Working at the interface of science & technology....

We specialise in the manufacture of health, industrial and diagnostic solutions and provide specialty services for the building industry, environmental & industrial sectors.

PLEASE NOTE:

Our communications systems are being updated and upgraded, this process requires us to switch providers and consolidate our services to meet all the requirements of the upgrade. You can find more information here.

Products: New - eShop for Metallography Bringing you the best resource for metallography products- we've put our expertise in chemistry and formulation technology into an on-line eShop called EtchantsUK.

Welding Diagnostics These solutions are important teaching aids and indispensable diagnostic tools; they are a simple, quick, effective and cheap way of evaluating the characteristics of a metal weld.

Super-Hard Metal A super-hard metal has been made in the laboratory by melting together titanium and gold. The alloy is the hardest known metallic substance compatible with living tissues, says US physicists.

Metallographic Examination Solutions Whatever your needs, from revealing the general structure of metals to phase identification, we have the micro-etching solution appropriate for your metallographic examination needs.

Impurities Friend or Foe? Impurities in and on raw materials and products can substantially enhance the properties of a welded material or weaken it to such an extent that it causes complete failure of the product. This article is designed to explore the application of impurities in welded metals and how to mitigate their undesirable effects.

Haemoglobin Screening Solution Notes Pre-donation haemoglobin screening is one of the first tests performed in the blood donor selection process; its aim is to prevent the collection of blood from an anaemic donor. It is therefore essential, that there should be an accurate and reliable method for haemoglobin determination at the point of collection.

Haemoglobin Screening Solution (Male Patients) A clear green solution of aqueous Copper Sulphate with a specific gravity of 1.055 used for pre-donation screening of Haemoglobin in male patients.

Haemoglobin Screening Solution (Female Patients) A clear blue solution of aqueous Copper Sulphate with a specific gravity of 1.053 used for pre-donation screening of Haemoglobin in female patients.

Deoxidise, Desmut, Degrease We manufacture and distribute a wide range of chemicals for the pre and post fabrication treatment of metals and plastics.; More…

Services: New - eShop for Metallography Bringing you the best resource for metallography products- we've put our expertise in chemistry and formulation technology into an on-line eShop called EtchantsUK.

Thinking of renovating your property? Sand, cement, lime and other building materials have only recently been well defined, renovations to a building in excess of 100yrs old can result in irreparable damage to your property; changing the thermo-dynamics of the infrastructure and spoiling the look and feel of your building space.

The Inevitable Question and the choice that everyone has to make.. How do I repair a building when the original building materials are no longer available? Will it matter if the repair is not visible or can it be conveniently covered by appropriate coatings?

Hygroscopic Salts Poor building control, inappropriate architecture, inadequate ventilation and a whole host of minor building defects and poor management processes can lead to the migration and subsequent concentration of soluble salts at the surface of your building.

Guideline for the Treatment of Radioactivity in Raw & Potable Water This guidance note is only applicable to raw and potable water that is intended for drinking, or for use as an agricultural or horticultural water source; it is designed to assist in identifying suitable treatment regimes for improving the quality of the water with respect to natural radionuclide content only.

Drinking Water Sampling Instructions Sampling, Storage & Transportation of Drinking Water Samples.

Guideline for the Treatment of Iron & Manganese in Raw & Potable Water. This guidance note is only applicable to raw and potable water that is intended for drinking, or for use as an agricultural or horticultural water source; it is designed to assist in identifying suitable treatment regimes for improving the quality of the water with respect to the iron and manganese content only.

Making a 'Quality Life' Accessible to all The key to improving the quality of life is access to information and resources that enable you to change a life.

The Silent Killer COPD (Chronic Obstructive Pulmonary Disease) is a major cause of disability and death. It is the 4th leading cause of death throughout the world.

Process Water gets a makeover Increasingly systems are failing because of a lack of information regarding the most important part of the system; the heating or cooling media.; More…

Company: Happy New Year Happy New Year and welcome to 2019 where the possibilities are endless, opportunities created and plans crafted for success!

The Last Days of 2018 Waterfall & O'Brien will be shutting down over the Christmas period.

New - eShop for Metallography Bringing you the best resource for metallography products- we've put our expertise in chemistry and formulation technology into an on-line eShop called EtchantsUK.

Visiting WoB Information about the physical location of Waterfall & O'Brien and how to get to us.

Bacteriological Sampling Sampling, Storage & Transportation of Water Samples for Bacteriological Testing.

Sending Stuff to Waterfall & O'Brien If you ever need to communicate with us via the post; sending a letter, parcel or sample this is the easy way to do it!

The Dawn of Life The chemistry of every living thing is defined by six elements, from these six elements four different classes of biomolecules are created; these biomolecules produce every part of a living cell, but what makes it alive?

The Chemistry of Life The Periodic Table currently has 118 well defined and well characterised chemical elements, but only six primary elements are used to form a biological entity; every biological entity!

Refining the Information Process and Extending its Functionality To super-charge our website we need to refine the information flow, standardise the database connectivity process and add some extra global code to extend the functionality of the website.

What is knowledge without people to share it with? Now we have the basics it's time to announce it to the world, allow people to share and motivate its' growth; shape it according to its needs.

New Corporate Website This is the third incarnation of our website, the first two were innovative but difficult to manage, partly because they were hosted by third parties who restricted what software could be used on their equipment. This website is different... firstly because it is hosted by ourselves!

Introducing Waterfall & O’Brien An introduction to our facilities, our management systems and our operating procedures.

Sampling And The Answer to Everything! When you can do the common things in life in an uncommon way, you will command the attention of the world. (George Washington Carver)

Making a 'Quality Life' Accessible to all The key to improving the quality of life is access to information and resources that enable you to change a life.; More…

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