Russian standards in English translation

What is the right way to choose a translator who specialises in Russian standards in English translation? I have never encountered this before, so it is important for me to hear your recommendations on who can translate SP 26.13330.2012

The author, you have to understand right away, if it's a one-time translation, I would then look for a translator. But if it is a permanent one, I would go to a company

When I personally had to deal with this, I looked for a company with experienced translators. Of course, I tried to find as many reviews as I could, comparing conditions and prices. In the end, I did find a good and favourable option. You can also find more information here on how to order a translation of SP 26.13330.2012 in English https://meganorms.com/sp-26-13330-2012.html