Wooden handles for adzes

IS 2893: Scope — Key Specifications & Tables

Scope:
IS 2893 covers specifications for wooden handles for adzes, ensuring dimensional accuracy, tolerances, and marking for quality control.

Key Tolerances (Clause 6.2)

Handle Dimensions (Clause 1.5) — For Adze Handles (in mm)

Related Standards (Clause 2.1)

• IS 620:1985 — Wooden tool handles (general requirements)
• IS 663:1980 — Specification for adzes

Notes

• All dimensions in millimeters.
• Standard Mark usage governed by BIS regulations.
• Periodic revisions ensure compliance with latest standards.

flowchart LR
    A[IS 2893 Scope] --> B[Tolerances]
    A --> C[Handle Dimensions]
    A --> D[Related IS Codes]
    B --> E[Head fit: +3/-0 mm]
    B --> F[Other places: ±2 mm]
    B --> G[Length: ±5 mm]
    C --> H[Nominal Mass 0.75-1.25 kg]
    C --> I[Nominal Mass 2.00 kg]
    D --> J[IS 620: Wooden Handles]
    D --> K[IS 663: Adzes]

This concise summary provides essential dimensional and tolerance data for wooden adze handles per IS 2893.

IS 2893 References Summary

Key Indian Standards Referenced

• IS 620:1985 — Specification for wooden tool handles (general requirements)
• IS 663:1980 — Specification for adzes

Dimensional Specifications (Clause 1.5, Table for Adze Handles)

Tolerances (Clause 6.2)

• Head fitting area: +3 mm / -0 mm
• Other places: ±2 mm
• Length: ±5 mm

Additional Notes

• Use IS 620 definitions for terms related to wooden handles.
• The Standard Mark ensures compliance, quality control, and BIS supervision.
• For updates or amendments, contact BIS (Doc No. CED 33 (5022)).

flowchart LR
    A[IS 2893] --> B[IS 620:1985 Wooden Handles]
    A --> C[IS 663:1980 Adzes]
    B --> D[Definitions & General Requirements]
    C --> E[Adze Specifications]
    A --> F[Dimensional Tables & Tolerances]

This concise reference helps ensure correct handle dimensions, tolerances, and related standards compliance for adzes per IS 2893.

IS 2893: Definitions & Key Specifications Summary

• Definitions: As per Clause 3.1, all definitions follow IS 620:1985 (Specification for wooden tool handles).

• Dimensions & Marking (Clause 1.5):

  • All dimensions in millimetres (mm).
  • Example: Handle for Adze (Type A) for different nominal masses:

• Tolerances (Clause 6.2):

• Related Standards (Clause 2.1):
  • IS 620:1985 — Wooden tool handles
  • IS 663:1980 — Adzes specification

Notes:

• Use IS 620:1985 for all handle-related definitions and quality requirements.
• Dimensions and tolerances ensure interchangeability and proper fit.
• Standard Mark usage is regulated by BIS under the Bureau of Indian Standards Act, 1986.

flowchart LR
    A[IS 2893 Definitions] --> B[Refer IS 620:1985]
    B --> C[Wooden Tool Handles]
    A --> D[Handle Dimensions & Marking]
    D --> E[Nominal Mass vs Dimensions Table]
    A --> F[Tolerances]
    F --> G[+3/-0 mm at head fit]
    F --> H[±2 mm other places]
    F --> I[±5 mm length]

This concise summary provides the essential definitions,

IS 2893 - Materials: Key Specifications & Tables

1. Materials & Dimensions for Adze Handles (Clause 1.5)

• Dimensions are in millimetres (mm)
• Two types of handles specified: Type A and Type B
• Example for Type A Handle (Adze nominal mass 0.75 to 1.25 kg):

2. Tolerances (Clause 6.2)

• Where the head fits: +3 mm / -0 mm
• Other places: ±2 mm
• Length: ±5 mm

3. Material Standards & Quality (Clauses 2.1, 7.1)

• Refer to:
  • IS 620:1985 – Wooden tool handles, workmanship, permissible defects, tests, treatment
  • IS 663:1980 – Specification for adzes
• Workmanship, finish, and sampling as per IS 620:1985

Summary:

• Use IS 620:1985 for handle material quality and finish.
• Follow dimensional tables for handle sizing.
• Maintain tolerances as per Clause 6.2.
• Ensure compliance with BIS marking and quality controls.

flowchart TD
    A[Start: Select Adze Mass] --> B{Mass ≤ 1.25 kg?}
    B -- Yes --> C[Use Type A Handle Dimensions]
    B -- No --> D[Use Type B Handle Dimensions]
    C --> E[Check Tolerances: +3/-0 mm at head fit]
    D --> E
    E --> F[Refer IS 620 for Material & Finish

IS 2893: Manufacture and Treatment Key Points

1. Workmanship & Finish (Clause 7.1)

• Follow IS 620:1985 for workmanship, permissible defects, tests, treatment, and sampling.

2. Handle Treatment (Clause 5.2)

• Treatment of handles as per IS 620:1985, Clause 5.1.1 (usually involves seasoning, preservation, and finishing).

3. Dimensions & Tolerances (Clause 6.2)

4. Handle Dimensions for Adze (Clause 1.5)

Summary:

• Manufacture: Follow IS 620:1985 for quality and treatment.
• Tolerances: Critical for tool fit and length.
• Handles: Dimensions vary by nominal mass; treatment ensures durability.

For detailed treatment methods and tests, refer directly to IS 620:1985.

IS 2893 - Dimensions and Tolerances Summary

1. Tolerances (Clause 6.2)

2. Handle Dimensions (Clause 6.1 & Fig. 1 & 2)

• Dimensions are in millimeters.
• Handles must conform to these sizes for proper fit and usability.

3. Additional Notes

• Handles treatment as per IS 620:1985 (Clause 5.2).
• All dimensions and tolerances ensure interchangeability and quality control.

Visual Summary (Handle Dimensions)

graph LR
A[Nominal Mass] -->|0.75,1.00,1.25 kg| D1[Dimensions: A=430, B=70, C=13, D=1.5, E=25, F=24, G=19]
A -->|2.00 kg| D2[Dimensions: A=480, B=90, C=13, D=3, E=32, F=30, G=25]

Use these tolerances and dimensions for manufacturing and inspection of tool handles as per IS 2893.

IS 2893 - Other Requirements (Clause 7) Summary

1. Tolerances (Clause 6.2)

• Tool head fit: +3 mm / -0 mm
• Other places: ± 2 mm
• Length: ± 5 mm

2. Referenced Standards (Clause 2.1)

• IS 620:1985 — Wooden tool handles specification
• IS 663:1980 — Adzes specification

3. Handle Dimensions for Adzes (Clause 1.5, Tables & Figures)

• Handles are designed per IS 620:1985 for quality and compatibility.

4. Marking & Quality Assurance

• Standard Mark usage governed by BIS Act 1986
• Continuous quality inspection by BIS ensures compliance

Visual Summary of Tolerances

graph TD
    A[Tool Head Fit] -->|+3 mm / -0 mm| Tolerance1
    B[Other Places] -->|± 2 mm| Tolerance2
    C[Length] -->|± 5 mm| Tolerance3

Use these key points to ensure compliance with IS 2893 "Other Requirements" related to tool handles and adzes.

IS 2893 Sampling and Criteria for Conformity

• Reference Standard: Sampling and conformity criteria are governed by IS 620:1985 (as per Clauses 7.1 and 8.1 of IS 2893).

• Sampling Method: Representative samples must be drawn following the procedures in IS 620:1985, which details:

  • Sampling plans (e.g., random or systematic)
  • Sample size determination based on lot size and inspection level
  • Acceptance criteria based on quality levels

• Criteria for Conformity:

  • Products must meet specified dimensional tolerances (see Table 6.2 in IS 2893):

    Location	Tolerance
    Head of tools fit	+3 mm / -0 mm
    Other places	±2 mm
    Length	±5 mm

• Workmanship & Defects: Permissible defects, tests, and treatments are as per IS 620:1985. Ensure conformity by visual inspection and testing protocols defined therein.

Summary Table: Tolerances (IS 2893 Clause 6.2)

Note:

For detailed sampling plans, acceptance numbers, and quality levels, consult IS 620:1985 directly, as IS 2893 defers to it for these specifics.

flowchart TD
    A[Lot of Products] --> B[Sampling as per IS 620]
    B --> C{Sample meets criteria?}
    C -- Yes --> D[Accept Lot]
    C -- No --> E[Reject Lot or Re-inspect]

This ensures quality control via statistically valid sampling and acceptance criteria.

IS 2893: Marking Specifications for Adze Handles

Key Marking Details (Clause 9.1)

• Each handle must be legibly and indelibly marked with:
  • Manufacturer's name, initials, or trademark
  • Year of manufacture
  • Type and size of adze handle as per the table:

• Optional: Standard Mark may also be applied (Clause 9.1.1).

Dimensions for Handles (Clause 1.5)

Tolerances (Clause 6.2)

This ensures uniformity, traceability, and quality control of adze handles per IS 2893.