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.
The USDA has the best list of foods with vitamin K. In the table below, choose foods that add up to less than your RDA (Recommended Dietary Allowance) for vitamin K (90 micrograms per day for women 19 to 70+ years or 120 micrograms per day for men 19 to 70+ years).eafy green vegetables (kale, collards, spinach, turnip greens, beet greens, mustard greens, dandelion greens green leaf lettuce), Brussels sprouts, broccoli, green onions, parsley, asparagus and sauerkraut contain more than the RDA of vitamin K for men or women.