This GSO standard specifies requirements for flexible loadbearing combustion modified, polyurethane cellular materials, manufactured in block, sheet and strip form, in moulded and fabricated shapes and as reconstituted material. NOTE 1 Annex A reproduces the relevant test requirements. In addition to the definitive requirements, this standard also requires the items detailed in Clause 3 to be documented. For compliance with this standard, both the definitive requirements and the documented items have to be satisfied. NOTE 2 Recommended applications for the range of flexible polyurethane cellular materials specified in this standard are listed in Annex B.