Section 67
SEC. 67. Before weighing any merchandise the weigher must see that the beam is accurately balanced. As correctness of weights depends very much upon the accuracy of the poise, the beam should always be kept clean and frequently tested will the standard. A fairly even beam indicates the weight, but as in weighing merchandise it seldom happens that the beam will stand at an exact poise, but will go either above or below an even beam, the weight shall be taken on the rising beam. Weighers are required to mark the weight on each single package weighed.