NFPA 2112

AMERICAN FLAME RESISTANCE STANDARD FOR PERSONAL FIRE-RESISTANT PROTECTIVE GARMENTS

The NFPA 2112 standard specifies the basic minimum requirements and test methods for flame resistance for personal fire-resistant protective garments.

REQUIREMENTS FOR NFPA 2112 STANDARD CERTIFICATION

NFPA 2112. STANDARD ON FLAME RESISTANCE GARMENTS FOR PROTECTION OF INDUSTRIAL PERSONNEL AGAINTS FLASH FIRE

SCOPE: To specify the minimum performance requirements and test methods for flame-resistant fabrics and components and the design and certification requirements for garments for use in areas at risk from flash fires.

ASTM F2700

Thermal Protective Performance (HTP) > 6.0 cal/cm2 and 3.0 cal/cm2:
Fabric should be tested as received and after 3 washings.
Requirements to comply with:

Spaced HTP > 25 J/cm2 (6.0 cal/cm2).
Contact HTP > 12,6 J/cm2 (3.0 cal/cm2).

The test consists of applying a combination of radiant and convective heat.

ASTM D6413

Flame resistance test. Char length ≤ 100 mm (4 in.): Fabric should be tested as received and after 100 washings. Requirements to comply with:

- Char length ≤ 100 mm (in any direction).
- After-flame < 2 s.
- No melting and dripping.

Test has to be done during 12 seconds. The gas used is methane. Char length should be measured applying different weights, according to the weight of the fabric:

Weight of the fabric	Weight to be applied
68 – 203 g/m (2 – 6 oz/yd2)	100 g (4 oz)
203 – 508 g/m (6 – 15 oz/yd2)	200 g (8 oz)
508 – 780 g/m (15 – 23 oz/yd2)	300 g (12 oz)
> 780 g/m (> 23 oz/yd2)	475 g (16 oz)

According to specifications of NFPA 2112 sec 8.4

Heat and thermal shrinkage resistance < 10%:
Fabric should be tested as received and after 3 washings.
Test is done at 260ºC during 5 min.
Requirements to comply with:

Thermal shrinkage < 10%.
No melting and dripping.
No separation of layers.
No ignition.

ASTM F1930

Manikin Test. Predicted burning area of burn injury (2nd and 3rd degree) < 50%.
Three garments should be tested after 1 washing.
The design of the garments is defined by the standard.
Garments are tested together with standard undergarments: briefs of 100%CO of 170 g/m2 and a T-shirt of 100%CO of 140 g/m2.
Exposure time: 3 seconds.
Heat flux: 84 KW/m2
Predicted burn injury on the total area of the manikin, except hand and feet. For this test, therefore, the head, is included in the calculations.
Number of tests: 3