"Industry-standard" measurements and advertising

[Stormin Mormon]

I'd be curious where in the US Constitution, does it delegate the power to regulate propane tanks to any government agency?

[Harry K]

There is also nothing in the Constitution about speed limits, driver's lic and a multitude of other things that must be regulated

Bureau of weights and standards ( or similar terms) in each state does it as well as national agencies promulgating standards...or would you rather leave it open to any Tom, Dick and Harry to say what the size/weight/capacity is of something he is selling?

Harry K

[Harry K]

I wonder what the regs are on Log Splitters. multiplying Pi R squared by the rated pump output comes up considerably less than the claimed tonnage on the one I have checked. And that is without deducting the area of the piston rod.

[Stormin Mormon]

Might sort itself out. We did that for years.

PS, please leave some quoted text.

[rbowman]

The rod end doesn't matter unless there is some back pressure in the return line. Then you'd need to deduct that pressure acting on the annulus.

I don't know anything about log splitters other than those that resemble an ax but I wonder if it's some sort of marketing concept like 'tons per square inch exerted by the face of the wedge'.

[Harry K]

The rod end does matter. Given a 5" piston with a 1 1/2" rod you loose the pressure on the area covered by the rod.

Harry K

[Harry K]

Ooops, Head up in a dark, dark place. I got the cylinder backwards and yes, the rod end does not matter.

[Ashton Crusher]

So my 6 foot step ladder is now called a 10 foot ladder????