4 years ago when we were gearing up and buying PST HP cylinders they were already in trouble and this was a hot topic then.
The wisdom that surfaced was that anyone can submit the application to renew. Providing there are no disturbing reports on file relating to the permitted cylinders it's pretty much an automatic renewal. The engineering for the product has long since been completed and none is required for renewal.
I forget who this came from but It was as I recall a respected source. Hopefully somebody truly on top of this procedure can stop by to confirm / update on the matter.
Pete
The wisdom that surfaced was that anyone can submit the application to renew. Providing there are no disturbing reports on file relating to the permitted cylinders it's pretty much an automatic renewal. The engineering for the product has long since been completed and none is required for renewal.
I forget who this came from but It was as I recall a respected source. Hopefully somebody truly on top of this procedure can stop by to confirm / update on the matter.
Pete