Posts tagged 'water testing'

Dipslides - All you need to know
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Dipslides - All you need to know

A dipslide is a means of testing the microbial content of liquids. This is a common method of monitoring and measuring microbial activity within many systems and commonly cooling systems. Usually the use of a dipslide is the first line of defence for the testing of microbial issues that could be caused to manufacturers and machine shop fluid systems. 

Dipslides consist of a plastic barrier which bears a sterile culture medium which can be dipped into the liquid being sampled. The resulting microbial colonies are estimated by reference to a chart. 

Dipslides are usually incubated for 48 hours after use and any subsequent bacteria in the sample water will grow and form colonies.

Lovibond's new TB 350 Turbidity Meter
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Lovibond's new TB 350 Turbidity Meter

Turbidity is a measurement of suspended particles in water that scatter or absorb light. For example, the more suspended solids there are, the murkier the water will appear and the higher the turbidity is. Turbidity will also depend on the size of the particles, as this will affect the scattering or absorption of light. Lovibond turbidity standards for TB 350 IR Why measure turbidity? ...
Enhancing Water Testing Efficiency with Kemio
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Enhancing Water Testing Efficiency with Kemio

Professionals in water utilities, environmental agencies, and industrial sectors require efficient and precise water testing solutions. The traditional methods often involve complex procedures and can be time-consuming. This factor and increasing regulatory requirements result in a growing demand for faster and more accurate testing technologies. Kemio Disinfection Multi-Parameter Instrumen...
A Guide to Basic Sewage Effluent Testing
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A Guide to Basic Sewage Effluent Testing

When it comes to sewage treatment, effluent testing is crucial in ensuring the quality of discharged wastewater. By performing regular tests, you can monitor the effectiveness of your sewage treatment process and ensure compliance with effluent standards. This blog will cover an overview of the importance of effluent testing, the methods involved, and the standards governing sewage effluent. ...
Preventing Cross Contamination
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DWK safety blog - Preventing Cross Contamination

Cross-contamination is a major issue in any lab setting as it can lead to inaccurate results, compromised experiments and even safety risks. Cross-contamination can occur when samples, equipment, or instrumentation are not properly sterilised between uses, and it can be a challenge to prevent it in a busy lab environment. This blog will cover some tips to help avoid cross-contamination of chem...
Camlab Pool Testing Kits
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Camlab Pool Testing Kits

Water testing is important when maintaining a pool or hot tub to make sure the water is safe to be in. The water can end up having too many or too little chemicals in it which can affect the pools hygiene and bacteria levels. The most frequently tested parameters are pH, chlorine (free and total), bromine, alkalinity and calcium hardness. Camlab have created water testing kits for testing thes...
DPD tablets
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DPD tablets

DPD tablets (diethyl-p-phenylenediamine) are used to determine chlorine in water and can also be used to test bromine, iodine and other disinfectants. These tablets come in four different types and are used alone or in combination, depending on your measurement parameter. The convenience of using a rapid version is that it dissolves quickly but is used as a visual test only. Image of DPD ta...
Horiba's LAQUA Range
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Ground Water and Surface Water testing, a solution from Horiba's LAQUA Range

Testing of ground and surface water is a key part of routine testing for water companies. Depending on the need, a number of different parameters are often assessed.  The Horiba LAQUA range has a meter specifically designed for this type of analysis. The U-50 series of multi-parameter meters enables the simultaneous measurement and monitoring of up to 11 parameters with one ...
New Portable Spectrophotometer
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New Portable Spectrophotometer - includes nephelometric correction

The new NANOCOLOR Advance portable spectrophotometer from MACHEREY-NAGEL works with their extensive range of colourimetric test kits for water and wastewater analysis. This instrument provides an alternative to their photometer and spectrophotometer range. It includes a touch screen display that allows user-friendly interactions similar to a smartphone or tablet as well as including the abilit...
What is Alkalinity
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What is Alkalinity and should I be worried about it in my Pool or Hot Tub?

With all pools or hot tubs, one of the most important jobs is making sure that your water is regularly tested and safe to use. There are a number of parameters that can be measured including the disinfectant levels (usually chlorine or bromine), pH and alkalinity. What is Alkalinity? Alkalinity, normally referred to as total alkalinity, is the measurement of the alkaline salts (carbonat...
How can I measure low sodium concentrations with an ISE?
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How can I measure low sodium concentrations with an ISE?

Sodium's chemistry means that you cannot measure it's concentration with a simple test kit or reagent and photometer combination, like you would with many other water quality parameters. There are a number of available options (read more here). But using an ISE is the most commonly used within the water testing industry. ISE measurements can be a tricky method to master and relies careful ...
Hach release new LCK vials for ammonium
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Hach release new LCK vials for ammonium

Hach have released two new LCK vials for use with their spectrophotometers for use when testing for ammonium. The DR1900 portable spectrophotometer Hach LCK503 13mm Ammonium cuvette test 10-100 mg/L NH4-N, 25 tests Compatible with Hach Spectrophotometers - DR1900, DR3900 and DR6000. Available here. Test Specifications: According to standard: ISO 7150-1, DIN 38406 E5-1,...
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