The International Organization for Standardization (ISO). This ISO document is a working draft. ISO/TC 61/SC 11 N
937. Date: 2009-06-18. This third edition cancels and replaces the second edition (ISO 11833-1:2007), Table 5 of which has been revised. 22p. This part of ISO 11833 specifies the requirements for flat extruded sheets and pressed sheets of unplasticized poly(vinyl chloride) (PVC-U) and the test methods to be used to measure the required values.
It applies only to sheets of thickness not less than 1,0 mm.