AS ISO 7131:2021 Earth-moving machinery — Loaders — Terminology and commercial specifications.
compact loader
loader (3.1.1) having an operating mass (3.2.1) of 4 500 kg or less, designed to work in confined spaces with the associated need for greater manoeuvrability
Note ito entry: The general term compact machine is defined in ISO 6165.
skid steer loader
loader (3.1.1) which normally has an operator station between attachment-supporting structures and which is steered by using variation of speed, and/or direction of rotation between traction drives on the opposite sides of a machine having fixed axles on wheels or tracks
[SOURCE: 150 6165:2006, definition 4.2.21
base machine
machine with a cab or canopy and operator-protective structures ii required, without equipment or attachments but possessing the necessary mountings for such equipment and attachments
[SOURCE: ISO 6746-1:2003, definition 3.3]
Note I to entry: The machine will need to he provided with the necessary mountings to secure equipment and attachments (see Clause 5).
3.2 Masses
operating mass
mass of the base machine (3,1.2), with equipment and empty attachment (3.3.1) in the most usual configuration as specified by the manufacturer, and with the operator (75 kg), full fuel tank and all fluid systems (i.e. hydraulic oil, transmission oil, engine oil, engine coolant) at the levels specified by the manufacturer and, when applicable, with sprinkler water tank(s) half full
Note ito entry: The mass of an operator is not included for non-riding machines.
Note 2 to entry: Ballast mass at delivery can be included if specified by the manufacturer. [SOURCE: ISO 6016:2008, definition 3.2.1]
shipping mass
mass of the base machine without an operator, and with fuel level at 10 % of tank capacity or with the minimum fuel level needed for machine shipping purposes as specified by the manufacturer, whichever is higher, with all fluid systems at the levels specified by the manufacturer, and with empty sprinkler tank(s, if required, and with or without equipment, ballast, attachment, cab, canopy, operator- protective structures, wheels and counterweights as stated by the manufacturer
Note 1 to entry: If the manufacturer intends that the machine be partially disassembled for shipping purposes, the masses of the disassembled items will also be stated
[SOURCE: ISO 6016:2008, definition 3.2.6]AS ISO 7131 pdf download.