Physical Testing


1.Physical Characterisation

Properties Standard Test Method Test Pieces Price/Sample (THB)
Density ISO 2781, ASTM D297 a piece of rubber with smooth surfaces 200
- Change in weight ISO 1817, ASTM D471 width 25 mm. length 50 mm. thickness 2 mm. 400
- Change in volume width 25 mm. length 50 mm. thickness 2 mm. 400
- Change in tensile properties dumbbell : die C (ASTM D412) 800
- Change in hardness smooth surfaces,thickness at least 6 mm. 400
- Change in tear properties crescent (ISO 34-1), die : B (ASTM D624) 800

2. Rheological Tests

Properties Standard Test Method Test Pieces Price/Sample (THB)
Melt Flow Index (MFI) ISO 1133, ASTM D1238 plastic pellet, 100 g 400
Mooney Viscosity ISO 289-1, ASTM D1646 compounded rubber, 100 g or uncompounded rubber, 250 g 400
Viscosity (Capillary Rheometer) ASTM D5099 200 g 600
Viscosity (Rotational Rheometer) ISO 7323 strip,diameter 25 mm. thickness 1-2 mm. 1,000
Rubber Process Analyzer compounded rubber, 30 g 600

3.Cure Tests

Properties Standard Test Method Test Pieces Price/Sample (THB)
Scorch Time(ts2) ASTM D5289, ASTM D2084 compounded rubber, 15 g 400
Curing Time(tc90) compounded rubber, 30 g 400

4. Mechanical Test

Properties Standard Test Method Test Pieces Price/Sample (THB)
Hardness ISO 7619-1, ASTM D2240 thickness at least 6 mm. smooth surfaces 200
Tensile Properties ISO 37 dumbbell : type I 400
ASTM D412 dumbbell : die C 400
Compressive Properties ISO 7743 cylindrical shape; diameter 29 mm. height 12.5 mm. 400
Tear Properties ISO 34-1 die : crescent 400
ASTM D624 die : B 400
Compression Set ASTM D395 cylindrical shape; diameter 29 mm. height 12.5 mm or cylindrical shape; diameter 13 mm. height 6 mm. 400
Abrasion Resistance (DIN Standard) DIN 53516 cylindrical shape; diameter 16 mm. height at least 6 mm. 400
Abrasion Resistance (AKRON Standard) BS 903 Part A9 (Method B) cylindrical shape; outside diameter 63.5 mm. inside diameter 12.7 mm. thickness 12.5 mm 1,000
Rebound Resilience BS 903 Part A8 width 8 mm. length 40 mm. thickness 4 mm. 400

5. Dynamic Mechanical Tests

Properties Standard Test Method Test Pieces Price/Sample (THB)
Dynamic Mechanical Analyzer
30-200 oC width 5 mm. length 40 mm. thickness 1-2 mm. 800
-100-200oC width 5 mm. length 40 mm. thickness 1-2 mm. 1,200
Dynamic Mechanical Flexometer
Heat build-up ASTM D623 cylindrical shape; diameter 17.8 mm. height 25 mm. or compounded rubber, 30 g 1,000
Crack Growth Test (De Mattie Flexing Machine) ISO 132, ASTM D813 test piece (shown in figure 2 in ASTM D 813 ) or compounded rubber 120 g 1,000
Dynamic Fatigue Test ISO 132, ASTM D430 test piece (shown in figure 2 in ASTM D 430) or compounded rubber 120 g 1,000

6. Ageing Tests

Properties Standard Test Method Test Pieces Price/Sample (THB)
Hot Air Ageing Test ISO 188, ASTM D573 dumbbell : type I (ISO 37), die C (ASTM D412) 6 pieces 20 THB/hour
Ozone Resistance (Up to 72 hours) ISO 1431-1 width 10 mm. length 80 mm. thickness 2 mm. 3 pieces 2,000

7. Sample Preparation Services

Rubber Mixer Type Price (THB)
Two Roll Mill Price Negotiable
Compression Moulding 200

Rubber Services Request Form

Contact


Ms. Khwanjai Anujarawat
Tel: 0 2441 0511
Fax: 0 2441 9378
E-mail: service@mahidolrubber.org