Hydranal ™ Available from Total Lab Supplies

Hydranal ™ reagents for Karl Fischer (KF) titration have been recognised as the most trusted brand in the industry and are available from Total Lab Supplies.

The Hydranal Center of Excellence has secured the accreditation as test laboratory according to ISO/IEC 17025 and the accreditation as reference material manufacturer according to ISO Guide 34. With this double accreditation, we are part of a select group of laboratories worldwide that can guarantee the highest level of certified quality.

Download the brochure here

Volumetric KF Titration, Coulometric KF Titration, Water Standards, CRM Water Standards, Auxilliaries for KF Titration and more.

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Today in Science

On this day in history, in 1947, the B.F. Goodrich Company of Akron, Ohio, announced the development of a tubeless tyre.
A technological innovation that would make cars safer and more efficient.
After more than three years of engineering, Goodrich’s tubeless tyre effectively eliminated the inner tube, trapping the pressurised air within the tire walls themselves. By reinforcing those walls, the company claimed, they were able to combine the puncture-sealing features of inner tubes with an improved ease of riding, high resistance to bruising and superior retention of air pressure.  Testing proved successful, and in 1952, Goodrich won patents for the tyre’s various features.  By 1955 tubeless tires became standard equipment on new cars.
Tyres have moved on since with run flat tyres but the basic design has remained the same.
Total Lab Supplies can’t offer tyres but we can offer other safety items.  If you have any requirements get in touch – we can supply safety storage cabinets, spill kits, safety spectacles, signs, labels, gloves and hazardous waste disposal and more
For more information visit:-
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Water and Wastewater measuring solutions

WTW offers the most complete series of measuring instrumentation as well as accessories for the measurement and monitoring of water and wastewater.

The product lineup comprises portable meters, such as pocket meters, photometers and samplers, benchtop meters such as the inoLab® series, filter and spectral photometers and turbidity meters, stationary measuring systems like the IQ Sensor Net, analog monitors, samplers and systems for measuring drinking water, analyzers of the TresCon® series, for the IQ Sensor Net or drinking water, digital as well as analog and conventional sensors and accessories for almost all products.

Please download the flyers below for more information:-

pH Brochure

pH Brochure 2


BOD and Oxitops

Get in touch now to discuss your requirements.  Quality German engineering!Spectrohotometer

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Separated thermometer columns

Methods For Reuniting Separated Columns In Thermometers

The largest single cause for the failure of precision thermometers in the lab is the separation of mercury columns. This can occur in transit or in the lab. The life of the thermometer can be greatly extended if the following procedures are employed. Other methods may damage the thermometer.

Cooling Method

With the thermometer in an upright position, gradually immerse only the bulb in a solution of solid CO2 (Dry Ice) and alcohol so that the mercury column retreats slowly into the bulb. Do not cool the stem or mercury column. Keep the bulb in the solution until the main column and the separated portion retreat into the bulb. Remove and swing thermometer in a short arc, forcing all the mercury into the bulb.

Most mercury thermometers can be reunited using this method regardless of range (with the exception of deep immersion thermometers) provided only the bulb is immersed in the CO2 and alcohol solution.

Caution: Do not touch the bulb until it has warmed sufficiently for the mercury to emerge from the bulb into the capillary. Never subject the stem or mercury column to the CO2 solution as it will freeze the mercury column in the capillary and may cause the bulb to fracture.

Heating Method

This method applies to thermometers with a maximum range of 260°C (500°F) equipped with expansion chambers sufficiently large to accommodate the separations plus a portion of the main column. Immerse as much of the bulb and stem as possible in a large beaker containing a liquid whose flash point is well above the highest indication of the thermometer being reunited. Heat the beaker, stirring the liquid with the thermometer, until the separation and a portion of the main column enter the chamber. Tap the thermometer in the palm of gloved hand reuniting the column. Allow to cool slowly.


  1. Never use an open flame on the bulb.
  1. Never fill the expansion chamber more than two-thirds full.
  1. Make certain the flash point of the liquid is well above the highest temperature indicated on the thermometer.
  1. Thermometers whose ranges exceed 260°C (500°F) cannot be reunited using heat without damaging the instrument.

Reuniting Organic-Filled Columns

Separated columns in organic-filled (spirit) thermometers require a somewhat different technique in order to be reunited. The simplest and safest method is to force the liquid down the capillary by using a centrifuge, if one is available, with a cup deep enough to ensure that the centrifugal force is below the liquid column. Carefully insert the thermometer, bulb down, in the centrifuge. Have some cotton wadding at the bottom of the cup to prevent any damage to the bulb. Turn on the centrifuge and in just a few seconds all the liquid will be forced past the separation. If the cup is not deep enough and all the centrifugal force is not below the column, the column will split, forcing part of the liquid down. The remainder will be forced up, filling the expansion chamber.

If a centrifuge is not available, the column can be reunited by getting the liquid to run down. This can be accomplished by holding the thermometer in an upright position and gingerly tapping the stem above the separation against the palm of your hand. As you gently tap the thermometer, observe the liquid above the separation until it breaks away from the wall of the capillary and runs down to join the main column.

Remember, mercury in glass thermometers are no longer available.  Contact us for equivalent thermometers which can be supplied as they are or with UKAS calibrations.

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Time to cool down

labcold, refrigeration, pharmacy, vaccine, sparkfree

Total Lab Supplies offer the full range of Labcold Refrigeration equipment.

From Sparkfree Lab Fridges and Freezers to Pharmacy and Vaccine refrigerators.

The RLPR0517 Sparkfree Refrigerator is engineered to store flammable materials safely with no sources of ignition inside the chambers.  It also comes with a new touchscreen controller.  Download the pdf brochure here RLPR0517.

Also available are a wide range of pharmacy & vaccine refrigerators.  Powered by the unique IntelliCold™ Controller that provides both superior temperature uniformity and, together with improved insulation, increases energy efficiency. This fridge is also packed with extra functions designed to store temperature sensitive pharmaceuticals in optimum conditions and assist busy professionals with regulatory requirements.

Take a look at the pdf brochure here RLDG0510A

If you have any refrigeration requirements then please contact us.

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The Right Weigh Forward!!

Radwag offer a full range of analytical,precision balances and micro balances.

Depending on the model, features include detachable terminal, various communication ports, statistical control, density determination, compliance with USP, touch screen or LCD displays, parts counting, ability to export data and much much more…

Moisture balance

Basic Moisture Balance

Analytical Balance

Analytical Balance

Radwag have Professional, Advanced and Basic models to choose from depending on features required and budget.

A range of Moisture balances is also available.

Download the flyer now and check out the details.

Total Lab Supplies Radwag Balance Flyer

UKAS calibration and balance servicing available too.

Why not consider a genuine alternative?  Radwag.


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Ultra-Micro Balances and Micro Balances

Extraordinary precision and comfort of operation for small mass measurement performed with the highest accuracy.

Often think there’s little choice when it comes to Ultra-Micro and Micro balances?  And that they’re really quite expensive?

Why not consider a genuine alternative?  Radwag.

Radwag is a well-known leading manufacturer of electronic weighing instruments in Europe and overseas.  They’re not as well known in this country but are supported in the UK by a dedicated support network and manufacture to strict ISO guidelines.

Balances can be calibrated to UKAS and serviced here in the UK.

The full range includes analytical and precision balances, moisture balances and more.

  • 5.7” touch screen
  • Interactive menu
  • Wireless connection
  • Conformity with regulations (GLP, GMP System)
  • Database (weighing records, samples, operators, reports)
  • Dynamic control of sample weight (bargraph)
  • Statistics, SQC
  • Printouts, reports (PCL standard)
  • Multilingual menu
  • Interfaces: Ethernet (network applications), USB, RS 232, IN/OUT

Download the Ultra-Micro balance brochure here  Ultramicrobalances-and-microbalances.


There is a choice. A genuine alternative!  Radwag!

Call now with your requirements. Ask for a demo!

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Do you need a catalogue?

Do you need a catalogue?  Total lab Supplies have a quantity of general chemical and consumable catalogues left.  Simply contact us to request one.

We can supply a full range of chemicals from various leading brands such as Honeywell including Hydranal and Fluka as well as Sigma, Alfa, Fisher and our own brand.

We also offer a full range of equipment from balances and stirrers to ovens and washing machines as well as various consumables from beakers to flasks.

We would love to hear from you so if your require any further information or would like to place an order then pelase do not hesitate to contact our sales desk on 01744 455000.

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Stuart Equipment

Looking for a Hotplate or Hotplate/Stirrer? Don’t settle for second best.

Stuart offers a comprehensive range of hotplates and hotplate stirrers. Hotplate/stirrers are available in two sizes 16x16cm and 30x30cm. 30x30cm units all have simple analogue control and are available with either a robust metal alloy surface or a chemically resistant ceramic one.

Download the pdf flier for more information.


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