: It sets out the recommended procedures for the site pressure testing of pipework systems in buildings.

Always verify the exact thread type (metric/imperial) and spigot diameter with your current equipment, as BESA produces variations for different regional standards. For safety-critical rigging, consult the official TR6 load rating and inspect the unit before each use.

This was the gun's standout feature. Early British tanks were notorious for mechanical breakdowns, but the Besa gun almost always worked. The gas-operation system was robust, and the quick-change barrel mechanism allowed crews to swap out overheated barrels in seconds—a critical feature during sustained engagements in the hot North African climate.

: Originally published in 1980, it has been updated several times to stay current with modern building regulations. Other Notable "TR6" Variations

The heart of many Besa/Tribsa builds is the . Specification Engine Type Air-cooled, OHV Parallel Twin Displacement Power Output Approx. 42–47 bhp Compression Ratio 8.5:1 (typical) Carburetion Single Amal carburetor (TR6) BESA TR/6: The Industry Standard

The gun was chambered in the standard British .303 British rimmed cartridge. While this necessitated a slightly more complex feed mechanism compared to rimless cartridges, it simplified logistics, as tankers could share ammunition with the standard infantry Lee-Enfield rifles and Vickers guns.