.1 Sampling . 5 7.2 Cleansing 5 7.2.1 General 5 7.2.2 Wash by water 5 7.2.3 Dry cleaning . 5 7.3 Conditioning of sample 5 8 Testing method . 5 9 Test report . 9 Annex A (informative) Round robin test results .10 Bibliography .16 ISO 2015 All rights reserved iii Contents P
6、age ISO 18080-3:2015(E) Foreword ISO (the International Organization for Standardization) and IEC (the International Electrotechnical Commission) are worldwide federations of national standards bodies (ISO member bodies and IEC national committees). The work of preparing International Standards is n
7、ormally carried out through ISO and IEC technical committees. Each member body interested in a subject for which a technical committee has been established has the right to be represented on that committee. International organizations, governmental and non-governmental, in liaison with ISO, also tak
8、e part in the work. ISO collaborates closely with IEC on all matters of electrotechnical standardization. The procedures used to develop this document and those intended for its further maintenance are described in the ISO/IEC Directives, Part 1. In particular the different approval criteria needed
9、for the different types of ISO documents should be noted. This document was drafted in accordance with the editorial rules of the ISO/IEC Directives, Part 2 (see www.iso.org/directives). Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rig
10、hts. ISO shall not be held responsible for identifying any or all such patent rights. Details of any patent rights identified during the development of the document will be in the Introduction and/or on the ISO list of patent declarations received (see www.iso.org/patents). Any trade name used in th
11、is document is information given for the convenience of users and does not constitute an endorsement. For an explanation on the meaning of ISO specific terms and expressions related to conformity assessment, as well as information about ISOs adherence to the WTO principles in the Technical Barriers
12、to Trade (TBT) see the following URL: Foreword - Supplementary information The committees responsible for this document are Technical Committee ISO/TC 38, Textiles and IEC/TC 101 Electrostatics as JWG 26, Antistatic, in the lead of ISO/TC 38. ISO 18080 consists of the following parts, under the gene
13、ral title of Textiles Test methods for evaluating the electrostatic propensity of fabrics: Part 1: Test method using corona charging Part 2: Test method using rotary mechanical friction Part 3: Test method using manual friction Part 4: Test method using horizontal mechanical frictioniv ISO 2015 All
14、rights reserved ISO 18080-3:2015(E) Introduction In addition to safety hazards and damage or disruption of sensitive electronic devices and systems which are covered by other International Standards, electrostatic charging of clothing can also cause problems of clinging, uncomfortable shocks and the
15、 attraction of airborne dust and other contaminants. Clothing designed to avoid airborne dust contamination is required in a number of expanding industries relating to precision technology, biotechnology, food, hygiene, etc. It is also generally desirable to have clothing that does not cling or caus
16、e uncomfortable shocks. Test methods are required to evaluate the propensity of fabrics used to make clothing designed to avoid problems associated with electrostatic charging. Test methods are specified in a number of National and International Standards, including those published by ISO and IEC. H
17、owever, the relationship between measurable electrostatic properties and end use performance is rather complex and may require a combination of different test methods depending on application. The test method described in this International Standard for measuring charge density on the surface of a t
18、extile generated by friction is one of a number of test methods that can be used to evaluate the electrostatic propensity of textile materials. As the charge density generated depends on the textile material, its surface condition, and the nature of the friction, the gentle friction action described
19、 can be considered to simulate practical wearing conditions. As with any manual test procedure, there is a certain operator dependence that cannot be eliminated. Test results from different laboratories may differ by more than a factor of five. ISO 2015 All rights reserved v Textiles Test methods fo
20、r evaluating the electrostatic propensity of fabrics Part 3: Test method using manual friction 1 Scope This part of ISO 18080 specifies a test method using manual friction with measurement of frictional charge density on specimens of fabric. The test method is suitable for fabrics of all types of co
21、mposition and construction that are capable of withstanding frictional charging. Some fabrics, e.g. fabrics of low strength or loose construction, may not be physically capable of withstanding the manual friction used in this test method or may give false results. In such cases, the test method desc
22、ribed in ISO 18080-1 can be used to evaluate electrostatic propensity. The test method described may not be suitable for evaluating garments and garment materials in relation to safety of personnel and protection of electrostatic discharge sensitive devices. 2 Normative references The following docu
23、ments, in whole or in part, are normatively referenced in this document and are indispensable for its application. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. ISO 3175-2, Textiles Prof
24、essional care, drycleaning and wetcleaning of fabrics and garments Part 2: Procedure for testing performance when cleaning and finishing using tetrachloroethene ISO 3175-3, Textiles Professional care, drycleaning and wetcleaning of fabrics and garments Part 3: Procedure for testing performance when
25、cleaning and finishing using hydrocarbon solvents ISO 6330, Textiles Domestic washing and drying procedures for textile testing IEC 61340-5-1, Electrostatics Part 5-1: Protection of electronic devices from electrostatic phenomena General requirements 3 T erms a nd definiti ons For the purposes of th
26、is document, the following terms and definitions apply. 3.1 antistatic property of a material that reduces its propensity to acquire electrostatic charges or allows electrostatic charges to dissipate quickly 3.2 conductive providing a sufficiently high conductivity so that potential differences over
27、 any parts of a material or object are not sufficiently large to be of practical significance Note 1 to entry: In general, a conductive material has a resistance below about 10 5, but different standards may define different resistance ranges for this term. INTERNATIONAL ST ANDARD ISO 18080-3:2015(E
28、) ISO 2015 All rights reserved 1 ISO 18080-3:2015(E) 3.3 frictional charge density quantity of charge per unit area on a fabric specimen generated by friction between the specimen and other fabrics 4 Principle A fabric specimen is charged by rubbing it by hand with another fabric. The quantity of ch
29、arge generated is measured using a Faraday pail test apparatus. 5 Conditioning and testing atmosphere Unless otherwise agreed or specified, the atmosphere for conditioning and testing shall be a temperature of (20 2) C and a relative humidity of (40 4) %. If a different temperature or humidity is us
30、ed for conditioning or testing, record it in the test report. NOTE For measurements, refer to ISO 139. 6 Apparatus 6.1 Testing apparatus, an example of the testing apparatus is composed of the following parts. Voltmeter, with a DC measurement range of (10 mV to 10 V) or larger, 5 % measuring accurac
31、y, and input resistance greater than 10 14. Faraday pail, the basic form of a Faraday pail system for measurement of charge is shown in Figure 1. It consists of two concentric metal containers, the inner container being electrically insulated from the outer which is connected to the ground. The latt
32、er is necessary to provide electrical shielding from external fields and protection for the sensitive charge measuring system. Capacitor, added to the measuring circuit to limit the pail voltage to within the range of the voltmeter used. A capacitor of 0,1 F with a relative tolerance of 2 % and insu
33、lation resistance greater than 10 13 is suitable for the voltage measuring range shown above. Insulating spacer, made of fluoro-resin, acrylic resin or poly-carbonate resin, or other material with insulation resistance of at least 1 10 14.2 ISO 2015 All rights reserved ISO 18080-3:2015(E) Dimensions
34、 in millimetres 1 2 3 400 600 850 1 000 750 950 Key 1 Faraday pail 2 voltmeter 3 capacitor 4 insulating spacer Figure 1 Example of a charge quantity measuring apparatus 6.2 Rubbing fabric Rubbing fabrics for this test are selected as follows: acrylic filaments, interlock knit using 3 stage bat: 200
35、g/m 2 15 g/m 2 ; nylon filaments, interlock knit using 3 stage bat: 230 g/m 2 15 g/m 2 ; if other rubbing fabrics are used, they shall be described in full detail in the test report. 6.3 Rubbing bar preparation 6.3.1 Prepare a hard polyvinyl chloride pipe with an outside diameter of 32 mm 0,2 mm, a
36、nominal thickness of 3,1 mm, and a nominal length of 400 mm. A hard polyvinyl chloride pipe with the nearest dimension may be used for this test. 6.3.2 Prepare the nylon or acrylic rubbing fabric with a length of 500 mm 10 mm in the wale direction and 450 mm 10 mm in the course direction. 6.3.3 Wind
37、 the rubbing fabric around the pipe (6.3.1) so that the entire 500 mm length of the rubbing fabric is taken up around the pipe. 6.3.4 Stretch both ends and insert the extra length of rubbing fabric inside of the pipe to fix it inplace. 6.4 Base plate preparation 6.4.1 Prepare an aluminium plate with
38、 nominal dimensions of 320 mm 300 mm and a thickness 3 mm. 6.4.2 Prepare the rubbing fabric as specified in 6.3.2 with nominal dimensions of 450 mm in the wale direction and 400 mm in the course direction. ISO 2015 All rights reserved 3 ISO 18080-3:2015(E) 6.4.3 Place the double-sided adhesive tape
39、(thickness 50 m to 100 m and nominal width 20 mm) along all four sides of the reverse surface of the base plate. 6.4.4 Wrap the rubbing fabric so as to cover the plate from all ends and fix it using the adhesive tape as shown in Figure 2. 2 3 Key 1 folded rubbing fabric, fixed by double-sided adhesi
40、ve tape 2 rubbing fabric 3 aluminium plate, 320 mm 300 mm, thickness 3 mm 4 ground wire F i g u r e 2 B a s e p l a t e c o n f i g u r a t i o n 6.5 Base stand, made of wooden plate, acrylic bar for stopper, and rubber legs. Dimensions in millimetres 320 1 35 1 3 0,5 1 1 3 2 10 110 1 160 1 30 1 38
41、1 55 1 100 1450 1 20 1 185 1 Key 1 acrylic bar 2 wooden plate 3 rubber legs 4 ground wire hole F i g u r e 3 B a s e s t a n d c o n f i g u r a t i o n4 ISO 2015 All rights reserved ISO 18080-3:2015(E) 6.6 Insulation bar, made of acrylic, with a nominal diameter of 20 mm and a nominal length of 500
42、 mm. 6.7 Static electricity elimination equipment, self-discharge type or superimposed voltage type. 6.8 Oven, used to dry samples at (70 3) C. 6.9 Other test apparatus. Test apparatus other than that described above may be used after appropriate validation and provided a full description of all dev
43、iations from the above specifications are included in the test report. 7 Preparation of specimen 7.1 Sampling Prepare a sample for the test from a fabric roll or clothing. Careful handling and the use of clean, lint free gloves is recommended to avoid contaminating the samples. 7.2 Cleansing 7.2.1 G
44、eneral In case that the samples are required to cleanse, use one of the following procedures. If the procedure used for cleansing differs from those detailed below, either in the method, number of cycles, or any other condition, details of such deviations shall be included in the test report. 7.2.2
45、Wash by water Wash the samples three cycles according to ISO 6330 Procedure 4 N or 4 M at 40 C water temperature using a reference detergent according to ISO 6330. Dry them by one of the natural drying procedures according to ISO 6330. Residual detergent from previous use of the washing machine may
46、affect the test results. Careful cleaning of the washing machine before using is recommended. 7.2.3 Dry cleaning Dry clean samples according to ISO 3175-2 or ISO 3175-3. 7.3 Conditioning of sample Condition samples as follows: dry two samples for one hour at 70 C; place the samples in the conditioni
47、ng atmosphere specified in Clause 5 for at least 24 h. 8 Testing method 8.1 After conditioning as specified in 7.3, cut three test specimens from the sample of dimensions 350 mm 1 mm by 250 mm 1 mm with the longer dimension in the direction of the warp in woven fabrics, the wale in knitted fabrics,
48、or machine direction in nonwoven fabrics. Cut a further three ISO 2015 All rights reserved 5 ISO 18080-3:2015(E) specimens with the longer dimension in the direction of the weft in woven fabrics, the course in knitted fabrics, and the cross direction in nonwoven fabrics. For fabrics containing condu
49、ctive fibres in stripe or grid patterns, specimens shall be cut so that conductive fibres are evenly distributed around the centre line of the specimen as shown in Figure 4. 3 2 1 Key 1 conductive fibres 2 visual centre line of a specimen for both directions F i g u r e 4 P r e p a r a t i o n o f s p e c i m e n w i t h c o n d u c t i v e f i b r e s 8.2 Fold the specimen to make an open space of about 260 mm
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