1、BSI Standards Publication PD ISO/TR 19686-1:2014 Petroleum products Equivalency of test method determining the same property Part 1: Atmospheric distillation of petroleum productsPD ISO/TR 19686-1:2014 PUBLISHED DOCUMENT National foreword This Published Document is the UK implementation of ISO/TR 19
2、686-1:2014. The UK participation in its preparation was entrusted to Technical Committee PTI/13, Petroleum Testing and Terminology. 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 provis
3、ions of a contract. Users are responsible for its correct application. The British Standards Institution 2014. Published by BSI Standards Limited 2014 ISBN 978 0 580 85784 3 ICS 75.080 Compliance with a British Standard cannot confer immunity from legal obligations. This Published Document was publi
4、shed under the authority of the Standards Policy and Strategy Committee on 31 December 2014. Amendments issued since publication Date Text affectedPD ISO/TR 19686-1:2014 ISO 2014 Petroleum products Equivalency of test method determining the same property Part 1: Atmospheric distillation of petroleum
5、 products Produits ptroliers quivalence des mthodes dessai dterminant la mme proprit Partie 1: Distillation atmosphrique de produits ptroliers TECHNICAL REPORT ISO/TR 19686-1 First edition 2014-09-15 Reference number ISO/TR 19686-1:2014(E)PD ISO/TR 19686-1:2014ISO/TR 19686-1:2014(E)ii ISO 2014 All r
6、ights reserved COPYRIGHT PROTECTED DOCUMENT ISO 2014 All rights reserved. Unless otherwise 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
7、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 Case postale 56 CH-1211 Geneva 20 Tel. + 41 22 749 01 11 Fax + 41 22 749 09 47 E-mail copyrightiso.org Web www.iso.org Published in Swi
8、tzerlandPD ISO/TR 19686-1:2014ISO/TR 19686-1:2014(E) ISO 2014 All rights reserved iii Contents Page Foreword iv Introduction v 1 Scope . 1 2 Comparison 1 2.1 Reasons for divergence 1 2.2 What does equivalency mean . 1 3 Questionnaire for checking similarities of test methods . 2 4 Conclusion . 6 Bib
9、liography 7PD ISO/TR 19686-1:2014ISO/TR 19686-1:2014(E) Foreword ISO (the International Organization for Standardization) is a worldwide federation of national standards bodies (ISO member bodies). The work of preparing International Standards is normally carried out through ISO technical committees
10、. 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 take part in the work. ISO collaborates closely with the Intern
11、ational 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/IEC Directives, Part 1. In particular the different approval criteria needed for the diff
12、erent 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 rights. ISO sha
13、ll 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 this document
14、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 to Trade (TB
15、T) see the following URL: Foreword - Supplementary information The committee responsible for this document is ISO/TC 28, Petroleum products and lubricants. ISO/TR 19686 consists of the following parts, under the general title Petroleum products Equivalency of test methods determining the same proper
16、ty: Part 1: Atmospheric distillation of petroleum productsiv ISO 2014 All rights reservedPD ISO/TR 19686-1:2014ISO/TR 19686-1:2014(E) Introduction At the 2010 ISO/TC 28 plenary meeting in Porto, ISO/TC 28 established a working group to investigate the development of test method equivalency tables. M
17、otivation for this proposal was the discussion about identities, equivalences or differences of test methods related to fuels. It was concluded that a more structured approach would be useful. As the task of determining equivalency appeared to be a difficult and complex one, it was decided to take i
18、nto account each property one after the other. The WG started with distillation. Follow up is to continue with the review of other methods that are intended to be presented in other parts of this Technical Report. ISO 2014 All rights reserved vPD ISO/TR 19686-1:2014PD ISO/TR 19686-1:2014Petroleum pr
19、oducts Equivalency of test method determining the same property Part 1: Atmospheric distillation of petroleum products 1 Scope This Technical Report describes the evaluation executed by ISO in order to determine the equivalency of test methods used on a global scale in quality specifications of petr
20、oleum products, lubricants, and fuels. This part of ISO/TR 19686 focuses on whether the standardized test methods for determining atmospheric distillation characteristics are to be considered technically equivalent. This is to guide laboratories that use one standard and wish to know if they can als
21、o certify product towards the others. 2 Comparison 2.1 Reasons for divergence When compared test methods have the same “root”, i.e. can be traced back to the same base document(s), then at the time of first publication, these methods can be designated “identical”. Over time, however, both methods wo
22、uld undergo independent revision rather, therefore the designation “identical” will slowly move towards “equivalent” or even to “different”. 2.2 What does equivalency mean The designations “identical, equivalent or different” can be factored into a set of important analytical parameters which do aff
23、ect applicability, results and precision as follows: a) test method scope (applicability to specific product groups); b) test method scope (measurement ranges); c) interferences (matrix effects/disturbances); d) test equipment/apparatus; e) procedural items (internal/external standard, calibration,
24、sample preparation, etc); f) precision, RRT information. Any comparison of test methods should give comprehensive answers to the above mentioned issues. Several approaches to these “identity questions” sometimes reduce the above findings to categories such as: identical: same technical scope, proced
25、ures, results, and precision, only editorial differences due to different editorial styles; equivalent: some differences introduced in technical aspects such as updated precision, extension of scope or range, etc.; different: introduction of significant technical changes such as new equipment, diffe
26、rent calibration, or calculations, has changed the test result or the way the test result can be used. TECHNICAL REPORT ISO/TR 19686-1:2014(E) ISO 2014 All rights reserved 1PD ISO/TR 19686-1:2014ISO/TR 19686-1:2014(E) 3 Questionnaire for checking similarities of test methods The questionnaire presen
27、ted in Table 1 has been used to serve as a starting point for a more structured approach for such test method comparison. When more than one precision statement is available, then it would be prudent to also assess the significance of any differences for r = f(x) and R = f(x) after collection of the
28、 details from the round robin data of the test methods. Seven main issues have been compared for ISO 3405 (which is also known as IP 123 and has been adopted by CEN) and ASTM D86. a) the measured property; b) the instrumentation used; c) the calibration; d) the sampling and sample handling; e) the t
29、est method procedure as such; f) the precision information and the data on which it has been determined; g) any other information of importance. After the requested details had been compiled, a consensus opinion on the extent to which the compared test methods are identical/equivalent/different and
30、which steps would be necessary to increase test similarities has been developed.2 ISO 2014 All rights reservedPD ISO/TR 19686-1:2014ISO/TR 19686-1:2014(E) Table 1 Test method comparison matrix ASTM D8611b ISO 3405 Comparison A Issues concerning measured properties A.1 Which properties are determined
31、 (also which units)? Boiling range characteristics Percentage evaporated %v/v or percentage recovered %v/v Distillation characteristics Percentage evaporated %v/v or percentage recovered %v/v Identical A.2 What exactly is the principle of measure- ment? Sample is assigned in four groups and 100 ml s
32、ample distilled under specified conditions Sample is assigned in four groups and 100ml sample dis- tilled under specified conditions Identical A.3 Which products can the test method be applied to? Light and middle distillates, automotive spark-ignition engine fuels with or with- out oxygenates, avia
33、tion gasolines, aviation turbine fuels, diesel fuels, biodiesel blends up to 20 %, marine fuels, special petroleum spir- its, naphthas, white spirits, kerosines, and grades 1 and 2 burner fuels. D86 is applicable to ethanol- fuel blends such as Ed75 and Ed85 or other ethanol-fuel blends with greater
34、 than 10 v% ethanol. Light distillates (automotive engine petrols with up to 10 % v/v ethanol and aviation petrols) and middle distillates (avia- tion turbine fuels, kerosenes, diesel, diesel with up to 20 % v/v FAME, burner fuels, and marine fuels that have no appreciable quantities of residua) der
35、ived from petroleum and having IBP above 0 C and end points below approximately 400 C. Equivalent A.4 What is the measure- ment range (per prop- erty)? Automated procedure: IBP: 20 to 70 C E10: 35 to 95 C E50: 65 to 220 C E90: 110 to 245 C FBP: 135 to 260 C IBP: 145 to 220 C T10: 160 to 265 C T50: 1
36、70 to 295 C T90: 180 to 340 C T95: 260 to 340 C FBP: 195 to 365 C Automated procedure: IBP: 20 to 70 C E10: 35 to 95 C E50: 65 to 220 C E90: 110 to 245 C FBP: 135 to 260 C IBP: 145 to 220 C T10: 160 to 265 C T50: 170 to 295 C T90: 180 to 340 C T95: 260 to 340 C FBP: 195 to 365 C Identical A.5 Which
37、components can interfere with the determination? n.a. n.a. A.6 Are there any matrix effects to consider? n.a. n.a. B Issues concerning instrumentation B.1 List all required equip- ment including specific manufacturers if any are mentioned Figures and dimension of apparatus are mentioned Figures and
38、dimension of appa- ratus are mentioned Identical C Issues concerning calibration ISO 2014 All rights reserved 3PD ISO/TR 19686-1:2014ISO/TR 19686-1:2014(E) ASTM D8611b ISO 3405 Comparison C.1 What procedure is used to prepare calibration standards? If calibra- tion standards are pur- chased, what re
39、quire- ments are placed on those standards? Reagent grade toluene and hexadecane Reagent grade toluene and hexa- decane Identical C.2 Are the standards Internal or external to the measurement of the tested property in the test sample? External External Identical C.3 What is the Calibra- tion procedu
40、re? What calculations are done to complete the calibra- tion? The accuracy and the calibration of the electronic circuitry or computer algo- rithms, or both, shall be veri- fied by the use of a standard precision resistance bench. Verification of the calibration of temperature measuring devices shal
41、l be conducted by distilling toluene (or cetane) and comparing the 50 % recovered temperature with that shown in Table 4. The calibration of the level follower assembly shall be verified. The barometric reading shall be verified. The electronic circuit for resist- ance thermometers shall be veri- fi
42、ed against a standard precision resistance. The response of the temperature measurement sys- tem itself shall also be verified by procedure 1 or 2: 1) Distil toluene or cetane and compare the 50 % v/v recovered temperature with that shown by the mercury-in-glass thermom- eter when carrying out a man
43、ual test under the same conditions 2) Distill a certified reference fluid of a specific product group under manual conditions using the mercury-in-glass thermom- eter followed by the alternative temperature measurement device/system. The calibration of the level fol- lower assembly shall be verified
44、. The barometric reading shall be verified. Equivalent D Sample handling and preparation D.1 Sample handling details? Yes: sampling (ASTM D4057 or D4177), sample storage, and sample conditioning prior to analysis. Also proce- dure for wet samples. Yes: sampling (ISO 3170 or ISO 3171), sample storage
45、, and sample conditioning prior to analysis. Also procedure for wet samples. Equivalent D.2 Sample preparation procedure? See above See above Identical E Procedural test method detailsTable 1 (continued) 4 ISO 2014 All rights reservedPD ISO/TR 19686-1:2014ISO/TR 19686-1:2014(E) ASTM D8611b ISO 3405
46、Comparison E.1 What is the test method procedure? A 100 ml true representa- tive retest sample is distilled under specified conditions. Systematic observed ther- mometers reading, volumes of condensates recovered volumes of residue remains in distillation flask and loss of distillation. Thermometer
47、readings are corrected for barometric pressure. A 100 ml true representative retest sample is distilled under specified conditions. System- atic observed thermometers reading, volumes of condensates recovered volumes of residue remains in distillation flask and loss of distillation. Thermometer read
48、ings are corrected for baro- metric pressure. Identical E.2 What measurement is made? Volatility of product in term of IBP, % Vol recovery, FBP, and % residue Volatility of product in term of IBP, % Vol recovery, FBP, and % residue Identical E.3 Requirements for reporting/rounding of results? Report
49、 barometric pressure to the nearest 0,1 kPa Manual method: report volu- metric readings to the near- est 0,5 and all temperatures to the nearest 0,5 C Automated method: report volumetric readings to the nearest 0,1 and all tempera- tures to the nearest 0,1 C Manual method: report volu- metric readings to the nearest 0,5 and all temperatures to the nearest 0,5 C Automated method: report volu- metric readings to the nearest 0,1 and all temperatures to the nearest 0,1 C Identical E.4 What QC
