Deviation Checks Clause Samples

Deviation Checks. Monthly gas chromatograph deviation checks shall be made on Gas composition mole percentages and resulting Gross Heating Value. Analyses of a sample of test Gas of known composition resulting when procedures that are in accordance with the above mentioned standards have been applied will be considered as acceptable if the resulting calculated Gross Heating Value is within plus or minus 5 BTU per Standard Cubic Foot of the known Gross Heating Value. If the deviation exceeds the tolerance stated, Gross Heating Value, relative density, and compressibility previously calculated will be corrected immediately. Previous analyses will be corrected to the point where the error occurred. If the point that the error occurred cannot be determined, previous analyses will be corrected for one-half the period since the last verification test, not to exceed a correction period of six months.