What is Suspended Solids?
What is Suspended Solids? Suspended solids refers to small solid particles which remain in suspension in water. It is used…
Tag: Wastewater
What vials and sample cells are compatible with my Hach DR900?
The DR900 by Hach is a robust, portable colorimeter, capable of performing many dozens of different tests, supporting the Hach…
Where can the WTW reagent free COD method be used? How does reagent free COD compare to standard methods?
WTW has developed an innovative reagent free system to measure COD, Nitrate and Nitrite without the need for vials. The…
Which filters are best to prepare samples for heavy metals analysis?
Filtering water samples before ICP-MS or HPLC analysis for heavy metals testing is good practice – to help protect these…
Why is silicone oil important in turbidity meter measurements?
Q: Our turbidity meter comes supplied with a bottle of silicone oil. What is this for? Why is it important…
Which Hach benchtop turbidity meter should I choose? What’s the difference between TU5 and TL23 Turbidity meters?
Q: I am looking for a new benchtop turbidity meter, but Hach offer two versions – the TL23 series and…
Hach 2100N and 2100AN Turbidimeters replaced by new TL23 series
The popular 2100N and 2100AN series of turbidimeters (turbidity meters) are being phased out and discontinued. They are replaced by…
Can I use a moisture balance for suspended solids analysis?
Suspended solids is widely used as an indicator of water purity, particularly in discharge consent. When testing by the full…
Did you know the BD600 BOD system is mercury free?
The new BD600 BOD measurement system from Lovibond replaced their Oxidirect system in 2015 and has proved to be a…
What is the difference between standard and Mercury Free COD vials? Can I switch to Mercury Free vials?
COD tests are vital in many industries for the monitoring of effluent and discharge consent. The most common test method…
How do I measure suspended solids? How is the gravimetric method different to other methods?
The measurement of Suspended Solids is often required for discharge consent, and values may be reported to the Environment Agency…
How should I clean a Hach Pour Thru cell?
Q: How should I clean my Hach PourThru (pour through) cell? Pour Thru cells are used in some Hach tests for…