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IS 2661:1978 is the Indian Standard (BIS) for mobile library van. This standard lays down the dimensional, spatial, and functional requirements for the bodywork and interior layout of mobile library vans. It provides specifications for chassis layout, shelving design, lighting, and ventilation to ensure a safe and efficient moving library environment.
mobile library van
Overview
Status
Current
Usage level
Rare
Domain
Architectural — Planning, Housing and Pre-fabricated Construction
BS PAS 3001:2002BSI (British Standards Institution), UK
HighWithdrawn
Public library service — Specification for mobile library vehicles
Directly specifies requirements for the design, construction, and equipment of mobile library vehicles.
UNECE Regulation No. 107UNECE (United Nations Economic Commission for Europe)
MediumCurrent
Uniform provisions concerning the approval of category M2 or M3 vehicles with regard to their general construction
Covers general construction, safety, and layout for buses, often the base vehicle for larger mobile libraries.
ALA Guidelines for Outreach ServicesALA (American Library Association), USA
LowCurrent
Guidelines for Library and Information Services to Older Adults / Guidelines for Outreach Services
Provides service-level guidelines, including mobile services, but is not a technical construction standard.
UNECE Regulation No. 118UNECE (United Nations Economic Commission for Europe)
LowCurrent
Uniform technical prescriptions concerning the burning behaviour of materials used in the interior construction of certain categories of motor vehicles
Specifies flammability requirements for interior materials, a key safety aspect not detailed in IS 2661.
Key Differences
≠IS 2661:1978 has no requirements for disabled access, whereas modern equivalents like BS PAS 3001 mandate wheelchair lifts and accessible interior layouts.
≠The Indian standard is highly prescriptive about materials (e.g., 'well-seasoned timber'), while modern standards like UNECE regulations are performance-based, requiring materials to pass specific safety tests (e.g., fire retardancy).
≠Modern standards (e.g., UNECE R107) have extensive and specific requirements for emergency exits, structural integrity in rollovers, and seat anchorages, which are absent in the 1978 Indian standard.
≠IS 2661 does not consider modern technology, focusing on basic lighting. BS PAS 3001 includes provisions for IT equipment, public-access computers, and network connectivity.
Key Similarities
≈Both IS 2661 and international counterparts like BS PAS 3001 define the core functional layout, including a public area with shelves, a staff counter, and separate entrances.
≈The fundamental design principle for bookshelves—sloped to retain books during vehicle motion—is a common feature in both the Indian standard and international guidelines.
≈All standards specify the need for a weatherproof body built on a suitable commercial vehicle chassis, with provisions for lighting, ventilation, and insulation.
≈Both IS 2661 and modern standards specify minimum internal dimensions for headroom and gangways to ensure user comfort and movement, although the specific values differ.
Parameter Comparison
Parameter
IS Value
International
Source
Minimum Internal Headroom
1.9 m
2.1 m recommended in main public areas
BS PAS 3001:2002
Minimum Gangway Width
600 mm
800 mm (to accommodate wheelchairs)
BS PAS 3001:2002
Accessibility for Wheelchairs
Not specified
Mandatory provision of a passenger lift
BS PAS 3001:2002
Shelf Inclination (from vertical)
About 10°
Between 5° and 10°
BS PAS 3001:2002
Emergency Exits
One combined entrance/exit door specified. No dedicated emergency exit.
Specific number and type of emergency exits (doors, windows, hatches) required based on vehicle size/capacity.
UNECE Regulation No. 107
Maximum Entrance Step Height (First Step)
250 mm
≤ 250 mm for Class B / ≤ 340 mm for Class III vehicles.
UNECE Regulation No. 107
Interior Material Flammability
Not specified
Must be tested with a horizontal burning rate not exceeding 100 mm/minute.
UNECE Regulation No. 118
⚠ Verify details from original standards before use
Key Values3
Quick Reference Values
Minimum interior clear height1900 mm
Minimum clear width of gangway750 mm
Recommended bookshelf tilt15 degrees backwards
Tables & Referenced Sections
Key Tables
No tables data
Key Clauses
Clause 3 - General Requirements
Clause 4 - Basic Dimensions
Clause 5 - Layout and Internal Arrangement
Clause 6 - Bookshelves and Furniture
Clause 8 - Lighting and Ventilation
Frequently Asked Questions3
What is the main purpose of IS 2661?+
It outlines the spatial and structural requirements for designing and building the body of a mobile library van.
How does the code address the issue of books falling during transit?+
It specifies that shelves should be tilted backwards or have retaining lips to secure the books while the van is moving.
Does this standard specify the automotive requirements of the vehicle?+
No, it focuses primarily on the bodywork, furniture, and architectural layout built upon a standard commercial chassis.