B08_-_Solictation_Amendment_W911SR-19-Q-ABMS.pdf

Amendment 0001 for W911SR-19-Q-ABMS is issued to provide answers to industry-submitted questions. The closing date of the solicitation will be extended to July 12, 2019 @ 5:00 PM Eastern Daylight Time (EDT). The question period is unchanged and remains July 5, 2019 5:00 PM EDT. Questions received after this date and time, will not be CONSIDERED. No telephone requests will be honored. All terms, conditions, requirements and specifications of the original solicitation remain the same.

Question 1: (Section 2.a.iii) - What is meant by “this will be a closed loop humidified human like bidirectional flow path with minimal dead space volume”?

“Closed loop humidified” is similar to a human breathing path. A human trachea is short; there is little space where air dwells between breaths. Therefore, small space is breathing like human lungs. If there are long hoses or large voids (dead space) in the ABMS, it is not “human like”.

Question 2: Does the solicitor desire the ABMS to be enclosed to monitor the environment around the head form?

It is not required for the ABMS to be enclosed.

Question 3: (Section 2.a.iv.b) - What recorded data will be input variable for the ABMS?

breaths per minute volume of breath breath frequency

Question 4: (Section 2.a.iv.c) - What is the ‘flow’ based mode for current regulatory testing? Is this mode to constantly exhale? Is this mode meant to flow a certain volume to quantify the amount of “work” of the ABMS/test?

Current regulatory testing is available via NIOSH at https://www.cdc.gov/niosh/index.htm.

Question 5: (Section 2.a.iv.d) - For the temperature control at the mouth (on the inhale), does this requirement state the environment surrounding the ABMS will be controlled with this requirement? Or is the requirement for the exhale only?

Temperature control at exhale is to simulate the breath of a human. Testing is done on closed systems, like a rebreather. That air temperature depends on how well the rebreather system works.

Question 6: (Section 2.a.iv.e) - Is the requirement for the exhale of the ABMS to control the oxygen concentration on the exhale?

No

Question 7: (Section 2.a.v.a) - What are the units for the ±0.02%? Is the percent of reading? Is this volume percent?

It is percent of concentration in the air.

Question 8: (Section 2.a.v.b) - What are the units for the ±0.01%? Is the percent of reading? Is this volume percent?

It is percent of concentration in the air.

Question 9: (Section 2.a.v.c) - Are their specific units and accuracies for the system pressure?

No.

Question 10: (Section 2.a.vi.f) - What are the expected inputs from the user?

Gas concentrations may vary. These can be, but are not limited to:

Carbon Dioxide Oxygen Nitrogen Temperature of breaths Frequency of breaths

Question 11: (Section 2.a.vii) - Is the desire to have preprogrammed metabolic loads/test scenarios for the user to run?

NIOSH test protocols are the basis for our testing. Other programmed tests are done ad hoc.

Question 12: (Section 2.a.viii.c) - What are the stressor values?

Stressor Values include, but are not limited to:

Volume of oxygen Volume of co2 Expired pressure peak Inspired pressure peak Inspired oxygen Inspired co2 Inspired dry bulb temperature Inspired wet bulb temperature Expired dry bulb temperature Expired wet bulb temperature Nitrogen bias / correction

Standard temperature and pressure correction factor

Question 13: (Section 2.1) - What is meant by a non-developmental item?

Pursuant to FAR 2.101, “Nondevelopmental item” means:

(1) Any previously developed item of supply used exclusively for governmental purposes by a Federal agency, a State or local government, or a foreign government with which the United States has a mutual defense cooperation agreement;

(2) Any item described in paragraph (1) of this definition that requires only minor modification or modifications of a type customarily available in the commercial marketplace in order to meet the requirements of the procuring department or agency; or

(3) Any item of supply being produced that does not meet the requirements of paragraphs (1) or (2) solely because the item is not yet in use.