Common use of MEASURING EQUIPMENT Clause in Contracts

MEASURING EQUIPMENT. The receiver shall have a relative spectral sensitivity in substantial agreement with the relative spectral luminous efficiency for the ICI7 standard photometric observer for photopic vision. The sensitive surface of the receiver shall be covered with a diffusing medium and shall have at least twice the cross-section of the light beam emitted by the optical system. If an integrating sphere is used, the aperture of the sphere shall have a cross- sectional area at least twice that of the parallel portion of the beam. The linearity of the receiver and the associated indicating instrument shall be better than 2 per cent of the effective part of the scale. The receiver shall be centred on the axis of the light beam.

MEASURING EQUIPMENT. The receiver shall have a relative spectral sensitivity in substantial agreement with the relative spectral luminous efficiency for the ICI7 ICI 7/ standard photometric observer for photopic vision. The sensitive surface of the receiver shall be covered with a diffusing medium and shall have at least twice the cross-section of the light beam emitted by the optical system. If an integrating sphere is used, the aperture of the sphere shall have a cross- cross-sectional area at least twice that of the parallel portion of the beam. The linearity of the receiver and the associated indicating instrument shall be better than 2 per cent of the effective part of the scale. The receiver shall be centred on the axis of the light beam.

MEASURING EQUIPMENT. The receiver shall have a relative spectral sensitivity in substantial agreement with the relative spectral luminous efficiency for the ICI7 ICI17 standard photometric observer for photopic vision. The sensitive surface of the receiver shall be covered with a diffusing medium and shall have at least twice the cross-section of the light beam emitted by the optical system. If an integrating sphere is used, the aperture of the sphere shall have a cross- sectional area at least twice that of the parallel portion of the beam. The linearity of the receiver and the associated indicating instrument shall be better than 2 per cent of the effective part of the scale. The receiver shall be centred on the axis of the light beam.

MEASURING EQUIPMENT. The receiver shall have a relative spectral sensitivity in substantial agreement with the relative spectral luminous efficiency for the ICI7 ICI14 standard photometric observer for photopic vision. The sensitive surface of the receiver shall be covered with a diffusing medium and shall have at least twice the cross-section of the light beam emitted by the optical system. If an integrating sphere is used, the aperture of the sphere shall have a cross- cross-sectional area at least twice that of the parallel portion of the beam. The linearity of the receiver and the associated indicating instrument shall be better than 2 per cent of the effective part of the scale. The receiver shall be centred on the axis of the light beam.