Common use of Volume Measurement Clause in Contracts

Volume Measurement. 4.4.1. The method of measuring total dilute exhaust volume incorporated in the constant volume sampler shall be such that measurement is accurate to ∀ 2 per cent. 4.4.2. Constant volume sampler calibration The constant volume sampler system volume measurement device shall be calibrated by a method sufficient to ensure the prescribed accuracy and at a frequency sufficient to maintain such accuracy. An example of a calibration procedure which will give the required accuracy is given in Appendix 6 to this annex. The method shall utilise a flow metering device which is dynamic and suitable for the high flow-rate encountered in constant volume sampler testing. The device shall be of certified accuracy traceable to an approved national or international standard.

Volume Measurement. 4.4.1. The method of measuring total dilute exhaust volume incorporated in the constant volume sampler shall be such that measurement is accurate to ∀ ± 2 per cent. 4.4.2. Constant volume sampler calibration The constant volume sampler system volume measurement device shall be calibrated by a method sufficient to ensure the prescribed accuracy and at a frequency sufficient to maintain such accuracy. An example of a calibration procedure which will give the required accuracy is given in Appendix appendix 6 to this annex. The method shall utilise a flow metering device which is dynamic and suitable for the high flow-rate encountered in constant volume sampler testing. The device shall be of certified accuracy traceable to an approved national or international standard.