How do you define dietary veganism?!

No what you describe is a strict vegetarian. There are no differing levels of veganism, either you are vegan or you aren't. If you use non-food products sourced from animals when alternatives are available you are not vegan.

EDIT: I eat foods which state they "may contain traces" of animal products because many vegan companies don't own their own production equipment and instead they rent factory space from other companies during their downtime. So during the day it may be used to make foods which contain dairy, but during the night they make a vegan product however they are not allowed to say that it will contain no animal products since animal products are present in the same factory. I am not opposed to eating a single molecule of animal tissue, I am opposed to supporting companies which profit from the slaughter of animals and environmental degradation. So it would be illogical for me to avoid products from an ethical company on the basis that I may unknowingly consume a few trace elements.

However someone knowingly eating sugar produced with bone char or any other animal product is not vegan, lucky for me they don't use bone char to produce sugar in Australia.

"Dietary veganism" or strict vegetarians (that's what they actually are) are people who follow a vegan diet but not a vegan lifestyle. Depending on why a person is a "dietary vegan" they may or not eat sugar processed with bone char and foods that came into contact with dairy. However, I would not consider them vegans.

If you know your sugar was filtered through bone char, you can leave it out and eat raw sugar instead.

A vegan diet uses NO food, food product, or food process that uses animals or animal parts in any way.

If your oatmeal is made on a table with milk powder all over it, then you should avoid it.

Dietary vegans follow only the vegan diet but may wear leather, wool or silk. At least, this is my opinion of the lifestyle. Eating sugar is fine- it's vegan, and I also think the products you describe are allowed, although I would suggest a diet of natural, unprocessed foods.
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