JPIC/JAS Standards Overview: Lumber, OSB, and Forest Products

Japanese Agricultural Standards (JAS) Notifications:

1. JAS Notification No. 701: Laminated Veneer Lumber (Structural / Non-Structural)
2. JAS Notification No. 702 (2008): Supplementary Regulations – ME-4
   • Labelling Format and Method for Graded Laminated Veneer Lumber
3. JAS Notification No. 111: Glue Laminated Timber
4. JAS Notification No. 112: Decorative Glue Laminated Timber
5. JAS Notification No. 143: Softwood Structural Sawn Lumber
6. JAS Notification No. 360 and 1604: Structural Panel
7. JAS Notification No. 600: Structural Lumber for Wood Frame Construction
8. JAS Notification No. 702: Machine Stress Rated Structural Lumber for Wood Frame Construction
9. JAS Notification No. 1443: Structural Laminated Veneer Lumber

JAS (MAFF) Notifications for OSB:

• JAS (OSB) Notification No. 938 (2008): Test Methods include
  • Normal State Delamination Test (Internal Bond)
  • Boiling Water Soak Delamination Test
  • Moisture Content Test
  • Normal State Bending Test
  • Bending Tests Under Wet Conditions
  • Water Absorption Expansion Test
  • Nail Joint Shear Test
  • Nail Withdrawal Resistance Test
  • Formaldehyde Emission Test

• JAS (Glulam) Notification No. 1152 (2007): Test Methods include
  • Cold Water Soak Delamination Test
  • Boiling Water Soak Delamination Test
  • Vacuum-Pressure Delamination Test
  • Block Shear Test
  • Moisture Content Test
  • Bending Test A (Beam MOE and MOR)
  • Bending Test B (Lumber MOE)
  • Bending Test C (Lamina MOR)
  • Tensile Strength Test (Lamina)
  • Formaldehyde Emission Test

Withdrawn Standards for Forest Lumber:

• JIS A 9112:1989: Treated lumbers by diffusion process
• JIS F 2101:1990: Turnbuckles for lumber lashing
• JIS F 2102:1990: Chains for lumber lashing

Key Organizations:

• JAS: Japanese Agricultural Standard
• JIS: Japanese Industrial Standards
• MAFF: Ministry of Agriculture, Forestry and Fisheries (Japan)

This summary provides a clear breakdown of the various JAS notifications and related standards for different types of wood products and OSB in Japan.