1、BS EN ISO 8049:2016Ferronickel shot Samplingfor analysis (ISO 8049:2016)BSI Standards PublicationWB11885_BSI_StandardCovs_2013_AW.indd 1 15/05/2013 15:06BS EN ISO 8049:2016 BRITISH STANDARDNational forewordThis British Standard is the UK implementation of EN ISO 8049:2016. It supersedes BS EN 28049:
2、1992 which is withdrawn.The UK participation in its preparation was entrusted to TechnicalCommittee I/-, Miscellaneous standards materials and chemicals.A list of organizations represented on this committee can beobtained on request to its secretary.This publication does not purport to include all t
3、he necessaryprovisions of a contract. Users are responsible for its correctapplication. The British Standards Institution 2016.Published by BSI Standards Limited 2016ISBN 978 0 580 84699 1ICS 77.100Compliance with a British Standard cannot confer immunity fromlegal obligations.This British Standard
4、was published under the authority of theStandards Policy and Strategy Committee on 31 July 2016.Amendments/corrigenda issued since publicationDate T e x t a f f e c t e dEUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN ISO 8049 June 2016 ICS 77.100 Supersedes EN 28049:1992English Version Ferroni
5、ckel shot - Sampling for analysis (ISO 8049:2016)Ferro-nickel en grenailles - chantillonnage pour analyse (ISO 8049:2016) Ferronickelschrot - Probenahme fr Analyse (ISO 8049:2016) This European Standard was approved by CEN on 26 May 2016. CEN members are bound to comply with the CEN/CENELEC Internal
6、 Regulations which stipulate the conditions for giving this European Standard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such national standards may be obtained on application to the CEN-CENELEC Management Centre or to any CEN
7、 member. This European Standard exists in three official versions (English, French, German). A version in any other language made by translation under the responsibility of a CEN member into its own language and notified to the CEN-CENELEC Management Centre has the same status as the official versio
8、ns. CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Po
9、land, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG CEN-CENELEC Management Centre: Avenue Marnix 17, B-1000 Brussels 2016 CEN All rights of exploitatio
10、n in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN ISO 8049:2016 EBS EN ISO 8049:2016EN ISO 8049:2016 (E) 3 European foreword This document (EN ISO 8049:2016) has been prepared by Technical Committee ISO/TC 155 “Nickel and nickel alloys“. This European Standard s
11、hall be given the status of a national standard, either by publication of an identical text or by endorsement, at the latest by December 2016, and conflicting national standards shall be withdrawn at the latest by December 2016. Attention is drawn to the possibility that some of the elements of this
12、 document may be the subject of patent rights. CEN and/or CENELEC shall not be held responsible for identifying any or all such patent rights. This document supersedes EN 28049:1992. According to the CEN-CENELEC Internal Regulations, the national standards organizations of the following countries ar
13、e bound to implement this European Standard: Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Po
14、rtugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom. Endorsement notice The text of ISO 8049:2016 has been approved by CEN as EN ISO 8049:2016 without any modification. BS EN ISO 8049:2016ISO 8049:2016(E)Foreword iv1 Scope . 12 Normative references 13 Form
15、and packaging of product 14 Principle 15 Taking of the primary sample and then of the intermediate sample 25.1 Blended lots . 25.1.1 Bulk sampling in the case of a suitable system for taking the primary sample 25.1.2 Sampling of bulk material when no adequate primary sampling system is available . 3
16、5.1.3 Sampling of a drum-packed lot . 35.1.4 Sampling of a container-packed lot . 35.2 Particular case of a lot made up of one single heat 56 Treatment of the intermediate sample and taking of the secondary sample . 56.1 General . 56.2 Blended lot 56.3 Lot made up of a single heat 57 Remelting of th
17、e secondary sample . 58 Use of small ingots (secondary increments) . 6Annex A (informative) Justification of the number of primary and secondary increments . 8Annex B (informative) Methods for taking a sample of size N in a supply of M items 17Annex C (informative) Technical conditions for drilling
18、and milling 21Bibliography .29 ISO 2016 All rights reserved iiiContents PageBS EN ISO 8049:2016ISO 8049:2016(E)ForewordISO (the International Organization for Standardization) is a worldwide federation of national standards bodies (ISO member bodies). The work of preparing International Standards is
19、 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 liaison with ISO, also take part
20、 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/IEC Directives, Part 1. In particula
21、r 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 elements of this
22、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 received (see www.is
23、o.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 adherence to the W
24、TO principles in the Technical Barriers to Trade (TBT) see the following URL: Foreword - Supplementary informationThe committee responsible for this document is ISO/TC 155, Nickel and nickel alloys.This second edition cancels and replaces the first edition (ISO 8049:1988). The following change has b
25、een made: 5.1.4 has been added.iv ISO 2016 All rights reservedBS EN ISO 8049:2016INTERNATIONAL STANDARD ISO 8049:2016(E)Ferronickel shot Sampling for analysis1 ScopeThis International Standard defines a method of sampling for analysis of ferronickel lots in the form of shot as specified in ISO 6501
26、in those cases where lots are constituted either heat by heat or by taking from blended stock.The purpose is to determine the contents of the various elements either from slugs by physical analysis methods (such as X-ray fluorescence or emission spectral analysis), or from chips by dry methods (carb
27、on, sulfur) or chemical analysis (other elements).2 Normative referencesThe following 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 editio
28、n of the referenced document (including any amendments) applies.ISO 513:2012, Classification and application of hard cutting materials for metal removal with defined cutting edges Designation of the main groups and groups of application3 Form and packaging of productGrain size: between 3 mm and 50 m
29、m.Lot tonnage: equal to or greater than 5 t.In the case of lots taken from blended stock, the nickel content range k to (k + n) % of the blended heats shall be chosen as follows: 15 k 59; 1 n 5; 16 k + n 60.NOTE The case of non-blended lots (case n 1) is not dealt with in this International Standard
30、.The ferronickel shot is generally delivered in bulk form in units which may be trucks, containers, or railroad cars, of which the contained masses normally range from 5 t to 30 t, although in the case of railroad cars, loads may have masses up to 60 t.This type of ferronickel can also be delivered
31、drum-packed (the contained mass of which may be 250 kg).4 PrincipleIn a single heat, intergrain homogeneity is practically ensured. It is therefore very easy to obtain a representative “primary sample” from a small number of “primary increments”.In the case of a blended lot composed of several heats
32、, a greater number of primary increments, NP, should be taken, but the whole still constitutes the primary sample. ISO 2016 All rights reserved 1BS EN ISO 8049:2016ISO 8049:2016(E)After blending and mass division of the primary sample, an “intermediate sample” is obtained having a reasonable mass fo
33、r laboratory treatment. The treatment of the intermediate sample gives a “secondary sample”, which may be divided in Ns“secondary increments” not exceeding a mass of 1 kg individually.Each secondary increment is then remelted under appropriate conditions so that no variation in composition can be ob
34、served and that Nshomogeneous small ingots be obtained (within-small-ingot homogeneity).NOTE It is generally accepted that 1 kg is the maximum mass which can be accommodated in a laboratory furnace for re-casting under the required conditions. According to the grain size distribution of shot, it is
35、often necessary for the secondary sample to exceed 1 kg in order to be representative. Hence, the necessity of melting several small ingots. See the statistical justification in Annex A.The small ingots are then either used for physico-chemical analysis or machined into chips for chemical analysis.
36、(This procedure is summed up in Figure A.1.)5 Taking of the primary sample and then of the intermediate sample5.1 Blended lots5.1.1 Bulk sampling in the case of a suitable system for taking the primary sampleThis can be performed, for example, by emptying the shot into a bin with reclaim by belt con
37、veyor. From the conveyor discharge, two possibilities are as follows: to have a true sampling system respecting the rules of the art for sampling of particulate material (such as a cross stream sampler); to take increments at regularly spaced intervals, using a power shovel with a dipper interceptin
38、g the shot stream in a representative manner.The mass of each primary increment shall be, in this case, not less than 20 kg, and is generally between 20 kg and 50 kg.The number of primary increments, Np, to be selected is shown in Table 1.Table 1 Minimum number of primary increments to be selectedSa
39、mple TonnageRange of nickel contents, nn 1 1 n 2 2 n 3 3 n 4 4 n 5Numbers of primary incrementsNp5 to 5050 to 200200 to 500500 to 2 50057101510121520151720252022253030354045Number of secondary incrementsNsa1 2 3 4 5aThis indicates the number of small ingots to be remelted in the hypothesis of 1 kg p
40、er small ingot. (If the maximum mass which can be remelted is 1lx kg, the number of small ingots to be remelted is x Ns.)The primary sample shall then be mass-divided into smaller units, in order to obtain an intermediate sample having a mass which can reasonably be sent to the laboratory for furthe
41、r preparation, 20 kg to 50 kg, say.This can be accomplished with automatic mass dividers (such as rotary dividers) of suitable size with respect to the particle size of the product being handled.2 ISO 2016 All rights reservedBS EN ISO 8049:2016ISO 8049:2016(E)Failing such equipment, the division can
42、 be made by alternate shovelling from the primary sample stockpile. As a precaution against material spill during shovelling, it is recommended that a scoop or coal-miners-type shovel be used.For example, every fifth shovelful or less would be taken and this division would be repeated a sufficient n
43、umber of times to obtain the desired sample mass of 20 kg to 50 kg.5.1.2 Sampling of bulk material when no adequate primary sampling system is availableIn this case, hand sampling shall be performed by alternate shovelling on each unit to be checked (truck, railroad car, container, etc.). The number
44、 of units to be checked is the number Npin Table 1 or the total number of units if it is less than Np. For this purpose, the rules for random sampling given in Annex B may be applied.EXAMPLE When unloading a 20 t truck on to the ground, sampling could proceed as follows: shovel the 20 t, setting asi
45、de every fifth shovelful; from the 4 t obtained, set aside every fifth shovelful; from the 800 kg obtained, set aside every fifth shovelful; from the 160 kg obtained, set aside every fifth shovelful; send the 32 kg obtained to the laboratory.In this example, an intermediate sample is obtained for th
46、e checked unit.If more than one unit is checked in the same lot, intermediate samples in each unit can be blended and mass division carried out again until an intermediate sample representative of the lot is obtained. In this case, the intermediate sample mass can be reduced to 10 kg to 20 kg.5.1.3
47、Sampling of a drum-packed lotThe number of drums from which increments should be taken is the number Npin Table 1 or the total number of drums if this is less than Np.NOTE In general, drum-packaging is used for low-tonnage lots. The first line of the table is therefore applicable in most cases.A min
48、imum of 1 kg of shot or more, if required, per selected drum is taken to obtain a mass in excess of 20 kg, generally between 20 kg and 50 kg.If the contents of each drum are assumed to be homogeneous, the sample may be taken from the top of the drum. If not, the drums shall be emptied and the sample
49、 taken by alternate shovelling.5.1.4 Sampling of a container-packed lot5.1.4.1 PrincipleThis sampling method is applicable only for the determination of the nickel content (Ni).The aim of this proposal is to simplify the sampling mode of a ferronickel delivery at customer site. Indeed generally, the end user does not have the appropriate means to proceed rigorously with this standard to sample the product, and when the end user gets the analytical results on the delivery, the lot is already partially or totally cons
