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Welcome to the Bios International Challenge

Bios International is a specialty manufacturer of precision flow calibration equipment. Bios is accredited to approximately 0.06% by NVLAP (NIST) to ISO 17025, ANSI Z-540 and NIST 150. You know your business. How well do you know ours?


Entries are automatically entered into a drawing to win a Defender or a Definer! The winner may choose a Defender 510, a Defender 520 or a Definer 220.


1. Your DryCal is a
2. Which of the followings measure volumetric flow only?
3. Which of the following device calibration may need to use the 'Sensor Factor' option?
4. What is the accuracy of Defender 510 and 520?
5. All Bios flow calibrators are:
6. The Bios Defender 510 allows you to:
7. The Bios Defender 520 allows you to:
8. Bios Optimizer Collect software enables you to:
9. Regular service and recalibration of your Bios device:
10. The Bios laboratory in Butler, N.J., has been accredited to demanding standards of accuracy and quality by:
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Which Defender product better suits your needs?*
Which Definer product better suit your needs?*



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The Bios Challenge