SIST EN 13263-2:2005/kprA1:2008

Overview

EN 13263-2:2005/prA1 is a CEN draft amendment to EN 13263-2:2005 - Silica fume for concrete: Part 2: Conformity evaluation. Prepared by CEN/TC 104, this amendment (prA1, 2008) corrects an editorial mistake in the original standard and updates several normative references and definitions without changing the standard’s remaining technical content. The document supports conformity evaluation and quality control practices for silica fume used as a concrete additive.

Key topics and requirements

• Scope: Conformity evaluation of silica fume intended for use in concrete (Part 2 of EN 13263 series).
• Corrections and updates in prA1:
  • Deletion of a provision mistakenly included in clause 4.2.2.2 (the second paragraph beginning with “To ensure that ...”).
  • Update of normative references (replacement of EN 196-7:1989 with EN 196-7:2007).
  • Revision of clause 3.28 to a clarified definition: “sample taken within a short period of time and at a fixed point from within a larger quantity, relating to the intended tests. It can be obtained by combining one or more immediately consecutive increments [EN 196-7:2007].”
  • Bibliography updates to include: EN 45020:2006, EN ISO 9000:2005, and ISO 3534-1:2006.
• Conformity evaluation themes: sampling and sample definition, test reproducibility, normative reference alignment, and document consistency with quality management vocabulary and statistical terminology.

Applications and users

Who benefits from and uses EN 13263-2:

• Silica fume manufacturers - to demonstrate product conformity and align factory QA/QC with European practice.
• Testing laboratories - to apply the correct sampling and conformity procedures referenced by the standard.
• Concrete producers and specifiers - to verify that supplied silica fume meets conformity requirements for performance and durability in concrete mixes.
• Procurement and regulatory bodies - to reference a harmonized approach for acceptance testing, compliance checks and contract specifications.
• Certification and conformity assessment organizations - to ensure sampling and evaluation methods comply with up-to-date normative references.

Related standards

• EN 13263-1 (silica fume product specifications) - for product requirements.
• EN 196-7:2007 - sampling of test portions for cement and related materials (now cited).
• EN ISO 9000:2005 and EN 45020:2006 - quality management and standardization vocabulary.
• ISO 3534-1:2006 - statistical vocabulary used in conformity assessment.

Keywords: silica fume for concrete, EN 13263-2, conformity evaluation, sampling, quality control, CEN amendment, EN 196-7:2007.