This industry does have some items that are subject to "interpretation"....one manufacturer says one thing...another may say something totally different
The IPEMA group pulls this all together - CONSISTENCY AND ACCURACY IS THEIR GOAL
What can you do?
Log on to the IPEMA web site
You can search for a particular manufacturer...and by inserting the product Model Number, you can get an actual certificate (see sample below)
Caution: Many times you may need to contact the manufacturer - if you are off a digit - a space - a simple typo can come up negative - so if you can't get verification CONTACT THE MANUFACTURER FOR ASSISTANCE - don't panic.