Ashfaq,
They also have 'The Professional's Advisor on Procedure Qualification' which I have found pretty useful. Has several sample forms for various codes (blank and with sample completions), and other cross reference tables between D1.1, D1.5, B2.1, ASME & API.
Add that to John's suggestion of B2.1 and you will have a very good reference.
Have a Great Day, Brent