ISO/TC 110/SC 2/WG 11 - Stability

This document specifies an additional test for verifying the stability of a laden truck fitted with a powered load-handling device, such as a sideshift, which can displace the centre of gravity laterally to a substantial, predetermined extent from the longitudinal centre plane of the truck or from the centred position. Such devices are used in this mode for depositing and retrieving a load. A displacement is considered to be a substantial displacement if it is more than: — 100 mm, for a truck with a rated capacity — 150 mm, for a truck with a rated capacity ≥ 5 000 kg and ≤ 10 000 kg; — 250 mm, for a truck with a rated capacity > 10 000 kg and — 350 mm, for a truck with a rated capacity ≥ 20 000 kg; This document is applicable to the following types of trucks as defined in ISO 5053-1: a) counterbalance trucks; b) reach and straddle trucks; c) pallet stackers; d) bidirectional and multidirectional trucks; e) industrial variable-reach trucks; f) rough-terrain trucks with mast; g) rough-terrain variable reach trucks; h) counterbalance trucks with articulated steering; i) variable-reach container handler; j) counterbalanced container handler.

This document specifies an additional test for verifying the stability of a laden truck whose utilization creates the special operating condition whereby the load centre of gravity is substantially offset from the truck's longitudinal centre plane or from the centred position by design. A load is considered to be substantially offset if displaced by more than: — 100 mm, for a truck with a rated capacity — 150 mm, for a truck with a rated capacity ≥ 5 000 kg and ≤ 10 000 kg; — 250 mm, for a truck with a rated capacity > 10 000 kg and — 350 mm, for a truck with a rated capacity ≥ 20 000 kg. This document is applicable to the following types of trucks as defined in ISO 5053-1: a) counterbalance trucks; b) reach and straddle trucks; c) pallet stackers; d) bidirectional and multidirectional trucks; e) industrial variable-reach trucks; f) rough-terrain trucks with mast; g) rough-terrain variable reach trucks; h) counterbalance trucks with articulated steering; i) variable-reach container handler; j) counterbalanced container handler; k) order-picking truck; l) slewing rough-terrain variable-reach truck.

This document specifies the tests for verifying the stability of reach trucks (with retractable mast or fork arm carriage) and straddle trucks, equipped with tilting or non-tilting masts or fork arms and having a rated capacity up to and including 5 000 kg. It is also applicable to such trucks operating under the same conditions when equipped with load-handling attachments.

This document specifies the tests to verify the stability of single-side-loading trucks with tiltable or non-tiltable mast or fork arms. It is applicable to trucks fitted with fork arms and/or attachments.

This document specifies the tests for verifying the stability of counterbalanced fork-lift trucks with articulating steering and with mast, equipped with fork arms or load-handling attachments. It is not applicable to trucks with retractable devices such as a retractable mast or fork.

This document specifies the tests for verifying the stability of towing tractors, burden and personnel carriers as defined in ISO 5053-1.

This document specifies the tests for verifying the stability of order picking trucks with an elevating operator position, as defined in ISO 5053‑1, where the operator's position can be raised to an elevation above 1 200 mm. It is applicable to industrial trucks fitted with fork arms, platforms and/or integrated attachments under normal operating conditions. It is not applicable to trucks fitted with a load carrier that can be shifted laterally or pivoted out of the truck's longitudinal centre plane.

This part of ISO 22915 specifies tests for verifying the stability of — pallet stackers, — double stackers, and — order-picking trucks with an operator position elevating up to and including 1 200 mm lift height, measured from the ground to the floor of the platform. It is applicable to these types of industrial truck, whether with tilting or non tilting masts or fork arms, having a rated capacity up to and including 5 000 kg. It is also applicable to such trucks operating under the same conditions when equipped with load-handling attachments and to order-picking trucks with an elevating operator's position up to and including 1 200 mm lift height when equipped with an additional load lifting device(s).

The ISO 22915 series deals with the safety of industrial trucks, as defined in ISO 5053-1, relative to their stability and the verification of that stability. For the purposes of the ISO 22915 series, industrial trucks are wheeled, self‑propelled or pedestrian‑propelled vehicles, excepting those running on rails. They are either operator‑controlled or driverless and designed to carry, tow, push, lift, stack or tier in racks. This document specifies an additional test for verifying the stability of a truck stacking with mast tilted forward and load in the elevated position. It is applicable to the following types of truck: a) counterbalanced trucks with tiltable masts, as specified in ISO 22915?2; b) reach (retractable mast or forks) and straddle trucks with tiltable masts, as specified in ISO 22915?3; c) pallet stackers with tiltable masts, as specified in ISO 22915-4; d) bidirectional and multidirectional (retractable mast or forks) trucks with tiltable masts, as specified in ISO 22915?7; e) rough-terrain trucks with tiltable masts, as specified in ISO 22915-13; f) counterbalanced trucks fitted with articulated steering with tiltable masts, as specified in ISO 22915-15.

This document specifies the tests for verifying the stability of counterbalanced trucks with masts, equipped with fork arms or with load handling attachments. It is not applicable to those trucks designed for handling freight containers, dealt with by ISO 22915-9.

ISO 22915-1:2016 series deals with the safety of industrial trucks, as defined in ISO 5053‑1, relative to their stability and the verification of that stability. For the purposes of ISO 22915, industrial trucks are wheeled, self-propelled, or pedestrian-propelled vehicles excepting those running on rails. They are either operator-controlled or driverless, and are designed to carry, tow, push, lift, stack or tier in racks. ISO 22915-1:2016 specifies basic test criteria and requirements for verifying the stability of industrial trucks, hereafter referred to as trucks. It applies to the following truck types and special conditions: a) counterbalanced trucks with mast as specified in ISO 22915‑2; b) reach and straddle trucks as specified in ISO 22915‑3; c) pallet stackers, double stackers, and order-picking trucks with operator position elevating up to and including 1 200 mm lift height as specified in ISO 22915‑4; d) single-side-loading trucks as specified in ISO 22915‑5; e) bidirectional and multidirectional trucks as specified in ISO 22915‑7; f) additional stability test for trucks operating in special conditions of stacking with the mast tilted forward as specified in ISO 22915‑8; g) counterbalanced trucks with mast handling freight containers of 6 m (20 ft) length and longer as specified in ISO 22915‑9; h) additional stability test for trucks operating in special conditions with the load substantially laterally displaced by powered devices as specified in ISO 22915‑10; i) industrial variable-reach trucks as specified in ISO 22915‑11; j) industrial variable-reach trucks handling freight containers of 6 m (20 ft) length and longer as specified in ISO 22915‑12; k) rough-terrain variable-reach trucks as specified in ISO 22915‑14; l) counterbalanced trucks with articulated steering as specified in ISO 22915‑15; m) pedestrian-propelled trucks as specified in ISO 22915‑16; n) additional stability test for trucks operating in the special condition of offset load, offset determined by utilization as specified in ISO 22915‑20; o) order-picking trucks with operator position elevating above 1 200 mm as specified in ISO 22915‑21. It also applies to trucks operating under the same conditions when equipped with load-handling attachments. ISO 22915-1:2016 does not apply to the following: - trucks handling suspended loads which may swing freely; - low-lift trucks with lift height up to and including 500 mm.

ISO 22915-3:2014 specifies the tests for verifying the stability of reach trucks (with retractable mast or fork) and straddle trucks, equipped with tilting or non-tilting masts or fork arms and having a rated capacity up to and including 5 000 kg. It is also applicable to such trucks operating under the same conditions when equipped with load-handling attachments.

ISO 22915-4:2009 specifies tests for verifying the stability of pallet stackers, double stackers, and order-picking trucks with an elevating operator position up to and including 1 200 mm lift height. It is applicable to these types of industrial truck, whether with tilting or non‑tilting masts or fork arms, having a rated capacity up to and including 5 000 kg. It is also applicable to such trucks operating under the same conditions when equipped with load-handling attachments and to order-picking trucks with an elevating operator's position up to and including 1 200 mm lift height when equipped with an additional load‑lifting device.

ISO 22915 deals with the safety of industrial trucks, as defined in ISO 5053, relative to their stability and the verification of that stability. For the purposes of ISO 22915, industrial trucks are wheeled, self-propelled or pedestrian-propelled vehicles, excepting those running on rails. They are either operator-controlled or driverless and designed to carry, tow, push, lift, stack or tier in racks. ISO 22915-1:2008 specifies basic test criteria and requirements to verify stability for industrial trucks, referred to simply as trucks. It applies to the following truck types and special conditions: counterbalanced trucks with mast; reach and straddle trucks; pallet stackers, double stackers and order-picking trucks up to and including 1200 mm; single side loading trucks; bidirectional and multidirectional trucks; additional stability test for trucks operating in special conditions of stacking with the mast tilted forward; counterbalanced trucks with mast handling freight containers of 6 m (20 ft) length and longer; additional stability test for trucks operating in special condition with the load substantially laterally displaced by powered devices; industrial variable reach trucks; industrial variable reach trucks handling freight containers of 6 m (20 ft) length and longer; rough terrain variable reach trucks; counterbalanced trucks with articulated steering; pedestrian propelled trucks; burden and personnel carrier; additional stability test for trucks operating in a special condition with offset load, offset determined by utilisation; order-picking trucks with elevating operator position above 1200 mm. ISO 22915-1:2008 does not apply to: trucks handling suspended loads which may swing freely; low lift trucks with lift height up to and including 500 mm.

ISO 22915-3:2008 specifies the tests for verifying the stability of reach trucks (with retractable mast or fork) and straddle trucks, equipped with tilting or non‑tilting masts or fork arms and having a rated capacity up to and including 5 000 kg. It is also applicable to such trucks operating under the same conditions when equipped with load-handling attachments.

ISO 22915-2:2008 specifies the tests for verifying the stability of counterbalanced trucks with masts, equipped with fork arms or with load handling attachments. It is not applicable to those trucks designed for handling freight containers, dealt with in ISO 22915-9.