Unfortunately, I couldn't find a free PDF download of the IEC 60794-1 standard. The standard is copyrighted by the IEC, and it's not publicly available for free download.
Here's a brief paper on IEC 60794-1:
You're looking for a paper on IEC 60794-1 and a possible free PDF download. Iec 60794-1 Pdf Free Download
The IEC 60794-1 standard provides specifications for optical fiber cables used in telecommunication networks. The standard covers the requirements for the design, construction, and testing of optical fiber cables. Unfortunately, I couldn't find a free PDF download
IEC 60794-1: Standard for Optical Fiber Cables Iec 60794-1 Pdf Free Download