HazWasteOnline Certification
Training Courses

As part of the certification process, we provide a two day hazardous waste classification course that shows the classifier how to effectively use HazWasteOnlineTM to assess both simple and more difficult wastes streams including contaminated soils, sludges, filter cakes and trommel fines.  The course covers the fundamentals and then moves on to more advanced waste classification techniques and challenges, including understanding laboratory data and classification reports created by others.

For practising classifiers, certification has to be renewed every 3 years.

Day 1 Hazardous Waste Classification

Day 1 explains which wastes are classified as hazardous, provides up-to-date advice on how to comply with the regulations and features practical exercises which use HazWasteOnline™ to assess and record hazardous waste classifications.
It also highlights the current differences between the WM3 and EU technical guidance and the new challenges following BREXIT, in particular the for wastes leaving or entering Northern Ireland.

  • Background and Legislation Is it waste? Why does it need classifying? Relevant legislation and timeline. Available Guidance, Flowchart of assessment procedure.
  • Classification Part 1 Is it a Directive Waste? Are there special provisions? Introduction to the EWC.
  • Workshop 1: Classifying waste using the EWC about 10 examples, some easy, some not so straightforward.
  • Classification Part 2 Is the composition of waste known or can it be determined? Safety Data Sheets and CAS registry numbers. Discussion of conversion from anions/cations to compounds and the use of moisture content. Does the waste contain dangerous substances. Hazard Statement codes and the outgoing Risk Phrases, Annex VI and other sources of information.
  • Classification Part 3 Does the waste possess any of the Hazardous Properties ? Comparison against thresholds. Additive & Absolute. Examples.
  • Workshop 2: Determination of Hazardous Properties Examples done by hand, calculator and/or Excel.
  • Introduction to HazWasteOnline™ Now we’ve done it the hard way by hand, we’ll appreciate a tool that will do it for us.
  • Workshop 3: Using HazWasteOnline™ A couple of straightforward examples – which do include ecotoxicity.
  • Wastes Containing Oils Current guidance, difficulties and potential solutions; types of oil.
  • Assessment of Ecotoxicity A more complex subject.
  • It’s Hazardous – What now ? Options to re-run HazWasteOnline™, further investigation, re-use of materials.
  • Workshop 4: Using HazWasteOnline™ – part 2 More complex examples including oils, ecotoxicity; creating new waste stream templates, cut-n-paste from laboratory spreadsheets and analysing multiples samples.
  • Smart Sampling The implications of the way we sample and the way we get concentrations to put into the assessment.
  • Waste Classification and the Waste Acceptance Criteria (WAC) Why they aren’t the same.
  • Workshop 5: Using HazWasteOnline™ – part 3 Communicating classifications with other parties using the Package Viewer
  • What’s in the pipeline? New guidance WM3 including hazard statement codes, classes and categories and the new requirement to also assess wastes for POPs (Persistent Organic Pollutants).

Day 2 Advanced Waste Classification

Day 2 digs deeper in to the substances in hazardous wastes. Some of the key questions this day covers includes:

  • which metal compound is worst case?
  • which is more reasonable for my waste stream?
  • What type of TPH/unknown oil do I have?
  • Where can I research missing hazard statement codes?
  • Under what scenarios can I ignore a hazard property?

The course includes practical exercises which use internet based databases, Excel, Google and HazWasteOnline™.

  • General background: Atoms, Periodic Table, cations, molecular weight, oxidation states, bonds, anhydrous/hydrates;
  • Better understanding lab test suites (e.g. free/complex/total cyanide);
  • Choosing compounds (what to look for/why rule some out etc.);
  • Choosing metal species – expanding on above to looking at properties e.g. solubility;
  • Get more out of the SI / lab data (e.g. chromium III and VI);
  • Composition stoichiometry (or do the cations/anions add up?..);
  • Oils, PAHs & the science behind the analysis (chromatograms);
  • Researching & adding new substances that are not in or are incomplete entries in the CLP;
  • The utilisation of data sources, including the C&L Inventory database and the IARC Monographs;
  • Hazard Statement codes, categories and classes and the conversion of Hazard Statement codes from risk phrases,
  • Other analysis options? XRD/XRF;
  • Moisture content – wet and dry weight moisture content, dry solids;
  • Soil chemistry, pH, acid alkali reserve, testing;
  • Asbestos, liquid units;
  • Getting the maximum out of HazWasteOnline™.

The above are supported by a number of workshops centred around composition stoichiometry, researching hazard statement codes for incomplete or missing compounds and choosing suitable metal species for a given waste stream based on properties and understanding of the potential uses of that compound.

Refresher Course

This course is for classifiers who have completed the two day Waste Classification certification course more than 3 years ago and need to keep their certification up to date.

  • Brief overview of legislative changes and new guidance (e.g. packaging, soil sampling) introduced over the previous three years
  • Review of the results of the on-line assessment, examples of common mistakes
  • Mini workshops where we look at real examples of data from a number of different waste streams
  • Review of new functionality added to HazWasteOnline such as processing WAC data, PAH double ratio plots, averaging replicate sample data
  • Workshop – multi-part exercise where delegates are given the details of a waste stream and have to work out whether it’s hazardous or not – includes desktop study, selection of EWC code, defining test suite, assessing sampling, import and processing replicate lab data using the .hwol file, identification of metal species, identifying the types of the hydrocarbons, data processing

Next Courses

With the current COVID-19 pandemic, we have moved all our courses to an on-line format using a combination of Zoom, Moodle (educational software) and HazWasteOnline.

Waste Classification Courses

  • 4th – 5th Aug 2021Zoom Meeting, UK/Ireland

Refresher Courses

  • 3rd Aug 2021Zoom Meeting, UK/Ireland


  • Two day course (Day 1 + Day 2) £756 + VAT
  • Refresher course £420 + VAT

Terms & Conditions

  1. Day 1 has to have been completed before Day 2 can be booked – the exception is when both Day are booked together.
  2. Places on the course are secured by electronic payment, cheque made payable to One Touch Data Ltd, or by purchase order. 
    If by purchase order we will send an invoice, payments must be received before the course commences. In order to ensure that each delegate gains maximum benefit from the course, space is strictly limited and will be allocated on a first come first served basis.
  3. Once invoiced, no refunds will be given although substitute delegates are welcome. All cancellations must be received in writing.
  4. One Touch Data Ltd reserves the right to alter each course, and to cancel courses in the event of insufficient bookings. In the latter case, all delegates will be advised immediately and fees refunded in full.