Start with the news release Calculator is revised for new safety standard from Procter Machine Guarding, which we summarised at the time by saying "Procter Machine Guarding has revised its popular Safety Distance Calculator in accordance with ISO 13857, the new standard for machinery safety distances.". Several months prior to that, we featured the news release Understanding safety distances from Pilz Automation Technology: "The new standard for safety distances applies to both upper and lower limbs.".
 
In April 2008, we covered the news from Procter Machine Guarding - take a look at Machine guarding standards - the top ten tips which says: "This article presents ten things that machine specifiers and designers should know about machine guarding standards.".
 
Take a look also at the news release from Pilz Automation Technology, Package deal on machinery safety standards, as well as Understanding BS EN953:1998 from Procter Machinery Guarding, and Machine guarding standards and how to meet them from Procter Machinery Guarding.