Specification and safety requirements for high chairs

IS 6188: Scope & Key Specifications

• Scope (Clause 10.1 & 3.7):
  Covers general requirements for wooden bedside tables, including materials, dimensions, finishes, and purchaser-supplier agreements. Appendix A details purchaser-supplied information.

• Rounding Off (Clause 3.7):
  Final test or analysis values must be rounded per IS 2:1960, maintaining the same significant figures as specified.

• Paints & Finishes (Clause 3.9):
  Use paints, enamels, polish, and varnishes conforming to relevant Indian Standards for both air-drying and stoving finishes.

• Dimensions & Tolerances (Clause 4.3):
  Wooden bedside tables must be rectangular with a tolerance of ±5 mm on diagonal measurements.

Summary Table: Dimensional Tolerance for Bedside Table

Notes:

• Moisture content, timber classification, adhesives, and preservation follow respective IS standards referenced in the code.
• Purchaser and supplier must agree on specific requirements as per Clause 3.7 and Appendix A.

flowchart LR
    A[Purchaser Requirements] --> B[Supplier Agreement]
    B --> C[Material Selection]
    C --> D[Manufacturing]
    D --> E[Dimensional Check (±5mm)]
    E --> F[Finishing (IS Paints)]
    F --> G[Final Product]

This ensures compliance with IS 6188 scope and specifications.

IS 6188 - Definitions Summary

• Reference Standard: Definitions in IS 6188 refer to IS 4415-1974 (Specification for veneered decorative plywood).

• Key Definition:

  • Wooden bedside table: Must be rectangular on all measurable surfaces with a tolerance of ±5 mm between the two diagonals (Clause 4.3).

• Purchaser’s Information to Supplier (Clause 1.1):

  • Type and size of bedside table.
  • Finish required (painted, polished, waxed).
  • Alternative construction or finish methods, if any.

• Rounding Off Values (Clause 3.7):

  • Follow IS 2-1960 rules for rounding numerical values.
  • Retain significant places equal to the specified value.

Summary Table: Rectangularity Tolerance

Notes:

• For detailed timber specifications, moisture content, adhesives, and preservation, refer to related IS codes cited in IS 6188.
• Ensure purchaser-supplier agreement on specifications as per Clause 3.7.

flowchart TD
    A[Purchaser] -->|Supply info| B[Supplier]
    B --> C{Wooden Bedside Table}
    C --> D[Rectangular surfaces]
    D --> E[Diagonal difference ±5 mm]
    A --> F[Finish type]
    A --> G[Construction method]

This ensures clarity in definitions and specifications per IS 6188.

IS 6188 - Materials for Tables: Key Points

1. Solid Wood Components (Clause 3.5)

• Use timber species recommended in IS 399:1963 (Furniture & Cabinet Making).
• Timber must be seasoned with moisture content per IS 287:1973 (varies by climatic zone).
• Wood specifications to conform to IS 1331:1977 (Wood - Classification and Grading).
• Preservative treatment for concealed parts of non-durable wood & sapwood of durable wood as per IS 401:1982.

2. Paints & Finishes (Clause 3.9)

• Paints, enamels, polish, varnish must comply with relevant IS standards for:
  • Air-drying finishes
  • Stoving finishes

3. Testing Standards

• Strength Test (Clause 7.1.1): IS 5967 (Part 1)-1988
• Stability Test (Clause 7.1.2): IS 5967 (Part 2)-1988

Useful Reference Table: Moisture Content Limits (IS 287:1973)

Summary Diagram: Material Flow for Table Components

flowchart LR
    A[Timber Selection] --> B[Seasoning per IS 287]
    B --> C[Grading per IS 1331]
    C --> D[Preservative Treatment (IS 401)]
    D --> E[Manufacture]
    E --> F[Strength & Stability Tests (IS 5967)]
    E --> G[Finishing (Paints/Polish per IS standards)]

Note: Always refer to the latest editions of IS codes for detailed specifications.

IS 6188: Dimensions and Tolerances for Wooden Bedside Tables

• Overall Dimensional Tolerance: ± 5 mm on all specified dimensions (Clause 4.2).
• Rectangularity Tolerance: The difference between the two diagonals of the bedside table rectangle shall not exceed ± 5 mm (Clause 4.3).

Key Specifications:

Ordering Information (Clause 1.1):

• Type and size of bedside table.
• Finish required (painted, polished, waxed).
• Alternative construction or finish methods if any.

Summary Diagram of Tolerance Check:

graph LR
A[Bedside Table] --> B[Measure Length (L)]
A --> C[Measure Width (W)]
A --> D[Measure Diagonal 1 (d1)]
A --> E[Measure Diagonal 2 (d2)]
D -- Difference <= ±5 mm --> F[Rectangularity OK]
B & C -- Dimensions ±5 mm --> G[Dimensional Accuracy OK]

This ensures the bedside table meets IS 6188 dimensional quality standards.

IS 6188: Construction of Wooden Bedside Tables – Key Points

1. Strength & Stability Testing

• Strength: Test as per IS 5967 (Part 1)-1988 (Test Level 1). Tables must show no defects after testing.
• Stability: Test as per IS 5967 (Part 2)-1988 to ensure no tipping or instability.

2. Dimensional Specifications

• Tables must be rectangular on all measurable surfaces.
• Tolerance on diagonal measurements: ±5 mm.

3. Material Specifications

• Use veneered decorative plywood as per relevant IS standards.
• Timber must comply with:
  • Classification & zonal distribution of commercial timber.
  • Maximum permissible moisture content (as per IS recommendations).
  • Cut sizes and preservation codes.
• Adhesives: Use IS-approved glues like cold-setting casein glue, animal glue, or polyvinyl acetate dispersion adhesives.

4. Finishes

• Paints, enamels, polish, and varnish must conform to relevant IS standards for air-drying or stoving finishes.

Summary Table: Dimensional Tolerance

flowchart TD
    A[Wooden Bedside Table] --> B[Material Selection]
    B --> C[Timber Classification & Moisture Control]
    B --> D[Adhesives (IS Approved)]
    A --> E[Dimensional Checks]
    E --> F[Rectangular Shape]
    E --> G[Diagonal Tolerance ±5mm]
    A --> H[Testing]
    H --> I[Strength (IS 5967 Part 1)]
    H --> J[Stability (IS 5967 Part 2)]
    A --> K[Finishing]
    K --> L[Paints/Polish as per IS Standards]

This ensures durable, stable, and quality bedside tables per IS 6188.

IS 6188: Assembly Key Points & Specifications

• Assembly Method (Clause 6.1):

  • Components joined by glue + screws under pressure.
  • Drill a pilot hole before driving screws.
  • Dip screws in glue before insertion for enhanced bonding.

• Knocked Down Supply (Clause 10.2):

  • Components supplied for quick assembly on-site.
  • Manufacturer provides complete fixing instructions.
  • Packaged in wooden crates with waterproof wrapping.

• Paint & Finish (Clause 3.9):

  • Use paints, enamels, polish, varnish conforming to relevant IS standards.

• Dimensional Tolerances (Clause 4.2):

  • Overall dimensions tolerance: ± 5 mm.

Assembly Process Summary

flowchart TD
    A[Wood Components] --> B[Drill Pilot Hole]
    B --> C[Apply Glue on Screw]
    C --> D[Drive Screw Under Pressure]
    D --> E[Secure Assembly]

This ensures strong, stable joints as per IS 6188 requirements.

IS 6188 - Strength and Stability Tests for Tables

Key Points from Clauses:

• Strength Test (Clause 7.1.1):
  Conducted as per IS 5967 (Part 1)-1988 (Test Level 1).

  • Tables must show no defects after the test.

• Stability Test (Clause 7.1.2):
  Performed according to IS 5967 (Part 2)-1988.

  • Ensures the table does not tip or wobble under specified loads.

• Assembly (Clause 6.1):

  • Components fixed with glue and screws under pressure.
  • Pilot holes must be drilled before screwing.
  • Screws dipped in glue before insertion for better bonding.

Typical Test Parameters (from IS 5967):

Summary Diagram:

flowchart TD
    A[Assemble Table] --> B[Strength Test (IS 5967 Part 1)]
    B --> C{No Defects?}
    C -- Yes --> D[Stability Test (IS 5967 Part 2)]
    C -- No --> E[Reject Table]
    D --> F{Stable?}
    F -- Yes --> G[Table Passes]
    F -- No --> E

Ensure compliance with IS 5967 for detailed load values and test setups.

IS 6188 - Finishing Key Points

1. Finishing Standards (Clause 8.1)

• Finishing must comply with IS 2338 (Part 1) - 1967.
• Use of clear lacquer, melamine resin, or polyurethane paints should follow manufacturer’s instructions.

2. Performance Requirements (Clause 3.9)

• Paints, enamels, polish, varnish must conform to relevant IS standards for:
  • Air-drying finishes
  • Stoving finishes

3. Surface Resistance Tests

4. Additional Test Methods for Clear Finishes

• Dry Heat Resistance - Part 1
• Wet Heat Resistance - Part 2
• Marking by Oils and Fats - Part 3
• Marking by Liquids - Part 4
• Mechanical Damage Resistance - Part 6

Summary Diagram of Finishing Requirements

graph TD
    A[Finishing IS 6188] --> B[IS 2338 (Part 1) - 1967]
    A --> C[Paints & Varnishes per relevant IS]
    A --> D[Surface Resistance Tests]
    D --> E[Marking by Liquids - IS 5807 (Part 4)]
    D --> F[Mechanical Damage - IS 5807 (Part 6)]
    A --> G[Clear Finish Tests]
    G --> H[Dry Heat (Part 1)]
    G --> I[Wet Heat (Part 2)]
    G --> J[Oils & Fats (Part 3)]
    G --> K[Liquids (Part 4)]
    G --> L[Mechanical Damage (Part 6)]

Ensure all finishes meet these standards for durability and performance.

IS 6188: Performance Requirements of Finish

Key Specifications & References:

• Finishing Standard: IS 2338 (Part 1)-1967
• Paint Types: Clear lacquer, melamine resin paints, polyurethane paints (apply per manufacturer's instructions).

Performance Requirements (Clause 9):

• Paints & Finishes: Must conform to relevant IS standards for both air-drying and stoving finishes (Clause 3.9).

Resistance Tests & Ratings:

Additional Test Methods for Clear Finishes:

• Part 1: Resistance to dry heat
• Part 2: Resistance to wet heat
• Part 3: Resistance to marking by oils and fats
• Part 4: Resistance to marking by liquids
• Part 6: Resistance to mechanical damage

Summary:

• Use finishes per IS 2338 (Part 1).
• Paints must meet IS standards for durability.
• Surfaces must pass IS 5807 tests for liquid marking and mechanical damage with specified minimum ratings.

flowchart LR
    A[Finish Application] --> B[IS 2338 (Part 1)-1967]
    B --> C{Performance Tests}
    C --> D[Resistance to Liquids (IS 5807 Part 4)]
    C --> E[Resistance to Mechanical Damage (IS 5807 Part 6)]
    D --> F[Min Rating ≥ 8]
    E --> G[Rating per Clause 5.3]

IS 6188: Additional Requirements for ECO Mark

The ECO Mark certification requires compliance with specific standards for wood-based panels:

• Particle Board: Must meet IS 3087:1985 requirements for ECO Mark (Clause 3.1).
• Medium Density Fibreboard (MDF): Must conform to IS 12406:1988 for ECO Mark (Clause 3.6).
• Plywood: Must satisfy IS 303:1989 ECO Mark specifications (Clause 3.4.1).

Key Points:

• The product must meet all relevant ECO Mark clauses in IS 6188.
• Documentary evidence (certificate/declaration) must be submitted to BIS.
• ECO Mark standards focus on environmental safety, formaldehyde limits, and quality parameters.

Summary Table of ECO Mark Standards:

Ensure to cross-check these standards for detailed test methods and limits when applying for ECO Mark certification.

IS 6188 - Marking: Key Points and Specifications

1. Resistance to Surface Marking (Clauses 9.4 & 9.5)

• By Oils and Fats: Surface must meet requirements of IS 5807 (Part 3)-1971, clauses 5 & 6.
• By Liquids: Surface tested per IS 5807 (Part 4)-1975, minimum average rating = 8.

2. Standard Marking (Clause 11.1.1)

• Bedside tables may carry the BIS Standard Mark.
• The Standard Mark certifies compliance with IS 6188 under BIS supervision.
• Use of the Standard Mark follows the BIS Act 1986 and related rules.
• Continuous conformity checks are done by BIS.

3. Paints and Finishes (Clause 3.9)

• Paints, enamels, polishes, varnishes must conform to relevant IS standards for air-drying or stoving finishes.

Summary Table: Surface Resistance Ratings (IS 5807 Part 4)

Marking Flow (Simplified)

flowchart LR
    A[Manufacture of Table] --> B[Surface Treatment]
    B --> C[Testing Surface Resistance]
    C -->|Pass| D[Apply Standard Mark (optional)]
    C -->|Fail| E[Rework Surface]
    D --> F[Quality Control & Inspection by BIS]

Note: For detailed test procedures, refer to IS 5807 Parts 3 & 4.

IS 6188: Information to be Supplied by the Purchaser (Appendix A, Clause 1.1)

The purchaser must provide the following details to the supplier when placing an order for bedside tables:

• Type and size of the bedside table required.
• Finish required: painted, polished, waxed, or other specified finishes.
• If alternative construction or finish methods are acceptable, these must be clearly specified.

Additional Notes:

• If tables are to be supplied in knocked down condition (Clause 10.2), the purchaser should specify this. The manufacturer will then supply components for easy assembly with instructions and pack them suitably.
• Final test or analysis values should be rounded off as per IS 2-1960 rounding rules, maintaining the same significant figures as the specified values.

Summary Table: Purchaser's Information Checklist

flowchart TD
    A[Purchaser] --> B[Provide Type & Size]
    A --> C[Specify Finish]
    A --> D{Alternative Methods?}
    D -- Yes --> E[Specify Method]
    D -- No --> F[Proceed]
    A --> G{Knocked Down Supply?}
    G -- Yes --> H[Request Components & Instructions]
    G -- No --> I[Standard Supply]

This ensures clarity, quality, and smooth procurement aligned with IS 6188.