1、BSI Standards Publication PD ISO/TS 19858:2015 Forestry machines Portable chainsaws Test method for evaluating saw chain oil lubricityPD ISO/TS 19858:2015 PUBLISHED DOCUMENT National foreword This Published Document is the UK implementation of ISO/TS 19858:2015. The UK participation in its preparati
2、on was entrusted to Technical Committee AGE/29, Forestry machinery. A list of organizations represented on this committee can be obtained on request to its secretary. This publication does not purport to include all the necessary provisions of a contract. Users are responsible for its correct applic
3、ation. The British Standards Institution 2015. Published by BSI Standards Limited 2015 ISBN 978 0 580 89251 6 ICS 65.060.80 Compliance with a British Standard cannot confer immunity from legal obligations. This Published Document was published under the authority of the Standards Policy and Strategy
4、 Committee on 30 September 2015. Amendments issued since publication Date Text affectedPD ISO/TS 19858:2015 ISO 2015 Forestry machines Portable chain- saws Test method for evaluating saw chain oil lubricity Machines forestires Trononneuses portables Mthode dessai pour lvaluation de la lubrication lh
5、uile de la chane de la scie TECHNICAL SPECIFICATION ISO/TS 19858 Reference number ISO/TS 19858:2015(E) First edition 2015-08-15PD ISO/TS 19858:2015ISO/TS 19858:2015(E)ii ISO 2015 All rights reserved COPYRIGHT PROTECTED DOCUMENT ISO 2015, Published in Switzerland All rights reserved. Unless otherwise
6、 specified, no part of this publication may be reproduced or utilized 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
7、 or ISOs member body in the country of the requester. ISO copyright 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.orgPD ISO/TS 19858:2015ISO/TS 19858:2015(E)Foreword iv 1 Scope . 1 2 Normative references 1 3
8、 T erms and definitions . 1 4 Test rig . 1 4.1 General . 1 4.2 Major components . 2 5 Test procedure 2 5.1 Chain extension after the run in period. 2 5.2 Chain extension and wear of the guide bar after the long duration test . 2 6 Measurements . 3 6.1 Chain extension 3 6.2 Guide bar wear 5 6.3 Tempe
9、rature 6 7 Information to be reported . 7 8 Results . 7 ISO 2015 All rights reserved iii Contents PagePD ISO/TS 19858:2015ISO/TS 19858:2015(E) Foreword ISO (the International Organization for Standardization) is a worldwide federation of national standards bodies (ISO member bodies). The work of pre
10、paring International Standards is normally carried out through ISO 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
11、 liaison with ISO, also take part in the work. ISO collaborates closely with the International Electrotechnical Commission (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/IE
12、C Directives, Part 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
13、that some of the 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
14、 declarations received (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 inform
15、ation about ISOs adherence to the WTO principles in the Technical Barriers to Trade (TBT) see the following URL: Foreword - Supplementary information The committee responsible for this document is ISO/TC 23, Tractors and machinery for agriculture and forestry, Subcommittee SC 17, Manually portable f
16、orest machinery.iv ISO 2015 All rights reservedPD ISO/TS 19858:2015TECHNICAL SPECIFICATION ISO/TS 19858:2015(E) Forestry machines Portable chain-saws Test method for evaluating saw chain oil lubricity 1 Scope This Technical Specification defines test procedures for classifying the lubrication abilit
17、y of saw chain lubrication oils when using guide bar and saw chain. These test procedures create a reproducible replication of the stress conditions experienced by the saw chain and guide bar during sawing. The test shows the capacity of the lubricant for reducing the wear between friction partners.
18、 This enables the manufacturers of chain saws to include specifications for recommended saw chain lubrication oils in the owners manual. The test rig is based on a design produced by the Swedish test commission Svensk Maskinprovning (SMP). The test procedures also take into account the long-term pra
19、ctical experience of the Kuratorium fr Waldarbeit und Forsttechnik e.V (KWF) in testing bio-degradable chain lubrication oils. 2 Normative references The following documents, in whole or in part, are normatively referenced in this document and are indispensable for its application. For dated referen
20、ces, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. ISO 2049, Petroleum products Determination of colour (ASTM scale) ISO/IEC 17025, General requirements for the competence of testing and calibration laborator
21、ies 3 T erms a nd definiti ons For the purposes of this document, the following terms and definitions apply. 3.1 saw chain without teeth saw chain where the cutting links are replaced by links without tooth or bumpers 3.2 loading wheel rubber coated wheel that applies the contact force to the saw ch
22、ain from below Note 1 to entry: See Figure 1. 4 Test rig 4.1 General The test rig is designed so that the saw chain is driven by the rim sprocket. The saw chain speed is adjusted by controlling the output speed of the motor driving the sprocket. See Figure 1. ISO 2015 All rights reserved 1PD ISO/TS
23、19858:2015ISO/TS 19858:2015(E) 4.2 Major components The major components include the following: power source and a connecting device that transfers rotational energy to the cutting attachment; means of attachment for the cutting attachment; loading wheel with a diameter of 185 mm 3 mm; cutting attac
24、hment comprising of the following: a guide bar OREGON Laser Tip 16” with solid nose, Pitch: 3/8, Gauge: 0,05 “; a saw chain without cutter or bumper links Oregon TYP xxxLG GX 100R, number of rivets = 118; Oil pump with an adjustable dosage of 1 ml/min to 10 ml/min, with precision 0,1 ml/min. 190 15
25、CT TM CL Key CL contact load; 50 N CT chain tension; 80 N TM measuring point temperature Figure 1 Test rig with cutting attachment and loading wheel 5 Test procedure 5.1 Chain extension after the run in period Measure the chain extension after 10 min. 5.2 Chain extension and wear of the guide bar af
26、ter the long duration test The wear of the guide bar and the extension of the saw chain shall be measured after 180 min. The surface temperature of the guide bar shall be measured during the test. The test shall be repeated with a new saw chain and new guide bar.2 ISO 2015 All rights reservedPD ISO/
27、TS 19858:2015ISO/TS 19858:2015(E) Before starting the tests and before measuring the guide bar wear and saw chain extension, both guide bar and saw chain must be cleaned with an ultra-sonic cleaner. Table 1 Test parameter Run time min Chain speed m/s Stretching force (F2) N Loading force (N1) N Lubr
28、icant flow ml/min Run in period (5.1) 10 20 80 50 2 Long duration (5.2) 180 20 80 50 2 6 Measurements 6.1 Chain extension To perform the measurement, the chain shall be mounted on two chain sprockets which are fastened to a fixed and a flexible mounting device (Figure 2a). The chain shall be tension
29、ed by applying a load of 50 N (2 N). The calculation of the chain extension shall be carried out based on the measurement of the defined distance on two separate sectors of the chain (n). The overall extension of the chain shall then be calculated with the mean extension determined on these two sect
30、ors. ISO 2015 All rights reserved 3PD ISO/TS 19858:2015ISO/TS 19858:2015(E) RS L n W “X” a) Equipment used for measuring chain extension4 ISO 2015 All rights reservedPD ISO/TS 19858:2015ISO/TS 19858:2015(E) “X” b) Detailed view of the chain mounting (Detail “X” of Figure 2) Key RS rim sprocket, 9 te
31、eth n number of rivets L length measuring device “X” detail W weight; 50 N Figure 2 Measuring chain extension 6.2 Guide bar wear Abrasion of the guide bar shall be measured with a dial indicator with a measuring range of 0 mm to 50 mm and an accuracy of 0,01 mm (Figure 3a). The wear is the depth of
32、the material lost from the surface where the saw chain is pressed against the guide bar by the loading wheel (Figure 3b). Lateral and vertical abrasion is measured with a ball head. ISO 2015 All rights reserved 5PD ISO/TS 19858:2015ISO/TS 19858:2015(E) MP 190 a) Equipment used for measuring guide ba
33、r wear B b) Ball head to measure the guide bar wear depth Key MP measuring point 4 mm diameter Figure 3 Measuring guide bar wear 6.3 Temperature The temperature is measured at point T, using a non-contact thermometer with a measuring range of 0 C to 300 C or more and an accuracy of 3 C. 6 ISO 2015 A
34、ll rights reservedPD ISO/TS 19858:2015ISO/TS 19858:2015(E) 7 Information to be reported The test report shall contain at least the following information. T a b l e 2 I d e n t i f i c a t i o n o f t h e t e s t e d l u b r i c a t i o n o i l Test Nr. Colour ISO 2049 Viscosity mm 2 /s 40 ISO 17025
35、100C Viscosity index ISO 17025 Table 3 Extension of saw chain Chain Beginning of test (chain length after the run-in period, see 5.1) End of test (chain length after the long duration test, see 5.2) Calculated overall extension n = 118 Nr.1 n= mm n = mm mm Nr.2 n= mm n= mm mm n = number of chain riv
36、ets Table 4 Wear of guide bar Guide bar Beginning of test End of test Difference (wear depth) Nr.1 mm mm mm Nr.2 mm mm mm Table 5 Temperature at the guide bar surface Beginning of test C 0 min 10 min 60 min 120 min 180 min Nr.1 C C C C C Nr.2 C C C C C 8 Results No requirements are set. The measured
37、 values are to be seen as a basis for determining the lubrication ability of the saw chain lubrication oil under practical conditions. The following values are to be seen as guidance. If these values are not exceeded, the lubrication ability can be considered as sufficient. Overall chain extension:
38、2 mm; Wear (depth) of the guide bar: 1,5 mm; Surface temperature after 180 min: 85 C. ISO 2015 All rights reserved 7PD ISO/TS 19858:2015ISO/TS 19858:2015(E) ISO 2015 All rights reserved IC S 65.060.80 Price based on 7 pagesThis page deliberately left blankBSI is the national body responsible for pre
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