Commercial standards for warm air furnaces equipped with vaporizing pot-type oil burners
- Publisher
- Elsevier Science
- Year
- 1943
- Tongue
- English
- Weight
- 52 KB
- Volume
- 235
- Category
- Article
- ISSN
- 0016-0032
No coin nor oath required. For personal study only.
✦ Synopsis
The revised standard is somewhat wider in scope than the previous editions of the two standards which it consolidates. It provides the essential specifications, definitions, symbols, and dimensional data on the predominating sizes and classes of fit of American National Screw Threads in the six following series: Coarse, fine, extra fine, 8-pitch, I2-pitch, and I6-pitch. Corresponding to these are six tables of stock tap drill-sizes, with dimensional data on diameters and depths of threads.
For the protection and guidance of the purchaser, the publication includes a recommended uniform wording of a statement to be incorporated in labels, invoices, catalogs, etc., guaranteeing that screw threads of the respective classes of fit conform to the standard.
The standard became effective for new production on February IO, 1943. Copies are available from the Superintendent of Documents, Government Printing Office, Washington, D. C., at IO cents each.