Surgical - Import export

The T9731 is specifically designed for measure the adequate air flow rate in complete adherence to the standard EN 14683 for surgical masks testing. As shown in diagram C.1 on page 12 of the standard EN14683 , the instrument is equipped with two air flow meters of type Mass-flow with scales 0.0...20.0 nLitres/minute (2.12 of diagram - point C.2.1) servo driven valve controlled from the software (10 of the diagram - point C.2.4), and a double gauge / differential pressure measurement (M1 and M2) as expressly indicated in point C.2.2 . In order to comply with both the ISO accreditation standards and the expectations of the reference standard, the pressure measurements in “Differential" mode (or pressure drop) occurs in Pa or Pa/cm2 in case the sample area is set in the menu TST with area different from 1.00 cm2. The connecting "short form" attached to the manuals providesconnection to an external vacuum pump (C.2.3), not provided.

It consists of a mask body with ear straps, as well as a collar attached to it in a fixed way (or removable in the case of reusable mask, not yet available) which facilitates its use. The presence of this lanyard was born as a means of support to reduce the probability of viral contamination, or rather to avoid unnecessary accidental contamination when the user temporarily removes it after using it; In this case it may happen that the mask is slotted on a contaminated surface or the same user contamini while holding it momentarily in his hands to wear it.