本文件规定了硫化橡胶或热塑性橡胶辊盖表观硬度的测定方法，以肖氏硬度表示，用于仅要求中等精度的测量。所使用的方法和设备基本上是ISO 48-4中所述的方法和设备，在这种情况下，测量是在经过处理的橡胶覆盖辊的曲面上进行的，而不是在平面试件上进行的。规定了肖氏A型和D型仪器，后者用于测量高硬度辊。 注:对于某些辊子，辊子表面的橡胶厚度可能会发生显著变化，这可能会影响测得的表观硬度。

This document specifies a method for the determination of the apparent hardness of vulcanized- or thermoplastic-rubber roller covers, expressed in Shore hardness, for measurement where only medium precision is required. The method and apparatus used are essentially those described in ISO 48-4, the measurements in this case being made on the curved surface of the conditioned rubber-covered roller rather than on a flat test piece. Shore type A and type D instruments are specified, the latter being used for measurements on rollers of high hardness. NOTE With some rollers, there can be significant variation in the thickness of the rubber over the surface of the roller, which could affect the measured apparent hardness.