Sheffield testing-head acc. EN 149
(item no. 1638)
to perform various breathing resistance tests or determination of CO2 content in inhalation air,
e.g. according to
• EN 149, §§ 8.7, 8.9.2, 8.9.3
• EN 13274, §§ 7.3.2, 7.3.3
with concentric aspiration-, pressure- and measuring tube in the mouth area
with stand, each 90° swingable:
to the front, to the back, to the left, to the right
with hose connections nominal diameter 15 for inhalation and exhalation and nominal diameter 4 for pressure measurement
