# ISO 11124 to 11127

Source: https://coatmentor.com/standards/iso-11124-11127/ · Updated 2026-10-14

Specifications and test methods for blast-cleaning abrasives.

**Publisher**: ISO

**Area**: Surface preparation and conditions

Four ISO series cover the abrasives used for blast cleaning:

- **ISO 11124:** requirements for metallic abrasives (steel shot and grit, chilled iron).
- **ISO 11125:** test methods for metallic abrasives.
- **ISO 11126:** requirements for non-metallic abrasives (slags, garnet, aluminium oxide and others).
- **ISO 11127:** test methods for non-metallic abrasives, including water-soluble contaminants and conductivity.

## Reading a designation

A metallic abrasive carries a code. "ISO 11124 M/LCS/S100" means metallic, low-carbon cast steel, shot, with a nominal size of 1.00 mm. HCS stands for high-carbon cast steel, CI for chilled iron, and G for grit in place of S for shot.

## Salts in the abrasive

An abrasive contaminated with salts puts them onto the steel it cleans, so abrasive checks belong in the inspection plan. ISO 11127-6 measures the soluble contaminants by conductivity: 100 g of abrasive in 100 mL of water, shaken, left for an hour and read at 20 °C. ISO 11126 sets 250 µS/cm by this method for new copper slag, coal slag and olivine.

The SSPC limit of 1,000 µS/cm uses a different method, ASTM D4940. The results of the two methods cannot be compared.

**9** practice items in the members area mention ISO 11124 to 11127 (CIP 1: 3 · CIP 2: 4 · FROSIO written: 2).

## Related

- **Concepts:** [Surface profile (anchor pattern)](https://coatmentor.com/learn/surface-profile/) · [Soluble salts and the Bresle test](https://coatmentor.com/learn/soluble-salts/)
- **Standards:** [SSPC-SP, NACE No. and WJ](https://coatmentor.com/standards/sspc-surface-preparation/) · [ISO 8503](https://coatmentor.com/standards/iso-8503/)

## About this page

This page describes the subject of ISO 11124 to 11127 in our own words; it does not reproduce the standard. For the full text, buy the current edition from ISO. Checked on 2026-10-14; errors go in the [corrections log](https://coatmentor.com/method/). CoatMentor is an independent study aid. It is not affiliated with ISO, AMPP, SSPC, NACE International, ASTM or FROSIO.