equipment for determination of shrinkage factors
1982 Edition

Overview of IS 10077 Scope - Materials, Dimensions, and Accessories

1. Materials Utilized (Clause 3.1 & Table 1)

Note: Standard for acrylic plastic is under development.

2. Dimensional Requirements & Tolerances (Clause 2.1)

• Dimensions are detailed in Figures 1 through 6 and Clause 4.6.
• Unless noted otherwise, tolerances adhere to IS: 2102-1969.

3. Additional Accessories (Clause 4.7)

• Straight Edge: 150 mm length × 25 mm width (IS: 2220-1962)
• Measuring Cylinder: 25 ml capacity (IS: 878-1975)

4. Rounding Off Protocol (Clause 0.4)

• Rounding of test outcomes follows IS: 2-1960.
• Maintain the number of significant digits consistent with the specified values.

This section summarizes the scope concerning materials, construction, dimensional details, and accessories as per IS 10077. For exact dimensions and additional details, see the referenced figures and Indian Standards.

Highlights from IS 10077 on Dimensions and Tolerances

• Nominal Sizing & Allowable Deviations: Dimensions are nominal unless otherwise specified, with tolerances governed by IS 2102-1969.

• Plain Plate Specifications (Clause 4.6 and Figure 6):

  • Dimensions: Square plate of 75 mm × 75 mm
  • Thickness: 3 mm
  • Surface: Smooth and plain

• Additional Equipment (Clause 4.7):

  • Straight Edge: 150 mm length × 25 mm width (IS 2220-1962)
  • Measuring Cylinder: 25 ml capacity (IS 878-1975)

• Rounding Values (Clause 0.4):

  • Test results should be rounded in compliance with IS 2-1960.
  • Keep consistent significant figures according to the corresponding specified values.

Plain Plate Dimension Summary

Notes

• For all dimensions without explicit tolerance, refer to IS 2102-1969.
• Accessories must meet their respective IS specifications.

flowchart TD
    A[Equipment Dimensions] --> B[Nominal Sizes]
    B --> C[Tolerances as per IS 2102-1969]
    A --> D[Plain Plate]
    D --> E[75 x 75 mm, 3 mm thick]
    A --> F[Accessories]
    F --> G[Straight Edge: 150 x 25 mm (IS 2220)]
    F --> H[Measuring Cylinder: 25 ml (IS 878)]
    A --> I[Rounding Off]
    I --> J[Apply IS 2-1960 Rules]

This summary ensures adherence to IS 10077 dimensional and tolerance standards.

Materials Specification According to IS 10077

Summary of Material Requirements (Refer Table 1)

Notes:

• Stainless steel grade 07Gr18Ni9 corresponds to an austenitic stainless steel with 18% chromium and 9% nickel content.
• Acrylic plastic standards are under development.
• Polished steel blades and painted wooden handles enhance durability and operational comfort.

Key Highlights

• Porcelain is the preferred material for evaporating dishes.
• Shrinkage dishes are fabricated from high-grade stainless steel.
• Spatula blades use polished steel, with wooden painted handles.
• Prongs can be brass or stainless steel depending on the type.
• Acrylic plastic plates are specified but awaiting formal IS code.

flowchart TD
    A[Equipment Components] --> B[Material Types]
    B -->|Evaporating Dish| C[Porcelain (IS 2837)]
    B -->|Spatula Blade| D[Polished Steel (IS 2507)]
    B -->|Spatula Handle| E[Painted Wood (IS 620)]
    B -->|Shrinkage Dish| F[Stainless Steel 07Gr18Ni9 (IS 6911)]
    B -->|Prongs| G[Brass (IS 319) / Stainless Steel (IS 6911)]
    B -->|Plates| H[Acrylic Plastic (IS pending)]
    B -->|Glass Cup| I[Glass (IS 878)]

Fundamental Construction Guidelines from IS 10077

1. Construction Materials (Clause 3.1, Table 1)

Note: Acrylic plastic standards are under preparation.

2. Dimensional and Tolerance Specifications (Clause 2.1)

• Dimensions must conform to Figures 1 through 6 and Clause 4.6.
• Unless otherwise stated, tolerances are as per IS: 2102-1969.
• Nominal dimensions are applicable where specific tolerances are not mentioned.

Material and Equipment Overview Diagram

graph TD
  A[Equipment Component] -->|Evaporating Dish| B[Porcelain (IS 2837)]
  A -->|Spatula Blade| C[Polished Steel (IS 2507)]
  A -->|Spatula Handle| D[Painted Wood (IS 620)]
  A -->|Shrinkage Dish| E[Stainless Steel 07Gr18Ni9 (IS 6911)]
  A -->|Prong Plate Prong| F[Brass (IS 319) / Stainless Steel (IS 6911)]
  A -->|Prong Plate Plate| G[Acrylic Plastic (IS pending)]
  A -->|Glass Cup| H[Glass (IS 878)]

IS 10077 - Evaporating Dish Requirements

Main Features (Clause 4.1 & Figure 1)

• Material: Porcelain compliant with IS: 2837 (Part II) - 1977
• Interior Surface: Must be smooth and free from defects
• Dimensions: Defined in Figure 1 (refer IS 10077 for exact measurements)
• Shape: Basin-shaped with smooth internal surfaces to ensure uniform evaporation

Relevant Materials (Clause 3.1, Table 1)

Notes

• Porcelain offers chemical resistance and thermal stability.
• Smooth internal finish promotes uniform evaporation and ease of cleaning.
• Exact dimensions should be verified from Figure 1 of IS 10077.

Typical Dimensions (from IS 10077 Figure 1)

flowchart TD
    A[Evaporating Dish] --> B[Porcelain Material]
    A --> C[Smooth Interior Surface]
    A --> D[Dimensions as per Figure 1]
    B --> E[Chemical Resistance]
    C --> F[Uniform Evaporation]

Always consult IS 10077 Figure 1 for precise design parameters.

IS 10077 - Spatula Design and Material Requirements

Construction Details (Clause 4.2, Figure 2)

• Blade: Made from polished steel.
• Handle: Fabricated from painted wood.
• The handle is attached as depicted in Figure 2, with measurements given in millimeters.

Material Specifications (Clause 3.1, Table 1)

Important Points

• Polished steel blade provides strength and corrosion resistance.
• Painted wooden handle ensures good grip and insulation.
• Dimensions are standardized and detailed in Figure 2 of IS 10077.

Component Diagram

graph LR
A[Spatula] --> B[Polished Steel Blade]
A --> C[Painted Wooden Handle]

Refer to IS 10077 Figure 2 for exact dimension details. Materials must comply with the specified IS standards.

IS 10077 - Shrinkage Dish Details

• Shrinkage Dish (Clause 4.3 & Figure 3):
  • Used as a container for measuring shrinkage factors in cement paste.
  • Internal corners have a smooth concave radius of approximately 3 mm.
  • Typical dimensions (from Figure 3): diameter ~70 mm, height ~20 mm.
  • Constructed from chemically inert, non-absorbent materials such as glass or stainless steel.

Key Features

• The 3 mm rounded corners prevent stress concentration and promote uniform shrinkage measurement.
• The dish surface must be smooth and clean to allow accurate volume determination.

Typical Procedure

• Pour cement paste into the shrinkage dish.
• Allow the sample to set and dry.
• Measure volumetric changes to compute shrinkage factors.

flowchart TD
    A[Prepare Cement Paste] --> B[Fill Shrinkage Dish]
    B --> C[Allow Setting and Drying]
    C --> D[Measure Volume Change]
    D --> E[Calculate Shrinkage Factor]

Refer to Figure 3 in IS 10077 for precise dimensions.

IS 10077 - Glass Cup Details

Material and Standards

• Made from glass conforming to IS 878-1975 (graduated measuring cylinders).
• Must be chemically resistant and dimensionally accurate as per IS 878.

Dimensions (Figure 4)

• Height typically ranges from 50 to 60 mm.
• Diameter generally between 40 and 50 mm.
• Exact measurements are detailed in Figure 4 of IS 10077.

Usage and Construction

• The glass cup should be transparent, free from defects like bubbles or cracks.
• Used for precise liquid measurement or containment during laboratory tests.
• Must comply with dimensional tolerances outlined in IS 878.

Summary Table

Conceptual Diagram

graph TD
A[Glass Cup] --> B[Material: Glass]
A --> C[Standard: IS 878 - 1975]
A --> D[Dimensions per Figure 4]
D --> E[Height: 50-60 mm]
D --> F[Diameter: 40-50 mm]

Refer to IS 10077 Figure 4 for precise details.

IS 10077 - Prong Plate Specifications (Clauses 4.5 & 4.6)

• Prong Plate (Figure 5):

  • Plate dimensions: 75 mm × 75 mm square with 3 mm thickness.
  • Three prongs fixed at 120° intervals.
  • Prong spacing center-to-center is 30 mm.
  • Used in specialized soil or material tests involving shrinkage.

• Plain Plate (Figure 6):

  • Size: 75 mm square with 3 mm thickness.
  • Surface is smooth and without prongs.

Summary Table

Additional Accessories (Clause 4.7)

• Straight Edge: 150 mm length × 25 mm width (IS 2220-1962).
• Measuring Cylinder: 25 ml capacity (IS 878-1975).

graph TD
  A[Prong Plate] --> B[Plate: 75x75x3 mm]
  A --> C[Three Prongs @ 120°]
  C --> D[Prong Spacing: 30 mm]

This ensures standardization and precision in testing setups as per IS 10077.

IS 10077 - Specifications for Additional Accessories

Accessories Listed in Clause 4.7:

• Straight Edge:

  • Dimensions: 150 mm length × 25 mm width.
  • Must comply with IS 2220-1962 (steel straight edges).

• Measuring Cylinder:

  • Capacity: 25 ml.
  • Must conform to IS 878-1975 (graduated measuring cylinders).

Material Details (Table 1, Clause 3.1):

Dimensional Accuracy:

• Follow tolerances outlined in IS 2102-1969 unless otherwise specified.

Diagram of Accessories

graph TD
  A[Other Accessories] --> B[Straight Edge]
  A --> C[Measuring Cylinder]
  B --> D[Length: 150 mm]
  B --> E[Width: 25 mm]
  B --> F[Standard: IS 2220-1962]
  C --> G[Capacity: 25 ml]
  C --> H[Standard: IS 878-1975]

Refer to IS 10077 Clauses 3.1 and 4.7 and relevant IS standards for detailed specifications.

Marking Guidelines per IS 10077 (Clauses 5.1 & 5.1.1)

Essential Markings:

• Manufacturer's name or registered trademark.
• Manufacturing date.
• Type of material used for the equipment.

Optional Marking:

• ISI Certification Mark, provided the manufacturer holds appropriate licensing and meets inspection criteria.

ISI Mark Details:

• Indicates conformance to Indian Standards.
• Denotes product quality assured by ISI inspection, testing, and surveillance.
• Governed by the Indian Standards Institution (Certification Marks) Act.

Related Accessories:

• Straight Edge: 150 mm × 25 mm (IS 2220-1962)
• Measuring Cylinder: 25 ml (IS 878-1975)

Marking Summary Table

flowchart TD
    A[Equipment] --> B[Mark Manufacturer]
    A --> C[Mark Manufacture Date]
    A --> D[Mark Material Type]
    A --> E{Use ISI Mark?}
    E -->|Yes| F[Apply ISI Logo]
    E -->|No| G[No ISI Mark]

This ensures traceability and quality assurance following IS 10077.

Rounding Rules as per IS 10077

• Reference: IS 2-1960 specifies the rounding off protocol for numerical data.
• Key Principle: Final recorded or computed values must be rounded to maintain the same number of significant figures as the value specified in the standard.
• Purpose: Guarantees consistency and proper interpretation of test results.
• Illustration:
  • For a specified dimension of 12.5 mm (3 significant figures), a measured value of 12.5432 mm should be rounded to 12.5 mm.
• Tolerances:
  • Where not specified, nominal dimensions adhere to tolerances in IS 2102-1969.
• Additional Notes:
  • Dimensions and tolerances detailed in Figures 1-6 and Clause 4.6.
  • Accessories like straight edges and measuring cylinders conform to IS 2220-1962 and IS 878-1975, respectively.

Rounding Off Examples (from IS 2-1960)

flowchart TD
    A[Measured/Calculated Value] --> B{Determine Specified Significant Figures}
    B -->|Match| C[Round to Specified Figures]
    C --> D[Final Value for Compliance]

Summary: Employ IS 2-1960 rounding rules to ensure test results align with the significant figures prescribed by the standard.