BIS Standards

IS 710 Marine Plywood -Standard

IS 710 (2010): Marine Plywood -Specification
Indian Standard Marine Plywood — Specification (Second Revision)

1. Scope

This standard delineates the requirements for materials, manufacture, and performance of IS 710 marine plywood suitable for the construction, repair, and maintenance of marine and river craft, pontoons, and similar structures.

Download IS 710 (2010): Marine Plywood Standard

2. References

The standards specified in Annex A, at the time of publication, form an integral part of this standard. It is essential to verify and consider the most recent editions of these standards, as all are subject to revision.


IS-710 Marine Plywood -Product Manuals & SIT Download

List of Approved laboratories By BIS for : IS 710 Marine Plywood

List of Labs under Indian Standard (IS) Number: IS 710:2010
S.No.Lab NameAddressCityStateContact NumberEmail Id
1BIS, Bengaluru Branch Laboratory (BNBL)Peenya Industrial Area, 1st Stage, Tumkur Road, Bengaluru – 560058BengaluruKarnataka+91 11
2BIS, Central Laboratory (CL)20/9, Site 4, Sahibabad Industrial Area, SahibabadGhaziabadUttar Pradesh0120 4177
3BIS, Guwahati Branch Laboratory (GBL)2nd Floor, West End Block, Housefed Building Complex, Last Gate, Dispur, Guwahati, Assam 781006GUWAHATIAssam+91
4BIS, Northern Regional Laboratory (NRL)B-69, Industrial Focal Point, Phase VII, MohaliMohaliPunjab+91 172
5BIS, Patna Branch Laboratory (PBL)Bureau of Indian Standards, Patliputra Industrial Estate, Patna – 800013PatnaBihar0612
6Unique Test HouseVILLAGE:-SARSINI, PO:-LALRU, Tehsil DerabassiMOHALIPunjab+91 9896169971
8National Test House (WR), MumbaiPlot No. F – 10, MIDC , Andheri (E)MumbaiMaharashtra+91 033
9Hindustaan Test HousePlot No. 36,Sector 1, HSIIDC IGC Saha, Ambala CanttAmbala CanttHaryana+91
10National Test House (NR)Kamla Nehru Nagar,GhaziabadGhaziabadUttar Pradesh+91
12Indian Plywood Industries Research & Training Institute Field Station Kolkata2/2 Biren Roy Road WestKolkataWest Bengal+91 33
13CIPET, HyderabadIDA Phase II, CherlapallyHyderabadTelangana+91
14National Test House (NWR)E 763, ROAD NO. 9F1, VKI AREAJaipurRajasthan+91 33
15Quality Marking & Testing Laboratory Indore03, Pologround, Industrial Estate, Indore (M.P.)IndoreMadhya Pradesh+91 0755
16CIPET KOCHI( Formerly Known as Centre for Biopolymer Science & Technology ), 196 A, HIL Colony, Pathalam, Edayar Road,Eloor, Udyogamandal.P.O., KochiKOCHIKerala+91
17Indian Plywood Industries Research &
18Universal Testing and Research Centre, New Delhi487/59, Ground Floor, Village PeeragarhiNew DelhiDelhi+91

3. Terminology of IS 710 Marine Plywood

For the purpose of this standard, the definitions outlined in IS 707 shall be applicable.

4. Materials of IS 710 Marine Plywood

4.1 Timber

  • 4.1.1 The species of timbers for face veneers, cores, and cross bands are detailed in Tables 1 and 2.
    • The use of alternative timber species requires prior approval from the purchaser.
  • 4.1.2 It is recommended to use a single timber species, and if combinations are used, precautions must be taken to prevent species incompatibility.
  • 4.1.3 For ECO-Mark, veneers must be sourced from non-natural forest wood, including industrial and social forestry plantations and shade trees from tea and coffee estates.

4.2 Adhesive

  • 4.2.1 Adhesives must be based on synthetic resin conforming to BWP Type of IS 848.
  • Extenders are prohibited, and fillers, if used, should not exceed 10 percent of the glue’s solid content.

5. Manufacture

5.1 Veneers

  • Veneers may be rotary cut or sliced and must be smooth for even glue spread.
  • Moisture content should not exceed 10 percent before bonding.
5.1.1 Defects in Veneers
  • Face veneers shall be free from sapwood.
  • Core veneers may have sound knots, not exceeding 50 mm in any one direction, and open defects, provided they do not impair the required surface finish.

5.2 Assembly of IS 710 Marine Plywood

5.2.1 Gluing

The glue application must be evenis IS 710 Maine Plywood , ensuring secure bonding without any unglued areas or starved joints upon veneer separation.

5.2.2 Thickness of Veneers

Veneer thickness should be uniform within a tolerance of ±5 percent. Corresponding veneers on either side of the central plane should share the same thickness and species, cut by the same method (rotary or sliced).

  • For 3-ply boards, the core veneer thickness should be at least equal to one of the face veneers but not exceed the combined thickness of the two face veneers. In multi-ply boards, no veneer’s thickness should exceed twice that of any other veneer in the same board.

5.2.3 Joint in Veneers Veneer Joints

Veneers requiring jointing to form a ply should be spliced before assembly. All joints should be cut square, with tapes, excluding fusible tapes, not used internally. Fusible tapes, if used for edge joints or repairing splits, should be converted during manufacturing to an adhesive meeting specified test requirements. Edge Joints

Edge joints in veneers should be made on a tapeless splicer or by fusible tape, staggered not less than 25 mm between any veneer and the next one with the same grain direction on both faces. End Joints

End joints are permitted in all veneers forming the core ply and in the face plies of panels, provided the panel length exceeds 2 m. All joints should be accurately scarfed with an inclination not steeper than 1 in 10, bonded with adhesive meeting the specified requirements. Scarf Joints

When sizes larger than available press size are required, boards with proper scarf joints may be made with the prior approval of the purchaser. The number and location of scarf joints should be agreed upon between the purchaser and the manufacturer.

5.3 Treatment

The board must undergo treatment through pressure impregnation with a fixed-type preservative, either water-soluble or oil-based. The retention should be a minimum of 12 kg/m³ for CCA (copper-chromearsenic) or CCB (copper-chrome-boron) compositions as per IS 10013 (Parts 1 to 3) and 100 kg/m³ for creosote or creosote-fuel oil composition as specified in Annex A of IS 5539. Adequate penetration during treatment is crucial.

5.4 Moisture Content

Finished plywood boards should maintain a moisture content of not less than 5 percent and not more than 15 percent throughout the year. The acceptable range depends on the geographical location where the test is conducted, as specified in IS 287.

6. Dimensions

6.1 Board Dimensions

The dimensions of plywood boards should adhere to the following standards:

  • a) 2,400 mm × 1,200 mm
  • b) 2,100 mm × 1,200 mm
  • c) 1,800 mm × 1,200 mm
  • d) 2,100 mm × 900 mm
  • e) 1,800 mm × 900 mm

6.2 Thickness

Plywood boards should be available in the following thicknesses: 3 mm, 4 mm, 5 mm, 6 mm, 9 mm, 12 mm, 15 mm, 19 mm, 22 mm, and 25 mm. Other dimensions, such as length, width, and thickness, may be used upon agreement between the manufacturer and the purchaser.

This standard serves as a comprehensive guide to ensure the quality and performance of marine plywood, promoting standardization in the industry. Adherence to these specifications is crucial for the construction and maintenance of reliable marine and rivercraft structures.

7. Quality Control

To ensure compliance with this standard, manufacturers are encouraged to implement robust quality control measures at various stages of production. Regular checks should be conducted to verify the adherence to timber species requirements, proper adhesive application, and the uniformity of veneer thickness.

8. Marking and Certification

Each marine plywood board meeting this standard should be clearly marked with relevant information, including dimensions, thickness, timber species, and adherence to ECO-Mark requirements if applicable. Certification bodies may verify compliance through routine inspections and testing.

9. Storage and Handling

Proper storage conditions should be maintained to prevent excessive moisture absorption or exposure to extreme environmental conditions. Manufacturers and distributors must provide guidelines for handling and storage to ensure the integrity of the marine plywood until it reaches the end user.

10. Endorsement and Adoption

Industry stakeholders, regulatory bodies, and relevant authorities are encouraged to endorse and adopt this standard to promote consistency and safety in marine plywood applications. This can contribute to the overall improvement of marine and rivercraft construction practices.

11. Revision of the Standard

Given the dynamic nature of materials, technology, and industry practices, periodic revisions of this standard are essential. Authorities responsible for the standard should undertake timely reviews and updates to address emerging challenges and advancements in marine plywood manufacturing.

Indian Standard Marine Plywood — Specification is 710: FAQs

Is IS 710 suitable for outdoor applications?

Absolutely. Indian Standard Marine Plywood — Specification is 710’s waterproof and borer-resistant features make it an excellent choice for outdoor projects.

Can IS 710 be used in freshwater environments?

Certainly. Its resistance to borers and fungi, coupled with waterproof properties, makes it suitable for freshwater environments as well.

What makes IS 710 an ideal choice for marine projects?

IS 710’s superior bonding strength, water endurance, and resistance to borers and fungi make it a perfect fit for the demanding conditions of marine projects.

Is it cost-effective compared to other marine plywood options?

While the initial cost may be slightly higher, the longevity and durability of IS 710 make it a cost-effective choice in the long run.

Can IS 710 be painted or laminated for decorative purposes?

Yes, it can. IS 710’s smooth surface allows for easy painting or laminating, adding a decorative touch to your projects.

How does IS 710 contribute to sustainable practices?

IS 710 is often sourced from sustainable forestry practices, promoting environmental responsibility in the plywood industry.

12. Conclusion

The adherence to the Indian Standard for Marine Plywood—Specification (Second Revision) is paramount for maintaining the quality, safety, and sustainability of marine and rivercraft construction. All stakeholders, including manufacturers, regulators, and end-users, play a crucial role in ensuring the effective implementation of these specifications for the benefit of the industry and the environment.

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