Chemintro revision history

Revisions in Chemintro are prompted by migrating AICIS goalposts and requests from users. You are most welcome to contact us and ask for improvements or explanation of particular changes listed here.

Triple digit version numbers mean: (currently 1.2.4)

  • Major - significant change including infrastructure
  • Minor - new feature deployed
  • Patch - improvement or bugfix


2022-09-15 - Changed the "Salt and/or ester parent hazards" system to ensure users do not miss what is happening. See

2022-09-07 - Enhanced the Summary report to include source information upon which the categorisation is based. This gets updated for all introductions listed in open reports when they are saved. A closed report is one with the Submitted field set to 'Yes'. See

2022-08-11 - Enhanced the OECD tests with a clickable link to each test guideline and populated a new field Equivalent tests from the AICIS Guidelines taking Chemintro to revision 1.1. See

2022-08-01 - Chemintro now in production at version 1.0.0

2022-07-28 - Document management for AICIS assessments is now deployed. Essentially Chemintro creates a series of notes for all "Required" documentation for an assessment. As documentation is nailed, the note gets converted to a link and a user can see exactly what remains to be done while being also able to bring up the documentation on demand. One can choose to create separate series of notes for "If available" documentation. "Required" and "If available" vary depending on categorisation of the chemical. See

2022-07-07 - Assessment IUCLID6 checklists deployed. Depending on risk focus, AICIS either Requires particular evidence supporting claims or proving hazards do not exist OR wants to see them If available. Chemintro now constructs those two checklists automatically. See

2022-06-15 - Auto-delete irrelevant Useful links to AICIS checklists and record keeping obligations when user adjustments cause the categorisation to change. Similarly, irrelevant Notes are deleted - except if they have been edited, in which case the title gets "No longer relevant" appended.

2022-05-30 - Added 'Origin' and 'Info avaliability' mandatory fields to the home page initial chemical data entry screen. You do need to be logged in to see this but after first registering a new company you are indeed logged in with the Author role.

2022-05-30 - Delete invalid Useful links for checklist and record keeping obligations when the Category changes. Eg., because of product volume or chemical property changes. This will fail if a link Synopsis field has been edited. If so, you will need to delete invalid links yourself.

2022-04-19 - Add tilde '~' prefix to "~Product containing <chemical>" so it sinks alphabetically. Auto-remove ~ prefix if the product gains any volume. This affects the Products page and Product selection drop-down lists'. It means we can create a 'spare' extra product which conveniently stays out of the way but can be easily found when needed.

2022-04-15 - Refresh website demo reports to reflect improved formatting

2022-04-10 - Complete 'Provable Chemintro Correctness' test harness automation. You should ask us about this!

2022-04-06 - Rework nanoscale categorisation to suit recent AICIS changes. Added a 'Not known' selection alongside 'Yes/No'.

2022-03-30 - New 'Product-chemical proportions' screen showing only non-zero volume ingredients. Added volume display with comma-formatted large numbers.

2022-03-23 - Simplify bulk package pricing

2022-03-21 - Minamata Convention changes deployed for products containing Mercury

2022-02-01 - Add consultants page to cover multiple company scenarios

2022-01-27 - Test-harness development commences for 'Provable Chemintro Correctness'

2022-01-21 - New set of AICIS 'Useful links' auto-created for comparable CAS number

2022-01-12 - Add sitemap.xml and excluded parts of the site from search engines

2022-01-01 - International assessments declaration to suit new AICIS requirement

2021-12-18 - Engage Adrian Thomas as technical consultant

2021-12-02 - Welcome email upon registration

2021-11-18 - Website 'Contact' form

2021-11-10 - Revise process flow and automate AICIS links

2021-11-04 - Polymer percentages changed from integers to decimals

2021-10-28 - Rework to allow starting with product instead of chemical

2021-09-09 - Environment/Health notes and oecd tests simultaneously with categorisation

2021-08-24 - Added Introduction 'Submitted' and date fields for user info

2021-08-24 - Health and environment risk added to computed comment

2021-08-24 - Trade secrets approach with Agent role hiding data

2021-08-05 - AICIS fee calculator page

2021-08-05 - Home page adjusted for visitors to self-select their focus

2021-08-02 - Implement Exclude/Include actions to allow control over Annual Summary

2021-07-26 - Archive introduction data on the date annual declaration is submitted

2021-07-09 - Comma formating for large numbers in Introduction report

2021-07-09 - Link and Note "Not applicable" in title defeats software

2021-07-05 - First used for AICIS introductions

2021-06-23 - Added job_title to userprofile for Annual Summary report

2021-06-01 - Three decimal places for percentage Max concentration and Proportion

2021-05-25 - Added licence terms acceptance prior to producing Introduction report

2021-02-14 - Excluded entire site from all search engines

2020-12-14 - Revisions bumped from 0.0.0 in stages to 0.9.0

2020-10-16 - Project commences