What vials and sample cells are compatible with my Hach DR1900?
The DR1900 by Hach is a portable spectrophotometer with over 220 pre-programmed test methods, accepting the Hach and the Lange…
Tag: Hach
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…
What vials and sample cells are compatible with my Hach DR300?
The DR300 by Hach is a robust, portable single parameter colorimeter. It is the follow on from the Pocket colorimeter…
Hach Sample Cells – Explained
Hach have a wide variety of sample cells for use in their colorimeters and spectrophotometers. The correct type of sample…
How do turbidity meters work? What does ratio and non ratio mean in a turbidity meter?
Turbidity meters are used to quickly measure the turbidity (or cloudiness) of water, caused by suspended solid particles. Understanding how…
Which methods can be accelerated by using the HT200S?
With high speed digestion technology (HSD), the HT200S is a great solution for the busy lab, speeding up digestion times…
Q. I need to test water for Iron, which one do I choose?
A.Trying to pick out the correct test can prove to be a challenge. There are a number of different tests…
Why is my turbidity reading higher/lower than expected?
For an accurate measurement of turbidity a sample vial is placed in an nephelometer meter called a turbidimeter or turbidity…
Measuring high levels of free chlorine in water
Measuring high levels of free chlorine can be problematic; Colorimeters used to test free chlorine are based on a colour change…
Macherey – Nagel VISOCOLOR Powder Pillows
Macherey-Nagel have a selection of VISOCOLOR Powder Pillows available for free Chlorine, total Chlorine and pH photometric determination.
What’s the difference between Phosphate tests for Orthophosphate, Total Phosphorous, Acid Hydrolyzable Phosphates and Organic Phosphates?
Phosphate tests are often stated as reporting Orthophosphate or Total Phosphorous, but can also give other parameters like Acid Hydrolyzable…
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…