Q&A Series: What are the Retest Requirements for Arc Flash PPE?
Q: What are the retest requirements for arc flash PPE?A: This is a question we get a lot, and we hear it from both manufacturers and end users. Read on to…
Choosing a Third-Party Testing Laboratory
There are many laboratories to choose from when testing FR and AR clothing and components. Which laboratory will work best for you? Well, that depends. Below we’ve provided a short…
ATPV vs. EBT: Arc Ratings Explained
ASTM Standard Definitions:ATPV (Arc Thermal Performance Value) is the incident energy on a material that results in a 50% probability that sufficient heat transfer through the specimen is predicted to cause…
Arc Rated (AR) vs Flame Resistant (FR): Understanding the Difference
Similar but different – How do you tell the difference Between Arc Rated (AR), Flash Fire Rated (FFR), and Flame Resistant (FR)? In 2012, NFPA 70E changed the terminology referencing…
When Product Tests Fail: Tips from a Laboratory
Failures are a common, almost inevitable experience in product development. While it’s always disappointing, read on to learn three tips from a testing lab on how to mitigate risk and ease the…
Modacrylic Fiber: Protex M vs. Protex C.
We frequently get questions about different fibers for arc protection. This is to answer a common question on testing in ASTM F1959 to meet ASTM F1506 or ASTM F1891.Protex M fiber contains approximately 2x…