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IS 12674:2000 (Part 2) is the Indian Standard (BIS) for methods of test for strength and stability of settees and benches, part 2: stability. This standard specifies the test methods for evaluating the structural strength and durability of settees and benches. It includes procedures for static and fatigue testing of key components like seats, backs, and armrests to ensure safety and performance under various use conditions.
Methods of test for strength and stability of settees and benches, Part 2: Stability
Consolidated list per BIS. For the text of each amendment, refer to the BIS portal link above.
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International Equivalents
Similar International Standards
EN 12520:2015CEN (European Committee for Standardization), Europe
HighCurrent
Furniture — Strength, durability and safety — Requirements for domestic seating
Specifies strength and safety requirements for all types of domestic seating, including settees and benches.
EN 1728:2012CEN (European Committee for Standardization), Europe
HighCurrent
Furniture — Seating — Test methods for the determination of strength and durability
Provides the detailed test methodologies referenced by EN 12520, which are conceptually similar to those in IS 12674.
BIFMA X5.4-2020BIFMA/ANSI, USA
MediumCurrent
Lounge and Public Seating
Covers strength testing for multi-seat furniture but is intended for commercial/public use, entailing much higher test loads.
ISO 7173:1989ISO (International Organization for Standardization), International
MediumWithdrawn
Furniture — Chairs and stools — Determination of strength and durability
A foundational standard for seating strength test methods, many of which are adapted in IS 12674, but its scope is limited to chairs/stools.
Key Differences
≠IS 12674 generally specifies lower static load values for the seat and back compared to its European domestic equivalent, EN 12520.
≠The Indian Standard combines requirements and test methods into a single document, whereas the European system separates requirements (EN 12520) from test methods (EN 1728).
≠IS 12674 provides a single set of requirements for all domestic settees, while EN 12520 defines different test levels for varying intensities of domestic use.
≠IS 12674:2000 focuses primarily on static strength and stability tests, whereas the EN and BIFMA frameworks include extensive cyclic durability/fatigue tests to simulate long-term use.
Key Similarities
≈All standards employ the same fundamental test principle of applying static loads to critical structural parts like the seat, back, and arms to check for failure.
≈The core suite of static strength tests performed is highly consistent, including seat static load, back static load, and both downward and sideways arm static loads.
≈The acceptance criteria for passing tests are conceptually identical, primarily defined as no fracture, breakage of components or joints, or loss of serviceability after load removal.
≈The general test procedure involves applying a specified force for a short duration (e.g., 10-30 seconds) and then inspecting the unit for damage.
Parameter Comparison
Parameter
IS Value
International
Source
Seat Static Load (per seat position)
1000 N
1300 N
EN 12520:2015 / EN 1728:2012
Back Static Load
410 N
430 N
EN 12520:2015 / EN 1728:2012
Arm Downward Static Load
700 N
600 N
EN 12520:2015 / EN 1728:2012
Arm Sideways Static Load
300 N
250 N
EN 12520:2015 / EN 1728:2012
Seat Static Load (Commercial Comparison)
1000 N
2500 N (functional load)
BIFMA X5.4-2020
Back Static Load (Commercial Comparison)
410 N
1334 N (functional load)
BIFMA X5.4-2020
Load Application Duration (Static)
10 seconds
10 seconds
EN 1728:2012
Number of test cycles for durability
Not specified (static tests only)
25,000 to 100,000 cycles (depending on test)
EN 1728:2012
⚠ Verify details from original standards before use
Key Values6
Quick Reference Values
Seat static load (heavy contract use)1600 N
Back static load (heavy contract use)560 N
Arm downward static load (heavy contract use)900 N
Seat durability test load (heavy contract use)1000 N
Seat durability test cycles (heavy contract use)100,000 cycles
Leg forward static load330 N
Tables & Referenced Sections
Key Tables
Table 1 - Test Requirements
Table 2 - Loads, Cycles and Points of Application for Tests
Key Clauses
Clause 5 - Seat and Back Static Load Test
Clause 6 - Seat and Back Durability Test
Clause 7 - Arm Rests Static Load Test
Clause 8 - Leg Forward and Sideways Static Load Test
Frequently Asked Questions4
What is the primary purpose of this standard?+
To provide a uniform method for testing the strength and durability of settees and benches, ensuring they are safe for their intended use.
Does this standard cover stability against tipping over?+
No, this is Part 1 which covers strength. Stability tests are specified in IS 12674 (Part 2).
What is a typical seat durability test?+
It involves applying a specified load (e.g., 1000 N for heavy use) repeatedly to the seat for a high number of cycles (e.g., 100,000) to simulate long-term use and check for fatigue failure (Clause 6).
Is this standard applicable to office chairs?+
No, this standard is for settees and benches. Office chairs are typically tested as per IS 5416 and the IS 14944 series.