It can stand for record serial number which were serial numbers placed on vinyl records.
It is probably the serial number identifying that specific weapon.
Serial numbers on any bills are counters and a security feature. A specific serial number doesn't stand for anything except the order in which a particular bill was printed as part of a print run.
Maybe: Wrought Austenitic Stainless Steel Piping Fittings
2 and 4 are grades (chemistry) according to ASTM A487 N and Q likely stand for normalized and quench/temper, but not 100%.
ASTM D75 is the ASTM that covers the sampling of aggregates.
The duration of Custer's Last Stand - serial - is 5.47 hours.
no
The ASTM equivalent of DIN 1543 is ASTM A572. Both of these materials are a type of carbon steel.
ASTM B187 and ASTM B152 copper are very similar in structure. The main difference is that ASTM B187 copper is temper H04 and is hard, and ASTM B152 copper is cold rolled and hot rolled.
By downloading serial numbers I assume you mean a list of years and serial numbers? And for the record, only John Deere dealers have this capability to ensure that serial numbers are not forged or altered.
The serial numbers on the back of a watch are there for the customer to know that the watch is real. The serial numbers can be looked up at the retailers.