ISO/TR 18931-2001 成像材料 湿度测量和控制建议

标准号：ISO/TR 18931-2001
中文标准名称：成像材料 湿度测量和控制建议
英文标准名称：Imaging materials - Recommendations for humidity measurement and control
标准类型：G80
发布日期：1999/12/31 12:00:00
实施日期：1999/12/31 12:00:00
中国标准分类号：G80
国际标准分类号：37.040.99
适用范围：This Technical Report discusses devices in photographic standardization that are used as hygrometers and humidistats in the measurement and control of relative humidity (RH) in test chambers and storage areas. Special attention is given to situations where a photographic standard specifies controlling relative humidity to ±2 % RH or better. Electric hygrometers are recommended for their precision, low cost, and accuracy when properly calibrated. Calibration can be done either by the vendor or in-house by a dew-point measurement. Where the budget permits, dew-point combined with ambient temperature measurements (converted to relative humidity) may be the only sensor system.