Answered by Bob Pellissier, president, RKI Instruments Inc., Union City, CA. Calibration frequency is one of the most common subjects of questions regarding the use of gas detection instruments. Regulatory agencies typically refer users to follow manufacturers' recommended protocols for calibration. The calibration frequency for a gas detection instrument depends on how the customer will use it.
Step 1: Start with a square piece of origami paper. If you only have regular 8.5x11 paper, follow these instructions to make a square sheet. Step 2: Fold the paper in half by folding the top corner to the bottom corner.Step 3: Now fold the triangle in half by taking the left corner and folding it to the right.Step 4: Open and spread the top flap, then crease the left and right sides so you can flatten the flap down. Step 5: Turn the paper over so we can repeat the last step.Step 6: Make the left flap stand vertically, then open and squash down. Step 7: Fold the top layers of both sides to the center.tep 3: Now fold the triangle in half by taking the left corner and folding it to the right. Step 4: Open and spread the top flap, then crease the left and right sides so you can flatten the flap down. Step 5: Turn the paper over so we can repeat the last step.
Learn to make an easy origami swan that takes less than 10 steps: 1  Start with a square sheet of paper. 2  Fold in half on the diagonal. 3  Unfold. 4  Fold the left and right edges of the paper to meet the central crease made above. 5  Turn the paper over and repeat: fold the left and right edges to meet the central crease.earn to make an easy origami swan that takes less than 10 steps: 1  Start with a square sheet of paper. 2  Fold in half on the diagonal. 3  Unfold. 4  Fold the left and right edges of the paper to meet the central crease made above. 5  Turn the paper over and repeat: fold the left and right edges to meet the central crease.