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Dräger

CPS 7900 Gas-Tight Suit Type 1a EN943

Dräger CPS 7900 Gas-Tight Suit Type 1a EN943 — Hazmat response, CBRN protection, chemical incidents.

Components & Design

Component data being added…

Technical Data

Classification Type 1a gas-tight protective suit
Certification EN943 part 1&2, NFPA 1994 Class 2 (first suit approved), SOLAS compliant
Protection Against gaseous, liquid, aerosol, solid hazardous substances, warfare agents
Design Fully encapsulating, worn over SCBA
Use Cases Industrial chemicals, extreme hazard incidents, explosive atmospheres

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Common failures & inspection points

Heat and flame transmission test (EN ISO 9151) - Flame heat flux 80 kW/m²

Verify suit/clothing can withstand 80 kW/m² flame heat flux without exceeding temperature threshold on inner surface; check time-to-temperature criteria per performance level (Level 1 vs Level 2)

Radiant heat transmission (EN ISO 6942) - Radiant heat flux 40 kW/m²

Test thermal transmission against radiant heat at 40 kW/m²; measure inner surface temperature rise; verify non-melting and integrity of outer membrane

Interface overlap and coverage during movement

Visually inspect with hands raised fully above head and bending forward to fingertips touching ground without knee bending; ensure wrists and ankles remain covered; verify jacket-trouser overlap retained

Water penetration and water vapor transmission (Y-rating)

Test water barrier integrity against liquid splash; measure water vapor transmission (breathability) across polyurethane membrane layer; verify hydrostatic pressure resistance

Mechanical resistance and chemical protection (X-rating, Z-rating)

Verify external padding on knees/elbows; check seam integrity and stitching quality; test resistance to abrasion, tearing, and puncture; verify chemical resistance coating on polyester areas

Type-general inspection and maintenance points for this equipment category — not model-specific.

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Equipment Model #149049 · ✓ still in production