GOST R ISO 17123-5-2011 國家測量一致性體系.光學及光學儀器.測試大地測量和測繪儀器領域的程序.第5部分.電子準距儀
State system for ensuring the uniformity of measurements. Optics and optical instruments. Field procedures for testing geodetic and surveying instruments. Part 5. Electronic tacheometers