FAQ
Please see the below frequently asked questions. If you have a question not addressed here, please Contact Us and we will respond as soon as we are able. Thank you for your interest in our lead-free x-ray visible products!
General
Do you offer custom products?
Yes! We can create custom scales and digital references for your applications that can be NIST certified to your tolerances. Send us your specifications and we will be happy to work with you. Contact us using our Contact Us form or email us at info@miltouch.com. We look forward to working with you.
Do you accept Purchase Orders?
Yes! Purchase Orders (PO) are accepted, but please note if your purchase is for less than $1000, payment is required up front. The terms are Pre-Pay. Please send your PO to info@miltouch.com and we will get back with you as soon as we are able.
How to clean MilTouch Solutions radiopaque rulers?
MilTouch Solutions recommends cleaning radiopaque acrylic rulers with soap and water. Do not use harsh chemicals. Do not autoclave or steam clean.
My acrylic ruler is scratched. Will this affect the functionality of the product?
Superficial scratches on the acrylic will not affect the functionality of the ruler when viewed under x-ray. Our rulers may have minor scratches due to the materials we use and manufacturing process. We do our very best to limit these. If your ruler has visible scratches from use, these scratches can be buffed out using a commercial acrylic scratch removal product.
NIST
What is a NIST Certification?
The National Institute of Standards and Technology (NIST) is a non-regulatory U.S. government agency that develops technology, metrics, and standards.
What is a NIST Certified Radiopaque Ruler?
NIST certified radiopaque rulers are inspected, calibrated and traceable to master standards at the National Institute of Standards and Technology (NIST), Washington, DC. USA. Each ruler is given a unique serial number and a calibration certificate for traceability.
How often should your NIST Traceable rulers be recalibrated?
The answer is, it depends. NIST does not require a specific expiration date/period for NIST Traceable Calibration Certifications. If an expiration date is not stated on a certificate, it is generally considered valid within the certificate's stated measurement uncertainty/tolerance.
The specific frequency of recalibration is based on the ruler's usage, the criticality of the measurements, and the potential for drift. It is ultimately dependent on your company/customer’s requirements.
If your organization requires traceability of recalibration, we recommend recalibration every three years. Normal use of a ruler or gauge will not change the accuracy. A ruler or gauge has no moving parts and cannot go out of adjustment or be calibrated as in the case of micrometers, vernier calipers, etc.. Normal temperature changes encountered in the workplace are reversible, that is with an increase in temperature a ruler or gauge will expand (as will the item being measured), on return to the original temperature the ruler or gauge will also return to the beginning dimensions. Certified rulers should be checked regularly for damage and be recertified immediately upon the discovery of damage.
Whatever you decide to choose as a period of time for the recalibration, please be sure to document the procedures that you are to follow in your quality manual or standard operating procedures.
Glowboard
How dark does the room need to be in order to see the phosphor glow?
The Glowboard fluoresces green when it is being irradiated. The darker the room the better. The more light in the space, the less you will be able to see the responsive phosphorescent area. You will have to experiment with your specific application and environment. See typical use and setup images on product page for examples.
Tax-Exempt
If you are a tax exempt customer, such as a government entity, nonprofit, school or reseller, please send a copy of your Sales Tax Exemption/Resale Certificate to us at info@miltouch.com in addition to an itemized list of what you would like to purchase. Upon receipt of this information we will send you a link so that you can submit your purchase without having to pay sales-tax. Thank you for your business!