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IS 10145:1982 is the Indian Standard (BIS) for bamboo supports for camouflaging equipment. This standard specifies the requirements for bamboo supports used in the construction of structures for camouflaging equipment. It covers material requirements, dimensions, manufacturing details, and preservation treatment for the bamboo components to ensure adequate strength and field durability.
Covers general structural design principles for bamboo culms, the raw material used in IS 10145.
ISO 22157:2019ISO (International Organization for Standardization)
MediumCurrent
Bamboo structures — Determination of physical and mechanical properties of bamboo culms — Test methods
Specifies test methods for bamboo properties, whereas IS 10145 has its own simpler, integrated testing requirements.
ISO 19624:2018ISO (International Organization for Standardization)
LowCurrent
Bamboo structures — Grading of bamboo culms — Basic principles and procedures
Provides a framework for grading raw bamboo culms, a step implicit in the material selection of IS 10145.
MIL-PRF-44339DU.S. Department of Defense, USA
LowCurrent
SUPPORT SYSTEM, CAMOUFLAGE SCREEN, LIGHTWEIGHT
Functionally equivalent standard for camouflage supports, but specifies modern materials like aluminum instead of bamboo.
Key Differences
≠IS 10145 is a prescriptive product standard, specifying exact dimensions and materials, while ISO standards like ISO 22156 are performance-based design codes, providing calculation methods and principles.
≠The Indian standard is exclusively for bamboo. Functionally equivalent military standards (e.g., MIL-PRF-44339D) now specify advanced materials like aluminum alloys or fiber-reinforced composites.
≠IS 10145 specifies outdated preservative chemicals (e.g., Copper-Chrome-Arsenic), whereas modern ISO standards reference current treatment practices subject to stringent environmental regulations.
≠Design verification in IS 10145 is through a simple proof load test on the final assembly, whereas ISO 22156 requires a full structural analysis using characteristic material strengths derived from testing per ISO 22157.
Key Similarities
≈Both the Indian standard and international bamboo codes mandate the use of mature, sound bamboo culms, free from decay, insect damage, and significant cracking.
≈All standards emphasize the need for seasoning (drying) the bamboo to a stable moisture content to improve strength and dimensional stability.
≈Both IS 10145 and related ISO codes recognize the importance of preservative treatment to ensure durability and service life against biological agents.
≈There is a common focus on controlling the geometry of the bamboo elements, such as diameter, straightness, and wall thickness, as these directly impact structural performance.
Parameter Comparison
Parameter
IS Value
International
Source
Primary Bamboo Species
Dendrocalamus strictus, sound and well-seasoned.
Species-agnostic; requires testing of the specific species used to determine its characteristic properties.
ISO 22156:2021
Design Approach
Prescriptive: specifies fixed lengths (e.g., 2.5m for tripod leg) and diameters (40-60mm).
Performance-based: dimensions are calculated based on required loads and material design values.
ISO 22156:2021
Moisture Content at Fabrication
Shall not exceed 15 percent.
Properties are typically normalized to a reference moisture content of 12%; modification factors are used for other levels.
ISO 22157:2019
Preservative Treatment
Specifies Copper-Chrome-Arsenic (CCA) or Acid-Cupric-Chromate (ACC) composition.
Recommends preservation based on hazard class, referencing modern, regulated preservatives (e.g., borates) and processes.
ISO 22156:2021
Load Test Verification
The finished tripod assembly must withstand a vertical load of 45 kg for 10 minutes without damage.
No assembly proof load; design capacity is calculated using partial safety factors and characteristic strengths from material tests.
ISO 22156:2021
Material of Functional Equivalent
Bamboo.
Aluminum Alloy (e.g., 6061-T6 or 6063-T6).
MIL-PRF-44339D
Finish
Two coats of service-green paint.
Chemical agent resistant coating (CARC) in specified camouflage green color.
MIL-PRF-44339D
⚠ Verify details from original standards before use
Key Values6
Quick Reference Values
Minimum diameter of upright/ridge pole at butt end75 mm
Minimum diameter of upright/ridge pole at top end50 mm
What kind of bamboo should be used for these supports?+
The standard specifies the use of sound, mature, and seasoned bamboo culms of suitable species, free from splits, decay, and insect attack (Clause 3.1).
Is chemical treatment mandatory for the bamboo?+
Yes, preservative treatment is mandatory and must be carried out in accordance with IS 401 to protect against biological degradation (Clause 7).
What are the main components specified?+
The standard details the dimensions and construction for bamboo uprights, ridge poles, and pins used to assemble the support structure (Clause 4).
What are the dimensional tolerances for the supports?+
A tolerance of ± 25 mm is permitted on the specified lengths of the uprights and ridge poles (Clause 4.1.1).