This document defines the sampling plans and procedures for inspection by attributes (measurable properties) of sawn timber lots exhibiting a homogenous distribution of characteristics. It also gives control regulations and conditions for conformity or non conformity of a lot in view of the agreed specification. This document applies to any sawn timber products claimed to comply with specifications defined in the sales contract. It does not cover the spread of different qualities within a grade or between the contracted grades. In case of a dispute, a sampling carried out only by customer or supplier is not valid as it cannot be guaranteed to be free from manipulation. Furthermore parties are free to enlarge the sampling or make use of another method provided an agreement is made between the interested parties.