Maybe the new changes in D1.1 are to allow the use of electrodes recommended by its manufacturer. Examples are:
Lincoln Fleetweld 35LS (E6011)
Quote from Catalogue : Great for making tack welds under Innershield® deposits. 9
DC± Use Fleetweld 35LS with confidence on plated, dirty, painted,
or greasy steel which cannot be completely cleaned. It’s an outstanding stick choice for AC pipe
welding, for applications that require deep penetration, and in jobs where x-ray quality welds are required.
Lincoln Fleetweld 5P (E6010)
Quote from Catalogue "is a great choice for welding on dirty, rusty, greasy or painted steel — especially in vertical or overhead applications. Tolerates galvanized, plated, dirty, painted or greasy steel which cannot be completely cleaned".
However, there are electrode manufacturer like Kobelco which indicated in their catalogue some Tips for better welding, such as Remove rust, oil, grease, and water in the welding groove beforehand because such dirt can cause weld defects like pits and blowholes".
I have yet to find an electrode suitable for wet or damp surfaces.
What about other Code like ASME ? it states ASME VIII UW-30 LOWEST PERMISSIBLE TEMPERATURES FOR WELDING
Quote : It is recommended that no welding of any kind be done when the temperature of the base metal is lower than 0°F
(−20°C). At temperatures between 32°F (0°C) and 0°F (−20°C), the surface of all areas within 3 in. (75 mm) of the point where a weld is to be started should be heated to a temperature at least warm to the hand [estimated to be above 60°F (15°C)] before welding is started. It is recommended also that no welding be done when surfaces are wet or covered with ice, when snow is falling on the surfaces to be welded, or during periods of high wind, unless the welders or welding operators and the work are
Joey