National Testing Laboratories NTL-9001 WaterCheck Laboratory Test Kit Instructions
- June 4, 2024
- National Testing Laboratories
Table of Contents
WATER CHECK AND
WATER CHECK WITH PESTICIDES
SAMPLING INSTRUCTIONS
Please read all of the instructions before starting.
Freeze the blue ice pack. After the blue ice pack has been in your freezer for
at least 8 hours, you can collect your water sample from an appropriate water
faucet or spigot. If the spout has a strainer or aerator, remove it prior to
sampling. Samples must be shipped the same day they are collected via
guaranteed next-day delivery and must be collected after 1:00 p.m. EST to
minimize the time in transit. Do not collect and/ or ship your samples on a
Friday, Saturday, Sunday, or the day before a National Holiday.
Fill all of the bottles, in order from 1 to 5 as shown in the picture to the
right.
Bottle I ; Fill the 500 mL plastic bottle to the shoulder and replace the cap
securely.
Bottle 2; Fill the 125 mL square glass bottle to the shoulder and replace the
cap securely. 
Bottles 3&4; Fill each of the two 40 mL glass vials in such a way that a “dome” of water stands above the rim [see picture]. This can be done easily if you reduce the water flow o a slow stream. Replace the cap securely, but do not over-tighten. Tip the vial upside down and check for air bubbles. If you see an air bubble, remove the cap and slowly add more water to displace the air bubble. Recap the vial and check again for air bubbles. Repeat this step until you do not see any air bubbles.
Bottle 5; Before filling this bottle, disinfect the end and inside of the faucet spout using rubbing alcohol. After the faucet spout has been disinfected, flush it by running the after or at least one minute. Remove the red tabbed plastic seal on the 125 mL plastic bottle. Do not touch the inside of the bottle or the inside of the cap. This bottle contains preservatives. Do not rinse the preservative out of the bottle. Fill the bottle between the 100 mL and 120 mL fill lines. Do not fill any less or more as this will impact the analysis. [see picture]. Replace the cap securely making sure not to touch the inside of the bottle or the inside of the cap.
Complete the enclosed lab form, making sure to indicate the collection date
and time you sampled, type of water, and sample identification (e.g. kitchen
sink, wellhead, etc.) Return the blue ice pack to the kit and place the kit
back in the cardboard box with the completed lab form.
*See reverse side for step 5
Qw.tlity Water Analysis:
800-458-3330
www.ntllabs.com/ www.watercheck.com
References
- Watercheck - NTL - Residential & Commercial Water Testing
- Watercheck - NTL - Residential & Commercial Water Testing