wooden tables for office use

IS 11679: Scope Summary & Key Specifications

• Scope: Specifies requirements for wooden tables for office use, ensuring quality, safety, and dimensional standards.

• Marking (Clause 11.1.1):

  • Tables may bear the ISI Certification Mark.
  • ISI mark ensures compliance with Indian Standards, quality control, and continuous inspection.

• Units (SI Units) used in the standard:

• Rounding off results (Clause 0.3):
  Test results should be rounded per IS 2:1960, maintaining the same significant figures as specified.

• Sampling & Testing (Clause 6.1):
  Conducted as per IS 5967:1969.

Summary Diagram of Scope Elements

graph TD
  A[IS 11679 Scope] --> B[Wooden Tables for Office Use]
  A --> C[Marking: ISI Certification]
  A --> D[SI Units for Measurements]
  A --> E[Sampling & Testing per IS 5967]
  A --> F[Rounding off per IS 2]

This covers the fundamental scope, units, marking, and testing references for IS 11679.

IS 11679 - Materials: Key Specifications & Tests for Wooden Tables

1. Material Standards & Marking

• Wooden tables must comply with ISI Certification for quality assurance.
• Sampling & testing per IS 5967:1969 (Dimensions, joints, surface finish).

2. Surface Finish Tests (IS 5807 Series)

3. Physical & Mechanical Requirements

• No distortion, loosening, oxidation (IS 5967:1969).
• Glue adhesion: strong resistance to separation; laminate must be level without waviness (IS 1734 Part 5:1983).

4. Dimensions & Ergonomics

• Height and knee space per IS 3663:1981.

Summary Table: Material Requirements

This ensures wooden tables meet durability, safety, and ergonomic standards per IS 11679.

IS 11679 (Specification for Wooden Tables for Office Use) provides the following key points on Dimensions and Tolerances:

Dimensions and Tolerances (Clause 8.2.1b)

• Dimensions and tolerances are part of the type tests to ensure compliance with the standard.
• Exact dimensional limits and tolerance values are not explicitly detailed in the provided context.
• Final test values must be rounded off as per IS 2:1960, maintaining the same significant figures as specified.

General Guidance (from IS 11679 and IS practices)

• Typical tolerances for wooden furniture dimensions usually range ±1 to 3 mm depending on the size and function.
• Dimensional checks include length, width, height, thickness of components.
• Tolerances ensure interchangeability and proper fit of parts.

Units and Measurement

• All dimensions are expressed in SI units (metres, millimetres).
• Pressure, force, and other physical quantities related to mechanical tests use SI units like N (newton), Pa (pascal).

Summary Table: Common Tolerances for Wooden Tables (Typical values)

Note:

For exact tolerances, consult the full IS 11679 document or related furniture standards. The ISI mark ensures compliance with these quality norms.

flowchart TD
    A[Wooden Table] --> B[Dimensions Check]
    B --> C{Within Tolerance?}
    C -->|Yes| D[Pass Test]
    C -->|No| E[Fail Test]
    D --> F[ISI Certification]
    E --> G[Rework or Reject]

In brief: Dimensions and tolerances are critical type tests in IS 11679, measured in SI units, with rounding per IS 2:1960, ensuring quality and interchangeability of wooden office tables.

IS 11679 - Adhesives for Wooden Tables: Key Points

Adhesives Specifications (Clause 2.5)

• Adhesives for joinery must conform to:
  • IS 4835-1979: Polyvinyl acetate dispersion-based adhesives for wood.
  • IS 849-1957: Cold setting casein glue for wood.

Finishing Adhesives (Clause 5.1)

• Surface finishes (wax, French polish, varnish, paint) should follow IS 2338 (Part 1)-1967.
• Clear lacquer, melamine resin paint, or polyurethane paint must be applied per manufacturer's instructions.

Testing (Clause 8.2.2)

• Glue adhesion tests are mandatory as part of acceptance tests.
• Sampling per IS 5967-1969.

Summary Table of Adhesive Standards

Important Notes:

• Adhesive strength and compatibility with wood materials are critical for durability.
• Adhesion tests ensure bond integrity under service conditions.
• Use adhesives as per IS codes to maintain quality and ISI certification.

flowchart TD
    A[Wooden Components] --> B[Adhesive Application]
    B --> C{Adhesive Type}
    C -->|Polyvinyl Acetate| D[IS 4835-1979]
    C -->|Casein Glue| E[IS 849-1957]
    D --> F[Joinery Bond]
    E --> F
    F --> G[Adhesion Test per IS 5967]
    G --> H[Quality Assurance]

For detailed adhesive properties and application methods, refer to IS 4835 and IS 849 directly.

IS 11679: Surface Finish - Key Specifications & Tests

Surface Finish Requirements (Clause 5.1)

• Surface must be waxed, French polished, varnished, or painted.
• Finish application follows IS 2338 (Part 1)-1967.
• Clear lacquer, melamine resin, or polyurethane paints must follow manufacturer's instructions.

Tests for Surface Finish (Clause 5.3)

Additional Notes

• Ratings are based on visual inspection and standardized test methods as per IS 5807 parts.
• Surface finish quality ensures durability against heat, moisture, oils, liquids, and mechanical wear.
• Final test results should be rounded as per IS 2-1960.

Summary Table of Surface Finish Test Ratings

flowchart LR
    A[Surface Finish] --> B[Waxed / French Polished / Varnished / Painted]
    B --> C[Tests as per IS 5807]
    C --> D[Dry Heat Resistance

IS 11679: Mechanical and Physical Tests for Wooden Tables

Key Test Categories (Clause 8.2.3 & Table 1)

Important Notes:

• Routine tests (Clause 8.1.3) are done on every table for quality control.
• Type tests include all above tests plus workmanship and dimensional tolerances (Clause 8.2.1).
• ISI Certification Mark ensures compliance with these tests (Clause 11.1.1).

Summary of Mechanical & Physical Test Methods:

Units & Symbols (SI Units Reference)

IS 11679: General Requirements Summary

1. General Requirements (Clause 9.1)

• Wooden tables must comply with specified dimensional, strength, and quality parameters.
• Sampling & testing follow IS 5967:1969.

2. Marking (Clause 11.1.1)

• Tables may bear the ISI Certification Mark indicating compliance with IS standards and quality control.
• ISI mark use is regulated by Indian Standards Institution rules.

3. Units and Symbols (SI Units)

4. Key Specification Reference

• Table 1 (Clause 7.1): Specifies dimensional and material requirements for wooden tables (refer IS 11679 Table 1 for detailed sizes and tolerances).

Quick Notes:

• Sampling & testing per IS 5967:1969 ensures quality.
• ISI mark assures ongoing conformity.
• Use SI units consistently for design and testing.

flowchart TD
    A[Wooden Tables] --> B[General Requirements (Clause 9.1)]
    B --> C[Sampling & Testing (IS 5967:1969)]
    B --> D[Marking (ISI Certification Mark)]
    B --> E[Dimensional & Material Specs (Table 1)]
    E --> F[Conformance to IS 11679]

For detailed dimensions and tolerances, refer to Table 1 of IS 11679.

IS 11679: Testing Procedures for Wooden Tables

Key Testing Clauses & References

• Routine Tests (Clause 8.1.3 & 8.2.3):
  Each table must be checked for workmanship, dimensions, glue adhesion, physical and mechanical integrity.

• Sampling & Testing (Clause 6.1):
  Follow IS 5967-1969 for sampling and testing methods.

Essential Test Requirements (Table 1, Clause 7.1)

Surface Finish Ratings Summary

Additional Notes

• Marking: Tables may carry the ISI Certification Mark per Clause 11.1.1, ensuring quality compliance.
• Units: SI units are used throughout for measurements (e.g., length in meters, force in Newtons).

Summary Diagram of Testing Flow

flowchart TD
    A[Start: Wooden Table Manufacture] --> B[Routine Tests

IS 11679: Packing and Marking - Key Points

Packing (Clause 9.1)

• Wooden tables shall be packed according to usual trade practice.
• No specific formula or dimension is prescribed; packaging should ensure protection during transport.

Marking (Clause 11.1.1)

• Wooden tables may be marked with the ISI Certification Mark.
• The ISI Mark guarantees compliance with IS standards under inspection and quality control by ISI.
• Use of ISI Mark is governed by the Indian Standards Institution (Certification Marks) Act.

Important Notes on Marking:

• ISI Mark indicates continuous quality checks.
• Manufacturer must obtain a license for ISI Mark use.

Summary Table: SI Units Relevant to IS 11679

Additional Related Standards for Surface Finish Tests (Clause 5.3)

• Resistance to dry heat: IS 5807 (Part 1) - Min rating 7
• Resistance to wet heat: IS 5807 (Part 2) - Min rating 7
• Resistance to marking by oils/fats: IS 5807 (Part 3) - Test spots indistinguishable
• Resistance to marking by liquids: IS 5807 (Part 4) - Min rating 8
• Resistance to mechanical damage: IS 5807 (Part 6)

flowchart TD
    A[Wooden Tables] --> B{Packing}
    B -->|Trade Practice| C[Packed for Transport]
    A --> D{Marking}
    D -->|Optional| E[ISI Certification Mark]
    E --> F[Quality Assurance]
    F --> G[Continuous ISI Inspection]

In brief: Pack wooden tables as per trade norms; marking with ISI is optional but recommended for quality assurance. Use IS units for measurements and refer to IS 5807 parts for surface finish testing.

IS 11679: Information to be Supplied by the Purchaser (Clause 10.1)

When placing an order for wooden tables, the purchaser must provide:

• Type, shape, and size of the wooden table
• Colour and finish details

This ensures the supplier can deliver exactly as required.

Additional Relevant Details

• Packing: Wooden tables are packed per usual trade practices (Clause 9.1).
• Marking: Tables may carry the ISI Certification Mark per Clause 11.1.1, indicating compliance with quality and inspection standards by ISI.

SI Units Reference (for any dimensional or material specifications)

Summary Table for Purchaser's Information

flowchart TD
    A[Purchaser] -->|Provide info| B[Supplier]
    B -->|Manufacture| C[Wooden Table]
    C -->|Pack as per trade| D[Delivery]
    D -->|Mark with ISI (optional)| E[Final Product]

Note: For sampling/testing, refer to IS 5967-1969 as per Clause 6.1.

IS 11679: ECO Mark Certification Key Points

• Clause 9.2: Product must meet ECO Mark specific requirements as per relevant clauses.
• Clause 11.2: Manufacturer must declare criteria for ECO Mark labeling.
• Clause 8.2.3 & 9 (Amend No. 2): Additional ECO Mark requirements are specified, including conformity to related standards.
• Clause 2.5 (Amend No. 1): For ECO Mark, Medium Density Fibreboard (MDF) must comply with IS 12406:1988.

Key Specifications for ECO Mark Certification:

Summary Diagram of ECO Mark Certification Process

flowchart TD
    A[Manufacturer] --> B[Product Manufacturing]
    B --> C[Testing as per IS 11679 & IS 12406]
    C --> D[Documentation Preparation]
    D --> E[Submit Certificate/Declaration to BIS]
    E --> F{BIS Review}
    F -->|Approved| G[ECO Mark Label Granted]
    F -->|Rejected| H[Rework & Resubmit]

Note: Refer to IS 12406:1988 for detailed MDF requirements under ECO Mark.