STANDARD ON FLAME RESISTANCE GARMENTS FOR PROTECTION OF INDUSTRIAL PERSONNEL AGAINST FLASH FIRE
INDUSTRIES:
FABRICS
TEST METHOD
ASTM 2700
DESCRIPTION
Thermal Protective Performance (HTP) > 6.0 cal/cm2 and 3.0 cal/cm2
Fabric should be tested as received and after 3 washings.
– 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 D613
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:
Requirements to comply with:
Char length ≤ 100 mm (in any direction). After-flame < 2 s.
No melting and dripping.
| Weight of the fabric | Weight to be applied |
|---|---|
| 68 – 203 g/m (2-6oz/yd2) | 100g (4 oz) |
| 203 – 508 g/m (6 – 15 oz/yd2) | 200g (8 oz) |
| 508 – 780 g/m (15 – 23 oz/yd2) | 300g (12 oz) |
| > 780 g/m (>23 oz/yd) | 475g (16 oz) |
According to specifications
of NFPA 2112 sec 8.4
resistance < 10%
Maximum value 6mmm
ASTM F1930
Manikin Test.
Predicted burning area of burn injuri
(2nd and 3rd degree) < 50%.
Three garments sho u ld 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.
The final result is the total predicted
area of 2nd and 3rd degree burn injury
(without taking into account feet and hands
but including the head). It should be no
more than 50%.
STANDARD FOR ELECTRICAL SAFETY IN THE WORPLACE
INDUSTRIES WHERE IS APPLICABLE:
FABRICS:
Two requirements standard to comply with depending on the final garment application:
ASTM F 1506
Standard Performance Specification for Flame Resistant
and Arc Rated Textile Material For Wearing Apparel
For Use By Electrical Workers Exposed to Momentary
Electric Arc and Related Thermal Hazards.
ASTM F 1891
Standard Specification for Arc and
Flame Resistant Rainwear.
REQUIREMENTS FOR ASTM F 1506
TEST METHOD
ASTM D 5034
DESCRIPTION
Breaking Load and Elongation of Textile Fabrics Test.
For woven fabrics:
- 3 – 5,9 oz/yd²) ≥ 134 N
- (6 – 8,4 oz/yd²) ≥ 179 N
- (8,5 – oz/yd²) ≥ 223 N
ASTM 1424
Tear Resistance:
3 – 5,9 oz/yd²) ≥ 11 N
(6 – 8,4 oz/yd²) ≥ 18 N
(8,5 – oz/yd²) ≥ 22 N
ASTM 434
Seam Slippage:
Maximum value 6mmm
AATCC 61
Colorfastness to Laundering.
For woven and knit fabrics:
Minimum class 3
AATCC 132
Colorfastness to Dry-cleaning.
For woven and knit fabrics:
Minimum class 3
AATCC 135
Dimensional Change.
For woven fabrics: < 3%
ASTM D 6413
Flame resistance test.
Char length ≤ 150 mm (6 inches).
Each fabric layer should be tested.
5 samples on each direction should
be tested as received and after
25 washings.
Requirements to comply with:
Char length ≤ 150 mm
After-flame < 2 s
Not melting and dripping.
ASTM D 3786
Bursting Strength Test.
For knit fabrics:
(3 – 8,1 oz/yd²) ≥ 179 N
(8,1 – 16 oz/yd²) ≥ 268 N
ASTM D 3786
Bursting Strength Test.
For single layers systems only, 3
arc test specimensare necessary
to determine the average after-flame
(should be not more than 5s)for which
the incident energy is equal
to or greater than the ATPV or EBT.
REQUIREMENTS FOR ASTM F 1891
TEST METHOD
ASTM D3393
FTMS No.191A
Method 5516
DESCRIPTION
Leak Resistance – Fabric and Seams.Waterproofness of Rainwear Fabric shall withstand water pressure without leaking at 207 kPa. Waterproofness of Seams shall withstand water pressure without leaking
at 20,7 kPa for 2 min.
For woven fabrics:
(6 – 8,4 oz/yd²) ≥ 179 N
(8,5 – oz/yd²) ≥ 223 N
ASTM D1117
Trapezoidal Tearing Resistance Test
≥6 lb or 26,7 N for warp and
weft direction.
ASTM D1388
(optional)
Stiffness of Rainwear Fabrics.
Cantiveler test. Option A. This test consists
of measuring the stiffness of the fabric.
Samples of 25 mm x 150 mm
are used.
AATCC 6413
Flame resistance test. Char lenght
≤ 150 mm (6 in.)
5 samples on each direction should be
tested as received and after 5 washings.
Requirements to comply with:
Char length ≤ 150 mm
After-flame < 2 s
No melting and dripping.
AATCC 6413
Arc rating ≥ 5 cal/cm2
No melting and dripping.
The test should be carried out after
3 washings followed by one drying according
to care instructions from the manufacturer.
If no cleaning instructions are provided, fabric
should be washed according to AATCC
Method 135 (3, IV A iii) followed by one drying