Standard Input-Output Norms require imported inputs to match prescribed proportions for ready-to-assemble office furniture exports. Standard Input-Output Norms prescribe a SION for Ready-to-Assemble office furniture (A2714) listing required inputs and measurement or valuation rules - including particle board/MDF, decorative paper and edge, urea formaldehyde resin, hot melt glue, finishing lacquer components and hardware - and require determination of allowable input proportions and assurance that imported goods are those actually used or required in the export product.