The level of accuracy depends on the application. Generally Â±0.5 to 1C accuracy is sufficient in the food industry whereas the pharmaceutical industry may require Â±0.2 to 0.5C accuracy or better. It is important to note the scale used in comparisons though Â±0.2C accuracy is not the same as Â±0.2F accuracy.
All vehicles towing trailers must have chains on one drive axle. Trailers with brakes must have chains on at least one axle. Requirement 2 (R-2): Chains are required on all vehicles except four-wheel-drive vehicles under 6,500 pounds gross weight and equipped with snow tires on all four wheels. Chains for one set of drive wheels must be carried by four wheel-drive vehicles using snow tires. Requirement 3 (R-3): Chains are required on all vehicles without exception. R-1 and R-2 are the most common conditions.
The geometry on Specializedâs racing-oriented aluminum machine is even edgier than the Tarmacâs, too. The reach dimension on the Allez DSW SL is up to 11mm shorter, depending on size, and the stack is about 10mm lower. And while the Tarmacâs bottom-bracket drop and chainstay length vary slightly with frame size, Specialized pegs those dimensions on the Allez DSW SL at 69mm and 405mm, respectively.