《ISO-15167-1999.pdf》由会员分享，可在线阅读，更多相关《ISO-15167-1999.pdf（14页珍藏版）》请在三一文库上搜索。
1、AReference number ISO 15167:1999(E) INTERNATIONAL STANDARD ISO 15167 First edition 1999-07-15 Petroleum products Determination of particulate content of middle distillate fuels Laboratory filtration method Produits ptroliers Dtermination de la teneur en particules des distillats moyens Mthode de fil
2、tration en laboratoire Copyright International Organization for Standardization Provided by IHS under license with ISO Licensee=NASA Technical Standards 1/9972545001 Not for Resale, 04/22/2007 19:56:58 MDTNo reproduction or networking permitted without license from IHS -,-,- ISO 15167:1999(E) ISO 19
3、99 All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form or by any means, electronic or mechanical, including photocopying and microfilm, without permission in writing from the publisher. International Organization for Standardization
4、Case postale 56 CH-1211 Genve 20 Switzerland Internetisoiso.ch Printed in Switzerland ii ContentsPage 1 Scope1 2 Normative references1 3 Test and definitions.2 4 Principle2 5 Reagents and materials.2 6 Apparatus.2 7 Preparation of sample containers and apparatus5 8 Samples and sampling5 9 Preparatio
5、n of membrane filters 5 10 Procedure.6 11 Calculation7 12 Expression of results 7 13 Precision.8 14 Test report8 Copyright International Organization for Standardization Provided by IHS under license with ISO Licensee=NASA Technical Standards 1/9972545001 Not for Resale, 04/22/2007 19:56:58 MDTNo re
6、production or networking permitted without license from IHS -,-,- ISOISO 15167:1999(E) iii 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 o
7、ut 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 liaison with ISO, also take part in the work. ISO c
8、ollaborates closely with the International Electrotechnical Commission (IEC) on all matters of electrotechnical standardization. International Standards are drafted in accordance with the rules given in the ISO/IEC Directives, Part 3. Draft International Standards prepared by the technical committee
9、s are circulated to the member bodies for voting. Publication as an International Standard requires approval by at least 75 % of the member bodies casting a vote. International Standard ISO 15167 was prepared by Technical Committee ISO/TC 28, Petroleum products and lubricants. Copyright Internationa
10、l Organization for Standardization Provided by IHS under license with ISO Licensee=NASA Technical Standards 1/9972545001 Not for Resale, 04/22/2007 19:56:58 MDTNo reproduction or networking permitted without license from IHS -,-,- Copyright International Organization for Standardization Provided by
11、IHS under license with ISO Licensee=NASA Technical Standards 1/9972545001 Not for Resale, 04/22/2007 19:56:58 MDTNo reproduction or networking permitted without license from IHS -,-,- INTERNATIONAL STANDARD ISOISO 15167:1999(E) 1 Petroleum products Determination of particulate content of middle dist
12、illate fuels Laboratory filtration method WARNING The use of this International Standard may involve hazardous materials, operations and equipment. This International Standard does not purport to address all of the safety problems associated with its use. It is the responsibility of the user of this
13、 International Standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use. 1 Scope This International Standard specifies a method for the determination of the particulate content of middle distillate fuels with a closed flash
14、point of 38 C or higher, determined in accordance with ISO 2719, ISO 3679 or ISO 13736. It is not applicable to light distillate fuels (gasolines) or to aviation fuels. A gravimetric limitation of the contamination of middle distillate fuels used in diesel engines and domestic applications should be
15、 used for the control of filter plugging and other operational problems, and this procedure is applicable up to 25 g/m3. The precision of this procedure is only valid if the results are obtained strictly in accordance with the provisions of this International Standard, particularly in respect of the
16、 material used for the filter (see the note in 6.9), sample size and filtration of the complete sample. 2 Normative references The following normative documents contain provisions which, through reference in this text, constitute provisions of this International Standard. For dated references, subse
17、quent amendments to, or revisions of, any of these publications do not apply. However, parties to agreements based on this International Standard are encouraged to investigate the possibility of applying the most recent editions of the normative documents indicated below. For undated references, the
18、 latest edition of the normative document referred to applies. Members of ISO and IEC maintain registers of currently valid International Standards. ISO 2719:1988, Petroleum products and lubricants Determination of flash point Pensky-Martens closed cup method. ISO 3170:1988, Petroleum liquids Manual
19、 sampling. ISO 3171:1988, Petroleum liquids Automatic pipeline sampling. ISO 3679:1983, Paints, varnishes, petroleum and related products Determination of flashpoint Rapid equilibrium method. ISO 3696:1987, Water for analytical laboratory use Specification and test methods. ISO 4259:1992, Petroleum
20、products Determination and application of precision data in relation to methods of test. ISO 13736:1997, Petroleum products and other liquids Determination of flash point Abel closed cup method. Copyright International Organization for Standardization Provided by IHS under license with ISO Licensee=
21、NASA Technical Standards 1/9972545001 Not for Resale, 04/22/2007 19:56:58 MDTNo reproduction or networking permitted without license from IHS -,-,- ISO 15167:1999(E) ISO 2 3 Term and definition For the purposes of this International Standard, the following term and definition applies. 3.1 particulat
22、e content quantity of material retained on a filter medium of nominal porosity 0,8 m, expressed as grams per cubic metre (g/m3) of the sample, after being subjected to the provisions of this International Standard 4 Principle A specified volume of sample is filtered through a preweighed test membran
23、e filter and the increase in membrane filter mass is determined after washing and drying. The change in mass of a control membrane filter located immediately below the test membrane filter is also determined. The particulate content is determined from the increase in mass of the test membrane filter
24、 relative to the increase in mass of the control membrane filter. 5 Reagents and materials During the analysis, unless otherwise stated, use only reagents of recognized analytical grade. Unless otherwise specified, use water of a purity equivalent to grade 3 of ISO 3696. 5.1 Propan-2-ol (isopropyl a
25、lcohol), commercial grade, filtered through a membrane filter of 0,45 m or less nominal porosity. 5.2 Liquid detergent, water soluble. 5.3 Flushing fluid, heptane or 2,2,4-trimethylpentane, filtered through a membrane filter of 0,45 m or less nominal porosity before use. 5.4 Tap water, assumed to be
26、 clean and generally potable. Where suitable supplies cannot be guaranteed, the available reticulated water shall be filtered as in 5.3, or commercially available non-carbonated bottled water used as a substitute. 6 Apparatus 6.1 Analytical balance, with a single- or double-pan and a weighing accura
27、cy of 0,1 mg or better. 6.2 Air ionizer, to be used in the balance case. NOTE 1When using a solid pan balance, the air ionizer may be omitted provided that, when weighing a membrane filter, it is placed on the pan so that no part protrudes over the edge of the pan. NOTE 2Air ionizers should be repla
28、ced within one year of manufacture. 6.3 Oven, of the static type (without fan-assisted circulation), explosion-proof, capable of maintaining a temperature of 90 C 5 C. 6.4 Petri dishes, approximately 125 mm in diameter, with removable glass supports for membrane filters. NOTE Small watch glasses hav
29、e been found suitable for supporting the membrane filters. 6.5 Forceps, of stainless steel, flat-bladed, with non-serrated, non-pointed tips. 6.6 Laboratory tongs, of stainless steel or other suitable non-corrosive material, capable of handling container closures. Copyright International Organizatio
30、n for Standardization Provided by IHS under license with ISO Licensee=NASA Technical Standards 1/9972545001 Not for Resale, 04/22/2007 19:56:58 MDTNo reproduction or networking permitted without license from IHS -,-,- ISO ISO 15167:1999(E) 3 6.7 Vacuum system, of sufficient capacity to maintain an a
31、bsolute pressure over the range of 1 kPa to 100 kPa. 6.8 Test membrane filters, plain, 47 mm in diameter, of nominal pore size 0,8 m, composed of nylon or cellulose ester (see the note in 6.9). 6.9 Control membrane filters, 47 mm in diameter, of nominal pore size 0,8 m, nylon or cellulose ester filt
32、ers, either plain or gridded for identification. NOTE The precision of this International Standard was obtained using only nylon filters. 6.10 Flushing fluid dispenser, normally fitted with a membrane filter of nominal pore size 0,45 m or less, as shown in Figure 1. NOTE A standard laboratory wash b
33、ottle may be used provided that the flushing fluid is pre-filtered through a membrane filter of nominal pore size 0,45 m or less, and precautions are taken to maintain appropriate cleanliness of the interior of the wash bottle. 6.11 Filtration apparatus, as illustrated in Figure 2. 6.11.1 Filter fun
34、nel, consisting of a funnel and funnel base with a filter support such that a membrane filter can be gripped between the sealing surface and the base by means of a locking ring or spring-action clamp. 6.11.2 Receiving flasks, of 1 litre capacity, preferably graduated, to receive the filtered sample
35、and flushing fluid washings separately (see 10.1 and 10.10). The flasks shall be of borosilicate glass, fitted with a sidearm to connect to the safety flask (6.11.3), and via this to the vacuum system. When used in the arrangement shown in Figure 2, they shall be protected against implosion. Suitabl
36、e protection measures against implosion include the use of a tight-fitting strong plastic mesh, or taping the flask to minimize the dispersion of glass splinters. 6.11.3 Safety flask, of minimum capacity 600 ml, of borosilicate glass, fitted with a sidearm connected to the receiving flask (6.11.2),
37、and protected against implosion (see the preceding paragraph). 6.11.4 Ground/bond wire, of diameter 0,912 mm to 2,59 mm, bare, stranded, flexible, stainless steel or copper, installed in the flasks and grounded (earthed) as illustrated in Figure 2. 6.12 Plastic film, made of polyethylene or any othe
38、r clear film that is resistant to the reagents and the sample. NOTE Clean aluminium foil is also suitable. 6.13 Graduated cylinders, made of borosilicate glass, of capacities between 100 ml and 500 ml. Copyright International Organization for Standardization Provided by IHS under license with ISO Li
39、censee=NASA Technical Standards 1/9972545001 Not for Resale, 04/22/2007 19:56:58 MDTNo reproduction or networking permitted without license from IHS -,-,- ISO 15167:1999(E) ISO 4 Key 1 Reagent-resistant plastic tubing 2 Inert support screen 3 Membrane filter, 0,45 mm 4 Solvent-filtering dispenser Fi
40、gure 1 Apparatus for filtering and dispensing flushing fluid Key 1Vacuum tubing 2Funnel 3Clamp 4Wire to ground 5Receiving flask 6Safety flask 7Laboratory ground (typical) 8To vacuum pump 9Insure seal between tube, hose and wire with appropriate sealant 10 File clamp jaws and handle where wire attach
41、es to bare metal Figure 2 Apparatus for determining particulate content Copyright International Organization for Standardization Provided by IHS under license with ISO Licensee=NASA Technical Standards 1/9972545001 Not for Resale, 04/22/2007 19:56:58 MDTNo reproduction or networking permitted withou
42、t license from IHS -,-,- ISO ISO 15167:1999(E) 5 7 Preparation of sample containers and apparatus 7.1 Clean strictly, in the manner described in 7.2 to 7.7, all the surfaces of all components of the sample containers (after removal of any labels, tags, etc.), sampling vessels, and parts of the appar
43、atus that are a) likely to come into contact with the sample or flushing fluid; b) capable of transferring extraneous matter to the filter. 7.2 Wash with warm tap water (5.4) containing detergent (5.2). 7.3 Rinse thoroughly with warm tap water. 7.4 Rinse thoroughly with water, handling container cap
44、s only externally, with clean laboratory tongs (6.6) during this and subsequent washings. 7.5 Rinse thoroughly with propan-2-ol (5.1). 7.6 Rinse thoroughly with flushing fluid (5.3). 7.7 Cover the top of the sample container and the funnel opening of the assembled filtration apparatus with clean pla
45、stic film (6.12), previously rinsed with flushing fluid and air dried. 8 Samples and sampling 8.1 Ensure that only sampling equipment cleaned in accordance with clause 7 is used during sampling. As far as possible, sampling points and fixed equipment shall be brought to equivalent cleanliness. Every
46、 effort shall be made to avoid contamination from ambient conditions. 8.2 Use only containers of capacity 1 litre 0,15 litre. 8.3 Glass containers have an advantage in terms of the visibility of the interior for the efficiency of flushing, but clear glass containers risk particulate generation from
47、ultraviolet light exposure. If clear glass containers are used, ensure that the sample receives the minimum exposure to light. Epoxy-lined cans, polytetrafluorethylene (PTFE) or high-density unpigmented linear polyethylene containers are also suitable. 8.4 The container shall be filled to 85 % to 95
48、 % of its capacity. 8.5 Samples shall preferably be taken dynamically from a sampling loop in a distribution line or from the flushing line of a field sampling kit, in accordance with the principles specified in ISO 3171. Ensure that the line to be sampled is flushed with fuel before taking the sample. 8.6 Where it is only possible to obtain samples from static storage, follow the procedures given in ISO 3170, ensuring that the final sample has not p