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IS 3728:1985 is the Indian Standard (BIS) for wooden boxes for packaging apples. This standard prescribes the requirements for materials, dimensions, manufacture, assembly, and testing of wooden boxes intended for the packaging and transportation of apples.
! Controlling the moisture content of the timber (below 18%) is critical to prevent warping, shrinkage, and fungal growth which could spoil the fruit.
! Ensure that nails are properly clinched and driven flush with the surface to prevent damage to the apples and ensure structural integrity during rough handling.
! Timber used should be free from large dead knots, rot, and insect attacks to maintain box strength.
Standard Specification for Wood-Cleated Panelboard Shipping Boxes
Specifies materials and construction for wooden boxes, but is performance-oriented and for general cargo.
ISO 3394:2012International Organization for Standardization, International
LowCurrent
Dimensions of rigid rectangular packages — Transport packages
Standardizes external package dimensions for pallet compatibility, not box construction or materials.
BS ISO 6780:2003BSI Group (via ISO), UK/International
LowCurrent
Flat pallets for intercontinental materials handling. Principal dimensions and tolerances
Defines pallet dimensions which packaging dimensions are often designed to fit, influencing modern box design.
AS 1897-1976Standards Australia, Australia
HighWithdrawn
Wooden cases for fruit and vegetables
A highly similar prescriptive standard from the same era specifying wooden cases for produce.
Key Differences
≠IS 3728 is highly prescriptive, specifying exact timber species (Fir, Spruce, etc.), component dimensions, and nail counts for different box types.
≠Modern international standards (e.g., ASTM D6251) are performance-based, specifying strength requirements and allowing flexibility in material and design to meet those requirements.
≠IS 3728:1985 does not include phytosanitary requirements, whereas modern international trade mandates compliance with ISPM 15 for wood packaging (heat treatment or fumigation).
≠The Indian standard focuses on internal dimensions to hold a certain volume/weight of apples, while modern standards like ISO 3394 prioritize external dimensions for modularity and pallet-loading efficiency.
Key Similarities
≈Both the IS code and international standards specify the use of solid wood and/or wood-based panels as primary construction materials.
≈The fundamental construction principle using end panels, side panels, and a top/bottom assembled with cleats and nails is common to both.
≈Both require the use of sound timber, free from defects that would compromise structural integrity, such as decay, large loose knots, or insect damage.
≈Both recognize the importance of controlling the moisture content of the timber at the time of manufacture to prevent dimensional instability and fungal growth.
Parameter Comparison
Parameter
IS Value
International
Source
Moisture Content (Timber)
Shall not exceed 20 percent
Varies by wood group and expected conditions, but typically 15-22% at fabrication.
ASTM D6251 (General Practice)
Timber Species
Specified list: Fir (Abies pindrow), Spruce (Picea smithiana), Kail (Pinus wallichiana), etc.
Not specified by species; wood is classified into 4 groups based on properties like density and nail-holding power.
ASTM D6251
End Plank Thickness (Type I Box)
16 mm
Determined by box weight, size and wood group; could range from 12.7mm to 20.6mm.
ASTM D6251
Side Plank Thickness (Type I Box)
10 mm
Depends on material (e.g., 6mm plywood, 9.5mm lumber); determined by performance needs.
ASTM D6251
Internal Dimensions (Type I Box)
45.5 x 30.5 x 30.5 cm
Not specified; dimensions are derived from product fit and external modular sizes (e.g., 600x400 mm footprint).
ISO 3394
Fasteners
Cement-coated wire nails of specified length and gauge.
Type, diameter, and length are specified based on the thickness and group of wood being joined.
ASTM D6251
⚠ Verify details from original standards before use
Key Values3
Quick Reference Values
Maximum moisture content of timber18%
Typical packaging capacity18 kg to 20 kg
Maximum permissible tolerance on thickness of planks± 1 mm