For example, in bondid hygrogram, the absolute humidity bleaching Board for up to 6%, and the absolute unbleached kraft paper up to 7.5% humidity.

• 例如，在相的湿量下，不染黑纸板的绝差湿量可达6%25，而未不染黑牛皮纸的绝差湿量可达7.；5%25。