Frequently Asked Questions
- Tensile test is known as a basic and universal engineering test to achieve material Parameters such as ultimate strength, yield strength, % elongation, % area of reduction and Young’s modulus.
- These important parameters obtained from the standard tensile testing are useful for the selection of engineering materials for any applications required.
- The tensile testing is carried out by applying longitudinal or axial load at a specific extension rate to a standard tensile specimen with known dimensions (gauge length and cross sectional area perpendicular to the load direction) till failure.
- The applied tensile load and extension are recorded during the test for the calculation of stress and strain.
- A range of universal standards provided by Professional societies such as American Society of Testing and Materials (ASTM), British standard, JIS standard and DIN standard provides testing are Selected based on preferential uses.
- Each standard may contain a variety of test standards suitable for different mate ials, dimensions and fabrication history.
GSM – weight per unit area | Air Permeability |
Tensile Strength | UV Accelerated Exposure Testing |
Tear Strength | Wet ability |
Elongation | Colour Testing |
KARAM only follow EDANA (ERT) References for testing. Equivalent other International references are also mentioned
EST | EDANA | INDA | ASTM | ISO |
Tensile Strength | ERT 20.2-89 | IST 110.4-95 | D 5035-95 | ISO 9073-3:1989 |
Thickness | ERT 30.5-99 | IST 120.1 | — | ISO 9073-2: 1995(E) |
Weight | ERT 40.3-90 | IST 130.1 | D 3776-96 | ISO 9073-1: 1989 |
Tear Strength | ERT 70.4-99 | IST 100.2-95 | D 5733-95 | ISO 9073-4: 1997 |
Air Permeability | ERT 140.1-99 | IST 70.1 | D 737-96 | ISO 9237:1995 |
Liquid Strike Through | ERT 150.4-99 | IST 70.3-98 | — | ISO 9073-8: 1995 |
ROLL DIA | ||||||||
(Cms) | 30 | 40 | 50 | 60 | 70 | 80 | 85 | 90 |
GSM | ROLL LENGTH (Mtrs) | |||||||
10 | 1280 | 2400 | 3800 | 5550 | 7550 | 9900 | 11250 | 12600 |
15 | 850 | 1585 | 2550 | 3675 | 5050 | 6600 | 7500 | 8400 |
17 | 760 | 1400 | 2250 | 3250 | 4450 | 5800 | 6600 | 7400 |
20 | 640 | 1190 | 1900 | 2770 | 3775 | 4950 | 5600 | 6300 |
25 | 500 | 1000 | 1500 | 2200 | 3000 | 4000 | 4500 | 5000 |
30 | 425 | 795 | 1265 | 1840 | 2525 | 3300 | 3700 | 4200 |
35 | 370 | 685 | 1085 | 1575 | 2150 | 2835 | 3600 | 4450 |
40 | 320 | 600 | 950 | 1380 | 1890 | 2480 | 2800 | 3150 |
45 | 285 | 530 | 845 | 1225 | 1680 | 2210 | 2500 | 2800 |
50 | 250 | 475 | 760 | 1100 | 1740 | 1985 | 2245 | 2520 |
54 | 240 | 440 | 705 | 1020 | 1400 | 1835 | 2075 | 2330 |
60 | 215 | 400 | 635 | 920 | 1260 | 1650 | 1870 | 2100 |
65 | 200 | 365 | 585 | 850 | 1165 | 1525 | 1730 | 1925 |
70 | 185 | 340 | 540 | 790 | 1080 | 1420 | 1600 | 1800 |
80 | 160 | 300 | 475 | 690 | 945 | 1240 | 1400 | 1575 |
90 | 145 | 265 | 422 | 615 | 840 | 1100 | 1245 | 1400 |
100 | 130 | 240 | 380 | 550 | 755 | 990 | 1124 | 1260 |
105 | 125 | 225 | 362 | 525 | 720 | 945 | 1070 | 1200 |