metal waste paper bins - Specification

IS 3762 - Scope: Key Specifications & Dimensions

Scope Summary: IS 3762 covers specifications for metal waste paper bins made from cold or hot rolled carbon steel sheets, including surface treatment and quality control.

Key Specifications:

• Material Preparation:

  • Remove dents, burrs, sharp edges.
  • Components pickled to remove grease, rust, scale (Clause 6.1).

• Pressure Test:

  • Samples from mild steel plates (0.315 mm thick) subjected to pressure test (Clause 7.1.2).

• Marking:

  • ISI Certification Mark usage governed by Indian Standards Institution rules (Clause 8.1.1).

Dimensions & Tolerances (Clause 3.1):

Units & Definitions (SI Units):

flowchart TD
    A[Raw Steel Sheets] --> B[Remove dents, burrs, sharp edges]
    B --> C[Pickling to remove grease, rust, scale]
    C --> D[Forming & Welding]
    D --> E[Pressure Test (0.315 mm thick samples)]
    E --> F[Marking with ISI Certification]
    F --> G[Final Product: Metal Waste Paper Bin]

For detailed welding, painting, and corrosion protection, refer to related IS codes mentioned in the scope.

IS 3762: Key Materials Specifications & References

• Steel Sheets:

  • Mild Steel Sheets: Conform to IS 513-1973 or IS 1079-1973 (Clause 2.3)
  • Cold Rolled Carbon Steel Sheets: Refer to Specification for cold rolled carbon steel sheets (second revision)
  • Hot Rolled Carbon Steel Sheets & Strip: Refer to Specification for hot rolled carbon steel sheets and strip (third revision)

• Aluminium Sheets:

  • Shall conform to Designations 31000, 31500, 40800, or 52000 in H2 condition as per IS 737-1974 (Clause 2.1)

• Surface Preparation (Clause 6.1):

  • Remove dents, burrs, sharp edges
  • Individual pickling to remove grease, rust, scale, foreign elements

• Protective Treatments:

  • Phosphate treatment per Specification for phosphate treatment of iron and steel
  • Paints & Coatings: Various IS codes for primers, enamel, and finishing paints (see Clause 6 context)

Typical Material Quality Checks:

Summary Flow of Material Preparation (Clause 6.1):

flowchart LR
    A[Raw Components] --> B[Remove Dents, Burrs, Sharp Edges]
    B --> C[Pickling Process]
    C --> D[Clean Surface Free of Grease, Rust, Scale]
    D --> E[Ready for Further Processing]

For detailed welding, painting, and treatment, refer to respective IS codes mentioned in the context.

IS 3762: Dimensions and Tolerance for Waste Paper Bins

Key Dimensions (Clause 3.1)

Tolerance (Clause 3.2)

• Overall dimension tolerance: ± 5 mm

Material Specification (Clause 2.3)

• Mild steel sheets must conform to:
  • IS 513-1973 (Cold Rolled Carbon Steel Sheets)
  • IS 1079-1973 (Hot Rolled Carbon Steel Sheets and Strips)

Additional Requirements (Clause 6.1)

• Remove all dents, burrs, and sharp edges.
• Components must be pickled to remove grease, rust, scale, or foreign matter.

Summary Table:

This ensures dimensional accuracy and material quality for waste paper bins as per IS 3762.

IS 3762 - Key Construction Specifications & References

• Surface Preparation (Clause 6.1):

  • Remove all dents, burrs, sharp edges.
  • Individually pickle components to remove grease, rust, scale, foreign elements.

• Material Specifications:

  • Cold Rolled Carbon Steel Sheets: IS 513-1973 / IS 1079-1973
  • Hot Rolled Carbon Steel Sheets and Strip: Third Revision
  • Mild Steel Plates thickness: 0.315 mm (for pressure test samples).

• Welding Codes:

  • Oxy-Acetylene Welding: Code of Practice (Revised)
  • Metal Arc Welding: Code of Practice (First Revision)
  • Resistance Spot Welding: Code of Practice for Light Assemblies

• Surface Treatments & Paints:

  • Phosphate Treatment: Specification and Code of Practice
  • Paste Filler, Ready Mixed Paints, Enamels: Various IS specifications and revisions.

• Marking (Clause 8.1.1):

  • ISI Certification Mark use governed by Indian Standards Institution rules.

Important Units & Definitions (SI Units)

Typical Dimension & Tolerance Reference (Clause 3)

• Mild steel sheets conform to IS 513-1973 or IS 1079-1973.
• Thickness and dimensional tolerances as per these standards.

Summary Diagram: Construction Process Flow

flowchart TD
    A[Start: Raw Components] --> B[Remove Dents, Burrs, Sharp Edges]
    B --> C[Pickling: Remove Grease, Rust, Scale]
    C --> D[Material Inspection: IS 513 / IS 1079 Compliance]
    D --> E[Welding: Oxy

Welding Requirements as per IS 3762

Key Clauses & References:

• Clause 6.1:

  • Remove all dents, burrs, sharp edges before welding.
  • Components must be pickled to remove grease, rust, scale, and foreign elements.

• Clause 5.2:

  • Welding methods must conform to:
    • Gas welding: IS 1323-1966
    • Arc welding: IS 816-1969
    • Spot welding: IS 819-1957

• Clause 2.2:

  • Electrodes and filler rods must meet:
    • Gas welding electrodes: IS 1278-1972
    • Arc welding electrodes: IS 814 (Part II)-1974
    • Spot welding electrodes: IS 4972-1968

• Clause 5.3:

  • Aluminium welding per IS 2812-1964

Summary Table of Welding Standards

Important Notes:

• Proper surface preparation (cleaning, pickling) is mandatory before welding.
• Use electrodes and filler rods as per specified IS standards for quality welds.
• Follow respective IS codes for welding procedures to ensure structural integrity.

flowchart TD
    A[Component Preparation] --> B[Remove dents, burrs, sharp edges]
    B --> C[Pickling to remove grease, rust, scale]
    C --> D[Select Welding Method]
    D --> E

IS 3762: Surface Preparation and Finishing - Key Points

1. Surface Preparation (Clause 6.1 & 6.2)

• Remove all dents, burrs, sharp edges before finishing.
• Components must be pickled to remove grease, rust, scale, and foreign materials.
• Immediately after pickling, apply phosphating treatment as per Class C of IS 3618-1966.
• Phosphating process must follow IS 6005-1970.
• Use putty (IS 426-1961) for filling surfaces.
• Aluminium primer must conform to IS 2931-1964.

2. Finishing Tests (Clause 7.1.2 & 7.1.3)

• Pressure Test: Samples from mild steel plates (0.315 mm thick) finished as per Clause 6 shall be pressure tested.
• Flexibility & Adhesion Test: Sample size 150 x 50 mm, thickness 0.315 mm, tested as per Clause 16 of IS 101-1964.
  • Paint film must show no damage, detachment, or cracking under 10x magnification.

Summary Table: Surface Treatment Steps

flowchart TD
    A[Surface Preparation] --> B[Remove dents, burrs, edges]
    B --> C[Pickling (Remove grease, rust, scale)]
    C --> D[Phosphating Treatment (Class C)]
    D --> E[Putty Filling]
    E -->

IS 3762: Performance Tests Key Points

Pressure Test (Clause 7.1.2)

• Test samples: Mild steel plates, thickness 0.315 mm.
• Samples finished as per Clause 6.
• Subjected to pressure test to verify coating integrity and adhesion.

Preparation (Clause 6.1)

• Remove dents, burrs, sharp edges.
• Pickling to remove grease, rust, scale, foreign elements.

Testing Scope (Clause 7.1)

• Tests 7.1.1 to 7.1.5 cover performance requirements of finish (adhesion, corrosion resistance, etc.).

General Specifications for Tests:

SI Units for Reference (from context):

Summary Diagram of Performance Testing Process:

flowchart TD
    A[Sample Preparation] --> B[Surface Cleaning & Pickling]
    B --> C[Coating Application]
    C --> D[Pressure Test (0.315 mm sample)]
    D --> E{Pass?}
    E -- Yes --> F[Further Tests (Adhesion, Corrosion)]
    E -- No --> G[Reject / Rework]

Note: For detailed test parameters (pressure values, duration), refer to full IS 3762 text or related IS paint/coating standards.

IS 3762 - Marking of Metal Waste Paper Bins

Key Specifications (Clause 8.1 & 8.1.1)

• Marking Requirement:
  All metal waste paper bins must be marked with a suitable manufacturer identification mark.

• ISI Certification Mark:
  Bins may also bear the ISI Certification Mark, indicating compliance with Indian Standards under ISI supervision and quality control.

Important Notes on ISI Mark:

• Governed by the Indian Standards Institution (Certification Marks) Act.
• ISI Mark assures:
  • Production as per IS standards.
  • Continuous inspection and testing.
  • Quality control by ISI and manufacturer.

Additional Related Clauses:

• Clause 6.1: Components must be free from dents, burrs, and sharp edges.
• Components should be pickled to remove grease, rust, scale before finishing.

Summary Table: Marking Requirements

Visual Summary

flowchart TD
    A[Metal Waste Paper Bin] --> B[Manufacturer Marking (Mandatory)]
    A --> C[ISI Certification Mark (Optional)]
    C --> D[ISI Quality Control & Inspection]

For detailed licensing and marking conditions, contact the Indian Standards Institution regional offices listed in the code.