Parliament Hinges -Specification

IS 362: Scope - Key Formulas, Tables & Specifications

1. Scope Overview

• Covers parliament hinges: materials, dimensions, sampling, and quality criteria.
• Hinges designated by width between flanges (Clause 5.1).

2. Sampling & Conformity (Table 5, Clause 2.1)

3. Material Specifications (Table 1, Clause 4.2)

4. Packaging & Labelling (Clause 9.2)

Each package must show:

• Type & size of hinges
• Quantity
• Manufacturer/trade mark

5. Additional References

• IS 280, 292, 733, 737, 739, 1079, 1285, etc., for detailed material specs.
• Annex B for sampling method & conformity criteria.

Summary Diagram

IS 362 - Sampling & Criteria for Conformity (Parliament Hinges)

Key Points:

• Lot Definition: Hinges of the same type, size, material, and production conditions form a lot (Clause 10.1).

• Sample Size & Acceptance Criteria (Table 5):

• Sampling Method: Random selection per IS 4905:1968 (Clause 2.2).

• Testing: All sampled hinges checked for dimensions, manufacturing defects, and finish (Clause B-3).

• Conformity: Lot accepted if defectives ≤ permissible number; else rejected (Clause B-4).

Summary Diagram

flowchart TD
    A[Lot of Hinges] --> B[Random Sampling per Table 5]
    B --> C{Number of Defectives ≤ Permissible?}
    C -- Yes --> D[Lot Accepted]
    C -- No --> E[Lot Rejected]

Reference: IS 362 Annex B, Clause 2.1 & 10.1; IS 4905 for sampling method.

IS 362 - Materials for Parliament Hinges

Key Material Specifications (Clause 4.2, Table 1)

Important Dimensions (Clause 6.4, Tables 2-4)

• Width Between Flanges (A): 50 to 200 mm ±1-3 mm (depending on material)
• Length (B): 100 to 125 mm ±1 mm
• Diameter of Butt (D): Aluminium: 10.5-16.5 mm, Brass: 8-12.5 mm, Mild Steel: ~6.3-8 mm
• Diameter of Pin (d): Aluminium: 4.5-6.3 mm, Brass: 4.5-6.5 mm, Mild Steel: 6.3-8 mm
• Thickness of Flap: Aluminium: 3-5 mm, Brass: 3.5-5 mm, Mild Steel: ~2.24-2.5 mm
• Number of Screw Holes: 6 to 8 (Aluminium & Brass), 6 to 8 (Mild Steel)
• Holes for Screw Designation: 8 to 10

References to IS Codes for Materials

• IS 733, IS 1285, IS

IS 362: Manufacture of Parliament Hinges – Key Specifications & Tables

1. Materials (Clause 4.2, Table 1)

2. Dimensions for Aluminium Alloy Hinges (Clause 6.4, Table 2)

IS 362: Dimensions & Tolerances for Parliament Hinges

Key Points:

• Size designation: By width between flanges (Column A).
• Materials: As per Table 1 (e.g., Aluminium alloy rods IS 733, Mild steel sheet IS 1079, Cast brass IS 292).
• Tolerances: Dimensions in columns 5 to 8 follow IS 3965:1981 & IS 2525:1982.

Tables Summary (Dimensions in mm):

Material Specifications (Table 1):

• **Aluminium Alloy Rod

IS 362: Hinge Pin and Hole Specifications Summary

1. Hinge Pin Material & Fit (Clause 6.3)

• Materials:
  • Mild steel or brass for general hinges.
  • Phosphor bronze pins allowed for brass hinges on purchaser's request.
  • Aluminium alloy hinges use mild steel or aluminium alloy pins.
• Fit: Pin must fit firmly inside the knuckle, allowing easy movement without looseness.
• Corrosion: Use brass or phosphor bronze pins in corrosive environments.

2. Key Dimensions (Tables 2, 3 & 4)

3. Screw Holes (Clause 6.4)

• All holes must be clean, countersunk for countersunk head wood screws (IS 6760:1972).
• Number and size as per Tables 2-4.
• Position and size ensure secure attachment without weakening hinge.

4. Typical Parliament Hinge (Fig.1)

• Size designated by Width Between Flanges (A)
• Other dimensions per tables above.

IS 362: Finish Specifications for Parliament Hinges

Finish is not explicitly detailed in the provided clauses, but typical IS 362 hinge finishes conform to:

• Material-specific finishes:
  • Aluminium alloys: Anodized or powder-coated for corrosion resistance.
  • Mild steel: Zinc plating or galvanization.
  • Brass: Polished or lacquered to prevent tarnishing.

Key Tables & Dimensions (Clause 5.1, 6.4)

Material Grades (Clause 4.2)

IS 362 — Marking for Parliament Hinges

Key Clauses on Marking:

• Clause 8.1 & 8.1.1:

  • Each parliament hinge must be clearly and permanently marked with:
    • Manufacturer's name
    • Trade-mark (if any)
  • Hinges may also bear the Standard Mark.
  • Aluminium alloy hinges for external use shall be marked with letter 'E'.

• Clause 9.2 (Packing & Labelling): Each package must be labelled with:

  • Type of hinges
  • Size of hinges
  • Quantity of hinges
  • Manufacturer's name or trade-mark

Summary Table for Marking Requirements

Material Reference (For Marking Context)

flowchart TD
    A[Parliament Hinge] --> B[Permanent Marking]
    B --> C[Manufacturer Name]
    B --> D[Trade-mark (if any)]
    B --> E[Standard Mark (Optional)]
    F[Aluminium Alloy Hinge for External Use] --> G[Mark with 'E']
    H[Package] --> I[Label with Type, Size, Quantity, Manufacturer]

Note: Mark

IS 362: Packing Specifications for Parliament Hinges

Clause 9.1 - Packing Quantities:

Clause 9.2 - Package Labeling Requirements:

Each package must display:

• Type of hinges
• Size of hinges
• Quantity of hinges
• Manufacturer's name or trademark

Key Tables for Dimensions (See Clauses 5.1, 6.4 & Fig. 1)

Table 2: Aluminium Alloy Parliament Hinges (mm)

(Refer IS 362 Table 2 for full sizes 50 to 200 mm)

Summary Diagram of Packing & Labeling Process

flowchart TD
    A[Manufacture Hinges] --> B[Package Hinges per Size]
    B --> C{Size ≤ 75 mm?}
    C -- Yes -->

IS 362: Scale of Sampling & Criteria for Conformity

Sampling Plan (Table 5)

Key Points:

• Lot Definition: Hinges of same type, size, material, and production conditions form a lot (Clause 10.1).
• Sampling: Random selection as per IS 4905:1968 (Clause 2.2).
• Testing: All selected hinges checked for dimensions, manufacturing defects, and finish.
• Conformity: Lot passes if defectives ≤ permissible number; else rejected (Clause B-4).

Procedure Summary:

1. Identify lot size.
2. Select sample size from Table 5.
3. Inspect all sampled hinges.
4. Count defectives.
5. Accept lot if defectives ≤ permissible limit.

This ensures quality control by statistically verifying product conformity.

flowchart TD
    A[Define Lot] --> B[Select Sample Size]
    B --> C[Random Sampling]
    C --> D[Inspect Hinges]
    D --> E{Defectives ≤ Permissible?}
    E -- Yes --> F[Accept Lot]
    E -- No --> G[Reject Lot]

For detailed sampling method, refer to IS 4905:1968.

IS 362: List of Indian Standards - Key References

IS 362 refers to various Indian Standards relevant to materials and components used in engineering, especially hinges. Key referenced IS codes include:

Sampling & Conformity (Annex B & Clause 2.2)

• Hinges are selected randomly per IS 4905:1968.
• All selected hinges undergo dimensional, manufacturing defect, and finish checks.
• Lot conformity is based on allowable defective hinges per Table 5.

Packaging (Clause 9.2)

Each package must be labeled with:

• Type of hinges
• Size of hinges
• Quantity
• Manufacturer name or trademark

For detailed dimensional tables and sampling plans, refer to the individual IS codes cited above and Annex B of IS 362.

flowchart LR
    A[Select

IS 362: Sampling Procedures for Parliament Hinges

Key Sampling Table (Clause 2.1, Annex B)

Sampling Procedure (Clause 10.1)

• Hinges of the same type, size, material, and production conditions form a lot.
• Sampling is done per the above table to check conformity.
• If the number of defective hinges in the sample exceeds the permissible number, the lot is rejected.

Packaging & Labeling (Clause 9.2)

Each package must be labeled with:

• Type of hinges
• Size of hinges
• Quantity
• Manufacturer’s name or trademark

Summary Diagram: Sampling Decision Flow

flowchart TD
    A[Start: Identify Lot] --> B{Lot Size?}
    B -->|<=150| C[Sample 13 Hinges]
    B -->|151-300| D[Sample 20 Hinges]
    B -->|301-500| E[Sample 32 Hinges]
    B -->|501-1000| F[Sample 50 Hinges]
    B -->|>1000| G[Sample 80 Hinges]

    C --> H{Defectives <=0?}
    D --> I{Defectives <=1?}
    E --> J{Defectives <=2?}
    F --> K{Defectives <=3?}
    G --> L{Defectives <=5?}

    H -->|Yes| M[Accept Lot]
    I -->|Yes| M
    J -->|Yes| M
    K -->|Yes| M
    L -->|Yes| M

    H -->|No| N[Reject Lot]
    I -->|No| N
    J -->|No| N
    K -->|No| N
    L -->|No|