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IS 12859:1989 is the Indian Standard (BIS) for fire fighting - brush hook for forest fires -specification. This standard specifies the requirements for a brush hook used for fighting forest fires. It covers the materials, dimensions, construction, workmanship, heat treatment, and finish to ensure the tool is effective for cutting undergrowth and clearing fire lines.
Fire Fighting - Brush Hook for Forest Fires -Specification
Consolidated list per BIS. For the text of each amendment, refer to the BIS portal link above.
steelwood
International Equivalents
Similar International Standards
USFS Specification 5100-356FU.S. Department of Agriculture, Forest Service (USFS), USA
HighCurrent
Specification for Hand Tools, Wildland Fire Fighting
Directly specifies material, design, and construction for wildland firefighting brush hooks (Type I and II).
NFPA 1977:2022National Fire Protection Association (NFPA), USA
MediumCurrent
Standard on Protective Clothing and Equipment for Wildland Fire Fighting and Urban Interface Fire Fighting
Sets performance-based requirements for all wildland hand tools, including functional and safety tests.
BS 7064:1989British Standards Institution (BSI), UK
LowWithdrawn
Specification for billhooks and slashers
Covered general-purpose agricultural/forestry tools similar in form, but not specific to firefighting demands.
Key Differences
≠The IS code specifies exact Indian steel grades (e.g., 55Si7), whereas the USFS specification lists US-based AISI/SAE steel grades (e.g., 1080/1095). NFPA 1977 is performance-based and doesn't specify material, only that it must pass cutting and durability tests.
≠IS 12859 allows for a bamboo handle, which is not a typical or specified option in USFS or other international standards, which favor Hickory or fiberglass composites.
≠NFPA 1977 mandates extensive performance testing, including a standardized cutting test, handle-to-head attachment strength test (pull test), and corrosion resistance testing (salt fog test), which are not explicitly required by IS 12859.
≠The maximum weight in IS 12859 is 2.2 kg, which is significantly heavier than the typical ~1.8 kg total weight of a USFS Type I brush hook with a 32-inch handle.
Key Similarities
≈All standards define the tool's primary purpose as a manual cutting implement for clearing undergrowth, bushes, and small saplings during wildland fire operations.
≈The fundamental construction of a forged steel head with a sharp, curved blade attached to a long handle is a consistent feature across all related standards.
≈All standards require the blade to be heat-treated to achieve a hard cutting edge for sharpness retention and a softer, more ductile body to prevent fracture during heavy use.
≈The importance of a secure and robust head-to-handle attachment, typically using rivets, straps, or a strong interference fit, is a shared safety and durability requirement.
Parameter Comparison
Parameter
IS Value
International
Source
Blade Material
Steel conforming to IS 1570 (Part 5), Grade 55Si7 or T80
Hot-rolled high carbon steel, AISI/SAE 1080 or 1095
USFS 5100-356F
Cutting Edge Hardness
45 to 50 HRC
47 to 53 HRC
USFS 5100-356F
Blade Body Hardness
35 to 40 HRC
36 to 42 HRC
USFS 5100-356F
Handle Material
Seasoned hardwood (Ash, Hickory) or Bamboo
American Hickory (Grade A) or Fiberglass Composite
USFS 5100-356F
Nominal Handle Length
900 mm
813 mm (32 in) or 914 mm (36 in)
USFS 5100-356F
Maximum Total Weight
2.2 kg
Approx. 1.8 kg (4.0 lbs) for a Type I tool with a 32-inch handle
USFS 5100-356F
Mandatory Performance Test
No specific performance test mandated, only material and dimensional compliance.
Required cutting performance, handle pull-off strength, and corrosion tests.
NFPA 1977
⚠ Verify details from original standards before use