marble (blocks, slabs and tiles)

IS 1130: Scope - Key Specifications and Tables

Scope Summary:

IS 1130 covers specifications for marble blocks, slabs, and tiles including sampling, sizes, and quality conformity.

1. Sampling (Clause 10.2, Table 2)

• Use: Determines number of samples for quality testing based on lot size.

2. Sizes of Marble Blocks (Clause 5.1, Table 5)

• Note: Sizes are standardized in steps of 10 cm.

3. Testing Facilities (Clause 11.2)

• Manufacturers must provide facilities for tests as per Table 1 (not provided here).
• Ensures compliance with quality and durability standards.

Summary Diagram

flowchart TD
    A[Lot Size] --> B[Sample Size & Defectives (Table 2)]
    C[Marble Block Dimensions] --> D[Length, Width, Thickness (10 cm steps)]
    E[Manufacturer] --> F[Testing Facilities (Clause 11.2)]

Use IS 1130 sampling and size tables to ensure marble quality and conformity in procurement and testing.

IS 1130 - Key Definitions, Tables, and Specifications

1. Definitions (Clause 2.0)

• Defines terms related to marble blocks, slabs, and tiles for uniform understanding.
• Ensures clarity on material types, sizes, and quality parameters.

2. Sampling (Clause 10.2 & Table 2)

• Sampling size depends on lot size.
• Table 2: Sample Size & Criteria for Conformity

3. Sizes of Marble Blocks (Clause 5.1 & Table 5)

• Standard sizes supplied in increments of 10 cm:
  • Length: 30 to 250 cm
  • Width: 30 to 100 cm
  • Thickness: 30 to 100 cm

Summary

• Sampling ensures quality control by limiting defective units.
• Size specifications provide standardization for manufacturing and usage.
• Manufacturer must facilitate tests as per Table 1 (Clause 11.2).

flowchart TD
    A[Lot Size] --> B[Select Sample Size (Table 2)]
    B --> C{Check Defectives}
    C -- Within Permissible --> D[Accept Lot]
    C -- Exceeds Permissible --> E[Reject Lot]

This concise framework aids quality assurance and standard compliance in marble block supply.

IS 1130: Classification of Marble

1. Types of Marble (Clause A-1.1)

• White Marble
• Coloured Marble

2. White Marble (Clause 2.3)

• Finish: Polished finish is a highly glossy surface enhancing color and character.

3. General Specifications (IS 1130)

• Marble is classified based on color and finish.
• The standard covers blocks, slabs, and tiles.

Key Notes:

Polished Finish:

• Brings out natural colors
• Smooth, glossy surface

Summary Diagram:

flowchart TD
    A[Marble Classification] --> B[White Marble]
    A --> C[Coloured Marble]
    B --> D[Polished Finish]
    C --> D
    D --> E[Glossy Surface Enhances Color]

For detailed physical and chemical properties, refer to full IS 1130 text.

IS 1130: Classification and Types of Marble (Appendix A, Clause 3.2)

Key Points on Types of Marble:

• Marble is a natural product: Uniformity in color, veining, and texture cannot be guaranteed. Samples represent an average appearance only.

• Broad Classification (Clause A-1.1):

  • White Marble
  • Coloured Marble

Specifications Reference:

• IS 1130 refers to Indian Standard Specification for Marble (Blocks, Slabs, and Tiles) for detailed physical and mechanical properties.
• Marble types are primarily distinguished by color and appearance rather than strict mechanical properties.

Typical Properties to Consider (from IS and general practice):

Summary Table of Marble Types:

flowchart TD
    A[Marble] --> B[White Marble]
    A --> C[Coloured Marble]
    B --> D[Pure white, light veins]
    C --> E[Green, Pink, Black, Brown shades]

Note: For design and procurement, always refer to IS 1130 and IS 1124 for detailed technical specs and sampling methods.

IS 1130: Sizes for Marble Blocks and Slabs

Clause 5.1: Marble Blocks Sizes

• Length: 30 cm to 250 cm (in steps of 10 cm)
• Width: 30 cm to 100 cm (in steps of 10 cm)
• Thickness: 30 cm to 100 cm (in steps of 10 cm)

Clause 5.2: Marble Slabs Sizes

• Length: 70 cm to 250 cm (in steps of 10 cm)
• Width: 30 cm to 100 cm (in steps of 10 cm)
• Thickness: 20 mm to 150 mm (in steps of 10 mm)

Clause 5.3.1:

• Sizes other than above can be supplied if mutually agreed.

Clause 6.1.3: Dimensional Tolerances

• Linear dimensions: +4% tolerance
• Thickness: As per Clause 5.3 (agreement-based)

Summary Table of Sizes & Tolerances

This ensures standardization and quality control for marble products as per IS 1130.

IS 1130: Workmanship and Finish - Key Points

Sampling & Defect Criteria (Clause 10.3 & Table 2)

• Sample size depends on lot size; see below:

• Defective: Any block/slab/tile failing in dimension, workmanship, or general requirements.
• Lot is conforming if defectives ≤ permissible number.

Finish Specification (Clause 2.1)

• Sand/Abrasive finish: Flat, non-reflective surface.

Testing Facilities (Clause 11.2)

• Manufacturer must provide facilities for tests as per Table 1 (not detailed here).

Summary:

• Select samples per Table 2.
• Inspect all samples for dimensional accuracy and surface finish.
• Reject lot if defectives exceed permissible limits.
• Ensure surface finish matches specified type (e.g., sand finish = flat, non-reflective).

flowchart TD
    A[Select Lot] --> B[Determine Sample Size (Table 2)]
    B --> C[Inspect Sample for Defects]
    C --> D{Defectives ≤ Permissible?}
    D -- Yes --> E[Lot Accepted]
    D -- No --> F[Lot Rejected]

This ensures quality control in workmanship and finish per IS 1130.

IS 1130: Physical Properties of Marble

Key Specifications (Clause 7.1, Table 1)

Notes:

• Moisture absorption: Marble samples immersed in cold water for 24 hours.
• Hardness: Measured on Mohs scale (1-softest to 10-hardest).
• Specific gravity: Ratio of marble density to water density, indicating compactness.

Sampling & Testing (Clause 10.4)

• Random sub-sample from lot tested.
• Lot accepted if all samples meet above physical property criteria.

Dimensional Tolerance (Clause 6.1.3)

• Linear dimension tolerance: +4%
• Thickness tolerance: Refer Clause 5.3

Summary Diagram of Testing Flow

flowchart TD
    A[Select Marble Lot] --> B[Random Sub-sample]
    B --> C[Test Moisture Absorption]
    B --> D[Test Hardness]
    B --> E[Test Specific Gravity]
    C & D & E --> F{All Tests Passed?}
    F -- Yes --> G[Lot Accepted]
    F -- No --> H[Lot Rejected]

This ensures quality control in procurement and use of marble for construction and decorative purposes.

IS 1130: Surface Finishes for Marble Slabs and Tiles

Key Specifications (Clauses 2 & 8)

Application Notes:

• Choice depends on aesthetic requirements and slip resistance.
• Polished surfaces are visually striking but less slip-resistant.
• Sand/abrasive and hone finishes provide better grip, suitable for flooring.

Summary Table:

flowchart LR
    A[Marble Slabs/Tiles] --> B[Surface Finish]
    B --> C[Sand/Abrasive Finish]
    B --> D[Hone Finish]
    B --> E[Polished Finish]
    C --> F[Matte, Non-reflective]
    D --> G[Velvety Smooth, Low Gloss]
    E --> H[Glossy, Reflective]

Use these finishes as per IS 1130 Clause 8.3 to meet design and safety criteria.

IS 1130 – Marking of Marble Blocks, Slabs, and Tiles

Key Specifications from IS 1130:

• Clause 9.1:
  Each marble product (blocks, slabs, tiles) shall be marked with the manufacturer’s identification mark or initials for traceability.

• Clause 9.1.1:
  Optionally, the product may also bear the Standard Mark indicating conformity to IS 1130.

• Clause 6.1.3 (Dimensional Tolerances):

  • Linear dimensions: ±4% tolerance
  • Thickness: Refer to Clause 5.3 for specific thickness tolerances (typically ± specified mm depending on product type)

Additional Notes:

• Appendix A: Provides grouping of marble types by physical properties (hardness, porosity, etc.), useful for classification but not directly related to marking.

Summary Table for Marking:

flowchart LR
    A[Marble Product] --> B[Mark Manufacturer's ID]
    B --> C{Optional}
    C -->|Yes| D[Mark IS Standard Mark]
    C -->|No| E[No Standard Mark]

Use marking for traceability and quality assurance as per IS 1130.

IS 1130: Sampling and Inspection Key Points

Sampling (Clause 10.2 & Table 2)

Inspection Criteria (Clause 10.3)

• All selected samples are examined for dimensions, workmanship, and general requirements.
• Any sample failing any requirement is defective.
• Lot is accepted if defectives ≤ permissible number (from Table 2).

Additional Notes

• Samples must be selected and tested separately for each lot (Clause 10.1.1).
• Manufacturer must provide testing facilities as per Table 1 (Clause 11.2).

Summary Diagram: Sampling & Inspection Flow

flowchart TD
    A[Select Lot] --> B[Determine Sample Size (Table 2)]
    B --> C[Select Samples]
    C --> D[Examine Samples (Dimensions, Workmanship)]
    D --> E{Defective Samples ≤ Permissible?}
    E -- Yes --> F[Lot Accepted]
    E -- No --> G[Lot Rejected]

This structured approach ensures quality control per IS 1130 requirements.

IS 1130: Certification - Key Specifications and Tables

1. Testing Facilities (Clause 11.2)

   • Manufacturer/supplier must provide facilities for all tests listed in Table 1 (not provided here, but includes strength, dimensional accuracy, water absorption, etc.).

2. Sampling for Certification (Clause 10.2 & Table 2)
   Sampling depends on lot size; the number of samples and permissible defectives are:

3. Certification Process Summary
   • Samples tested as per Table 1 tests.
   • Lot accepted if defectives ≤ permissible number.
   • Sub-samples used for detailed testing.

Visual Summary

flowchart TD
    A[Lot of Blocks/Slabs/Tiles] --> B{Lot Size}
    B -->|Up to 25| C[Sample Size=3, Defectives=0]
    B -->|26-100| D[Sample Size=5, Defectives=0]
    B -->|101-200| E[Sample Size=8, Defectives=0]
    B -->|201-500| F[Sample Size=13, Defectives=0]
    B -->|501-1000| G[Sample Size=20, Defectives=1]
    C & D & E & F & G --> H[Testing as per Table 1]
    H --> I{Defectives ≤ Permissible?}
    I -->|Yes| J[Lot Accepted]
    I -->|No| K[Lot Rejected]

Note: Refer to IS 1130 Table 1 for detailed test requirements and procedures.

IS 1130 – Classification and Description of Marble Types

1. Marble Categories (Clause 1.1, A-1.1)

• White Marble: Pure or nearly pure white marble.
• Coloured Marble: Marble exhibiting various natural colours.

2. Finish Types (Clause 2.3)

• Polished Finish: Highly glossy surface enhancing colour and texture.

3. Grouping (Clause 3.2, Appendix A)

• Marble is broadly grouped into White and Coloured categories.
• Appendix A provides detailed classification based on:
  • Colour shade
  • Texture
  • Grain size
  • Presence of veins or spots

Key Specifications:

Notes:

• Polished finish is preferred for aesthetic applications.
• Classification aids in selecting marble for structural and decorative purposes.

flowchart TD
    A[Marble] --> B[White Marble]
    A --> C[Coloured Marble]
    B --> D[Fine Grain, Pure White]
    C --> E[Various Colours, Patterns]
    D --> F[Flooring, Sculptures]
    E --> G[Decorative Panels, Flooring]

Summary: IS 1130 classifies marble as White or Coloured, with polished finish enhancing appearance. Appendix A details grouping by colour, texture, and grain.