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The old method was made up of the 1-letter arsenal code (usually preceded by AMF), the lot number and 2-digit year of production, and the day and month of manufacture. (example: AMF K p3/43 2-3 is Amf Karlsborg - Lot #003 - 1943 - 2nd of March). The new method is made up of the 1-letter arsenal or 3-digit contractor code, 2-digit manufacturing ...
In reduced bore (sometimes reduced port) ball valves, flow through the valve is one pipe size smaller than the valve's pipe size resulting in the flow area being smaller than the pipe. As the flow discharge remains constant and is equal to the area of flow (A) times velocity (V), A 1 V 1 = A 2 V 2 {\displaystyle A_{1}V_{1}=A_{2}V_{2}} the ...
The pipe contents must be identified adjacent to the banding. [2] This can be done by giving either: The full name; Abbreviation; Chemical symbol; Refrigerant number; Coloured bands (user specified) The direction of flow should also be identified near the banding. [2] Examples using this system are as shown. Examples of pipe marking using BS 7010
Album matrix numbers are often similar to the catalogue number. For example, a record numbered X-1234 may have a matrix number like A–1234 or X–1234–A on side one, and B–1234 or X–1234–B on side two, as shown on the label. In the run-out area, the latter number could be expressed as X–1234–B7, where 7 is the cut number.
The FIPS standard includes both the codes for independent countries (similar but often incompatible with the ISO 3166-1 alpha-2 standard) and the codes for top-level subdivision of the countries (similar to but usually incompatible with the ISO 3166-2 standard). The ISO 3166 codes are used by the United Nations and for Internet top-level ...
Other letters were allocated for integrated circuits. Heater letters A, B, C, F, K, V and Y ceased to be allocated for electron tube devices. Most existing European valve type number allocations were compatible with the new system, but sometimes ambiguities could only be resolved by checking the digits in the name.
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