Substance characterisation

Substance characterisation and identification is an important pre-requisite to most regulatory processes, including REACH and CLP, and allows a robust and fit-for-purpose hazard and risk assessment to be undertaken.

We can help you to confirm the chemical identity and composition of your substances, supported by clear analytical evidence, including:

  • reviewing and interpreting existing characterisation data;
  • designing an appropriate and cost-effective test strategy;
  • laboratory analysis to support the risk assessment of chemicals, including nanomaterials. 

Our range of specialist analytical services include:

  • Chemical analysis* of organics, inorganics and metals by GC-MS, HPLC, IC, ICP-AES, SEM/EDXS, FTIR, XRD;
  • Morphology and elemental sample analysis (SEM/EDXS);
  • Particle Size Distribution (PSD) by laser diffraction:
    • Dry powder (100 nm – 3500 µm) to ISO 13320:2009;
    • Wet dispersion (5 nm – 3500 µm) to ISO 13320:2009 and ISO 14487:2000;
  • Calculated Size Weighted Respirable Fraction (SWeRF) analysis, including crystalline silica specific SWeRF in mixtures for CLP;
  • Dustiness evaluation to EN 15051-2;
  • Dynamic light scatting (DLS) for particle size, zeta-potential and molecular weight analysis;
  • Elemental Carbon determination (NIOSH 5040) for carbon-based nanomaterials;
  • Moisture determination to EN 15051-1;
  • Bulk density determination to EN 15051-1;
  • Particle density by helium pycnometry;
  • Bio-durability assessment;
  • Other specialist characterisation (e.g. TEM, BET, XPS, SIMS, Raman);

* IOM is a UKAS accredited testing laboratory No 0374

We also undertake bespoke method development for providing characterisation data to support safety data sheets (SDSs), product validation, and regulatory compliance in the absence of established methods.

We're here to provide you with more information and answer any questions you may have. Contact us
  • IOMworld Posted: 3 days ago
    Safeguard your welders from the dangers of working with welding fumes. IOM offers a fast & reliable service to help… https://t.co/nFqA7jQNrA
  • IOMworld Posted: 5 days ago
    Is your hospital ventilation system fully functional and fit for purpose? IOM’s specialist team are experts in prov… https://t.co/H4gYZA4b47
  • IOMworld Posted: 10 days ago
    IOM is proud to be to contributing to the 28th EPICOH Conference on the 25th-28th of October. Leading on the IMPRES… https://t.co/He2EQ7fUPl
  • IOMworld Posted: 19 days ago
    IOM continues to share knowledge to protect staff. Richard Graveling has published a page on OSHwiki on prevention… https://t.co/NHZvwMhKfc
  • IOMworld Posted: 24 days ago
    Helping you to comply with the Vibration at Work Regulations. Our expert team can support you to create a safer wor… https://t.co/eEadIb0fWX
  • IOMworld Posted: 26 days ago
    Avoid unnecessary expense/delays when planning/altering your ventilation requirements. IOM’s expert team provides a… https://t.co/03bX5rJ2p7
  • IOMworld Posted: one month ago
    Dedicated to making the world a healthier place for us all, IOM has recently collaborated on a pan-European human b… https://t.co/hxVffmOEXA
  • IOMworld Posted: one month ago
    IOM is delighted to have collaborated in the latest #Cities4Children evidence to action brief entitled 'Urban Air P… https://t.co/YjgWDqFTv1
  • IOMworld Posted: one month ago
    Protect your workers hearing from excessive noise in the workplace. HSE states that 17,000 people in the UK suffer… https://t.co/xE1rkLrW45
  • IOMworld Posted: one month ago
    RT @lohmir: Millions of children suffer from #AirPollution in low and middle income countries. Read more about actions that could be taken…