Furniture and components are exposed to a wide variety of stresses in daily use. At the same time, Rainbow must meet high demands in regard to safety, quality and durability. To ensure that furniture and components can meet these demands, testing of individual components and also the finished product is important. This applies to the development phase and just as much quality assurance in production. Last but not least, furniture and components must comply with the specification of numerous national and international standards or certifications

A good ergonomic office chair, as defined by the Occupational Safety and Health Administration (OSHA), "provides necessary support to the back, legs, buttocks, and arms, while reducing exposures to awkward postures, contact stress, and forceful exertions."