1、 ISO 2015 Textiles Test methods for evaluating the electrostatic propensity of fabrics Part 2: Test method using rotary mechanical friction Textiles Mthodes dessai pour lvaluation de la propension des toffes lectrostatique Partie 2: Mthode dessai de frottement mcanique rotatif INTERNATIONAL STANDARD
2、 ISO 18080-2 First edition 2015-12-15 Reference number ISO 18080-2:2015(E) ISO 18080-2:2015(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 oth
3、erwise in any form or 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 offic
4、e Ch. de Blandonnet 8 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 18080-2:2015(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 atmospher
5、e 2 6 Apparatus . 2 7 Preparation of specimen 4 7.1 Sampling . 4 7.2 Cleansing of sample 4 7.2.1 General 4 7.2.2 Wash by water 4 7.2.3 Dry cleaning . 5 7.3 Conditioning of sample 5 8 Preparation for the apparatus . 5 8.1 Specimen thickness . 5 8.2 Adjustment of the height of detector electrode 5 8.3
6、 Adjustment of the height of rubbing cloth clamps . 5 8.4 Connection to recording device 5 9 Testing method . 5 10 Test report . 6 Annex A (informative) Interpretation of the test result . 7 Annex B (informative) Round robin test result . 8 Bibliography .14 ISO 2015 All rights reserved iii Contents
7、Page ISO 18080-2:2015(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
8、normally 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 ta
9、ke 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
10、 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 ri
11、ghts. 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 t
12、his 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
13、 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 gen
14、eral title 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 ri
15、ghts reserved ISO 18080-2:2015(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 a
16、ttraction 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 cause
17、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. How
18、ever, 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 is one of a number of test methods that can be used
19、to evaluate the electrostatic propensity of textile materials. Definitive performance requirements are not given, but guidance on the interpretation of results is given in informative Annex A. The qualitative interpretation scheme is based on anecdotal experience in industry in controlling clinging,
20、 uncomfortable shocks and attraction of particulate contaminants. Nevertheless, it is provided for guidance only and users of this International Standard are advised to check its validity for their own applications. This test method simulates electrostatic charging typically experienced in wearing c
21、onditions. The standard rubbing cloths and mechanical conditions have been selected from long experience. ISO 2015 All rights reserved v Textiles Test methods for evaluating the electrostatic propensity of fabrics Part 2: Test method using rotary mechanical friction 1 Scope This part of ISO 18080 sp
22、ecifies a test method using rotary mechanical friction with measurement of the friction-charged electrostatic potential on specimens of fabric. The test method is suitable for fabrics of all types of composition and construction that are capable of withstanding frictional charging. Some fabrics, e.g
23、. fabrics of low strength or loose construction, may not be physically capable of withstanding the mechanical friction used in this test method or may give false results. In such cases, the test method described in ISO 18080-1 can be used to evaluate electrostatic propensity. The test method describ
24、ed 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 documents, in whole or in part, are normatively referenced in this document and are indispensable
25、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 105-F01, Textiles Tests for colour fastness Part F01: Specification for wool adjacent fabric ISO 105-F02, Textiles
26、Tests for colour fastness Part F02: Specification for cotton and viscose adjacent fabrics ISO 3175-2, Textiles Professional care, drycleaning and wetcleaning of fabrics and garments Part 2: Procedure for testing performance when cleaning and finishing using tetrachloroethene ISO 3175-3, Textiles Pro
27、fessional care, drycleaning and wetcleaning of fabrics and garments Part 3: Procedure for testing performance when cleaning and finishing using hydrocarbon solvents ISO 5084, Textiles Determination of thickness of textiles and textile products ISO 6330, Textiles Domestic washing and drying procedure
28、s for textile testing 3 T erms a nd definiti ons For the purposes of this 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 friction-charged
29、electrostatic potential potential generated on a material by friction with another or same material obtained as voltage INTERNATIONAL ST ANDARD ISO 18080-2:2015(E) ISO 2015 All rights reserved 1 ISO 18080-2:2015(E) 3.3 conductive providing a sufficiently high conductivity so that potential differenc
30、es over any parts of a material or object are not sufficiently large as 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. 4 Principle A fabric specimen is
31、 mounted on a rotary drum and mechanically rubbed against a stationary rubbing cloth as the drum rotates. The electrostatic potential caused by the friction between the specimen and the rubbing cloth is measured by a detector electrode during the rotation cycle. 5 Conditioning and testing atmosphere
32、 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 used for conditioning or testing, record it in the test report. NOTE For measurements, refer to ISO 139
33、. 6 Apparatus 6.1 Testing apparatus, one possible test apparatus is shown in Figures 1 to 3 as an example with further details shown below. Other apparatus may also be used after appropriate validation. 6.2 Rotary drum (Figure 1, key 5), aluminium drum with specimen mounting holders. The outside dia
34、meter of the drum is 150 mm 1 mm, the width is 60 mm 1 mm, and it is rotated at (400 1) rpm by a motor. Mounting pedestal for specimen (Figure 1, key 3, and Figure 2), made from a metal frame with an insulating plastic insert such as polytetrafluoroethylene, the surface of which is level with the up
35、per edge of the metal frame and of the same radius of curvature. NOTE Figure 1 shows a drum fitted with four mounting pedestals. This is necessary to keep the drum in balance as it rotates. Only one pedestal is used for mounting the test specimen. Specimen cover (Figure 3), made of stainless steel w
36、ith a thickness of 1 mm 0,1 mm. Friction position (shown in Figure 1), a rubbing cloth (key 1) of 25 mm 1 mm width by 150 mm 1mm length is held by clamps (key 2) at both ends with a distance of 130 mm 3 mm between the clamps and held in tension by a load of 4,9 N 0,1 N (key 6). The vertical distance
37、 between the rubbing cloth surface and a horizontal line tangential to the specimen pedestal surface shall be 1,0 mm 0,1 mm measured at the left side clamp and 3,0 mm 0,1 mm measured at the right side clamp. Detector electrode (Figure 1, key 4) a plate type field sensor with a plate diameter of 20 m
38、m 1 mm, measurement range from 0 kV to 10 kV with an accuracy of 5 %, and response time less than 7 ms. Other types of electrostatic fieldmeters or non-contacting voltmeters of suitable dimensions can be used.2 ISO 2015 All rights reserved ISO 18080-2:2015(E) Dimensions in millimetres Key 1 rubbing
39、cloth 2 clamp for rubbing cloth 3 mounting pedestal for specimen (only one pedestal is used for mounting the test specimen) 4 detector electrode 5 rotary drum 6 load (tolerance: 0,1 N) Figure 1 Example of a testing apparatus Dimensions in millimetres 1 27 1 36 1 40 1 30 1 14 1 Key 1 insulating plast
40、ic pedestal 2 metal frame with a radius of curvature approximately 90 mm 1mm Figure 2 Mounting pedestal ISO 2015 All rights reserved 3 ISO 18080-2:2015(E) Dimensions in millimetres 25 1 Key 1 open space (25 mm 1 mm width by 30 mm 1 mm length) Figure 3 Specimen cover Metal and other conductive compon
41、ents of the test apparatus shall be connected to the ground with a resistance to the ground of less than 10 . 6.3 Recording device. 6.4 Static electricity elimination equipment, self-discharge type or superimposed voltage type. 6.5 Rubbing cloth, wool and cotton standard adjacent fabrics specified i
42、n ISO 105-F01 and ISO 105-F02. If other rubbing cloths are used, a complete description shall be included in the test report. 6.6 Oven, used to dry samples at (70 3) C. 7 Preparation of specimen 7.1 Sampling 7.1.1 Prepare a sample for the test from a fabric roll or clothing. 7.1.2 Careful handling a
43、nd the use of clean, lint free gloves is recommended to avoid contaminating the samples. 7.2 Cleansing of sample 7.2.1 General In case cleansing of the samples is required, use one of the following procedures. If the procedure used for cleansing differs from those detailed below, either in the metho
44、d, number of cycles, or any other condition, details of such deviations shall be included in the test report. 7.2.2 Wash by water Wash the samples three cycles according to ISO 6330 Procedure 4 N or 4 M at 40 C water temperature using reference detergent according to ISO 6330. Dry them by one of the
45、 natural drying procedures according to ISO 6330. Residual detergent from previous use of the washing machine can affect test results. Careful cleaning of the washing machine before use is recommended.4 ISO 2015 All rights reserved ISO 18080-2:2015(E) 7.2.3 Dry cleaning Dry clean samples through thr
46、ee cycles 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 conditioning atmosphere specified in Clause 5 for at least 24 h. 8 Preparation for the apparatus 8.1 Specimen thickness Measure the
47、 thickness (t mm) of the specimen to be tested according to ISO 5084. 8.2 Adjustment of the height of detector electrode Adjust the distance from the detector electrode to the surface of specimen cover on the mounting pedestal (Figure 1, key 4) to be 15 mm + t mm. 8.3 Adjustment of the height of rub
48、bing cloth clamps The standard clamp positions over horizontal tangent line are 1 mm 0,1 mm for left clamp and 3 mm 0,1 mm for right clamp. According to the thickness of specimen, adjust the height of clamps down by the amount of the specimen thickness (t). For the left clamp position: 1 mm t mm For
49、 the right clamp position: 3 mm t mm 8.4 Connection to recording device Connect the apparatus to recording device. 9 Testing method 9.1 After conditioning as specified in 7.3, cut five test specimens from the sample of dimensions 50 mm 1 mm by 80 mm 1 mm with the longer dimension in the direction of the warp in woven fabrics, the wale in knitted fabrics, or
