Posted on April 2, 2019April 4, 2019 by Pulse AssentISO 21539:2019 Ships and marine technology. Testing specification for walkways using electrical resistance trace heating. Link: ISO 21539:2019 Ships and marine technology. Testing specification for walkways using electrical resistance trace heating. Source: BSI Standards Related Posts:Government sets out plan to make UK a global…Funding helps UK distilleries fuel a greener futureUK supports international efforts to protect over…Government seeks views on sustainable approach to…£102 million government backing for nuclear and…