SIST EN 13920-3:2004

SIST EN 13920-3:2004 is the Slovenian national standard adopted from EN 13920-3:2003. It specifies the characteristics, chemical composition and metal yield for new and old scrap recovered from wire or cable made of unalloyed aluminium with at least 99.5 % aluminium, or from defined aluminium alloys. In practice, it is used by suppliers, recyclers and buyers to describe a lot, check its condition and decide whether the scrap can be accepted for recycling.

What does SIST EN 13920-3:2004 specify?

SIST EN 13920-3:2004 covers wire and cable scrap from aluminium and aluminium alloys. It applies to both new scrap from cable and wire manufacturing and old scrap from used aluminium cables, such as material recovered when electrical lines are dismantled.

The document is organized into six clauses:

• Scope
• Normative references
• Terms and definitions
• Ordering information
• Requirements
• Classification procedure, treatment of non-conformities and arbitration

The standard builds on EN 13920-1 for general requirements, sampling and tests. That matters because the technical acceptance of a lot is not based only on appearance, but also on defined test and classification steps.

What are the key requirements of SIST EN 13920-3:2004?

SIST EN 13920-3:2004 requires that wire and cable scrap meet the general requirements of EN 13920-1 as well as the special conditions in Clause 5. If the material deviates from those conditions, the supplier must tell the purchaser before shipment and obtain agreement. In practice, this means scrap cannot simply be sent as a standard lot if its condition is unusual.

Ordering information

Clause 4 says the order shall identify the standard, the scrap category, whether the material is unalloyed aluminium or a defined aluminium alloy, the gross mass of the consignment and the delivery period. It also calls for any characteristics that differ from the stated requirements, such as wire diameter or foreign material. This helps both sides agree what will be delivered and what will be inspected.

Physical condition of the scrap

Clause 5.2 requires individual wire to have a minimum diameter of 0.8 mm. The scrap must be free from attachment devices, steel core wires, spools, bundling material, other line components, coatings, burned wire, oil, grease, dust, plastics and other foreign matter. Where not otherwise agreed, the scrap should also be volume-reduced, for example by baling, coiling, chopping or knife shredding. In practice, this is the sorting and cleaning step that makes the scrap suitable for remelting.

Chemical composition

Clause 5.3 requires the composition after melting to match Table 1, Table 2 or the composition of alloys specified in EN 1715-1, with the chemical analysis determined according to EN 13920-1. Table 1 applies to wire and cable scrap of unalloyed aluminium, and Table 2 applies to wire and cable scrap of aluminium alloys of the 6xxx series. This means the recycler or laboratory must confirm the alloy family by analysis after melting, not only by visual sorting.

Metal yield

Clause 5.4 sets a metal yield requirement of at least 95 %, determined according to EN 13920-1. This is important for processors because it links the accepted scrap to the amount of usable metal that can be recovered from it.

Classification and disputes

Clause 6 sends classification, sampling, testing, non-conformities and arbitration back to EN 13920-1 as appropriate. That gives the parties a common method when a lot must be checked, rejected or disputed.

What terms does SIST EN 13920-3:2004 define?

SIST EN 13920-3:2004 uses terms from prEN 12258-3:2000 and EN 13920-1. The most important ones in practice are:

• Wire and cable scrap - aluminium scrap recovered from wire or cable.
• New scrap - scrap from manufacturing of cables and wires.
• Old scrap - used aluminium cable recovered from dismantled electrical lines.
• Unalloyed aluminium - aluminium scrap with a chemical composition of at least 99.5 % aluminium.
• Defined aluminium alloy - scrap from a known aluminium alloy composition.
• Metal yield - the recovered metal amount used to judge how much usable aluminium the scrap provides.
• Consignment - the delivered lot identified in the ordering information.

Who uses SIST EN 13920-3:2004?

SIST EN 13920-3:2004 is used by aluminium scrap suppliers, cable dismantlers, scrap processors, recyclers, smelters, purchasers and quality managers. It helps them write purchase specifications, classify incoming material, sample and test lots, and resolve acceptance questions when the scrap contains mixed materials or other deviations.

What changed in SIST EN 13920-3:2004 from the previous edition?

SIST EN 13920-3:2004 corresponds to EN 13920-3:2003.

Which standards are used with SIST EN 13920-3:2004?

SIST EN 13920-3:2004 refers to these standards:

• EN 13920-1:2003 - provides the general requirements, sampling and tests, and the procedure for non-conformities and arbitration.
• EN 1715-1 - provides the general requirements and technical conditions for inspection and delivery for drawing stock, used here as the reference for defined alloy composition.
• prEN 12258-3:2000 - provides the terms and definitions for scrap used in this part.

What does the SIST EN 13920-3:2004 document contain?

SIST EN 13920-3:2004 contains two chemical composition tables: one for unalloyed aluminium wire and cable scrap and one for 6xxx series aluminium alloy scrap. It also includes the ordering-information checklist, the physical cleanliness and size requirements, the metal yield criterion and the procedure clause for classification and disputes. For a buyer or recycler, the practical content is the set of conditions used to describe the lot, check its quality and confirm whether it meets the standard before processing.