Methods of test for strength and stability of tables and trolleys, Part 2: Stability
1986 Edition

IS 5974 specifies the application range and fundamental dimensions relevant to divans and easy chairs, including ergonomic parameters like seat height, seat depth, and armrest height, along with the included angle between seat and backrest. It also outlines rounding guidelines for test results in accordance with IS 2-1960 to maintain precision and consistency.

Clarifies key furniture terms such as 'divan' and details critical dimensional values for seating furniture, emphasizing ergonomic comfort through parameters like seat height, clear seat depth, armrest height, and the angle between backrest and seat.

Describes the material standards applicable to components used in furniture manufacturing including mild steel sheets (IS 513 and IS 1079), aluminium sheets (IS 737), particle boards (IS 3087), and surface finishes following IS 2338. It also references related Indian Standards for welding materials, wood products, adhesives, and mechanical fasteners.

Provides detailed dimension ranges for seat height, seat depth, armrest height, and the included angle between seat and backrest to ensure ergonomic design compliance for divans and easy chairs.

Outlines the sampling frequency based on batch size, inspection criteria, and testing requirements, including dimensional checks and performance tests. It emphasizes the importance of rounding test results as per IS 2-1960 and maintaining significant figures consistent with standard specifications.

Focuses on stability evaluation protocols, including dimensional checks and load application to verify resistance to tipping or rocking. While detailed formulas are not specified, the section highlights essential parameters and the approach for stability testing, along with result rounding conventions.

Details the required tests for finished wood surfaces assessing resistance to dry heat, wet heat, marking by liquids, and mechanical damage, referencing IS 5807 parts 1, 2, 4, and 6 respectively, with minimum qualifying ratings to ensure durability.

Specifies marking protocols for furniture, including manufacturer identification, product type, and size. It reinforces surface finish resistance criteria and includes references to related test methods for adhesion and durability, alongside ECO Mark environmental compliance.

Highlights the environmental standards required for ECO Mark certification, including compliance with IS 12406 for MDF and IS 3087 for particle boards, mandating manufacturers to submit compliance declarations to the Bureau of Indian Standards (BIS).

Describes the rounding rules for all test measurements and calculations in accordance with IS 2:1960, ensuring that the number of significant digits in results aligns with those specified in the standard, maintaining uniformity and accuracy.

Details seasoning requirements and moisture content limits for timber used in furniture, along with preservative treatments needed for sapwood and non-durable timber species, referencing IS 1141, IS 287, and IS 401. Also covers finishing standards for paints and varnishes per IS 2338.

Lists other Indian Standards referenced within IS 5974 for materials quality, testing protocols, rounding rules, and surface finish requirements, ensuring comprehensive adherence to quality and safety norms.