There are settings for both gas pressure and flow rate. These can vary depending upon the welding position, metal type/thickness, type of gas used, and conditions (wind, drafts etc.) My welding instructor told us that 20-20 is a good place to start (20 psi, 20cfm flow).
It is the one lettuce that doesn't have a lot of Vitamin K. One cup of iceberg lettuce contains only about 13 micrograms (mcg) of Vitamin K. This is a low amount and should be safe for you to use as part of your diet while on CoumadinÂ® (warfarin). Thanks for writing, Timothy S. Harlan, MD, FACP. Dr. Gourmet.
Blueberries and Vitamin K. One cup of frozen, sweetened blueberries provides 40.7 micrograms of vitamin K, while 1 cup of raw blueberries contains 28 micrograms. Comparing this to 1 cup of cooked spinach, which provides 889 micrograms of vitamin K, blueberries provide relatively little of this important nutrient. However, because vitamin K is an important factor in good health, adding any vitamin K to your diet is positive.