What is the lowest reading allowed before a bat is thrown out at a tournament??

140 and above is passing.

I have a old bat and read it could possibly fail because the trampoline effect could happen. Are we able to have tournament test them before ever used to be safe.

Good luck with that. Testers are expensive and Aside from mine I didn't see a tester at a tourney the entire year except Vegas.. It should be mandatory that if SSUSA is implementing these rules that could potentially lead to your bat being taken that SSUSA should make sure every tourney has one on site and allow testing before hand. Or make sure a tester is on hand at every tourney and make bat testing mandatory prior to being allowed to play. Bats should be tested and stickered at every tourney if they are going to have these rules. They want to police bats(which I'm all for by the way) like the young guys do then do it. Test and sticker bats ahead of time, takes all the guess work out of who is and isn't swinging legal and nobody gets suspended. If the bat fails it must be put in their car.

If U sticker the bats, SSUSA might want to develop an official sticker that falls apart if it is removed. There will be a few idiots who will carry a variety of stickers in a way to cheat.
Joliet Il has a big tourney. All bats are tested. If one fails, it is put in a barrel and is put in the concession stand. Player gets bat back when team is eliminated.

Back in my USSSA days, Waukegan had a big time tourney. They would ck the bats and spray paint the knob with a color. Players would ck the color, go out to their car and open the trunk to a case of various colors. Spay paint their illegal bat and play.

If you let the players police the cheating you'd only have to use the testers once then just have them available if needed. SSUSA wouldn't ever have to collect or send a bat for inspection and the game would be cleaned up by the second tournament

I read that the 140 refers to pounds of compression. I've also seen other articles where they had numbers in the 1500's. What units are we dealing with and why the difference?

Vito B. ... JohnO28 is correct: 140 and above is passing for the SSUSA testing threshold ... 1,500 is irrelevant for us, but may mean something in another association ... Good luck ...

Those higher compression #s are used for USSSA n the old ASA testers. Aloha, Fabe

Thanks, Fabe, I figured that might be the case but what unit is the 1500 refering to? I know it can't be pounds since that would be 10 times what the testers indicate for senior bats. Since all the testers seem to be build on the same principal, I am curious. I'm a retired engineer and it's cold and nasty outside and I'm a bit bored.

The compression testers do the same thing with two different gauges. ASA and USSSA will never use the same specs. So 140 is in pounds, the ASA gauge measures in pressure. There is a simple math formula that will convert it

tattoball, I get that. I'm trying to figure out if it's psi, grams/cm squared, etc. The 140 is in pounds, which is a measure of force without saying if it is a point force or measured over an area.

I will also keep saying this 140 is too low in my opinion should be 160 or higher. JMO!

After spending a lot of time reading about this subject I'm now convinced that measuring compression of a bat is pretty lame way to rule out 'illegal' bats. The field testers are not laboratory instruments that have the technology or reliability to be consistent.

ASTM Standard F-1890, which is what the industry uses to test and rate bats, doesn't use "compression" for rating bat performance because it is unreliable as a measure of bat performance.

Here is a great article discussing compression.

https://www.batdigest.com/blog/bat-compression-test-results/