Niosh S - Special Or Critical User Instructions; Cautions And Limitations Of Emergency Breathing Support Systems (Ebss) - MSA G1 SCBA Operating Manual

1.1.3 NIOSH S - Special or Critical User Instructions

• Approved for use at temperatures above -25°F (-32°C).
• Approved only when the compressed-air cylinder is fully charged with air meeting the requirements
of CGA G-7.1, Section 2.1, Quality Verification Levels (Grades) D, or equivalent specifications.
• In fire service applications, MSA recommends breathing air quality in accordance with NFPA 1989,
Standard on Breathing Air Quality for Emergency Services Respiratory Protection. The cylinder
shall meet applicable Department of Transportation (DOT) specifications.
• Do not alter this SCBA. Alteration will void the Intrinsic Safety rating and may affect the intrinsic
safety of the device. Misuse or abuse of the heads-up display (HUD), control module, power
module, or speaker module, or using this equipment in a manner or situation not intended by the
manufacturer, may result in damage to the HUD, control module, power module, or speaker
module, and personal injury or death to the user or persons dependent on the user. Always
examine the HUD, control module, power module, and speaker module for damage before use. If
damage is found, immediately remove the device from service. The HUD, control module, power
module, and speaker module are approved intrinsically safe and conform to UL 913 6th edition,
Class I, Division 1, Groups C and D, Temperature Rating T1.
• Use the SCBA with adequate skin protection in conditions where gases and vapors that poison by
skin absorption (for example, hydrocyanic-acid gas) exist.
• Approval for use against CBRN chemical warfare agents is maintained only when using approved
components and following instructions listed on the NIOSH approval matrix (P/N 10187241).
• For non-CBRN applications see Approval Insert (P/N 10187230).
• Do not mark the SCBA with stamps, labels, paint, or other methods. Use of such markings may
interfere with apparatus use or constitute a flammability hazard.

1.1.4 Cautions and Limitations of Emergency Breathing Support Systems (EBSS)

• Activation or engagement of EBSS in either the donor or receiver mode changes the SCBA use to
Escape-Only. Approved service time for either the donor, or the receiver is no longer applicable.
• EBSS may not be engaged or activated in donor mode after the donor End-of-Service-Time-Indi-
cator (EOSTI) has activated.
• Users must be fully trained in the operation of EBSS in accordance with a training program
conforming to the requirements of NFPA Standards 1404, Fire Service Respiratory Protection
Training and 1500, Fire Department Occupational Safety and Health Program.
• Simultaneous connection of more than two users, one donor and one receiver, is not permitted.
SCBAs operated in EBSS mode are approved for escape only.
• Entry approval only restored after re-charge, either host or donor.
• Connection not to be established after donor/host EOSTI activation.
• Limited to one donor/receiver (host/parasite) pair. Not suitable for connection in CBRN environ-
ment.
G1 SCBA 2018 Edition
Safety Regulations
8
US