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IS 948:1983 is the Indian Standard (BIS) for functional requirements for water tender type 'a' for fire brigade use. This standard specifies the functional, material, and performance requirements for Water Tender Type 'A' used by fire brigades. It guides the design, chassis selection, pump capacity, water tank construction, and essential equipment inclusion to ensure operational reliability during firefighting.
Functional Requirements for Water Tender Type 'A' for Fire Brigade Use
! Ensure the selected commercial chassis can accommodate the fully loaded weight (water + crew + equipment) without exceeding the manufacturer's Gross Vehicle Weight (GVW).
! The Power Take-Off (PTO) unit must be carefully matched with the fire pump's input torque and speed requirements to prevent stalling during full-load operation.
Consolidated list per BIS. For the text of each amendment, refer to the BIS portal link above.
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International Equivalents
Similar International Standards
NFPA 1901:2016National Fire Protection Association (USA)
HighWithdrawn
Standard for Automotive Fire Apparatus
Specifies requirements for new automotive fire apparatus, with 'Pumper' or 'Pumper-Tanker' classifications closely matching a Water Tender.
EN 1846-2:2009+A1:2013European Committee for Standardization (CEN) - Europe
MediumCurrent
Firefighting and rescue service vehicles - Part 2: Common requirements - Safety and performance
Sets the general safety and performance framework for firefighting vehicles, under which a Water Tender would be classified.
BS EN 1846-2:2009+A1:2013British Standards Institution (United Kingdom)
MediumCurrent
Firefighting and rescue service vehicles - Part 2: Common requirements - Safety and performance
The UK's adoption of the European standard, defining the base requirements for vehicles used by UK fire brigades.
Key Differences
≠The 1983 Indian Standard lacks modern vehicle safety requirements mandated by NFPA and EN, such as Electronic Stability Control (ESC), crew cabin structural integrity tests, and comprehensive seatbelt warning systems.
≠NFPA and EN standards have detailed, multi-point pump performance test protocols (e.g., 100% capacity at 10 bar, 70% at 12 bar). IS 948 specifies a single primary rating (e.g., 2250 LPM at 7 bar), which is less comprehensive.
≠International standards provide detailed requirements for integrated Class A and/or Class B foam proportioning systems. IS 948:1983 only lists a portable foam-making branch as ancillary equipment, not an integrated vehicle system.
≠The classification system differs significantly. IS 948 uses a simple 'Type A' designation, whereas NFPA uses functional names (Pumper, Tanker) and EN uses a complex matrix of mass-class, terrain-category, and function.
Key Similarities
≈All standards define a self-propelled vehicle with the core function of carrying water, a fire pump, hoses, and personnel to a fire scene for suppression activities.
≈The fundamental components specified are consistent across standards: a chassis, water tank, midship or rear-mounted pump, hose storage, and stowage for ancillary equipment.
≈All standards mandate the inclusion of a pump priming system, enabling the apparatus to draft water from a static, unpressurized source like a pond or river.
≈Basic vehicle performance metrics, such as minimum road speed and acceleration capabilities, are specified in all standards to ensure timely emergency response.
Parameter Comparison
Parameter
IS Value
International
Source
Minimum Water Tank Capacity
7000 litres
≥ 1000 US gallons (approx. 3785 litres) to be classified as a Pumper-Tanker