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The Laboratory People

Camlab's blog and information database

Tag: Wastewater

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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What vials and sample cells are compatible with my Hach DR900?

September 20, 2019November 4, 2022 Sarah Brudenell

The DR900 by Hach is a robust, portable colorimeter, capable of performing many dozens of different tests, supporting the Hach…

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PhotoLab 7600 spec by WTW

Where can the WTW reagent free COD method be used? How does reagent free COD compare to standard methods?

June 23, 2017June 20, 2017 Sophie Bryant

WTW has developed an innovative reagent free system to measure COD, Nitrate and Nitrite without the need for vials. The…

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Which filters are best to prepare samples for heavy metals analysis?

June 20, 2017June 20, 2017 Sophie Bryant

Filtering water samples before ICP-MS or HPLC analysis for heavy metals testing is good practice – to help protect these…

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Why is silicone oil important in turbidity meter measurements?

May 15, 2017April 27, 2017 Sophie Bryant

Q: Our turbidity meter comes supplied with a bottle of silicone oil. What is this for? Why is it important…

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FTU-NTU_Turbidity

Which Hach benchtop turbidity meter should I choose? What’s the difference between TU5 and TL23 Turbidity meters?

April 19, 2017April 18, 2017 Sophie Bryant

Q: I am looking for a new benchtop turbidity meter, but Hach offer two versions – the TL23 series and…

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2100 to TL23 turbidimeter replacement

Hach 2100N and 2100AN Turbidimeters replaced by new TL23 series

January 13, 2017January 13, 2017 Sophie Bryant

The popular 2100N and 2100AN series of turbidimeters (turbidity meters) are being phased out and discontinued. They are replaced by…

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Suspended solids

Can I use a moisture balance for suspended solids analysis?

August 5, 2016August 4, 2016 Sophie Bryant

Suspended solids is widely used as an indicator of water purity, particularly in discharge consent. When testing by the full…

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Clean Water

Did you know the BD600 BOD system is mercury free?

April 29, 2016April 19, 2016 Sophie Bryant

The new BD600 BOD measurement system from Lovibond replaced their Oxidirect system in 2015 and has proved to be a…

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What is the difference between standard and Mercury Free COD vials? Can I switch to Mercury Free vials?

April 6, 2016September 14, 2018 Sophie Bryant

COD tests are vital in many industries for the monitoring of effluent and discharge consent. The most common test method…

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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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LZV899 pour thru

How should I clean a Hach Pour Thru cell?

February 8, 2016February 24, 2016 Sophie Bryant

Q: How should I clean my Hach PourThru (pour through) cell? Pour Thru cells are used in some Hach tests for…

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  • Did you know..... Black holes are invisible since their gravity is strong enough to prevent light from escaping.… https://t.co/QgeT2Gvxui (8 hours ago)
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