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. For help with finding these resources see here. 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.

Latest news from CLEAPSS..

Calling all Biologists!

CLEAPSS Guide GL499 – DIY Centrifuge provides a complete, school ready design for a 12,000 RPM centrifuge with interlock, USB power and capacity for standard 1.5 ml tubes. Find it in What's New

The guide includes STL files for 3D printing the enclosure, rotor and handle, a DXF file for laser cutting the acrylic lid, a detailed components list, circuit diagram and fully illustrated assembly procedure. (Additional files found under GL499a)

The Science Teaching Survey 2026

The Science Teaching Survey 2026 is open! If you work in education, you know the challenges better than anyone – so we want to hear directly from you.

Take 15 minutes to complete the survey. Your answers will tell us what to focus on

https://schoolzone.questionpro.com/rc25f8?custom1=CLEAPSS

Product Recalls

CLEAPSS is aware of an issue of Asbestos being present in a Hobbycraft and other manufacturers sand based products.

These are commercially available products rather than a specialist school science/DT product. However, we are aware that some schools may have these products.

If you do have these products you should follow the advice given in the below link.

OPSS - Safety Alerts

Copper Sulfate

CLEAPSS has recently received multiple Helplines about incidents with copper sulfate.

This includes situations where pupils are deliberately consuming Copper Sulfate, please ensure you enforce the no eating / drinking rules in your labs and also are aware of how to deal with emergencies.

E-cards : How to deal with lab emergencies

No eating or drinking guidance

Please also review the updated Hazcard before using copper sulfate.

2025 Hazcard updates includes and update to the safety advice for copper sulfate. Hazcard 027C - Copper Sulfate

PP027 - Making copper sulfate crystals

A quick and safe method for preparing hydrated copper sulfate crystals and beautiful blue crystals may be obtained within 30 minutes.

LabAid

Do you have excess equipment taking up space ?

Or looking to help support practical work ?

Then have a look at the work that LabAid does.

Technicians Resources

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GL018 - Food tests

This document explains how to carry out a circus of qualitative food tests for:carbohydratesstarch – iodine testreducing sugars - Benedict’s testnon-reducing sugars – hydrolysis then Benedict’s test p.. more

GL266 - Laboratory electrical supply

Originally in section 6 of the CLEAPSS Handbook, this document covers safety of the mains supply to a lab. It includes information on fuses, circuit breakers, and simple safety advice.

TL019 - Using the Daphnia heart as a model for the human heart

Many experiments involving human heart rate are often unreliable or difficult to carry out. This document gives practical guidance on carrying out a range of investigations on Daphnia heart rate, whic.. more

Cloud chamber part 1 - Making the chamber and using with dry ice

Making the cloud chamber

Bulletin 156 - Summer 2016

Advice for teachers of the new Science A level courses, plants for photosynthesis practicals, latest updates to the faulty Bunsen burners story, how to safely view the transit of Mercury, disposal of .. more

RB089 - Eosin

Guidance on how to prepare eosin.

PS041 - Repair and service agents for electrical laboratory equipment.

A list of companies which will repair and service a range of electrical equipment used in school laboratories.

GL221 - Restoration or disposal of a lead-pot boxes for radioactive sources

This guidance is for restoration or disposal of the lead-pot wooden boxes that are commonly used for supplying and storing 'cup-style' sealed sources in school science departments.

SRA015 - Preparing and exploding nitrogen triiodide

Instructions, including control measures, for preparing and demonstrating this interesting explosive substance.Note:- These activities are designed to be carried out individually as part of a lesson c.. more

HC089 - Sodium chlorate(I) & dichloroisocyanurate

Chlorate also known as sodium hypochlorate (bleach), dichlorisocyanurate also known as sodium troclosene.

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