BS 1088 & 4079:1966

Cooperating organizations
Foreword
BS 1088: 1966
Marine plywood manufactured from selected tropical
hardwoods
Specification
1. Scope
2. Definitions
3. Species of timber
4. Quality of veneers
5. Edge joints in veneers
6. Number of plies
7. Lay-up of plies before pressing
8. Bonding
9. Manufacturing defects in plywood
10. Scarf joints in boards
11. Testing the quality of the adhesion in the plywood
12. Moisture content
13. Finishing
14. Dimensions of plywood boards
15. Marking
16. Manufacturer's warranty
Appendices
A. Selection of samples from a consignment for testing
B. Method of making tests and assessing the results
C. Method of applying the knife test
D. Method of determining moisture content
E. Guidance on the choice of timbers for use in
     marine plywood
F. The strength properties of plywood
Tables
1. Limits of manufacturing defects in plywood
A. Test conditions
B. Properties of some timbers commonly used for the
     manufacture of marine plywood
Figures
1. Tool for the knife-testing of plywood
2. Knife-testing plywood
3. Bond quality No.10 )
4. Bond quality No. 8 ) in the Master Scale
5. Bond quality No. 6 ) for assessing bond
6. Bond quality No. 4 ) quality in plywood by
7. Bond quality No. 2 ) the knife test
8. bond quality No. 0 )
9. Guidance on maximum incidence of pinholes permitted
     in face veneers
10. Guidance on maximum incidence of pinholes
     permitted in core veneers
11. Total tolerances on thicknes of sanded boards
BS 4079: 1966
Plywood made for marine use and treated against attack
by fungi, insects and marine borers
Specification
1. Scope
2. Plywood
3. Species
4. Conditioning
5. Preservative treatment
6. Warranties during manufacture
7. Marking
8. Manufacturer's warranty
Tables
1. Moisture content of plywood, preservative classes
     TO, WB
2. Minimum specifications of treatments and marks

Comprising BS 1088: Marine plywood manufactured from selected untreated tropical hardwoods. Species of timber, quality of veneers, jointing, lay-up of plies, bonding, defects and marking; gives illustrations of the various bond qualities of plywood. BS 4079: Plywood made for marine use and treated against attack by fungi or marine borers. Covers cases where the risk of attack by fungi or marine borers is more severe than untreated timbers will withstand; gives a range of appropriate preservatives.