RTEC

Physical Testing

1. Rheological Tests

Properties	Standard Test Method	Test Pieces	Price/Sample (THB)
Melt Flow Index (MFI)	ISO 1133, ASTM D1238	plastic pellet, 100 g	400
Brookfield Viscometer			400
Mooney Viscosity	ISO 289-1, ASTM D1646	compounded rubber, 100 g or uncompounded rubber, 250 g	500
Viscosity (Capillary Rheometer)	ASTM D5099	200 g	1,000
Viscosity (Plate and Plate Rheometer)			600
Rubber Process Analyzer		compounded rubber, 30 g	600

2.Cure Tests

Properties	Standard Test Method	Test Pieces	Price/Sample (THB)
Moving Die Rheometer	ASTM D5289, ISO 6502-3	compounded rubber, 15 g	500

3. Mechanical Tests

Properties	Standard Test Method	Test Pieces	Price/Sample (THB)
Tensile Properties	ISO 37	dumbbell : type I	500
	ASTM D412	dumbbell : die C	500
Compressive Properties	ISO 7743	cylindrical shape; diameter 29 mm. height 12.5 mm.	500
Tear Strength	ISO 34-1	die : crescent	500
	ASTM D624	die : B	400
Hardness (IRHD)	ISO 48-2	thickness at least 6 mm. smooth surfaces	300
Hardness (Shore A)	ISO 48-4, ASTM D2240	thickness at least 6 mm. smooth surfaces	300
Compression Set	ASTM D395	cylindrical shape; diameter 29 mm. height 12.5 mm or cylindrical shape; diameter 13 mm. height 6 mm.	500
Abrasion Resistance (DIN Standard)	DIN 53516	cylindrical shape; diameter 16 mm. height at least 6 mm.	500
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	ISO 4662 (Schob pendulum)	thickness 12.5 mm.	400
Tension Set			500

4. Dynamic Mechanical Tests

Properties	Standard Test Method	Test Pieces	Price/Sample (THB)
Heat build-up	ASTM D623	cylindrical shape; diameter 17.8 mm. height 25 mm. or compounded rubber, 30 g	1,000
Dynamic Mechanical Analyzer
- 30-200 ^oC		width 5 mm. length 40 mm. thickness 1-2 mm.	800
- N₂		width 5 mm. length 40 mm. thickness 1-2 mm.	1,500/sample/2 hours
De Mattia Flexometer
Crack Growth Test (up to 120,000 cycles)	ISO 132, ASTM D813	test piece (shown in figure 2 in ASTM D 813) or compounded rubber 120 g	1,000
Dynamic Fatigue Test (up to 120,000 cycles)	ISO 132, ASTM D430	test piece (shown in figure 2 in ASTM D 430) or compounded rubber 120 g	1,000

5. Physical Characterisation

Properties	Standard Test Method	Test Pieces	Price/Sample (THB)
Density (Hydrostatic method)			300
Particle Size Analyser (aqueous medium)			500
Heat Distortion Tester (HDT Tester)			1,000
Ash Content			1,000

6. Ageing Tests

Properties	Standard Test Method	Test Pieces	Price/Sample (THB)
Liquid Resistance
- Change in weight	ISO 1817, ASTM D471	width 25 mm. length 50 mm. thickness 2 mm.	500
- Change in volume		width 25 mm. length 50 mm. thickness 2 mm.	500
- Change in tensile properties		dumbbell : die C (ASTM D412)	1,200
- Change in hardness		smooth surfaces,thickness at least 6 mm.	800
- Change in tear properties		crescent (ISO 34-1), die : B (ASTM D624)	1,200
Ozone Resistance (up to 72 hours)	ISO 1431-1	width 10 mm. length 80 mm. thickness 2 mm. 3 pieces	2,000
Hot Air Ageing Test	ISO 188, ASTM D573	dumbbell : type I (ISO 37), die C (ASTM D412) 6 pieces	40 /hour
QUV Accelerated Weathering Test	ASTM G154		1,000 /day 6,000 / 7 days
Change in color			400

7. Sample Preparation Services

Type			Price (THB)
Compression Moulding (up to 30 min)			300/sample
Splitting Machine			Price Negotiable
Solvent Extraction			1,000/Sample

8. Rubber Mixing

Type			Price (THB)
Internal Mixer			Price Negotiable
Two-Roll Mill			Price Negotiable

9. Latex

Properties			Price (THB)
Total Solid Content (TSC)			400 /Sample*
Dry Rubber Content (DRC)			400 /Sample*
Volatile Matter			400 /Sample*

*Please note that above rates not include hot air aging oven fee.

Rubber Services Request Form

Contact

Ms. Khwanjai Anujarawat
Tel: 0 2441 0511, 080 771 7098
E-mail: service@mahidolrubber.org