This might help:
http://www.techdrawingtools.com/12/l1201.htm
though it is based on a software package, it does give some basics. Best is to get some examples and some blank isometric paper. I am sure there are plenty of books available on the subject.
Please do not rely on standards alone. They only prescribe a minimum legal requirement. When we consider peoples wellbeing, we have a duty of care to assess the situation more thoroughly. For example, in the Alumina Refining industry, the main hazard is exposure to hot caustic solution. We...
Have to agree with other comments even if a bit cynical. I have always found it much more expedient to do simple isometrics by hand sketch. If you look around - you should be able to get some isometric ruled A3 (sorry - metric) paper. This will make the task much easier. I fear that for the...