advanced
water analysis technologies
New "How to Guides"
To support our recently launched training services we've also introduced a new bi-monthly "How to Guides" feature. These useful "How to Guides" will be available via e-mail and will feature procedures for a range of common tests. Each guide will give you step-by-step instructions, supporting photos and handy tips on how best to perform each test. We hope you find them useful.
Using a Checkit Comparator
Checkit comparators are a low cost, robust and effective tool to determine multiple parameters including aluminium, ammonia, bromine, chlorine LR/HR, chlorine dioxide, copper, DEHA, iron LR/HR, molybdate, nitrate HR, nitrite LR, ozone, pH, phosphate LR/HR, silica VLR/LR, sulphite LR, Zinc.
Checkit Comparator Components
Comparator unit, 10ml plastic cells, crushing rod, disks and comparator Instructions.
Guide
| Step 1 Take the comparator unit and with it facing you insert the appropriate disk. Make sure the disk is inserted with its parameter name facing you. |
 |
|
| Step 2 Only use the plastic 10ml cells with the hazy side facing you. The Checkit comparator range is designed for use with the hazy side facing forwards. Important - Do not use other cell types, using other types will affect the accuracy of the test. |
 |
|
| Step 3 Remove caps and fill both cells to the 10ml mark with the sample to be tested. Cap one cell only, this is to be used as the BLANK. |
 |
|
| Step 4 Place the capped cell (the BLANK) in to the left side of the comparator. Ensure the cell is placed in the comparator with the hazy side towards you. |
 |
|
| Step 5 Take the other uncapped cell containing the SAMPLE and add the test reagents as instructed (see Kit Instructions). |
 |
|
| Step 6 After adding the reagents to the SAMPLE cell, replace the cell cap. Now place the SAMPLE cell in to the right side of the comparator. |
 |
|
| Step 7 Follow the Kit Instructions and time the addition of the reagent as required. When ready, hold the comparator towards a light source. |
 |
|
| Step 8 To obtain the result - whilst holding towards the light source rotate the comparator wheel until you obtain a colour match, then read the result in ppm in the bottom right of the comparator. |
 |
|
Step 9 Record the result then rinse cells thoroughly with clean water, store discs and cells safely in plastic bags. |
|
Top Tips for Best Results
Prolong disk life - keep discs in plastic bags to avoid scratching and to keep dry.
Only use plastic 10ml cells that have clear and hazy sides, using other cells will affect the result!
Always use cells with the hazy side facing towards you when placed in comparator.
Always use lids when mixing, and rinse thoroughly with clean water to avoid contamination.
|
Technical Support & Training We offer technical support, practical workshops and training services. If you require assistance on test methods or kit selection, analysis procedures, or would like to book a workshop training session please call us on 01604 68 69 95 or email support@droptestkits.com. Previous Newsletters and Unsubscribe If you'd like to receive copies of previous newsletters or wish to unsubscribe from this newsletter please e-mail us at info@droptestkits.com. Contact Us
|
©2008 DropTestKits.com