Material portion.
Material portion. A subsample, component, or sublot which is determined to be inferior to the contract or declared grade. A subsample is a material portion when it has sour, musty, or commercially objectionable foreign odors, when it is heating; or when it is of distinctly low quality. A component is a material portion when it is infested or when it is determined to be inferior in quality by more than one numerical grade to the contract or declared grade. A sublot is a material portion when a factor result causes a breakpoint to be exceeded or when a factor result exceeds specific sublot contract requirements. A sublot designated a material portion shall include only one sublot.