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IS 15455:2004 is the Indian Standard (BIS) for grading rules for split canes. This standard specifies the grading rules for split canes based on defects such as borer holes, fungal stains, cracks, and discoloration. It classifies canes into Grade I and Grade II to ensure quality for their end-use in furniture, handicrafts, and other products.
! Proper seasoning to achieve a moisture content between 8% and 12% is crucial before grading to prevent future defects.
! Grading is primarily a visual inspection process. A good light source is essential for accurately identifying defects like fine cracks and borer holes.
! Always check for live insect infestation, as this will lead to immediate rejection regardless of other quality parameters.
SNI 8211:2015BSN (Badan Standardisasi Nasional), Indonesia
HighCurrent
Klasifikasi dan persyaratan mutu rotan belah (Classification and quality requirements for split rattan)
Directly addresses the classification and quality requirements for split rattan, similar to the IS code.
PNS/BAFPS 23:2004Bureau of Agriculture and Fisheries Standards (BAFS), Philippines
MediumCurrent
Philippine National Standard - Rattan Poles - Grading and Classification
Covers grading of rattan poles, not split canes, but shares principles of defect-based classification.
ISO 22157:2019ISO (International Organization for Standardization), International
LowCurrent
Bamboo — Determination of physical and mechanical properties
Specifies test methods for bamboo properties, not grading rules for rattan, but is the closest ISO standard for a similar natural material.
Key Differences
≠IS 15455 provides three grades (Grade I, II, III), while standards like SNI 8211:2015 often provide a more detailed grading system, sometimes differentiating between species or end-use (e.g., for weaving vs. binding).
≠International standards from producing countries (like Indonesia's SNI) may include stricter requirements for fungal and insect attack related to phytosanitary measures for export, which may be more detailed than the general requirements in IS 15455.
≠IS 15455 focuses on generic 'split canes', while national standards from Southeast Asia (e.g., SNI, PNS) often provide grading rules tied to specific commercial species of rattan (e.g., Calamus manan, Calamus caesius) prevalent in their region.
≠Dimensional specifications in IS 15455 are provided in metric units with specific tolerances. While international standards also use metric units, the nominal size ranges and tolerance levels can differ based on local processing capabilities and market demands.
Key Similarities
≈All standards primarily base their grading system on the presence, absence, and severity of visual and physical defects such as knots, cracks, discoloration, blemishes, and insect/fungal damage.
≈Control of moisture content is a critical and common parameter across IS 15455 and its international counterparts, as it directly impacts dimensional stability, susceptibility to decay, and workability.
≈The fundamental structure is hierarchical, with the highest grade being nearly free of defects, having uniform color and texture, while lower grades permit an increasing number of imperfections.
≈All related standards require the material to be mature, well-dried, and properly processed (cleaned of silica/epidermis) before grading is applied.
Parameter Comparison
Parameter
IS Value
International
Source
Moisture Content (Max)
Shall not exceed 15 percent by mass
≤ 15% (for highest grade)
SNI 8211:2015
Top Grade Definition (General)
Grade I: Uniform colour and gloss, free from all defects like cracks, blemishes, fungal/insect attack.
Mutu A (Grade A): Uniform color, smooth surface, free from defects, insect holes, and fungal stains.
SNI 8211:2015
Insect Attack (Top Grade)
Shall be free from fungal and insect attack.
Not permitted (Bebas dari lubang serangga).
SNI 8211:2015
Cracks (Second Grade)
Grade II: May have minor blemishes and fine hair cracks. No deep cracks allowed.
Mutu B (Grade B): Minor cracks are permissible but limited in quantity and size.
SNI 8211:2015
Blemishes/Discoloration (Top Grade)
Grade I: Shall be free from blemishes.
Mutu A (Grade A): Free from stains (bebas dari noda).
SNI 8211:2015
Dimensional Tolerance (Width)
±0.2 mm for widths up to 5 mm; ±0.3 mm for widths above 5 mm.
Typically specified with a tolerance, e.g., ±0.25 mm, but can vary by width class.
SNI 8211:2015
⚠ Verify details from original standards before use
Key Values6
Quick Reference Values
Required moisture content at time of inspection8 to 12 percent
Minimum length of split canes1.5 m
Permissible borer holes for Grade INil
Permissible borer holes for Grade IINot more than 2 holes per metre length
Permissible cracks for Grade INil
Permissible discoloration for Grade INot more than 5 percent of the surface area
Tables & Referenced Sections
Key Tables
Table 1 - Permissible Defects for Different Grades of Split Canes