BS-EN-13920-1-2003.pdf

BRITISH STANDARD BS EN 13920-1:2003 Aluminium and aluminium alloys Scrap Part 1: General requirements, sampling and tests The European Standard EN 13920-1:2003 has the status of a British Standard ICS 13.030.50; 77.120.10 ? Licensed Copy: sheffieldun sheffieldun, na, Sun Oct 29 09:05:35 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS EN 13920-1:2003 This British Standard was published under the authority of the Standards Policy and Strategy Committee on 30 April 2003 © BSI 30 April 2003 ISBN 0 580 41759 X National foreword This British Standard is the official English language version of EN 13920-1:2003. The UK participation in its preparation was entrusted to Technical Committee NFE/35, Light metals and their alloys, which has the responsibility to: A list of organizations represented on this committee can be obtained on request to its secretary. Cross-references The British Standards which implement international or European publications referred to in this document may be found in the BSI Catalogue under the section entitled “International Standards Correspondence Index”, or by using the “Search” facility of the BSI Electronic Catalogue or of British Standards Online. This publication does not purport to include all the necessary provisions of a contract. Users are responsible for its correct application. Compliance with a British Standard does not of itself confer immunity from legal obligations. aid enquirers to understand the text; present to the responsible international/European committee any enquiries on the interpretation, or proposals for change, and keep the UK interests informed; monitor related international and European developments and promulgate them in the UK. Summary of pages This document comprises a front cover, an inside front cover, the EN title page, pages 2 to 9 and a back cover. The BSI copyright date displayed in this document indicates when the document was last issued. Amendments issued since publication Amd. No. DateComments Licensed Copy: sheffieldun sheffieldun, na, Sun Oct 29 09:05:35 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EUROPEAN STANDARD NORME EUROPÉENNE EUROPÄISCHE NORM EN 13920-1 April 2003 ICS 13.030.50; 77.120.10 English version Aluminium and aluminium alloys - Scrap - Part 1: General requirements, sampling and tests Aluminium et alliages d'aluminium - Scrap (matières premières pour recyclage) - Partie 1: Exigences générales, échantillonnage et essais Aluminium und Aluminiumlegierungen - Schrott - Teil 1: Allgemeine Anforderungen, Probenahme und Prüfungen This European Standard was approved by CEN on 28 February 2003. CEN members are bound to comply with the CEN/CENELEC Internal 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 Management Centre or to any CEN 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 Management Centre has the same status as the official versions. CEN members are the national standards bodies of Austria, Belgium, Czech Republic, Denmark, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Luxembourg, Malta, Netherlands, Norway, Portugal, Slovakia, Spain, Sweden, Switzerland and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMITÉ EUROPÉEN DE NORMALISATION EUROPÄISCHES KOMITEE FÜR NORMUNG Management Centre: rue de Stassart, 36 B-1050 Brussels © 2003 CENAll rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 13920-1:2003 E Licensed Copy: sheffieldun sheffieldun, na, Sun Oct 29 09:05:35 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EN 13920-1:2003 (E) 2 Contents page Foreword3 1Scope 4 2Normative references 4 3Terms and definitions4 4Ordering information.4 5General requirements5 5.1Hazardous contaminants5 5.2Condition of scrap .5 5.3Foreign materials.5 5.4Mass tolerances.5 6Sampling.5 6.1General5 6.2Sampling procedures for granulated aluminium scrap and turnings6 6.3Sampling procedures and sample preparation for skimmings.6 6.4Sampling of other scrap7 7Tests7 7.1Removal and determination of moisture/volatile substances.7 7.2Removal and determination of free iron8 7.3Determination of the metal yield and the chemical composition .8 8Classification procedure, treatment of non-conformities and arbitration.8 8.1Classification procedure.8 8.2Treatment of non-conformities.9 8.3Arbitration.9 Licensed Copy: sheffieldun sheffieldun, na, Sun Oct 29 09:05:35 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EN 13920-1:2003 (E) 3 Foreword This document (EN 13920-1:2003) has been prepared by Technical Committee CEN /TC 132, “Aluminium and aluminium alloys“, the secretariat of which is held by AFNOR. This European Standard shall be given the status of a national standard, either by publication of an identical text or by endorsement, at the latest by October 2003, and conflicting national standards shall be withdrawn at the latest by October 2003. Within its programme of work, Technical Committee CEN/TC 132 has entrusted CEN/TC132/WG 20 “Scrap“ to prepare the following Standard. EN 13920 comprises the following parts under the general title “Aluminium and aluminium alloys Scrap“: Part 1: General requirements, sampling and tests Part 2: Unalloyed aluminium scrap Part 3: Wire and cable scrap Part 4: Scrap consisting of one single wrought alloy Part 5: Scrap consisting of two or more wrought alloys of the same series Part 6: Scrap consisting of two or more wrought alloys Part 7: Scrap consisting of castings Part 8: Scrap consisting of non-ferrous materials from shredding processes destined to aluminium separation processes Part 9: Scrap from aluminium separation processes of non-ferrous shredded materials Part 10: Scrap consisting of used aluminium beverage cans Part 11: Scrap consisting of aluminium-copper radiators Part 12: Turnings consisting of one single alloy Part 13: Mixed turnings consisting of two or more alloys Part 14: Scrap from post-consumer aluminium packagings Part 15: Decoated aluminium scrap from post-consumer aluminium packagings Part 16: Scrap consisting of skimmings, drosses, spills and metallics According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Czech Republic, Denmark, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Luxembourg, Malta, Netherlands, Norway, Portugal, Slovakia, Spain, Sweden, Switzerland and the United Kingdom. Licensed Copy: sheffieldun sheffieldun, na, Sun Oct 29 09:05:35 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EN 13920-1:2003 (E) 4 1 Scope This European Standard specifies general requirements and guidelines for the delivery and classification of the different categories of aluminium scrap, including quality requirements, sampling and tests. NOTESpecial requirements and guidelines for each of the scrap categories are specified in EN 13920-2 to EN 13920-16. 2 Normative references This European Standard incorporates by dated or undated reference, provisions from other publications. These normative references are cited at the appropriate places in the text and the publications are listed hereafter. For dated references, subsequent amendments to or revisions of any of these publications apply to this European Standard only when incorporated in it by amendment or revision. For undated references the latest edition of the publication referred to applies (including amendments). prEN 12258-3:2000, Aluminium and aluminium alloys Terms and definitions Part 3 : Scrap. 3 Terms and definitions For the purposes of this European Standard, the terms and definitions given in prEN 12258-3:2000 and the following apply. 3.1 free from term used to indicate that the presence of foreign materials is negligible 4 Ordering information The ordering information shall define the scrap and should cover aspects such as the following, in order to achieve a transparent transaction: scrap category, with reference to the relevant part of this European Standard; condition of the scrap, e.g. moisture and contamination with other materials, size, physical characteristics of pieces or particles, whenever meaningful; gross mass and assumed percentages of foreign materials; NOTEOperators traditionally use the term weight instead of mass. condition in which the scrap shall be delivered (loose, baled etc.); the expected minimum metal (aluminium) yield; the required chemical composition, if not otherwise specified; any available certification and control documents; shipment documents required by law. The contract shall contain the definition of the beginning and end of the period during which the scrap shall be delivered. Deliveries outside this period shall not be admitted unless the purchaser insists on the delivery at the contractual conditions. Licensed Copy: sheffieldun sheffieldun, na, Sun Oct 29 09:05:35 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EN 13920-1:2003 (E) 5 5 General requirements 5.1 Hazardous contaminants The scrap shall not contain materials like asbestos, cadmium, mercury, lithium, selenium, PCBs (polychlorinated bisphenyls) or PCB impregnated materials, explosive or radioactive materials, medical and hospital disposal. If there is any evidence or suspicion that the scrap might contain any such hazardous contaminant, this shall be notified to the potential purchaser, whose agreement to receive the scrap shall be obtained before shipment. Closed hollow articles, if present, shall be perforated to avoid risks of explosion during processing and/or melting. NOTEOther restrictions relevant to specific scrap categories are specified in EN 13920-2 through EN 13920-16. 5.2 Condition of scrap If not otherwise agreed or specified in the relevant standard: the scrap shall be supplied as loose scrap; the dimensions of each piece shall not be larger than (600 × 600 × 400) mm. The mass of each piece shall not exceed 200 kg. 5.3 Foreign materials If not otherwise specified, the scrap shall be free from foreign material. 5.4 Mass tolerances The difference between the consigned quantity and the ordered quantity shall not exceed ± 5 % if the ordered quantity is lower than 30 and delivered in one single shipment. For larger quantities that require multiple shipments, the total delivered mass shall not differ from the ordered mass by more than 3 000 kg. For each shipment, the mass difference between the unloaded mass verified by the purchaser at the arrival of the delivery and the mass declared in the shipment documents shall not exceed 0,2 %. 6 Sampling 6.1 General The objective of a sampling procedure specified in 6.2, 6.3 and 6.4 is to collect from an inspection lot a representative sample on which it is possible to perform the following basic tests representative for the whole inspected mass: determination of the average chemical composition; determination of the percentage of each foreign material; determination of the metal yield. The definition of the inspection lot shall be left to the purchaser. For classification, sampling and test procedures different from and simpler than those specified in clauses 6 and 7 may be used. Nevertheless, upon special request of the supplier, e. g. in the case of non-conformities, sampling and tests shall be based on the procedures specified in clauses 6 and 7, as far as applicable, or on other procedures, if agreed upon between supplier and purchaser or proposed by a neutral professional sampler. Licensed Copy: sheffieldun sheffieldun, na, Sun Oct 29 09:05:35 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EN 13920-1:2003 (E) 6 6.2 Sampling procedures for granulated aluminium scrap and turnings 6.2.1This procedure applies to those materials that by nature are constituted by relatively small and loose particles allowing small quantities to be easily picked up (e. g. with a shovel) in different places of the consignment. 6.2.2During or immediately after the unloading of the material, after a visual inspection, collect a quantity of 1 % to 5 % of the inspection lot. 6.2.3Mix accurately the various portions taken from the inspection lot, spread the collected material in a form of a round flat disk and take as quickly as possible a sample from different parts of the disc for moisture determination as described in 7.1. Store this sample in a closed container in order to avoid any change of the moisture content before testing. The moisture test shall be carried out as soon as possible. 6.2.4Divide the remainder of the sample in quarts along two perpendicular diameters as indicated in Figure 1. 6.2.5Take two quarts opposite to each other and disregard the other two. Mix well the two quarts collected, in a disc form flattened and requartered. 6.2.6Repeat the procedure until a sample of between 2 kg and 5 kg is obtained for the determination of free iron and the metal yield as described in 7.2 and 7.3. Figure 1 Sampling procedure for granulated scrap and turnings 6.3 Sampling procedures and sample preparation for skimmings 6.3.1 General Usually, this scrap category does not allow the extraction of a small representative sample from the delivered lot. Therefore, one of the three alternative sampling procedures given in 6.3.2 to 6.3.4 shall be used: 6.3.2 Alternative procedure 1 Take a sample of about 500 kg from the inspection lot. This sample shall include as far as possible large blocks rich in metal, smaller brittle parts, spillings, dust etc. in the same proportions as present in the whole mass under inspection. After removal of pieces which are too large (blocks), grind the remaining amount of the sample. Treat it on a sieve to separate the metallics ( 0,84 mm) from the fines ( 50 mm 5050 Drosses/skimmings-see 6.3 All other scrap100100 a Including scrap as specified in EN 13920-8 and EN 13920-9. 7 Tests 7.1 Removal and determination of moisture/volatile substances If the scrap is wet, dry the sample taken as specified in 6.2, 6.3 and 6.4 and in a quantity as specified in Table 1 in an oven at approximately 105 °C for the determination of water. For materials containing oil or emulsion (e.g. turnings) set the drying temperature at about 360 °C. Calculate the quantity of moisture (inclusive of oil) present in the sample as the difference between the two masses, before and after the drying. If other volatile substances are present after moisture/oil determination, carefully heat the sample at higher temperatures until complete elimination of such substances is obtained avoid unnecessary heating