Availability/Distribution: Worldwide

Detects aflatoxin M1 (AFM1) at or below the U.S. FDA-established action level.

  • AFM1 is a potent carcinogen that can enter the milk supply if cows consume contaminated feed.
  • Ensure milk quality and safety.



For information or to order:

Call IDEXX Technical Services, 1-800-321-0207.

Product Information

Part Number:
99-24964 (20 tests)

Related Products

Sensitivity Table
DrugFDA Safe LevelEuropean MRLDetection Level
Aflatoxin M10.5 ppb0.05 ppbAt or below 0.5 ppb

Questions and Answers about SNAP tests 


Note: The following questions do not apply to SNAP ST tests.


How do I use SNAP tests?


How long does it take to run a SNAP test?

SNAP tests take less than 10 minutes to run.


How should I store my SNAP tests?

Please refer to your package insert for test-specific storage requirements. Refrigerate SNAP NBL Tests at 0–7°C (32–45°F). Refrigerate all other non-ST tests at 2–8°C (36–46°F).  Tests can be kept at room temperature, 18–29°C (64–84°F), during the day of use. Remove only the number of tests to be used for the day.


Do SNAP tests need to be brought to room temperature before testing?

No, you do not need to warm the tests prior to use; you can run the SNAP tests directly out of the refrigerator. Do not open the foil pouch until you're ready to run the test.

Before you test:

  1. Verify that the SNAP device has colored spots in the results window and activation circle.
  2. Make sure the pellet is moving freely in the bottom of the sample tube.
  3. Be sure your heater block has been preheated to a temperature within the 45°C ±5°C range.


What is the proper heater block temperature?

SNAP tests must be run at 45°C ±5°C (104–122°F). The SNAP portable heater blocks have internal thermostats optimized within the range of 40–50°C. Allow 10–15 minutes for the portable heater to reach operating temperature. If you do not see any color in the block’s temperature strip, do not attempt to run the test. Contact IDEXX Technical Services if you have any questions about heater performance. Call 1-800-321-0207 or 1-207-556-4496, Monday–Friday, 8:00 a.m. to 5:00 p.m. ET; fax 1-207-556-4630; or send an email.


Does the SNAP test need to remain on the heater block throughout the entire test?

Yes, the SNAP test must remain on the heater block at 45°C ±5°C for the duration of the test—during the incubation time, the activation time and the color-development time.


How critical is the activation time of the SNAP test?

Activation time is critical. After the initial incubation, pour the entire contents of the sample tube into the sample well of the SNAP device. Remain with the device and watch the sample flow across the results window toward the blue activation circle. When the blue activation circle begins to disappear, press the activator firmly until the device "snaps" and the activator is flush with the body of the SNAP device. Always activate (snap) the device when the edge of the circle nearest the sample begins to turn from dark blue to white. Do not let the circle completely disappear.


SNAP technical tip—When to "SNAP"

SNAP test protocols


Can I test more than one sample at a time?

The number of SNAP tests you can run at one time depends on the type of heater block you have. With the preset portable models that IDEXX offers, you can accommodate two SNAP devices at one time.

If you're running multiple samples, set up all samples and SNAP devices on the heater, then set a timer for the incubation period. After incubation, individually pour the samples onto the sample well of each device. Watch the devices carefully as each sample may flow at a different rate. Activate each device as the individual activation circles begin to disappear. Snap the devices completely, and set a timer for the appropriate color-development time (it varies by test) after the last device has been activated. When the time period is complete, you can read the results.


Does IDEXX have a reader approved for NCIMS testing for SNAP tests?

Yes, the SNAPshot® DSR Reader is approved and available from IDEXX.


How can I get additional support/information?

We have answered the most frequently asked questions here to help you get started. When you receive your order, you will also receive detailed printed instructions that fully outline how to use your SNAP heater block and your SNAP tests. Anytime you have questions, you can call IDEXX Technical Services, 1-800-321-0207 or 1-207-556-4496, Monday–Friday, 8:00 a.m. to 5:00 p.m. ET; fax 1-207-556-4630; or send an email.



Questions and Answers about Ordering and Shipping


How can I order from IDEXX?

You can place your order with our Customer Service department by calling 1-800-321-0207 or 1-207-556-4496 or 00800-727-43399 (Monday through Friday, 8:00 a.m. to 6:00 p.m. ET). Orders can also be faxed to 207-556-4630, or sent via email to


How long will it take to receive my order?

Please contact your local IDEXX customer service for any order.


What if I need to change or cancel an order or have other questions?

In most cases, we process orders the same day we receive them. To ensure we receive any changes as soon as possible, please call one of our customer service representatives at 1-800-321-0207 or 1-207-556-4496 or 00800-727-43399(Monday through Friday, 8:00 a.m. to 6:00 p.m. ET). You can also send a fax to IDEXX at 1-207-556-4630.

Still have questions?

IDEXX backs all tests with a dedicated team of professionals available to answer your product, regulatory and dairy-industry questions. Call IDEXX Technical Services at 1-800-321-0207 or 1-207-556-4496 or 00800-727-43399, Monday through Friday, 8:00 a.m. to 5:00p.m. ET; or complete the contact form.