Standard: API 1535


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(1) Purchasers are, in some instances, interested in having specifications to use as checks or uniformity of deliveries, and there is a practical way to do this if it is worth the expense; viz.-the simple physical specifications used by the supplier himself as manufacturing controls;

(2) Purchasers are interested in a purchasing practice that assures the best performance in service;

(3) Laboratory test methods now available are not, of themselves and without performance tests, a reliable guide to performance in service;

(4) With rare exceptions, purchasers are net in a position to conduct or interpret the eleborate engine or gear tests required for even the preliminary evaluation of oil performance characteristics;

(5) The practice that has proved most successful is the purchase by brands warranted by the supplier to meet the purchaser's established standards of performance in terms of the lubricant's.

Organization: American Petroleum Institute
Document Number: api 1535
Publish Date: 1959-01-01
Page Count: 5
Change Type: REPR
Available Languages: EN
DOD Adopted: NO
ANSI Approved: NO
Most Recent Revision: YES
Current Version: NO
Status: Inactive