Library furniture and fittings, Part 2: Steel

IS 1829 Part 2 - Scope: Key Dimensions & Specifications

1. Card Index Cabinets (Clause 8.2, Table 2)

2. Book Racks (Clause 4.2, Table 1)

• *Recommended depths for oversized documents: 600 mm (double faced), 300 mm (single faced).
• Angle posts have holes every 50 mm for adjustable shelves.
• Shelf center-to-center spacing: 350 mm.

3. Catalogue Cards Work Tray (Clause 9.1)

4. Reading Room Table (Clause 11)

• Single reader: 900 × 600 mm
• Three readers: 2400 × 600 mm
• Table height: 750 mm
• Footrest rod height: 150 mm

5. Material Specification

• Tray sheet thickness: ≥ 0.8 mm steel sheet (Clause 10.3).

flowchart TD
    A[Card Index Cabinets] --> B[Two drawer: 135x320x510 mm]
    A --> C[Four drawer: 255x320x510 mm]
    D[Book Racks] --> E[Double faced: 2175x1840x460 mm]
    D --> F[Single faced: 2175x1840x230 mm]
    G[Catalogue Cards Tray] --> H[300

IS 1829 (Part 2): Referenced Indian Standards Summary

This part of IS 1829 (1993) on steel library furniture references key Indian Standards essential for materials, finishes, dimensions, and performance:

Key Notes:

• Dimensions of steel furniture align with timber furniture (IS 1829 Part 1).
• Performance requirements for finishes (paints, powder coating) are specified referencing IS 101 series and IS 13871.
• Welding and steel material quality are covered by IS 814, IS 513, and IS 1079.
• Steel furniture like book cases and glass-front cabinets must comply with IS 7761 and IS 7760 respectively.

Rounding Off (IS 2:1960)

• Final test or calculated values must be rounded to the same significant figures as specified.

flowchart LR
    A[IS 1829 Part 2 Steel Furniture] --> B[Material Standards]
    B --> IS513[IS 513: Steel Sheets]
    B --> IS1079[IS 1079: Hot Rolled Steel]
    A --> C[Finish & Paint]
    C --> IS101[IS 101: Paint

IS 1829 Part 2: Key Materials Specifications for Steel Furniture

• Mild Steel Sheets

  • Shall conform to Grade 0 of IS 1079:1988 or IS 513:1986 (Clause 3.1).
  • Minimum thickness for trays: 0.8 mm steel sheet (Clause 10.3).

• Furniture Dimensions (Clause 11)

  • Reading Room Table:
    • Single: 900 × 600 mm, height 750 mm
    • For three readers: 2400 × 600 mm, height 750 mm
    • Footrest rod height: 150 mm
  • Study Table: Same as single reading table + pedestal with 1-2 drawers.

• Steel Chairs

  • Materials, construction, and finish shall conform to IS 3499 (Part 1): 1985 (Clause 13.2).

• Finish Requirements

  • Performance requirements for finish are included but detailed specifications are per referenced standards.

Summary Table: Steel Sheet Thickness for Library Furniture

Reference Standards

• IS 1079:1988 (Mild Steel Sheets)
• IS 513:1986 (Cold Rolled Steel Sheets)
• IS 3499 (Part 1):1985 (Steel Chairs)

flowchart LR
  A[Steel Furniture] --> B[Mild Steel Sheets]
  B --> C[Grade 0 IS 1079 / IS 513]
  A --> D[Tray]
  D --> E[Min thickness 0.8 mm]
  A --> F[Tables]
  F --> G[Reading Room Table 900x600x750 mm]
  F --> H[Study Table + pedestal]
  A --> I[Steel Chairs]
  I --> J[Conform IS 3499 Part 1]

This concise summary aligns with IS 1829 Part 2 for steel furniture materials and dimensions.

IS 1829 Part 2: Book Racks Key Specifications

1. Types of Book Racks (Clause 4.1)

• Open skeleton type: Side & back strips
• Closed type: Sides & back closed with sheets
• Side closed type: Only sides closed with sheets

2. Dimensions (Clause 4.2, Table 1)

• *For oversized documents, use depths:

  • Double faced: 600 mm
  • Single faced: 300 mm

• Shelves adjustable every 50 mm via holes in angle posts.

• Shelf center-to-center spacing generally 350 mm.

3. Book Trolley (Clause 5.1 & 5.5)

• Two pairs of sloping shelves, each 200 mm wide.
• One flat-bottom shelf about 425 mm wide for large books.
• Bottom corners and vertical angle ends protected to prevent damage.
• Designed to avoid noise during use.

4. Additional Notes

• Book ends should comply with IS 7076:1983.
• Catalogue card trays as per Clause 7.

flowchart LR
    A[Book Rack Types] --> B(Open Skeleton)
    A --> C(Closed Type)
    A --> D(Side Closed)
    E[Dimensions] --> F[Double Faced: 2175x1840x460 mm]
    E --> G[Single Faced: 2175x1840x230 mm]
    H[Shelf Spacing] --> I[Holes every 50 mm]
    H --> J[Center-to-center 350 mm]

This summary helps design and specify book racks per IS 1829 Part 2.

IS 1829 Part 2: Book Trolleys Key Specifications

• Shelves (Clause 5.1):

  • Two pairs of sloping shelves, each 200 mm wide
  • One flat-bottom shelf about 425 mm wide (for large books)

• Height & Spacing (Clause 5.2):

  • Total trolley height: 750 mm (same as table height)
  • Clear distance between shelves: 250 mm

• Protection (Clause 5.5):

  • Bottom corners and vertical angle ends should have protective guards to prevent damage.
  • Design to avoid noise during use.
  • Book ends steel: conform to IS 7076:1983

• Shelf Adjustment (Clause 4.2 & Table 1):

  • Angle posts with holes every 50 mm for shelf adjustment flexibility.
  • Recommended shelf centre-to-centre distance: 350 mm

• Oversized documents:
  • Depths recommended: 600 mm (double faced), 300 mm (single faced)

graph TD
  A[Trolley Height: 750 mm] --> B[Two pairs of sloping shelves (200 mm wide)]
  A --> C[One flat shelf (425 mm wide)]
  B --> D[Clear shelf spacing: 250 mm]
  A --> E[Protective guards at corners]
  E --> F[Noise-free design]

This summary aligns with IS 1829 Part 2:1993 for book trolley design.

IS 1829 Part 2: Steel Chairs - Key Points

• Dimensions: As per IS 3663:1991, steel chairs have essential dimensions standardized for comfort and usability. Refer to IS 3663 for detailed seat height, width, depth, and back-rest dimensions.

• Materials & Finish: Steel chairs must comply with IS 3499 (Part 1): 1985, ensuring quality of steel, construction methods, and surface finish (e.g., powder coating or paint for durability).

• Back-rest Design:

  • Curved in plan for ergonomic comfort.
  • Not too curved to restrict movement, nor too flat to cause discomfort.

• Seat Height:

  • For counter chairs, seat height depends on counter height (typically 250-300 mm lower than counter top).

Summary Table (Typical Dimensions from IS 3663)

References for related steel furniture:

• Steel bookcases: IS 7761:1983
• Steel glass-front cabinets: IS 7760:1985

flowchart LR
    A[Steel Chairs] --> B[Dimensions (IS 3663)]
    A --> C[Materials & Finish (IS 3499)]
    A --> D[Back-rest Curvature]
    A --> E[Seat Height per Counter]
    A --> F[Related Furniture]
    F --> G[Bookcases (IS 7761)]
    F --> H[Glass Cabinets (IS 7760)]

For exact dimensional tables and construction details, consult the respective IS codes.

IS 1829 Part 2 — Catalogue Cards Tray Specifications

Key Dimensions (Clause 9.1)

Catalogue Card Size (Clause 7.1)

• Based on International Catalogue Card size:
  75 mm × 125 mm (as per IS 7150:1974)

Additional Specifications

• Card Rest:
  Each tray shall have a movable card rest with a hole for the guide rod (Clause 7.5).

• Cabinet Stand Height:
  Cabinet to be placed on a stand/table of 570 mm height (Clause 8.3).

Summary Diagram

graph TD
A[Catalogue Card Tray] --> B[Length: 300 mm]
A --> C[Width: 135 mm]
A --> D[Depth: 50 mm]
A --> E[Movable Card Rest with Guide Rod Hole]
F[Catalogue Card] --> G[75 mm x 125 mm]
H[Cabinet] --> I[Stand Height: 570 mm]

This ensures compatibility with standard catalogue cards and ergonomic cabinet placement.

IS 1829 Part 2 - Card Index Cabinets Key Specifications

Dimensions (Clause 8.2, Table 2)

Additional Specifications

• Movable Card Rest (Clause 7.5): Each tray must have a movable card rest with a hole for the guide rod.
• Cabinet Placement (Clause 8.3): Cabinets should be placed on a stand/table 570 mm high.

Catalogue Cards Work Tray (Clause 9.1)

graph TD
    A[Card Index Cabinet] --> B[Two Drawer]
    A --> C[Four Drawer]
    B --> D[135x320x510 mm]
    C --> E[255x320x510 mm]
    A --> F[Placed on 570 mm high stand]
    A --> G[Movable card rest with guide rod hole]
    A --> H[Catalogue Cards Work Tray]
    H --> I[300x135x50 mm]

This ensures standardized sizing and functionality for card index cabinets per IS 1829 Part 2.

IS 1829 Part 2: Catalogue Cards Work Tray Specifications

Key Dimensions (Clause 9.1)

Additional Specifications

• Catalogue card size: 75 × 125 mm (IS 7150:1974) (Clause 7.1)
• Movable card rest: Each tray shall have a movable card rest with a hole for the guide rod (Clause 7.5)
• Cabinet placement: Cabinet to be placed on a stand/table 570 mm high (Clause 8.3)

Summary Diagram of Work Tray

graph LR
A[Catalogue Cards Work Tray]
A -->|Length 300 mm| L[300 mm]
A -->|Width 135 mm| W[135 mm]
A -->|Depth 50 mm| D[50 mm]
A --> CardRest[Movable Card Rest with guide rod hole]
A --> CardSize[Catalogue Card 75 × 125 mm]
A --> Cabinet[Cabinet on 570 mm high stand]

This ensures compatibility with international catalogue cards and ergonomic placement.

Charging Trays (IS 1829 Part 2:1993)

• Purpose: To hold reader's tickets.
• Compartments: 1 to 4 compartments.

Internal Dimensions of Each Compartment

Notes:

• The overall tray size depends on the number of compartments and ticket sizes.
• Compartments are arranged side-by-side; total tray length = compartment length × number of compartments.
• Depth is not specified explicitly; design based on ticket thickness.

Related: Catalogue Cards Work Tray (Clause 9.1)

flowchart LR
    A[Charging Tray] --> B[1 to 4 Compartments]
    B --> C{Charging System}
    C --> D[Newark: 370 x 125 mm]
    C --> E[Browne: 370 x 75 mm]

This ensures correct sizing for efficient ticket storage and handling.

IS 1829 Part 2: Reading Room Table Specifications

• Table Size:

  • Single reader: 900 × 600 mm
  • Three readers: 2400 × 600 mm

• Height:

  • Table top: 750 mm
  • Footrest rod: 150 mm

• Material:

  • Tray thickness: Steel sheet, minimum 0.8 mm thick (Clause 10.3)

• Study Table:

  • Same size as single reader reading room table
  • Includes pedestal with 1 or 2 drawers

Related Dimensions from IS 1829:

Summary Diagram of Reading Room Table Dimensions:

graph LR
A[Reading Room Table] --> B[Single Reader: 900x600 mm]
A --> C[Three Readers: 2400x600 mm]
A --> D[Height: 750 mm]
A --> E[Footrest Rod: 150 mm]

This ensures ergonomic comfort and standardization for library furniture as per IS 1829 Part 2.

IS 1829 Part 2: Study Table Key Specifications

• Material: Steel sheet, minimum thickness 0.8 mm (Clause 10.3).
• Dimensions: Same as Reading Room Table for a single reader:
  • Length: 900 mm
  • Width: 600 mm
  • Height (table top): 750 mm
  • Foot rest rod height: 150 mm (if applicable)
• Additional Features: One pedestal on one side with one or two drawers.

Reading Room Table Dimensions (for reference)

Card Index Cabinets (Clause 8.2, Table 2)

Notes:

• Design details (e.g., drawer mechanisms, pedestal design) are left to the designer's discretion.
• Dimensions align with timber furniture standards for uniformity.
• Steel finish and marking requirements are specified elsewhere in the standard.

flowchart LR
    A[Study Table] --> B[Steel Sheet ≥ 0.8 mm]
    A --> C[Dimensions: 900x600x750 mm]
    A --> D[Pedestal with 1 or 2 drawers]
    C --> E[Foot Rest Rod Height: 150 mm]

This summary ensures compliance with IS 1829 Part 2 for steel study tables in libraries.

IS 1829 Part 2: Key Specifications for Book Cases

1. Dimensions of Book Racks (Clause 4.2, Table 1)

• Shelf spacing: 350 mm center-to-center recommended.
• Adjustability: Angle posts with holes every 50 mm for shelf adjustment.
• Oversized documents: Depths of 600 mm (double faced) and 300 mm (single faced) recommended.

2. Materials & Related Standards

• Steel bookcases: IS 7761:1983
• Steel glass-front cabinets: IS 7760:1985
• Steel book ends: IS 7076:1983

3. Additional Notes

• Protection on vertical angle corners to prevent damage (Clause 5.5).
• Book trolleys designed for noise-free operation.
• Catalogue card trays: Steel sheet ≥ 0.8 mm thick (Clause 10.3).

flowchart TD
    A[Book Rack] --> B[Double Faced Unit]
    A --> C[Single Faced Unit]
    B --> D[Height: 2175 mm]
    B --> E[Length: 1840 mm]
    B --> F[Depth: 460 mm]
    C --> G[Height: 2175 mm]
    C --> H[Length: 1840 mm]
    C --> I[Depth: 230 mm]
    A --> J[Shelf Spacing: 350 mm]
    A --> K[Adjustable Shelves (holes every 50 mm)]

This summary captures the essential dimensional and material requirements for bookcases per IS 1829 Part 2.

IS 1829 Part 2: Glass-Front Cabinets for Libraries

Key Specifications (Clause 15 & related)

• Standard: Steel glass-front cabinets shall conform to IS 7760 : 1985.
• Types: Cabinets typically have two or four drawers (Clause 8.1).

Dimensions for Card Index Cabinets (Clause 8.2, Table 2)

Shelf & Rack Details Relevant for Library Storage

• Shelf spacing: Holes at every 50 mm for adjustable shelves.
• Shelf center-to-center distance: Generally 350 mm.
• Book rack depths:
  • Double faced: 460 mm (600 mm for oversized documents)
  • Single faced: 230 mm (300 mm for oversized documents)
• Height of lowest shelf above floor: 100 mm.

Summary Diagram for Cabinet Types

graph TD
    A[Glass-Front Cabinets] --> B[Two Drawer Cabinet]
    A --> C[Four Drawer Cabinet]
    B -->|Height:135 mm| D[Width:320 mm]
    B -->|Depth:510 mm| D
    C -->|Height:255 mm| E[Width:320 mm]
    C -->|Depth:510 mm| E

Note: For detailed fabrication and material specs, refer to IS 7760 : 1985.

IS 1829 Part 2: Finishing and Surface Treatment Key Points

1. Surface Preparation (Clause 16.1)

• Remove dents, burrs, sharp edges.
• Pickle, scrub, and rinse to eliminate grease, rust, scale.

2. Phosphating Treatment (Clause 16.2)

• Apply phosphating per IS 3618:1966 immediately after pickling.
• Follow with a primer coat (e.g., red oxide primer).

3. Painting System (Clause 16.2)

• Two coats of enamel paint:
  • Undercoat: IS 149:1950
  • Finish coat: IS 151:1985 or IS 2932:1974 or IS 2933:1975
• Putty for filling as per IS 110:1983.
• Aluminium primer: IS 5660:1970.

4. Optional Powder Coating (Clause 16.4)

• Powder coating on mild steel as per IS 13871:1993 (if purchaser requires).

Summary Table

flowchart TD
    A[Steel Component] --> B[Remove dents, burrs, edges]
    B --> C[Pickling, scrubbing, rinsing]
    C --> D[Phosphating (IS 3618)]
    D --> E[Primer coat (Red oxide)]

IS 1829 Part 2: Performance Requirements & Tests for Steel Furniture Finish

Key Performance Requirements

• Powder Coating:
  Optional on mild steel components as per IS 13871:1993 (Clause 16.4).

• Finish Performance:
  Ensures durability and resistance to environmental factors for steel furniture used in libraries.

Important Tests & References

Notes on Testing

• Impact Resistance: Measures the ability of the finish to withstand sudden mechanical shocks without damage.
• Humidity Resistance: Assesses the finish's durability under continuous condensation conditions, simulating damp environments.

Additional Specifications

• Final test values must be rounded as per IS 2:1960 rules.
• Essential dimensions align with timber furniture (Part 1) for uniformity.
• Design details are left to the designer's discretion.

flowchart TD
    A[Steel Furniture] --> B[Surface Finish]
    B --> C{Performance Tests}
    C --> D[Impact Resistance (IS 101 Part 5/3)]
    C --> E[Humidity Resistance (IS 101 Part 6/1)]
    B --> F[Powder Coating (Optional, IS 13871)]

This ensures steel furniture in libraries meets durability and environmental resistance standards for long-term use.

IS 1829 Part 2 (1993) — Marking and Identification Key Points

• Clause 18.1:
  Every steel furniture item must be marked with a manufacturer's identification mark for traceability.

• Clause 18.2:
  Items may also bear the BIS Standard Mark, indicating conformity to Indian Standards.

Summary of Marking Requirements

Additional Notes

• Marking ensures quality control and accountability.
• Marking methods can include engraving, stamping, or labeling with durable materials.
• Follow IS 2:1960 for rounding off numerical values related to marking dimensions or codes.

flowchart TD
    A[Manufactured Steel Furniture] --> B{Marking}
    B --> C[Manufacturer's Identification Mark (Mandatory)]
    B --> D[Standard Mark (Optional)]
    C --> E[Visible & Durable]
    D --> E

For detailed marking dimensions or label specifications, refer to the manufacturer's guidelines or BIS marking rules.