Overview
EN ISO 10545-1:2014 / ISO 10545-1:2014 defines the rules for batching, sampling, inspection and acceptance/rejection of ceramic tiles. Adopted by CEN as EN ISO 10545-1:2014, this Part 1 standard establishes sampling procedures and a practical basis for deciding whether an inspection lot of tiles meets the agreed product requirements.
Keywords: EN ISO 10545-1:2014, ISO 10545-1:2014, ceramic tiles sampling, tile inspection, acceptance criteria
Key topics
- Scope and terms - Defines order, consignment, inspection lot, sample, sample size and non‑conforming unit to ensure consistent use of terminology.
- Constitution of inspection lots - Rules for grouping tiles into homogeneous consignments or subconsignments; guidance on handling non‑homogeneous consignments.
- Sampling procedure - Random sampling at an agreed location; two separate samples are taken, each packed and sealed; sample sizes for each tile property are specified in Table 1 of the standard.
- Double sampling plan - A two-stage acceptance system: initial sample evaluation followed, when necessary, by a second sample; decision rules use acceptance (Ac) and rejection (Re) numbers.
- Inspection methods - Two principal evaluation approaches:
- By attributes (counting non‑conforming units against Ac/Re values)
- By average value (variables) (comparing sample mean(s) to specified limits)
- Reporting requirements - Acceptance report must reference ISO 10545-1 and include tile description, sampling procedure, inspection lot constitution and determination of acceptability for each tested characteristic.
Practical applications
EN ISO 10545-1 is used to implement reliable quality control and contractual acceptance procedures throughout the tile supply chain:
- Tile manufacturers - establish factory QA/QC routines and batch acceptance criteria.
- Independent testing laboratories - perform standardized sampling and reporting for compliance testing.
- Buyers / distributors / importers - verify consignments against contractual requirements and resolve disputes.
- Specifiers and contractors - adopt objective acceptance rules on construction projects to manage on‑site quality.
- Certification bodies and regulators - reference accepted sampling and acceptance protocols.
Related standards
Part 1 is the sampling and acceptance basis for the ISO 10545 series; complementary parts specify test methods for dimensions, water absorption, modulus of rupture, abrasion, frost resistance, chemical resistance and other properties (see ISO 10545 Parts 2–16).
Using EN ISO 10545-1:2014 ensures consistent, defensible acceptance decisions for ceramic tiles - reducing disputes, improving quality assurance, and aligning supply‑chain expectations.
