How and to what extent are newly welded bottom joints tested?

Newly welded bottom joints shall be tested their entire length using liquid penetrant

Newly welded bottom joints shall be tested their entire length using a vacuum box and a solution film, or a tracer gas and detector

Newly welded bottom joints shall be tested their entire length using visual and ultrasonic examination

Newly welded bottom joints shall be tested their entire length using wet fluorescent magnetic particle examination