(1) Compliance with the standard for charging hole lids will be determined while walking topside along the length of the battery, observing each oven lid for only that time necessary to determine whether or not there is a visible emission coming from the charging hole casting and lid interface, but will not include smoke from burning of smoldering excess topside coal. The observer will then shift attention to the adjacent oven lids and check for emissions in the same manner. The observer will continue this procedure along the entire length of the battery. For the purpose of inspection, an ignited dampered oven requires that a flame is observed above any one charging hole. The dampered oven will be included in the calculations for determining the percentage of leaking lids if there is no flame visible above the plane of the opening on any single charging hole. The percentage of leaking lids will be calculated by dividing the number of leaking lids by the total number of lids on the in-service ovens on the battery and multiplying by 100. Oven lids on a maximum of six dampered ovens are exempt from this procedure provided they are ignited.

(2) Compliance with the standard for offtake piping will be determined while walking topside as close as possible to the centerline of the battery and observing the offtake piping of each oven for only that time necessary to determine whether or not there is a visible emission coming from the offtake piping on that oven. In the event such positioning results in an obstructed view, the observer may assume other positioning to allow a clear view of the emissions. The observer will then shift attention to the adjacent offtake piping and check for emissions in the same manner. The observer will continue this procedure along the entire length of the battery. For the purpose of inspection, an ignited dampered oven requires that a flame is observed above any offtake piping cap opening. The dampered oven will be included in the calculations for determining the percentage of leaking offtake piping if there is no flame visible above the plane of the opening on the offtake pipe. The percentage of leaking offtake piping will be calculated by dividing the number of leaking offtake piping by the total number of offtake piping on the in-service ovens on the battery and multiplying by 100. Offtake piping on an oven being charged and on a maximum of six dampered ovens, including an oven being pushed is exempt from this procedure provided that emissions from the dampered ovens are ignited once the oven is dampered.