Bamboo mat board for general purposes -Specification

IS 13958: Bamboo Mat Board for General Purposes – Scope & Key Specifications

Scope (Clause 10.1 & related)

• Covers bamboo mat boards for general structural and non-structural applications.
• Boards made from bamboo mats bonded with adhesives.
• Dimensions as per Clause 6.2 (Amendment 3):
  • 2400×1200 mm, 2100×1200 mm, 1800×1200 mm, 2100×900 mm, 1800×900 mm
  • Other sizes by agreement.

Mechanical Properties (Clause 9.5 & Amendments)

• Test specimens per IS 2380 (Part 4): 1977 for bending tests.
• MOR and MOE ensure board strength and stiffness.

Additional Notes

• Eco-Mark requirements for environment-friendly bamboo sourcing.
• Minimum tensile strength requirements in clauses 9.3.1 to 9.3.3 (not less than 0.5–0.7 N/mm²).

Summary Diagram of Board Dimensions

graph LR
A[2400 x 1200 mm] --> B[Standard Sizes]
C[2100 x 1200 mm] --> B
D[1800 x 1200 mm] --> B
E[2100 x 900 mm] --> B
F[1800 x 900 mm] --> B
B --> G[Other sizes by agreement]

References: IS 2380 (Part 4) for testing; Amendments 1-3 for updated values.

IS 13958 - References: Key Formulas, Tables & Specifications

1. Modulus of Rupture (MOR) & Modulus of Elasticity (MOE) Tests (Clause 9.5)

• Test specimens as per IS 2380 (Part 4): 1977 (Static bending strength test)
• Dimensions: As specified in IS 2380 (Part 4)
• Test Method: Static bending test for MOR and MOE

2. Important Referenced IS Standards (Annex A)

3. Additional Notes

• Eco-Mark Requirements: Bamboo mats must come from non-natural forest sources.
• Markings on boards to be on the face near one corner (Clause 10.3).
• Amendments updated MOR average to 30 N/mm².

Summary Diagram of Test Setup (Static Bending for MOR & MOE)

graph LR
A[Specimen] --> B[Supports at ends]
B --> C[Load applied at midpoint]
C --> D[Measure deflection & failure load]
D --> E[Calculate MOR & MOE]

This

IS 13958 - Definitions (Clause 3.1):

• The standard refers to definitions as per IS 707:1976 and IS 6874:1973.
• No unique definitions are directly listed in IS 13958; users must refer to these codes for terminology related to PVC pipes and fittings.

Important Notes from IS 13958:

• Clause 3.1: Definitions align with IS 707 & IS 6874.
• Clause 9.4.2 & 9.4.3: Minimum strength requirements — "not less than 3.0 N/mm²" for relevant parameters.
• Clause 9.1: Specifies test specimen requirements (details in the full standard).

Quick Reference:

If you need specific definitions, consult IS 707 & IS 6874 for terms like PVC pipe dimensions, pressure ratings, and material properties.

flowchart LR
    A[IS 13958 Definitions] --> B[Refer IS 707:1976]
    A --> C[Refer IS 6874:1973]
    B --> D[PVC Pipe Terminology]
    C --> E[PVC Fittings Terminology]

IS 13958: General Requirements Summary

Key Specifications & Dimensions (Clause 6.2)

• Bamboo mat board standard sizes (mm):
  • 2400 × 1200
  • 2100 × 1200
  • 1800 × 1200
  • 2100 × 900
  • 1800 × 900
• Note: Other sizes may be agreed upon between manufacturer and purchaser.

Minimum Strength Requirements (Inserted "not less than" clauses)

• Tensile Strength:
  • Clause 9.4.2 & 9.4.3: Not less than 3.0 N/mm²
• Flexural Strength:
  • Clause 9.3.1: Not less than 0.7 N/mm²
• Compressive Strength:
  • Clause 9.3.2 & 9.3.3: Not less than 0.5 N/mm²

Test Specimen (Clause 9.1)

• Specimens must conform to specified dimensions and preparation for mechanical testing.

Summary Table of Mechanical Properties

This ensures bamboo mat boards meet structural performance criteria for safe usage.

IS 13958: Materials and Manufacture - Key Specifications

1. Mechanical Properties (Clause 9.5)

• Test specimens per IS 2380 (Part 4) for Modulus of Rupture (MOR) and Modulus of Elasticity (MOE).
• Values (N/mm²):

*Amendment No. 2 updated average MOR to 30 N/mm².

2. Dimensions (Clause 6.2)

Standard sizes of bamboo mat boards (mm):

• 2400 × 1200
• 2100 × 1200
• 1800 × 1200
• 2100 × 900
• 1800 × 900

(Other sizes may be agreed upon by manufacturer and purchaser.)

3. Minimum Strength Requirements (Clauses 9.3.1 - 9.4.3)

• Tensile and compressive strengths: not less than specified values, e.g., 3.0 N/mm² for some parameters.

4. Manufacture

• Bamboo mats sourced from non-natural forests for Eco-Mark products.
• Manufacturing to follow BIS standards ensuring environment-friendly certification.

Reference Test Method:

• IS 2380 (Part 4): Static bending strength test for MOR and MOE.

flowchart LR
    A[Raw Bamboo] --> B[Mat Formation]
    B --> C[Pressing & Curing]
    C --> D[Cutting to Dimensions]
    D --> E[Testing per IS 2380 Part 4]
    E --> F{Meets MOR & MOE?}
    F -->|Yes| G[Approved Bamboo Mat Board]
    F -->|No| H[Reject / Reprocess]

This summary ensures compliance with IS 13958 manufacturing and testing requirements for bamboo mat boards.

IS 13958: Dimensions and Tolerances for Bamboo Mat Boards

Dimensions (Clause 6.2)

Standard sizes (mm) for bamboo mat boards are:

• 2400 × 1200
• 2100 × 1200
• 1800 × 1200
• 2100 × 900
• 1800 × 900

Note: Other dimensions may be mutually agreed upon by manufacturer and purchaser.

Tolerances on Nominal Sizes (Clause 6.4 | Table 6.4)

Notes:

• Thickness tolerance is percentage-based, ensuring precision for thinner boards.
• Squareness and edge straightness control the board's geometric accuracy, critical for fitting and assembly.

flowchart LR
    A[Nominal Size] --> B[Length ±6mm / -0mm]
    A --> C[Width ±3mm / -0mm]
    A --> D[Thickness ±5% or ±10%]
    A --> E[Squareness ±0.2%]
    A --> F[Edge Straightness ±0.2%]

This ensures bamboo mat boards conform to quality and dimensional standards for structural and decorative applications.

IS 13958: Workmanship and Finish - Key Specifications

1. Dimensional Tolerances (Clause 6.4, Table 6.4)

2. Markings (Clause 10.3)

• Markings must be on the face of the board near one corner for identification.

3. Pressing Parameters (Clause 1.5)

• Pressure: 1.5 to 2.0 N/mm²
• Hot pressing time depends on board thickness.

4. Referenced Standards (Annex A)

• IS 401: Preservation of timber
• IS 2380 (Part 5 & 22): Test methods for wood particle boards
• IS 7638: Sampling methods for wood-based panels
• IS 5539, 6874: Preservative treated plywood and bamboo tests

Summary Diagram of Tolerances

graph LR
A[Board Dimensions] --> B[Length: +6/-0 mm]
A --> C[Width: +3/-0 mm]
A --> D[Thickness: ±5% or ±10%]
A --> E[Squareness: 0.2%]
A --> F[Edge Straightness: 0.2%]

This ensures quality control in size, shape, and finish for wood-based panels as per IS 13958.

IS 13958 Sampling Key Points (per Clause 8.1 & 9.1):

• Sampling method and conformity criteria follow IS 7638:1986 (Methods of sampling for plywood, fibreboards, insulation boards, particle boards).
• Test specimens: Cut 50 mm x 50 mm squares at full thickness from different board positions (Clause 9.1.1).
• Mark specimens on the board face near one corner (Clause 10.3).

Summary Table: Sampling & Specimen Preparation

Reference Standards for Related Tests (Annex A):

Conceptual Workflow (Mermaid.js):

flowchart TD
    A[Select Boards as per IS 7638] --> B[Cut 50x50 mm Specimens]
    B --> C[Mark Specimens near corner]
    C --> D[Conduct Tests (Mechanical, Mycological, etc.)]
    D --> E[Evaluate Conformity per IS 13958]

Note: For detailed sampling size, lot size, and acceptance criteria, refer directly to IS 7638:1986.

IS 13958 - Key Test Specifications and References

1. Test Specimen (Clause 9.1 & 9.1.1)

• Prepare six test specimens as per clause 9.1.1 for each test.
• Markings to be done on the face of the board near one corner (Clause 10.3).

2. Surface Strength Test in Wet State (Clause 9.4.2)

• Test specimens are subjected to wet conditions before testing surface strength.
• Follow the detailed method described in the code for wet state testing.

3. Referenced IS Standards for Tests (Annex A, Clause 2)

4. Key Test Types Covered:

• Tensile Strength Perpendicular to Surface
• Surface Glueability
• Mycological Test (Table 9.4.3 in Clause 10.3)
• Sampling and Dimensions Tolerances

Summary Table for Tensile Strength Test (Example from IS 2380 Part 5)

flowchart LR
    A[Test Specimen Preparation] --> B[Marking on Board Corner]
    B --> C[Conduct Surface Strength Test]
    C --> D{Condition?}
    D -->|Dry| E[Tensile Strength Test (Dry)]
    D -->|Wet| F[Tensile Strength Test (Wet)]
    E & F --> G[Record Results]

For detailed test procedures, specimen

IS 13958: Marking Specifications Summary

• Marking Location:
  Per Clause 10.3, all markings must be on the face of the board near one corner.

• Strength Marking (per IS 2380 Part 22:1981):

  • Average tensile strength: ≥ 4.5 N/mm²
  • Minimum individual tensile strength: ≥ 3.0 N/mm²

• BIS Certification Mark (Clause 10.2):

  • Bamboo mat boards may carry the BIS Standard Mark.
  • Usage governed by BIS Act, 1986 and related rules.

Key References from IS 13958 and Related IS Codes

Marking Summary Table

flowchart LR
    A[Board Face] --> B[Marking near one corner]
    B --> C{Marking Details}
    C --> D[Average Tensile Strength ≥ 4.5 N/mm²]
    C --> E[Min Individual Tensile Strength ≥ 3.0 N/mm²]
    C --> F[BIS Standard Mark (Optional)]

This ensures traceability, quality assurance, and compliance with BIS standards.

IS 13958: Additional Requirements for Eco-Mark Bamboo Mat Boards

Key Specifications for Eco-Mark (Clause 10)

• Environmental Clearance:
  Manufacturer must obtain BIS environmental consent clearance from the State Pollution Control Board per:
  • Water (Prevention and Control of Pollution) Act, 1974 & 1977
  • Air (Prevention and Control of Pollution) Act, 1981
  • Environment (Protection) Act, 1986
• Raw Material Source:
  Bamboo mats must be sourced from non-natural forests only.
• Documentation:
  Manufacturer must submit certificates/declarations proving bamboo source to BIS for Eco-Mark application.

Mechanical Properties (Clause 9.5)

Test specimens per IS 2380 (Part 4): 1977 for static bending strength.

Summary Flow for Eco-Mark Compliance

flowchart TD
    A[Start Manufacturing] --> B[Obtain Environmental Consent]
    B --> C[Source Bamboo from Non-Natural Forests]
    C --> D[Produce Bamboo Mat Board]
    D --> E[Test MOR & MOE per IS 2380 (Part 4)]
    E --> F[Submit Certificates & Test Reports to BIS]
    F --> G[Obtain Eco-Mark Label]

For detailed testing procedures, refer to IS 2380 (Part 4): 1977. The Eco-Mark ensures environmentally friendly production aligned with government regulations.

IS 13958:1994 references several Indian Standards essential for bamboo mat board specification and testing. Key referenced standards include:

• IS 707:1976 — Definitions related to plywood and allied products.
• IS 6874:1973 — Terminology for wood-based panels.
• IS 2:1960 — Rules for rounding off numerical values.
• Standards related to adhesives, testing methods, and eco-labeling criteria (Eco-Mark).

Important Specifications & Notes:

• Bamboo mat board consists of two or more woven bamboo mats bonded with adhesive.
• The product is intended as an alternative to timber due to timber scarcity.
• Compliance testing results must be rounded per IS 2:1960 rules.
• Eco-Mark criteria are specified under Clause 11.1(d).

Summary Table of Key IS References:

These standards collectively ensure quality, uniformity, and eco-compliance of bamboo mat boards.

IS 13958 Mycological Test Method (Clauses 9.3.3, 9.4.3, Annex B)

The Mycological Test in IS 13958 evaluates the resistance of wood-based panels to fungal attack.

Key Points:

• Test Objective: Assess fungal growth on the specimen surface.
• Specimen Preparation: As per Annex B, samples are exposed to fungal cultures under controlled humidity and temperature.
• Test Duration: Typically 4 weeks (28 days).
• Evaluation: Visual rating of fungal growth on a scale (e.g., 0 = no growth, 5 = heavy growth).
• Marking: Clause 10.3 specifies markings on the board face near one corner for identification.

Reference Standards:

• IS 2380 (Part 22): Surface glueability and related tests.
• IS 401: Code of practice for timber preservation.
• IS 2380 (Part 5): Tensile strength perpendicular to surface.
• IS 7638: Sampling methods for wood-based panels.

Typical Procedure Summary:

flowchart TD
  A[Sample Preparation] --> B[Inoculation with Fungal Culture]
  B --> C[Incubation (28 days, controlled RH & Temp)]
  C --> D[Visual Assessment of Fungal Growth]
  D --> E[Rating & Reporting Results]

Important:

• Maintain humidity ~90-95% and temperature 25-30°C during incubation.
• Use common fungi like Aspergillus niger, Trichoderma viride for testing.

This test ensures durability against fungal decay in wood panels per IS 13958.

IS 13958: Committee Composition - Key Details

The Committee Composition for IS 13958 (Wood Products) is detailed in Annex C and includes:

• Chairman: Dr. P. M. Ganapathy (Indian Plywood Industries Research and Training Institute)
• Members: Representatives from various government departments, plywood manufacturers' associations, research institutes, defense, railways, and technical development bodies.
• Member Secretary: Shri Sanjay Pant (Assistant Director, BIS)
• Convener: Dr. H. N. Jagadeesh (Indian Plywood Industries Research and Training Institute)

Key Points:

• The committee includes technical experts, industry representatives, and government officials.
• Alternates are appointed for many members ensuring continuity.
• The committee oversees standards development, testing procedures, and conformity criteria for plywood and wood products.

Related Specifications (for context):

This composition ensures comprehensive stakeholder representation for robust standardization in plywood products.