IS 709 : 1974 Specification for Medium Strength Aircraft Plywood

UDC 674 - 419.32 :629.13                                     CED 20

Reaffirmed 2019

1 Scope

1.1 This standard lays down then requirements for quality, bonding, manufacture and strength of medium strength aircraft plywood suitable for use in the manufacture of secondary structural parts of aircraft and gliders, such as gussets, reinforcing plates, fuselage covering, etc, where medium or low strength plywoods are generally specified.

2 References

IS 2 : 1960Rules for rounding off numerical values

IS 287 : 1972Recommendations for maximum permissible moisture content of timber used for different purposes in different climatic zones

IS 707 : 1968 Glossary of terms applicable to timber and timber products

IS 848 : 1974 Specification for synthetic resin adhesives for plywood (phenolic and aminoplastic)

IS 1734 : Part I : 1972 Methods of test for plywood: Part I Determination of density and moisture content

IS 1734 : Part IV : 1972 Methods of tests for plywood: Part IV Determination of glue shear strength

IS 1734 : Part V : 1972 Methods of Tests for plywood: Part V Test for adhesion of plies