عنوان مقاله [English]
نویسنده [English]چکیده [English]
The surveying profession has been influenced by a rapid evolutionary path in terms of technology and innovation in recent years. Today, most surveyors generally use digital level, laser planes with mapping cameras known as total stations and GPS. Nevertheless, ISO (International Standard Organization) has so far been able to provide certain and specific standards for such new devices. ISO is still busy updating and implementing its early standards for older devices, such as EDM, theodolites, and levels. This paper presents the general and specific needs of surveyors for standards. Therefore, we describe two compound and simple field test procedures for determining the accuracy of leveling devices. The purpose of the compound procedure is to determine leveling precisely, and the simple procedure is considered for leveling in construction sites.