EN 1981-2003 pdf download.Copper and copper alloys-Master alloys.
4.1.2 Symbol
The matenal symbol designation Is based on the desgnation system given m ISO 1190-1.
NOTE Although mateulal symbol designations used Wi this standard mç be the san, as those Wi other standards using
the designation system given Wi ISO 1190-1. the detaled composition reqi.sremenhs are not necessar*y the sane,
4.1.3 Number
The material number designation s in accordance with the system given m EN 1412.
4.2 Product
The product designation provides a standardised pattern of designation from which a rapid and unequivocal descrtion of a product Is conveyed In communication. It provides mutual comprehension at the international level w’tti regard to products which meet the requirements of the relevant European Standard
The product designation is no substitute for the fuN content of the standard The product designation for products to the standard shall consist of:
— denomination (Copper master alloy):
— number of this European Standard (EN 1981):
material designation, either symbol, or number (see Table 1):
— material form (the blowing designations shall be used as appropriate ING for ingots. NOB for notched bars. NOS for notched slabs, GRN for granules and BPS for broken pieces) (see 6.2).
The derivation of a product designation Is shown in the following example
EXAMPLE Copper master alloy conforming to this standard. m matinal designated either CuPI5(B) or C18E. in the fom ci granules, shall be designated as blows
5 Ordering information
In order to faciktate the enquiry. order and confirmation of order procedures between the purchaser and the supplier, the purchaser shall stale on his enquiry and order the following information:
a) quantity of product required (mass);
b) denominaflon (Copper master aoy);
C) number of this European Standard (EN 1981);
d) material designation (see Table 1);
e) material form (see 6.2).
NOTE It Is recommended that the product desnation, as described Wi 4.2,.s ed for items b) So I).
In addition, the purchaser shall also state on the enquiry and order any of the following, d required:
t) whether a declaration of conformity is required (see 9.1);
g) whether wi erispection document Is required, and if so, which te (see 9.2);
h) whether casts in a consignment shail be kept separate (see 10).
EXAMPLE Ordermg detas for 500 kg of copper master alloy corWoniwig to EN 1981 15% phosphorus designated either CuP 15(8) or CM2I8E, Wi grwuSar form. wilti dedaration of conlotnilty:
6 Requirements
6.1 Composition
The composihon shail contorm to mu requiremenis TCX inc aporopiate maieriaj given in i aoe 1.
6.2 Product form
The master aloy shall be in one of the following forms, as recjested by the purchaser Lsee 5 e)J:
— ingot;
notched bar; notched slab (wattle plate):
granules: or broken pieces
The design of the ingot, notched bar, or notched slab shaU be at the discretion of the supplIer, unless a specific design Is requested by the purchaser.
6.3 PhysIcal condition
The products shall be supplied tree from dirt or dross and shall contain no extraneous material detnmental to their metallurgical quality,
Broken pieces shall be reasonably free from line metallic particles
When required (e.g.. d necessary in accordance with specified procedures of a supp’er’s quality system. or when the purchaser requests Inspection documents with test results. or for use in cases of dispute), an inspection lot shall be sampled In accordance with 7.2 or 7.3.
7.2 Cast analysis
For routine control purposes a sample representative of each cast shall be taken from the furnace, or crucible. dunng the process of casting. and poured into a clean permanent mould of dimensions appropriate to the chosen method of analysis.
7.3 Cases of dispute
In cases of dispute concernang the composition of a master alloy in a consignment, the method ci sampng shall be
agreed between the disputing parties.
8 Methods of analysis
8.1 Routine cast analysis
The routine rnetrioos of analysis cameo out on me sampie ootaineo in accoroance rn f.. TO verity conTormily OT
the cast of master alloy to this standard. shall be at the discretion of the supplier.
8.2 DetermInation of chromium(lll)-oxide in alloy CuCrlO (CM2O2E)
For alloy CuCrlO (CM2O2E), the method recommended for the determination of CrO, as given in annex A.
NOTE A qUalitative assessment can be made by ezarn.nen a pokshed mcrosction. undet polanz.d hght. at x 250 nagnhcabon
8.3 Cases of dispute
In cases of dispute concerning the results of analysis of a master alloy. the procedure shall be agreed between the disputing parties.
8.4 Rounding of results
For the purpose of determining conformity to the compositional bmits specified in this standard. the result obtained from analysis shaH be rounded In accordance 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 bmitm Table 1.EN 1981-2003 pdf download.