This specification outlines the criteria for machine operator desks and visual display unit (VDU) tables, emphasizing materials, construction techniques, measurements, and surface treatments. It requires a dual-tier layout to suitably accommodate both the display and keyboard, promoting ergonomic comfort and durability for industrial and office settings. This guideline is vital for producers, designers, and quality inspectors involved in creating or selecting operator workstations across India.
Overview
This specification outlines the criteria for machine operator desks and visual display unit (VDU) tables, emphasizing materials, construction techniques, measurements, and surface treatments. It requires a dual-tier layout to suitably accommodate both the display and keyboard, promoting ergonomic comfort and durability for industrial and office settings. This guideline is vital for producers, designers, and quality inspectors involved in creating or selecting operator workstations across India.
Audience
Contents
Structure
Frequently Asked
According to the 1994 edition of this code, operator tables should feature a two-tier design with an upper platform for the VDU and a lower one for the keyboard. Although specific measurements are not detailed here, commonly accepted ergonomic dimensions include a table height ranging from 700 to 750 mm, upper tier depth between 300 to 400 mm, lower tier depth around 250 to 300 mm, a minimum width of 900 mm, and a clearance height for legs no less than 650 mm. These dimensions facilitate comfortable use, with the keyboard positioned to allow elbows at approximately 90 degrees and the screen at eye level to minimize neck strain.
The tables' wooden surfaces must comply with the requirements specified in Clause 4 of IS 4414:1990, ensuring durability and quality suitable for operator use. Steel components are to be finished following surface preparation and coating processes outlined in Clauses 6.1 through 6.4, with an optional powder coating permitted per IS 13871:1993 upon purchaser request. These provisions guarantee structural strength, longevity, and aesthetic appeal.
Steel elements must undergo comprehensive surface preparation, including the removal of imperfections and contaminants through pickling and cleaning. Following this, phosphating treatment is applied as per IS 3618:1966 to enhance corrosion resistance and paint adhesion. A primer coat, typically red oxide or an aluminium primer conforming to IS 5660:1970, is then applied. Surfaces requiring filling are treated with putty and enamel in accordance with IS 110:1983. Additionally, powder coating as per IS 13871:1993 may be optionally applied if specified by the client.
Yes, the standard includes provisions for ergonomic accessories such as wrist rests. While these are not mandatory, Clause 5.3 notes that wrist supports can be optionally provided to enhance operator comfort and reduce wrist strain during use of machine operator or VDU tables. This recommendation aligns with ergonomic best practices aimed at minimizing repetitive strain injuries.
Manufacturers are required to affix a clear and durable mark identifying themselves on each table produced under this specification, ensuring traceability and accountability. Additionally, tables may bear the BIS Standard Mark indicating conformity to the standard, though this is optional. The marking must be legible, permanent, and positioned so as not to interfere with the table’s function or finish.
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