equipment for determination of shrinkage factors

IS 10077: Scope - Key Specifications & Tables

1. Materials of Construction (Clause 3.1 & Table 1)

Note: Acrylic plastic IS is under preparation.

2. Dimensions & Tolerances (Clause 2.1)

• Dimensions as per Figures 1 to 6 and Clause 4.6.
• Tolerances per IS: 2102-1969 unless otherwise specified.

3. Other Accessories (Clause 4.7)

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

4. Rounding Off (Clause 0.4)

• Follow IS: 2-1960 for rounding off test results.
• Maintain significant figures as per specified values.

This summary covers the scope regarding materials, construction, dimensions, and accessories per IS 10077. For detailed dimensions, refer to the respective figures and IS codes mentioned.

IS 10077: Dimensions and Tolerances Key Points

• Nominal Dimensions & Tolerances:
  Unless otherwise specified, all dimensions are nominal and tolerances follow IS 2102-1969 for allowable deviations.

• Plain Plate (Clause 4.6 & Fig. 6):

  • Size: 75 mm × 75 mm square
  • Thickness: 3 mm
  • Surface: Plain

• Other Accessories (Clause 4.7):

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

• Rounding Off (Clause 0.4):

  • Follow IS 2-1960 rules for rounding test results.
  • Retain the same number of significant digits as specified values.

Summary Table: Plain Plate Dimensions

Notes:

• For unspecified tolerances, refer to IS 2102-1969 (Allowable deviations for dimensions without specified tolerances).
• Accessories must comply with their respective IS standards.

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

This concise summary ensures compliance with IS 10077 dimensional and tolerance requirements.

IS 10077 - Materials for Equipment Construction

Key Materials & Specifications (Table 1 Summary)

Notes:

• Stainless steel grade 07Gr18Ni9 corresponds to austenitic stainless steel with 18% Cr, 9% Ni.
• Acrylic plastic IS specification is under preparation.
• Polished steel and painted wood ensure durability and usability.

Summary

• Use porcelain for evaporating dishes (IS: 2837).
• Use stainless steel (07Gr18Ni9) for shrinkage dishes (IS: 6911).
• Use steel (polished) for spatula blades (IS: 2507).
• Use wood (painted) for spatula handles (IS: 620).
• Brass or stainless steel prongs as per IS 319 and IS 6911.
• Acrylic plastic plates are specified but IS code is pending.

flowchart TD
    A[Equipment] --> B[Material]
    B --> C{Type}
    C -->|Evaporating dish| D[Porcelain (IS:2837)]
    C -->|Spatula blade| E[Steel (

IS 10077: Key Construction Specifications

1. Materials of Construction (Clause 3.1, Table 1)

Note: Acrylic plastic IS is under preparation.

2. Dimensions & Tolerances (Clause 2.1)

• Dimensions as per Figures 1 to 6 and Clause 4.6.
• Tolerances follow IS: 2102-1969 unless otherwise specified.
• Nominal dimensions apply where no tolerance is mentioned.

Summary Diagram of Material Selection

graph TD
  A[Equipment Part] -->|Evaporating dish| B[Porcelain (IS:2837)]
  A -->|Spatula blade| C[Steel Polished (IS:2507)]
  A -->|Spatula handle| D[Wood Painted (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 under prep.)]
  A -->|Glass cup| H[Glass (IS:878)]

IS 10077 - Evaporating Dish Summary

Key Specifications (Clause 4.1 & Fig. 1)

• Material: Porcelain (IS: 2837 Part II - 1977)
• Surface: Inside must be smooth, free of imperfections.
• Dimensions: As per Fig. 1 (all in mm, see IS 10077 Fig. 1 for exact sizes)
• Shape: Typical basin shape with smooth internal surfaces for uniform evaporation.

Materials (Clause 3.1, Table 1)

Important Notes

• Porcelain ensures chemical resistance and thermal stability.
• Smooth internal surface aids in uniform evaporation and easy cleaning.
• Refer to Fig. 1 in IS 10077 for exact dimensional details.

Typical Evaporating Dish Dimensions (Example from IS 10077 Fig. 1)

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

For precise design and use, always refer to IS 10077 Fig. 1 and material standards.

IS 10077 - Spatula Specifications & Materials

1. Spatula Construction (Clause 4.2, Fig. 2)

• Blade: Steel, polished finish.
• Handle: Wooden, painted.
• The wooden handle is fixed as shown in Fig. 2 (dimensions given in mm).

2. Materials (Clause 3.1, Table 1)

3. Key Points:

• Steel blade ensures durability and corrosion resistance.
• Painted wooden handle provides grip and insulation.
• Dimensions are standardized as per Fig. 2 (refer IS 10077 for exact mm values).

Summary Diagram of Spatula Components

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

Note: For exact dimensions, refer to Fig. 2 in IS 10077. The blade and handle materials must comply with the mentioned IS standards for quality and safety.

IS 10077 - Shrinkage Dish Specifications

• Shrinkage Dish (Clause 4.3 & Fig. 3):
  • The dish is a container used for determining shrinkage factors in cement paste.
  • Internal corner radius: Smooth concave curve with radius ≈ 3 mm between bottom and vertical sides.
  • Dimensions (from Fig. 3, typical values):
    • Diameter: ~70 mm
    • Height: ~20 mm
  • Material: Non-absorbent, chemically inert (usually glass or stainless steel).

Key Points:

• The 3 mm radius avoids sharp corners, preventing stress concentration and ensuring uniform shrinkage measurement.
• The dish must be smooth and clean for accurate volume measurement.

Typical Use:

• Fill dish with cement paste.
• Allow setting and drying.
• Measure volume change to calculate shrinkage factor.

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

For detailed dimensions, refer to Fig. 3 in IS 10077.

IS 10077 - Glass Cup Key Details

Material & Specification

• Material: Glass
• Relevant IS Code: IS 878 - 1975 (Specification for graduated measuring cylinders)
• Special Requirement: As per IS 878, ensuring chemical resistance and dimensional accuracy.

Dimensions (from Fig. 4 - Glass Cup)

• Dimensions are standardized in millimeters (exact dimensions should be referred from Fig. 4 in IS 10077).
• Typical glass cups used in lab apparatus have:
  • Height: ~50-60 mm
  • Diameter: ~40-50 mm

Construction & Usage

• Glass cup must be clear, free from cracks or bubbles.
• Used for precise measurement or holding liquids in lab tests.
• Should conform to dimensional tolerances specified in IS 878.

Summary Table

Diagram (Conceptual)

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

For exact dimensions, refer to Fig. 4 in IS 10077.

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

• Prong Plate (Fig. 5):

  • Plate: Plain, 75 mm × 75 mm, thickness 3 mm.
  • Prongs: Three prongs fixed to the plate at 120° apart.
  • Prong spacing: 30 mm center-to-center.
  • Purpose: Used for specific soil or material testing (e.g., shrinkage).

• Plain Plate (Fig. 6):

  • Size: 75 mm square, thickness 3 mm.
  • Surface: Plain, no prongs.

Summary Table

Additional Accessories (Clause 4.7)

• Straight Edge: 150 mm long, 25 mm wide (IS 2220-1962).
• Measuring Cylinder: 25 ml capacity (IS 878-1975).

graph TD
  A[Prong Plate] --> B[Plate: 75x75x3 mm]
  A --> C[3 Prongs @ 120°]
  C --> D[Prong spacing: 30 mm]

This ensures uniformity and precision in testing setups per IS 10077.

IS 10077 - Other Accessories: Key Specifications

Accessories as per Clause 4.7:

• Straight Edge

  • Length: 150 mm
  • Width: 25 mm
  • Standard: IS 2220-1962 (Steel straight edges)

• Measuring Cylinder

  • Capacity: 25 ml
  • Standard: IS 878-1975 (Graduated measuring cylinders)

Materials (From Table 1, Clause 3.1):

Dimensional Tolerances:

• Follow IS 2102-1969 for nominal dimensions and tolerances unless otherwise specified.

Summary Diagram: Equipment & 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[IS 2220-1962]
  C --> G[Capacity: 25 ml]
  C --> H[IS 878-1975]

For detailed construction and material specs, refer to IS 10077 Clauses 3.1 and 4.7, and related IS codes mentioned above.

IS 10077 - Marking Requirements (Clause 5.1 & 5.1.1)

Key Marking Specifications:

• Mandatory Marking:

  • Manufacturer's name or registered trademark
  • Date of manufacture
  • Type of material used

• Optional Marking:

  • ISI Certification Mark (subject to ISI licensing and inspection rules)

ISI Certification Mark:

• Indicates compliance with the Indian Standard.
• Ensures product quality via inspection, testing, and continuous surveillance by ISI.
• Use governed by Indian Standards Institution (Certification Marks) Act.

Related Equipment Accessories (Clause 4.7):

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

Summary Table for Marking

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

This ensures traceability, quality assurance, and compliance with IS 10077.

Rounding Off Numerical Values as per IS 10077

• Reference Standard: IS 2-1960 (Rules for rounding off numerical values).
• Key Rule: Final values (observed or calculated) must be rounded off to the same number of significant figures as the specified value in the standard.
• Purpose: Ensures consistency and compliance when interpreting test or analysis results.
• Example:
  • If a specified dimension is 12.5 mm (3 significant figures), a calculated value of 12.5432 mm should be rounded to 12.5 mm.
• Tolerances:
  • If not specified, nominal dimensions use tolerances from IS 2102-1969.
• Additional Notes:
  • Dimensions and tolerances detailed in Figures 1-6 and clause 4.6.
  • Accessories like straight edges and measuring cylinders must comply with IS 2220-1962 and IS 878-1975 respectively.

Summary Table for Rounding Off (from IS 2-1960)

flowchart TD
    A[Measured/Calculated Value] --> B{Check Specified Value's Significant Figures}
    B -->|Same number| C[Round off to that number of significant figures]
    C --> D[Final value for compliance check]

In brief: Always round test results to match the significant figures of the standard's specified values, following IS 2-1960 rules for consistency and accuracy.