CLEAPSS Supporting practical science and technology
CLEAPSS Technicians
CLEAPSS Supporting technicians

Technicians play a vital role in supporting the teaching of exciting, effective science safely. CLEAPSS provides guidance on all aspects of being a technician and resources such as stock lists, templates for laboratory checklists, requisition sheets, labels and much more to help technicians in their jobs. CLEAPSS actively works with other organisations to raise the status of technicians in schools.

We also post details of technician networks and job vacancies.

If you need help or advice or would like to share a technician tip please get in touch by email or phone.

Working with glass

Latest news from CLEAPSS..
Start of Term - Lab Checks
The start of term is an ideal time to do some basic checks in your labs. Aside from the more basic checks like are the sinks clear, and do the taps work. There are more important checks to be made...

All benches / worktops / bollards which have gas taps should not allow any movement (in any direction). CLEAPSS has repeatedly found loose worktops, benches and bollards which can wobble and move considerable amounts. This can damage the supply gas pipe, which in turn could lead to a gas leak. 

Watch this video for an example of the issue. 

If you do discover any movement, then the gas in that lab should be turned off and the gas should not be used until repairs have been made to stop the movement. After these repairs the gas system should be checked by a Gas Safe engineer. (This is often called a tightness test)

If you do discover a gas leak in a lab then turn off the gas supply within the lab, then follow the school procedure(s) to evacuate the building and call 0800 111 999 (if you have LPG then call the supplier number, FLOGAS 03457 200100 or CALOR GAS 03457 444999). 
Remember do not use any flames, or operate any switches on or off, and do not use your mobile phone until you are outside.
Are you a new technician?
Welcome to the CLEAPSS science website. You can find specific resources by adding a key word to the search box. Chemicals can be searched by formula as well as by name.

Our guide for the induction and training of new technicians can be found here.
You can find our guide for model risk assessments for laboratory technician activities here

For further advice you can email the Helpline via the tab on the website or if more urgent call on 01895 251496.

Technicians' Workshop
Looking for an idea for a workshop at your next technician network meeting or conference?Then click here to learn more about the Technicians' Workshops organised by SciLabware. They're designed to help improve knowledge and understanding of the features and benefits of glass and plastic laboratory ware.
Spam Emails
CLEAPSS have been made aware of spam purportedly coming from CLEAPSS accounts with links and / or attachments to invoices. All CLEAPSS emails are all digitally signed and any spoofed / spam emails should be rejected as fake by your mail server if it has been configured correctly, however many aren't!!

In light of this, please make sure you check that the email is from a genuine before following any links or opening attachments.

Signs of fake emails:
  • you weren't expecting the email / invoice.
  • the from email address does not match the from name.
  • phone numbers in the footer are not the CLEAPSS number ( 01895 251496 )
  • check by hovering over a link, CLEAPSS only uses WorldPay for online payments.
  • the English or grammar is poor, or amounts requested are in dollars.
If in any doubt about the authenticity of any CLEAPSS email then please contact us BEFORE opening any attachments or following any links.
CLEAPSS at ASE Conference 2019
Once again CLEAPSS had a large presence at the 2019 ASE Conference in Birmingham.

Find all the resources from our workshops and talks here.


Technicians Resources
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Members only resource Click to download Document.
Guidance on the preparation of strontium chloride and strontium nitrate(V) solutions.


Members only resource Click to download Document.
Guidance on teaching students effective titration technique.

Free resource Click to download Document.
Handling methanol safely in practical work. Methylated spirits is mainly ethanol with a little methanol added. Methanol is toxic as well as highly flammable.

Members only resource Click to download Document.
This edition includes notes of the Getting Practical project, swine flu, a whoosh bottle incident, water supplies to labs, and possible electric shock from computer trolleys. In a D&T special ther.. more

Free resource Click to view on YouTube
Demonstration showing how to use a microwave and marshmallows to calculate the speed of light.

Members only resource Click to download Document.
Audiences and events at school open evenings are much harder to control than those in normal science lessons. This leaflet gives sensible advice on activities which are best not undertaken, and those .. more

Members only resource Click to download Document.
A simple investigation, with clear procedural advice, on looking at how chemicals affect the cytoplasm of red onion epidermal cells.

Members only resource Click to download Compressed Folder.
The zip folder contains the software necessary to use the CLEAPSS USB counter module. The full instructions for making the module can be found in Guide GL118. To run the software, you need to download.. more

Free resource Click to view on YouTube
The video demonstrates how to safely sub-culture a fungus by transfer to an agar plate containing nutrients.

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