Orthophosphate Test Kits

Orthophosphate Test Kits for testing residual of Orthophosphate in boiler chemicals.

For cooling tower chemical testing, use TK9960-Z: 0 or 10 ppm as PO4.

TK9930-Z Directions:
1) Rinse and fill three times to 5 mL.
2) Add Mo Reagent (MO1460) to the 15 mL marker.
3) Add 2 scoops of SC7555 .
4) Place tube in the comparator.

This product ships within 24 to 48 hours from southern Pennsylvania.

For rush orders, we must receive the order by 10am EST.

• This product only ships via UPS. We can not ship Fedex or USPS.
• We can ship internationally.
• We can not ship this product to a PO box.
• If the product is Hazmat. It can not can not airship.

You will receive the tracking information after the order ships in 48 to 72 hours.

For expedited orders:

1. Order your product before 10am EST.
2. Order online and insert a note during checkout with specific expedited instruction (Red over night, etc).
3. If you have an UPS account number, enter it in the notes section upon ordering.
4. If you do NOT have a UPS account number, we will contact you with the additional costs. Provide your 3 or 4 digit security code in the note section upon check out to speed the process.
5. Email is the fastest way to communicate with us. We will contact you ASAP. Email us at [email protected].

We are fast at responding!


If you can not order online, call in your order at 800-658-7716 with specific directions.