Laboratory Safety: is your lab as safe as it can be?

At Asynt we are very much concerned that our key products don’t just offer the best value but also the very best in terms of quality, features and of course uncompromised safety benefits. Laboratory safety: is your lab as safe as it can be?

We have often been quite quiet about some of the safety features that our products offer so here is an attempt to try convey some important areas on a couple of our most popular items.

A key feature in the majority of synthetic chemists fume hoods is the humble hotplate stirrer which is usually quite a simple device with a heating circuit and magnetic drive. There are many brand choices available to chemists for these, varying in quality, performance and of course price. So how does the chemist balance the budget and ensure good performance without compromising on laboratory safety?

Manufactured in Germany, the Asynt hotplate stirrer itself offers two built-in and totally independent temperature control circuits. One is the normal control dial to adjust the temperature of the hotplate or solution temperature but the additional circuit is adjusted by a small screwdriver and works as a limit controller. It is very useful to enable a maximum set temperature and this feature would be especially beneficial in teaching laboratories and alike. This independent limit control ensures in the unlikely event of a failure of the main control circuit that the limit you set cannot be exceeded.

At Asynt we offer a very popular purchase solution for our customers in which we offer not only the hotplate stirrer alone but as part of a useful fully inclusive package. This package includes a support rod and boss but, more importantly for the discerning chemist, an additional temperature controller which improves reproducibility and accuracy to 0.5C. More importantly with this in place the chemist actually has, with the Asynt kit, a total of three independent temperature control circuits allowing safe use. This is especially important when in use unattended overnight for example. Many lower cost hotplate stirrers still only have the one circuit which, if it were to fail, could lead to overheating so having three is a key safety feature that our no compromise customers are keen to have.

Asynt hotplate stirrer kit with temperature control

Asynt hotplate stirrer package

Safe heating with the DrySyn oil-free platform

Many of you know and use our DrySyn heating blocks to heat and stir round bottom flasks on a regular basis, but there are still some chemists out there using oil baths. Back in 2003 when we developed DrySyn we introduced an all-encompassing PTFE shield to protect the user from burns. Interestingly, however, it proved unpopular in comparison to safety handles – but why? Feedback received from our customers allowed us to come to a couple of conclusions and it became clear to us that the safest way to use a heating block was not to have a cover, but to have handles.

The danger of burns in the laboratory is a serious one of course so it is key that chemists and lab managers ensure good working practices. Potential burns associated with a flask heating block are unlikely to come from a “brush” with the metal itself during use. The highest potential burn risk is from a user going to pick up a heating block from a hotplate stirrer whilst still hot; the problem here with a PTFE covered block without lifting handles is that their fingers will most likely touch the hot underside where there is no insulation… Ouch.

All of our DrySyn single and multi-position bases have permanently attached heat-resistant safety lifting handles so the user will be naturally inclined to pick up DrySyn by the handles meaning that even if the block is still very hot, a burn is highly unlikely.

View the DrySyn range here with options for both heating and cooling, in single and multi-position formats:  DrySyn Range

In Best Practice:  a free guide to safe heating with oil-free blocks

You can download our complementary PDF guide here:

“In Best Practice – Safety Guide to Laboratory Heating Blocks”

The Laboratory Safety Institute

We’ve partnered with The Laboratory Safety Institute to help you access a massive amount of laboratory safety resources, including courses, webinars, video courses, blogs, and more.  Click the image for further information:
The Laboratory Safety Institute

Talk to us today about laboratory safety and smart changes that will help your team work safely at all times.