Manufacturer's Lot : An identifiable series of products that can be the same as or a subset of a production lot; used by the manufacturer for quality control or identification purposes
NFPA 1983 Standard on Fire Service Life Safety Rope and System Components, 2001 ed. http://www.nfpa.org/assets/files/AboutTheCodes/198 3/1983-F2005-ROP.pdf, (Std: Fr Srvc Life Sfty Rope and Sys Components - Amer) {434 NFC}