EN 14290-2004 en Zinc and zinc alloys - Secondary raw material《锌和锌合金 二次原料》.pdf

1、BRITISH STANDARD BS EN 14290:2004 Zinc and zinc alloys Secondary raw material The European Standard EN 14290:2004 has the status of a British Standard ICS 77.120.60 BS EN 14290:2004 This British Standard was published under the authority of the Standards Policy and Strategy Committee on 6 August 200

2、4 BSI 6 August 2004 ISBN 0 580 44202 0 National foreword This British Standard is the official English language version of EN 14290:2004. The UK participation in its preparation was entrusted to Technical Committee NFE/8, Zinc and zinc alloys, which has the responsibility to: A list of organizations

3、 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

4、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

5、confer immunity from legal obligations. aid enquirers to understand the text; present to the responsible 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

6、 the UK. Summary of pages This document comprises a front cover, an inside front cover, the EN title page, pages 2 to 16, an inside back cover and a back cover. The BSI copyright notice displayed in this document indicates when the document was last issued. Amendments issued since publication Amd. N

7、o. Date CommentsEUROPEANSTANDARD NORMEEUROPENNE EUROPISCHENORM EN14290 July2004 ICS77.120.60 Englishversion ZincandzincalloysSecondaryrawmaterial ZincetalliagesdezincMatirespremiressecondaires ZinkundZinklegierungenSekundrrohstoffe ThisEuropeanStandardwasapprovedbyCENon16January2004. CENmembersarebo

8、undtocomplywiththeCEN/CENELECInternalRegulationswhichstipulatetheconditionsforgivingthisEurope an Standardthestatusofanationalstandardwithoutanyalteration.Uptodatelistsandbibliographicalreferencesconcernings uchnational standardsmaybeobtainedonapplicationtotheCentralSecretariatortoanyCENmember. This

9、EuropeanStandardexistsinthreeofficialversions(English,French,German).Aversioninanyotherlanguagemadebytra nslation undertheresponsibilityofaCENmemberintoitsownlanguageandnotifiedtotheCentralSecretariathasthesamestatusast heofficial versions. CENmembersarethenationalstandardsbodiesofAustria,Belgium,Cy

10、prus,CzechRepublic,Denmark,Estonia,Finland,France, Germany,Greece,Hungary,Iceland,Ireland,Italy,Latvia,Lithuania,Luxembourg,Malta,Netherlands,Norway,Poland,Portugal, Slovakia, Slovenia,Spain,Sweden,SwitzerlandandUnitedKingdom. EUROPEANCOMMITTEEFORSTANDARDIZATION COMITEUROPENDENORMALISATION EUROPISCH

11、ESKOMITEEFRNORMUNG ManagementCentre:ruedeStassart,36B1050Brussels 2004CEN Allrightsofexploitationinanyformandbyanymeansreserved worldwideforCENnationalMembers. Ref.No.EN14290:2004:EEN 14290:2004 (E) 2 Contents page Foreword3 1 Scope 4 2 Normative references 4 3 Terms and definitions .4 4 Designation

12、 5 5 Ordering information.6 6 Requirements.6 6.1 Characteristics, condition, zinc content, moisture 6 6.2 Composition.6 6.3 Additional requirements .6 7 Inspection of incoming material.7 7.1 General7 7.2 Test procedures.9 7.3 Retests 9 7.4 Rounding of results.10 8 Packaging .10 Annex A (normative) M

13、etallic scrap.11 A.1 New zinc and zinc alloy scrap 11 A.1.1 New zinc scrap (Type S-ZnA.1.1) .11 A.1.2 New zinc alloy scrap (Type S-ZnA.1.2) 11 A.1.3 New coated zinc alloy scrap (Type S-ZnA.1.3) .11 A.1.4 New zinc alloy scrap with foreign substances (Type S-ZnA.1.4)12 A.1.5 Zinc blowings and zinc met

14、allizing scrap (Type S-ZnA.1.5) .12 A.2 Old zinc and zinc alloy scrap12 A.2.1 Old zinc scrap (Type S-ZnA.2.1).12 A.2.2 Old zinc alloy scrap without foreign materials (Type S-ZnA.2.2) .12 A.2.3 Old zinc alloy scrap with foreign materials (Type S-ZnA.2.3) .13 A.2.4 Crushed sorted zinc alloy scrap (Typ

15、e S-ZnA.2.4).13 Annex B (normative) Drosses and skimmings .14 B.1 Drosses.14 B.1.1 Top dross (Type S-ZnB.1.1) 14 B.1.2 Bottom dross (hardspelter, hardzinc) (Type S-ZnB.1.2)14 B.1.3 Zinc alloy dross (Type S-ZnB.1.3)14 B.2 Skimmings15 B.2.1 Zinc skimmings from galvanizing (Type S-ZnB.2.1) 15 B.2.2 Zin

16、c skimmings from other zinc processes (Type S-ZnB.2.2) 15 B.2.3 Zinc alloy skimmings (Type S-ZnB.2.3).15 Bibliography 16 EN 14290:2004 (E) 3 Foreword This document (EN 14290:2004) has been prepared by Technical Committee CEN/TC 209 “Zinc and alloys”, the secretariat of which is held by AFNOR. This E

17、uropean Standard shall be given the status of a national standard, either by publication of an identical text or by endorsement, at the latest by January 2005, and conflicting national standards shall be withdrawn at the latest by January 2005. According to the CEN/CENELEC Internal Regulations, the

18、national standards organizations of the following coun- tries are bound to implement this European Standard : Austria, Belgium, Cyprus, Czech Republic, Denmark, Esto- nia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, P

19、oland, Portugal, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom. EN 14290:2004 (E) 4 1 Scope This document specifies the requirements for the properties and condition of a specific range of tradeable secondary raw materials with a predominant zinc content. This document defines th

20、ese materials uniformly at the European level so that they can be traded within the economic cycle as raw materials with product character and their recycling is carried out specific to the material. 2 Normative references The following referenced document is indispensable for the application of thi

21、s document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. EN 12844, Zinc and zinc alloys Castings Specifications. 3 Terms and definitions For the purposes of this document, the following

22、 terms and definitions apply: 3.1 groups of secondary raw materials 3.1.1 metallic scrap 3.1.1.1 new zinc and zinc alloy scrap zinc and zinc alloy new or unused such as rejected parts, stampings and/or other by-products from processing 3.1.1.2 old zinc and zinc alloy scrap zinc and zinc alloy-based

23、used or end of life material with or without foreign attachments and/or foreign materials 3.1.2 Drosses and skimmings 3.1.2.1 drosses by-products from melting and/or galvanizing operations consisting of mainly metallic materials predominantly of zinc and iron 3.1.2.2 skimmings by-products from melti

24、ng and/or galvanizing operations consisting of a mixture of predominantly zinc and zinc ox- ide, untreated or treated 3.2 foreign materials material, other than as specified in this standard, whether metallic or non-metallic including free iron EN 14290:2004 (E) 5 3.3 coated, plated or enamelled mat

25、erial material with any kind of coating or plating, independent of the process of coating or plating, e.g. paint, varnish, print, plastics or metals (e.g. aluminium, chromium, nickel, tin) 3.4 free iron ferrous materials (e.g. steels) either magnetic or non-magnetic 3.5 moisture any liquid that adhe

26、res to the material (less than 0,2% for metallic material) when it reaches the point of delivery due to fabrication, usage or pick-up during storage 3.6 inspection lot consignment or a part thereof submitted for inspection by the purchaser 3.7 representative sample sample, fully representing the ran

27、ge of scrap in an inspection lot 3.8 zinc content total elemental zinc content, either in metallic or compound form 3.9 metal yield mass of gained metal after drying and melting with a temperature up to 500 C, using flux if necessary 3.10 unmeltables fraction of the consignment not molten at a tempe

28、rature up to 500 C 4 Designation The product designation provides a standardized pattern of designation from which a rapid and unequivocal description of a product is conveyed in communication. It provides mutual comprehension at the international level with regard to products which meet the require

29、ments of the relevant document. The product designation is no substitute for the full content of the standard. The product designation for products to this standard shall consist of: denomination (Secondary raw material); number of this document (EN 14290); material type (see annexes A and B). EN 14

30、290:2004 (E) 6 The derivation of a product designation is shown in the following example. EXAMPLE Secondary raw material conforming to this standard, material type S-ZnA.1.1, shall be designated as follows: Secondary raw material EN 14290 S-ZnA.1.1 Denomination Number of this document Material type

31、5 Ordering information In order to facilitate the enquiry, order and confirmation of order procedures between the purchaser and the supplier, the purchaser shall state on his enquiry and order the following information: a) quantity of material required (mass); b) denomination (Secondary raw material

32、); c) number of this document (EN 14290); d) material type (see annexes A and B). NOTE It is recommended that the product designation, as described in clause 4, is used for items b) to d). In addition, the purchaser shall also state on the enquiry and order any of the following, if required: e) form

33、 of packaging. EXAMPLE Ordering details for 20 t secondary raw material conforming to EN 14290, material type S-ZnA.1.1: 20 t Secondary raw material EN 14290 S-ZnA.1.1 6 Requirements 6.1 Characteristics, condition, zinc content, moisture The characteristics, condition, zinc content, moisture shall c

34、onform to the requirements for the appropriate material given in annexes A and B. 6.2 Composition The compositions given in annexes A and B refer to the analytical results obtained, using appropriate documents or other methods by agreement, from a representative sample taken from an inspection lot.

35、6.3 Additional requirements If not otherwise specified in annexes A and B, the following applies: The secondary raw material shall not contain: mica, asbestos, plastic, rubber, paper impregnated with oil, oil, grease; materials being recognized as substances that deplete the ozone layer of the earth

36、; explosive materials. No radioactively contaminated secondary raw material or radioactively contaminated substances adhering to the secondary raw material or mixed with the secondary raw material shall be accepted. EN 14290:2004 (E) 7 7 Inspection of incoming material 7.1 General The inspection sch

37、eme given in Figure 1 shall be applied. The test procedures shall be carried out on representative samples. For expression of results, the rounding rules given in 7.4 shall be used. In case of dispute with respect to sampling or testing methods or their results, arbitration shall be agreed between t

38、he purchaser and the supplier. EN 14290:2004 (E) 8 EN 14290:2004 (E) 9 7.2 Test procedures The test procedures given in Table 1 shall be used as appropriate. Table 1 Test procedures Characteristic Test procedure Moisture Estimation Weighing before and after removal of the moisture from a representat

39、ive sample Removal of the moisture shall be achieved by heating to a maximum temperature of 110 C until no more weight changes are detected. Free iron Estimation Presorting and weighing Other methods subject to agreement between the purchaser and the supplier. Composition Quantitative analysis metho

40、ds according to EN-standards or subject to agreement between the purchaser and the supplier. Size Measurement Zinc content Estimation Determination of the content of moisture and foreign substances in a representative sample using methods subject to agreement between the purchaser and the supplier.

41、Metal yield Estimation Determination of the content of moisture and free iron in a representative sample followed by remelting and weighing of the ingot. The remelting shall be performed in a furnace, with a temperature up to 500 C, using flux if necessary. Foreign materials Estimation Sorting and w

42、eighing Other methods subject to agreement between the purchaser and the supplier. 7.3 Retests If there is a failure of one, or more than one, of the tests in Table 1, two representative samples from the same inspection lot shall be permitted to be selected for retesting the failed characteristic(s)

43、 except in the case of determination of the amount of moisture. If the test samples from both representative samples pass the appropriate test procedure, then the inspection lot represented shall be deemed to conform to the particular characteristic of this standard. If a test sample fails a test pr

44、ocedure, the inspection lot represented shall be deemed not to conform to this standard. EN 14290:2004 (E) 10 7.4 Rounding of results For the purpose of determining conformity to the compositional limits specified in this standard, a value obtained from a test procedure shall be rounded in accordanc

45、e with the following procedure which is based upon the guidance given in annex B of ISO 31-0 : 1992. It shall be rounded in one step to the same number of figures used to express the specified limit in this standard. The following rules shall be used for rounding: a) if the figure immediately after

46、the last figure to be retained is less than 5, the last figure to be retained shall be kept unchanged; b) if the figure immediately after the last figure to be retained is equal to or greater than 5, the last figure to be retained shall be increased by one. 8 Packaging Any form of packaging shall be

47、 agreed between the purchaser and the supplier. EN 14290:2004 (E) 11 Annex A (normative) Metallic scrap A.1 New zinc and zinc alloy scrap A.1.1 New zinc scrap (Type S-ZnA.1.1) A.1.1.1 Characteristics Material consisting of any new zinc sheet or stampings. A.1.1.2 Condition The material shall not con

48、tain moisture, foreign materials and attachments. It shall not be corroded. A.1.1.3 Composition The zinc content of the material shall be min. 98 %. A.1.2 New zinc alloy scrap (Type S-ZnA.1.2) A.1.2.1 Characteristics Material consisting of new or unused uncoated zinc-based cast material, such as rejected parts, feeders, runners, sprues etc. A.1.2.2 Condition The material shall not contain moisture, foreign material and attachments. It shall be unpainted, unplated or uncoated, and not corroded. A.1.2.3 Composition The composition of the mat