ISO 18080-4-2015 Textiles - Test methods for evaluating the electrostatic propensity of fabrics - Part 4 Test method using horizontal mechanical friction《纺织品 评估.pdf

1、 ISO 2015 Textiles Test methods for evaluating the electrostatic propensity of fabrics Part 4: Test method using horizontal mechanical friction Textiles Mthodes dessai pour lvaluation de la propension des toffes lectrostatique Partie 4: Mthode dessai de friction mcanique horizontale INTERNATIONAL ST

2、ANDARD ISO 18080-4 First edition 2015-12-15 Reference number ISO 18080-4:2015(E) ISO 18080-4:2015(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 utiliz

3、ed otherwise 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

4、 office 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 18080-4:2015(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 atm

5、osphere 2 6 Apparatus . 2 7 Movement of the test apparatus . 4 8 Preparation of specimen 5 8.1 Sampling . 5 8.2 Cleansing of sample 5 8.2.1 General 5 8.2.2 Wash by water 5 8.2.3 Dry cleaning . 5 8.3 Conditioning of sample 5 9 Test procedure 6 10 Test report . 7 Annex A (informative) Test result 8 Bi

6、bliography .10 ISO 2015 All rights reserved iii Contents Page ISO 18080-4:2015(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 commi

7、ttees). The work of preparing International Standards is 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, govern

8、mental and non-governmental, in liaison with ISO, also take 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, Par

9、t 1. In particular the different approval criteria needed 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

10、elements of this document may be the subject of patent rights. 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 rec

11、eived (see www.iso.org/patents). Any trade name used in this 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

12、adherence to the WTO principles in the Technical Barriers 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.

13、 ISO 18080 consists of the following parts, under the general 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 meth

14、od using horizontal mechanical frictioniv ISO 2015 All rights reserved ISO 18080-4:2015(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 c

15、ause problems of clinging, uncomfortable shocks and the 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

16、 desirable to have clothing that does not cling or cause 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

17、 Standards including those published by ISO and IEC. However, 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 Stand

18、ard is one of a number of test methods that can be used to evaluate the electrostatic propensity of textile materials. The test method is based on frictional charging which is one of the main charging mechanisms present in practical wearing conditions. Although the methods described in ISO 18080-2 a

19、nd ISO 18080-3 also use frictional charging, the results may not be directly comparable in absolute terms because of the different ways in which friction is applied. ISO 2015 All rights reserved v Textiles Test methods for evaluating the electrostatic propensity of fabrics Part 4: Test method using

20、horizontal mechanical friction 1 Scope This part of ISO 18080 specifies a test method using horizontal mechanical friction with measurement of friction-charged electrostatic potential on specimens of fabric and the time for that potential to decay. The test method is suitable for fabrics of all type

21、s of composition 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 meth

22、od described 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 followi

23、ng documents, 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 105-F01, Texti

24、les Tests for colour fastness Part F01: Specification for wool adjacent fabric ISO 105-F02, Textiles 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

25、 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 cleaning and finishing using hydrocarbon solvents ISO 6330, Textiles Domestic washin

26、g and drying procedures 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

27、 3.2 conductive providing a sufficiently high conductivity so that potential differences over any parts of a material or object are not sufficiently large to be of practical significance INTERNATIONAL ST ANDARD ISO 18080-4:2015(E) ISO 2015 All rights reserved 1 ISO 18080-4:2015(E) 3.3 friction-charg

28、ed electrostatic potential potential generated on a material by friction with another or same material obtained as voltage 3.4 decay time time for the impressed voltage to decay to a percentage of the peak voltage 3.5 half decay time time for the impressed voltage to decay to half of the peak voltag

29、e 4 Principle A specimen is rubbed by a rubbing fabric using a horizontal mechanical friction test apparatus. After rubbing, the specimen pedestal is moved under an electrostatic fieldmeter. Surface potential on the specimen is measured by the electrostatic fieldmeter and recorded against the elapse

30、d time as the potential decays. The friction-charged electrostatic potential, i.e. the peak electrostatic potential, and half decay time are derived from the recorded data. 5 Conditioning and testing atmosphere Unless otherwise agreed or specified, the atmosphere for conditioning and testing shall b

31、e 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. 6 Apparatus 6.1 T esting apparatus, an example of apparatus is shown in Figure 1 and com

32、posed of as the following. Test apparatus other than that described below may be used after appropriate validation and provided a full description is included in the test report. Rubbing unit, Figure 1, key 1. Specimen table, Figure 1, key 2, thickness 1,5 mm 0,1 mm and with a hole of 72 mm 1 mm dia

33、meter. After rubbing, the specimen table is moved so that the specimen is placed under the electric fieldmeter Figure 1, key 3. Specimen holder, Figure 1, key 4, thickness 1 mm 0,1 mm with a hole of 75 mm 1 mm diameter positioned so that the centre of the hole in the specimen holder is vertically al

34、igned with the centre of the hole in the specimen table. E le c t r o s t at ic f ie ld me t er, Figure 1, key 3, a rotating sector type with an effective diameter of 40 mm to 45 mm positioned at a distance of 50 mm 1 mm from the specimen used to detect the electrostatic potential generated by rubbi

35、ng. Controller, Figure 1, key 5. Recorder, Figure 1, key 6. Calibration electrode, Figure 1, key 7. Calibration electrode pull-up handle, Figure 1, key 8. Metal and other conductive components of the test apparatus shall be connected to the ground with a resistance to the ground of less than 10 .2 I

36、SO 2015 All rights reserved ISO 18080-4:2015(E) 1 6 5 3 8 Key 1 rubbing unit 2 specimen table 3 electrostatic fieldmeter 4 specimen holder 5 controller 6 recorder 7 calibration electrode 8 calibration electrode pull-up handle 9 specimen Figure 1 Testing apparatus for measurement of friction charged

37、potential and potential decay Dimensions in millimetres 62 1 1 Key 1 edge curvature radius, approximately 6 mm 2 curvature radius, approximately 250 mm Figure 2 Specimen supporting pedestal 6.2 Specimen supporting pedestal, Figure 2, made of wood such as magnolia or oak with a resistance to the grou

38、nd when installed in the test apparatus of 10 7 to 10 10 measured under the conditions specified in Clause 5. The pedestal is positioned under the specimen (Figure 1, key 9) and is used to support the specimen during rubbing. The top face of the pedestal is higher than the specimen table by approxim

39、ately 1 mm, as shown in Figure 4. ISO 2015 All rights reserved 3 ISO 18080-4:2015(E) 6.3 Rubbing unit, Figure 3, made from wood (as in 6.2) of dimensions 130 mm 1 mm by 70 mm 1 mm, thickness 27 mm 1 mm with a 10 mm 1 mm recess stuffed with cotton batting and covered by cotton fabric. The cotton fabr

40、ic is described in ISO 105-F02. The rubbing unit is mounted on the arm frame and the position of the frame is adjusted to determine the pressure between the specimen and the rubbing unit. The pressure is set so that the distance between the specimen and rubbing unit is reduced by 3 mm 0,1 mm from th

41、e initial point of contact. Dimensions in millimetres 1 2 10 1 37 39 17 1 Key 1 cotton cloth 2 cotton batting Figure 3 Rubbing unit 6.4 Rubbing fabric. Use wool or cotton fabric described in ISO 105-F01 or ISO 105-F02. Other rubbing fabrics may be used with the consensus of concerned parties. If oth

42、er rubbing fabrics are used, their details shall be recorded in the test report. 6.5 Recorder, with a full-scale response time of 0,3 s or less. 6.6 Neutralization apparatus, self-discharge type or voltage imposing type. 6.7 Adhesive tape, double-sided or single-sided pressure-sensitive adhesive tap

43、e. 6.8 Oven, used to dry samples at (70 3) C. 7 Movement of the test apparatus The automated movement of the test apparatus is as follows: the specimen table moves to position above the rubbing pedestal; the rubbing pedestal moves up and presses the specimen from the back side; the rubbing unit rubs

44、 the specimen one way, such as left to right, with a speed of two times per second; the rubbing unit moves up and returns to the starting position without rubbing; the rubbing unit rubs the specimen one way again; after 10 times of rubbing, the rubbing pedestal moves down immediately; the specimen t

45、able moves under the fieldmeter in a time that is short compared to the shortest decay time to be measured; the electric potential is recorded during potential decay; the electrostatic potential is recorded against time.4 ISO 2015 All rights reserved ISO 18080-4:2015(E) 1 2 3 Key 1 rubbing unit 2 sp

46、ecimen 3 specimen table 4 rubbing pedestal Figure 4 Position of specimen supporting pedestal, rubbing unit, and specimen 8 Preparation of specimen 8.1 Sampling Prepare a sample for the test from a fabric roll or from clothing. Careful handling and the use of clean, lint free gloves is recommended to

47、 avoid contaminating the samples. 8.2 Cleansing of sample 8.2.1 General In case of cleansing of samples is required, 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

48、such deviations shall be included in the test report. 8.2.2 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 natural drying procedures according to ISO 6330. Residu

49、al detergent from previous use of the washing machine may affect test results. Careful cleaning of the washing machine before use is recommended. 8.2.3 Dry cleaning Dry clean samples according to ISO 3175-2 or ISO 3175-3. 8.3 Conditioning of sample Condition samples as follows: dry the samples for one hour at 70 C; place the samples in the conditioning atmosphere specified in Clause 5 for at least 24 h. ISO 2015