5. Testing
5.1 The test specimen shall conform to all requirements of Test Method C42/C42M or Practices C31/C31M or C192/ C192M applicable to beam specimens and shall have a test span within 2 % of being three times its depth as tested. The sides of the specimen shall be at right angles with the top and bottom. All surfaces shall be smooth and free of scars, indentations, holes, or inscribed identification marks.