1、3. $ EUROPEAN STANDARD -zm:sL EN 10177 m -=T:-lq -=o January 1989 -1 NORMEEUROPENNE EUROPAISCHE NORM Qfficial Photocopy mc 543.422:546.41:669.14 K, words : Iron and steel products, steels, chenical analysis, deternination of content, molecular absorption spectrophotometry, flame photometry Ennlish v
2、ersion Chemical analysis of ferrous materials Determination of calcium in steels Flame atomic absorption spectrometric method Analyse chimique des matriaux sidrurgiques - Dosage du calcium dans les aciers - Mthode par spectromtrie dabsorption Verfahren atomique.dans la flamme Chemische Analyse von E
3、isenwerkstoffen Bestimmung von Calcium in Stahl Flammenatomabsorptionsspektrometrisches This European Standard was accepted by CEN on 1989-01-15. CEN members are bound to comply with the requirements of the CENICENELEC Rules whichstipulate the conditions for giving this European Standard the status
4、of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such national stan- dards may be obtained on application to the CEN Central Secretariat or to any CEN member. This European Standard exists in the official versions (English, French, Ger- man).
5、A version in any other language made by translation under the responsi- bility of a CEN member into its own language and notified to CEN Central Sec- retariat has the same status as the official versions. CEN members are the national standards organizations of Austria, Belgium, Netherlands , Norway,
6、 Portugal, Spain, Sweden, Switzerland and United Kingdom. . Denmark, Finland, France Germany, Greece, Iceland, Ireland, Italy, Luxemburg, CEN European Coiiittee for Standardization Comit Europen de Norialisation Europisches Komitee fr Norprung Central Secretariat : Rue Brderode 2, B-1000 Brussels 10
7、177:1989 E Copyright reserved to all CEN members Ref.No. EN CEN 1989 - - CEN EN*LO*L77 89 W 340q589 OOOOLO 2 W A EN 10 177 ?age 2 Brief History This Zuroaean Standard takes over the content of EURGNORH 177-85 “Chezicai analysis of ferrous materials - Determination of calciu: XI steels - ?lane atomic
8、 absorgtion sgectrometric nethod“, arepared 5y ECZSSITC 20 “Yethods of chemical analysis“; the Secretariat of w3i:k 1s allocated to the Dansk Standardiseringsrad (DS). 1: has been subnitted to the CEN Formal Vote followiiic the decision of the Coordinating Commission (COCOR) of the European Committe
9、e for :ron and Steel Standardization on ?987-1:-24/25. It has been adopted and ratified by CEN BT on 1988-11-05. According to the Common CEN/CENELEC Rules, following countries are Sound to implement this European Standard : Austria, Belgium, Denmark, Finland, France, Germany, Greece, Icelane, Irelan
10、d, Italy, Luxemburg, Netherlands, Norway, Portugal, Sgain, Sweden, Switzerland and United Kingdom. Note in clauses 1 and 9 EURONORM shall read EUROPSAN STANDARD. f CEN EN*LO*l77 89 m 3404589 OOOO,91 m EN 10 177 Page 3 Chemical analysis of ferrous materials Determidon of calcium in steefs Flame atomi
11、c atworption specb-ornmic method I, SCOPE AND FIELD OF APPLICATION 2. REFERENCE 3. PRINCIPLE . 4. REAGENTS 5. APPARATUS 6. SAMPLING CONTENTS 7, PROCEDURE 7.1 Tat portion 7.2 Bimk tu 8 mkhm hollow cathode lamp; suppu of nitrow ox uid 30.0 ml Oc E.Lrium de- 7.3.3 Adjucrmcnt of uanic motp )the n to Wd
12、the cyea ofthe apartar from UV ruuicm by mema of tinted glus; (c) the need to keep the burner head cku of deposits, A badly dogged bumtr may CIUW 8 fluhback; (d) make am the liquid trap ia fikd with water. 7.4 EsMalunent oftbe cdrbntion Inph It tr neccsauy to draw up a new dibntion nph for each rait
13、t of (a) the method Of MdySt U (b) the results obuined, u weil u the fonn in which they ue exM: (f) the horuory and the date of uidysis. (c) any puticulu dcuils which may haw been aard du- the determination; ANNEX Pmision data Planned trids of this method were ca 10 detaminition, wen carried out by
14、a& analyst on each of 3 umpla. From the results obuined the 9536 (2s) confdence Umiu have ben cculated in accordance with IS0 3723, urd ue tabulated u follows: in eddition, the method wu &o tated by 13 I.borUofiu on bdenum ruinless ad, with dta vuyinl from O.1J96 to 0.0020%. and with 8 npeurbility o
15、f O.oOOl% within each laboratory. EURONORM CRM 252-1, 8 hilb chromium&kd-mdy- Repertability The differtnce ktwecn two dngk du found ai idmticd materid by one analyst using the urne rppuUirr within 8 short time interval will cxd the repeatability, r, not mm than once in 20 CM in the mal and com operation of the method. The Merencc betws#i two un& and indcpmdent results found by two oparton wotlrina in Mennt labartories on idcntiul test material will exoscd the wproducibility. R. on average not more than once in 20 cam in the normal an comct opauion of the method.
