API 620 6th Ed. 1977, need historical to evaluate LNG tank

[Marty Thompson]

Please check your company files, I have a tank built to 1977 API 620. I first need to inspect it to the code it was built to.
Techstreet only has the 1970 version. I need to see the 1977 version.

[marian_g]

Techstreet only has the 1970 version. I need to see the 1977 version.

I think there is no '77 edn, but 78 one.
See

[link Point to another website Only the registered members can access] I'm afraid it is not the answer you are looking for; at least it is the info it's available in IHS store.

Best regards.

[Marty Thompson]

Thank you for your link.

The edition that I seek is listed at the Library of Congress, Copyright Office, Catalog of Copyright Entries. Third Series, 1977: July-December as:
Recommended rules for design and construction of large, welded, low- pressure storage tanks. API standard 620, July 15, 1977 6th ed. Sheets 0 American Petroleum Institute; 24Jul77; A883188.

If there is a 1978, that will help also. the 9th edition is 1996, Techstreet only shows 1956, 1963, 1966, 1970 and then 1996.

The API Catalog historical page lists 1st ed as 1956, 10th ed as 2002

The IHS page on your link appears to be 6th edition with Rev2 for 1978.
My drawings for the tank in question state that it is built to 6th Ed. 1977, I do not know what was changed in the Rev.2

If anyone has the 1978, at least it will be closer than any of the newer issues that I have.