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The Laboratory People

Camlab's blog and information database

Category: Water purifcation

What is Suspended Solids?

October 14, 2019September 8, 2020 Karen Lemon

What is Suspended Solids? Suspended solids refers to small solid particles which remain in suspension in water. It is used…

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High-Quality Pyrex Glass Components in a Water Still

May 4, 2018April 26, 2022 Luke Scicluna

SciLabware’s Quickfit range has introduced a new QWS4 Water Still. Manufactured in the UK, the QWS4 is the only water still…

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What’s the difference between distilled and deionised water?

March 23, 2018September 8, 2020 Karen Lemon

“Pure” water is used in all types of laboratories for a range of uses – from making up calibration standards…

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How to install the W4000 Bibby Merit Water Still

June 16, 2017June 13, 2017 Sophie Bryant

The W4000 Bibby Merit Water Still is a great option for labs needing small quantities of distilled water. The still…

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Deionised water in a beaker

What is the pH of distilled water?

February 3, 2017June 8, 2017 Sophie Bryant

Purified water from distillation, deionisation or reverse osmomsis purification systems will usually have an acidic pH. But why is the…

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filters for suspended solids analysis

How do I measure suspended solids? How is the gravimetric method different to other methods?

February 29, 2016March 2, 2016 Sophie Bryant

The measurement of Suspended Solids is often required for discharge consent, and values may be reported to the Environment Agency…

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Deionised water in a beaker

How can I check my deionised (DI) water?

February 12, 2016February 24, 2016 Sophie Bryant 2 Comments

Laboratories using a deioniser system to generate deionised (or DI) water in house should test the water produced regularly, to…

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Are Instachlor tablets suitable for use in drinking water? What approvals do Instachlor tablets have?

January 15, 2016January 4, 2016 Sophie Bryant

Q: Can I use Instachlor tablets to treat drinking water? What approvals or standards do the tablets meet?

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High range chlorine testing – what are the options?

September 30, 2015September 23, 2015 Sophie Bryant

Higher range chlorine solutions are typically used for disinfecting products but standard chlorine meters often cannot measure to higher ranges….

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How can I measure temporary and permanent water hardness?

August 26, 2015August 25, 2015 Sophie Bryant

Hard water is water with high levels of dissolved minerals, and usually occurs in areas where limestone and chalk are common….

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What is TDS?

May 29, 2015 Emma Atkin

Answer: Total Dissolved Solids (TDS) is a measure of the combined content of all the inorganic and organic substances such as…

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What’s the difference between free and total chlorine?

November 13, 2014November 4, 2014 Sophie Bryant

Most methods of measuring chlorine in water refer to free and total chlorine, but what exactly do these mean and…

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