对常用建筑材料进行了吸附等温线测量。测量方法是将这些材料的小样本放在一品脱大小的罐子里，放在饱和盐的水溶液上方，水溶液可以提供不同的环境相对湿度。罐子保持恒温，直到封闭的试样达到其稳态平衡含水量。在给定温度下绘制的平衡含水量与环境相对湿度的关系图给出了吸附等温线。对于最初干燥的样品（吸附等温线）和最初饱和的样品（解吸等温线），获得了单独的吸附等温线。 材料包括糖松、南方松、室外级胶合板、华夫板壁板、定向刨花板、刨花板、纤维板护套、坚固支撑纤维板、牛皮纸、泡沫芯护套、普通石膏板和乙烯基覆盖石膏板。将吸附测量值与文献中报道的其他测量值进行了比较。从目前的工作中得到的数据低于之前报道的许多吸附测量值。然而，在平衡含水量为0到0的所有情况下，偏差都很小，小于0.05 kg/kg。 每公斤30公斤。本研究中干燥剂干燥的使用与之前研究中烘箱干燥的使用是一种可能的解释。关键词:水蒸气、吸附性能、建筑、材料、测量、相对湿度、稳态、水分、平衡、温度、吸附、解吸、木材、胶合板、木刨花板、纤维建筑板、石膏板、板材、比较、干燥科学:研讨会论文，马里兰州巴尔的摩，1992年

Sorption isotherm measurements were carried out for common building materials. The measurements were made by placing small specimens of the materials in pint-size jars above saturated salt-in-water solutions that gave various ambient relative humidities. The jars were kept at constant temperature until the enclosed specimens reached their steady-state equilibrium moisture content. The equilibrium moisture content plotted versus ambient relative humidity at a given temperature gave the sorption isotherm. Separate sorption isotherms were obtained for specimens initially dry (adsorption isotherm) and for specimens initially saturated (desorption isotherm). The materials included sugar pine, southern pine, exterior-grade plywood, waferboard siding, oriented strand board, particleboard, fibreboard sheathing, sturdy-brace fibreboard, kraft paper, foam-core sheathing, plain gypsum board and vinyl-covered gypsum board. The sorption measurements were compared to other measurements reported in the literature. Data from the present work were found to lie below many of the previously reported sorption measurements. However, the bias is small, less than 0.05 kg/kg in all cases where equilibrium moisture contents ranged from 0 to 0.30 kg/kg. The use of desiccant drying in this study versus oven drying in previous studies is examined as a possible explanation.KEYWORDS: water vapor, sorption properties, buildings, materials, measuring, relative humidity, steady state, moisture, equilibrium, temperature, adsorption, desorption, wood, plywoods, wood particle boards, fibre building boards, gypsum plasterboard, boards, comparing, desiccants