SIST EN ISO 11125-1:2018 PDF

Overview

EN ISO 11125-1:2018 specifies a standardized method for sampling metallic blast‑cleaning abrasives from consignments and for subdividing those samples into quantities suitable for laboratory testing. It is Part 1 of the ISO 11125 series (Test methods for metallic blast‑cleaning abrasives) and is intended to ensure representative, repeatable sampling for quality control and conformity assessment in surface preparation and coating processes.

Key topics and requirements

• Scope: Sampling from consignments and preparation of a test sample for the other ISO 11125 test methods.
• Representative sampling rules: Number of sample units to be taken depends on consignment mass (examples from Table 1):
  • 1 t → sample 1 unit
  • 2–5 t → sample 2 units
  • 6–10 t → sample 3 units
  • 11–25 t → sample 5 units

  • 25 t → 5 units per 25 t

• Sampling procedures
  • Palletized bags/boxes: take a single ~500 g sample from one bag/box on each pallet.
  • Drums, bulk sacks: take three single samples from different areas using a sample thief, mix to form a mixed sample.
• Apparatus specified
  • Sample thief: seamless steel tube (~25 mm internal diameter, ~800 mm length) with holes along its length (holes ≈ 3× largest particle; ~10 mm typical).
  • Sample divider / riffler: for mechanical subdivision and reduction of mixed samples.
• Sample reduction and test sample
  • Reduce mixed samples mechanically until a test sample of ~500 g is obtained - sufficient for tests in ISO 11125‑2 to ISO 11125‑7.
  • Store in sealed container; remix before taking test portions; do not remix used portions back into the remaining sample.
• Identification and traceability
  • Test samples must be clearly labelled with product identification (per ISO 11124), consignment details, and traceability references.

Applications and users

This standard is essential for:

• Abrasive manufacturers and suppliers - to demonstrate product conformity and enable consistent QC.
• Coating contractors and industrial surface‑preparation teams - for acceptance checks of blasting media.
• Independent testing laboratories and inspection bodies - to obtain representative samples prior to performing ISO 11125 test methods.
• Procurement and quality managers - to set contractual sampling and testing requirements.

Keywords: EN ISO 11125-1:2018, sampling, metallic blast-cleaning abrasives, surface preparation, sample thief, sample divider, test sample 500 g, ISO 11124.

Related standards

• ISO 11125 series (Parts 2–7) - test methods for metallic abrasives.
• ISO 11124 series - types of metallic abrasive and product requirements (see Annex A of EN ISO 11125‑1:2018 for a list of parts).