IS 17631:2022 establishes the requirements for work chairs seating furniture use in office or commercial environments. These chairs feature a backrest and may include armrests and reclining mechanisms. The seat assembly typically rotates horizontally and offers height adjustment capabilities, with various additional adjustments available depending on the model.
The standard applies to:
The testing procedures outlined in this standard evaluate chair performance without regard to material type, construction method, or manufacturing process.
IS 17631:2022 specifically addresses office work chairs intended for adult users. The forces and dimensions defined within the standard are based on chairs used for approximately 40 hours per week and designed to accommodate users with a maximum mass of 110 kg.
For chairs intended to support heavier users or endure longer usage durations, the standard provides specific guidance on proportionately increasing test forces and durability cycles.
It's important to note that this standard does not cover industrial seating used in environments that differ from typical office settings.
According to IS 17631:2022, work chairs must meet the following design and workmanship conditions:
Where applicable, work chair dimensions shall conform to IS 3663, which specifies dimensions for office tables and chairs. Alternative dimensions may be used based on mutual agreement between the manufacturer and purchaser, provided functional performance remains uncompromised.
IS 17631:2022 specifies comprehensive surface performance testing for work chairs. Rigid surfaces must meet minimum performance levels defined in IS 17637, including resistance to:
Fabric and leather surfaces (both synthetic and natural) undergo additional testing such as breaking load, abrasion resistance, color fastness, seam slippage, and resistance to flexing. These tests are performed on material samples rather than assembled chairs.
As per IS 17631:2022 Work Chairs Specification, safety requirements for office work chairs are evaluated through stability, strength, and durability tests conducted under defined loading conditions. should match with Clause 7.2,7.3,7.4,7.5 of IS 17632: 2020
1. General Safety Conditions
Work chairs shall not overturn or become unsafe under the following conditions:
Specified vertical and horizontal forces or masses are applied at defined loading points on the seat, backrest, armrests, or footrest, and no overturning is permitted during or after testing.
3. Strength Requirements (Static Load Tests)
Strength tests verify the chair’s ability to withstand high loads applied for limited cycles, including:
During these tests:
Durability tests simulate long-term repeated use, including:
The chair must withstand tens of thousands of load cycles without loss of stability, structural integrity, or safe functionality.
5. Acceptance Criteria
After completion of all safety tests:
The standard defines detailed loading points, force magnitudes, cycles, and test configurations to ensure consistent performance evaluation across different chair designs.
Chairs of the same model manufactured using identical raw materials are treated as a single lot. Samples are selected based on lot size and tested according to the requirements for design, dimensions, surface performance, and safety.
A lot is considered conforming when the selected samples meet all applicable test requirements, including criteria related to deformation, breakage, joint integrity, and stability.
Each work chair conforming to IS 17631:2022 must be legibly and permanently marked with:
For chairs supplied in knock-down form, assembly instructions must be provided either as a printed leaflet or in digital format. Products conforming to this standard may be certified under BIS conformity assessment schemes and marked with the BIS Standard Mark, as per applicable rules and regulations.
IS 17631:2022 provides a comprehensive specification framework for work chairs used in office and commercial environments. By establishing clear requirements for design, dimensions, surface performance, safety, strength, and durability, the standard ensures that work chairs are evaluated under conditions that simulate normal use and foreseeable misuse.
Manufacturers adhering to IS 17631:2022 can align their product performance with nationally recognized benchmarks, while purchasers and users benefit from consistent evaluation criteria grounded in standardized testing methods.
IS 17631:2022 applies to office and commercial work chairs intended for adult users, including chairs with adjustable height, rotating seats, backrests, and optional armrests.
No. The tests are designed to evaluate performance regardless of material, construction method, or manufacturing process.
Yes. Rigid, fabric, and leather surfaces are tested according to specified performance criteria, primarily referenced from IS 17637.
The standard states that products conforming to IS 17631:2022 may be certified under BIS conformity assessment schemes and marked with the BIS Standard Mark, subject to applicable rules.
Yes. The standard applies to ready-to-assemble chairs, and all requirements are evaluated on the chair after assembly.
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