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.
Each head weighed nearly two pounds, but only cost 11 percent more. The average weight was 30.75 ounces. At 99Â¢ per head, the actual cost per pound was only 51.5Â¢. Pound for pound, iceberg head lettuce is a whopping 60% less than the cost of leaf lettuce.he other day, we were buying some produce and Steve decided to compare leaf lettuce ($.89 per head) versus iceberg / head lettuce ($.99 per head). We know that leaf lettuce contains more nutrients, but what we hoped to discover was the actual cost per pound for each. It was an amazing discovery.