Accredited testing methods

**Accredited testing methods**
Testing method	Norm relative to testing method	Comments
Density	DIN 53479
Shore A hardness	DIN 53505	Shore D only on request
Microhardness IRHD	DIN 53519 Bl.2	Aimed at very thin elastomer membranes, O-rings
Ball indentation hardness	DIN EN ISO 2039-1	For thermoplastics and thermosets
Stress-strain characteristic in compression	DIN EN ISO 3386-1/2	For foams
Puncture impact	DIN EN ISO 6603-2
Flexural properties	DIN EN ISO 178
Tensile properties	DIN 53504
	DIN EN ISO 527
Compression set	DIN ISO 815
	DIN EN ISO 1856	Tests at room temperature
Tension set	DIN 53518
Tear strength	DIN 53507	For elastomers
	DIN 53515	For elastomers (Graves)
Charpy impact strength	DIN EN ISO 179	Using test fibres
Tensile impact strength	DIN EN ISO 8256
Resilience test	DIN 53512
Abrasion	DIN 53516	(Drum) abrasion testing machine
Extraction	DIN ISO 1407	Acetone or ether 4h
FTIR analysis	L036017	Material identification of thermoplastics and thermosets
Thermal analysis DSC	DIN 65467	e.g. Onset of polyolefins
Thermal analysis TGA	ASTM E-1131	e.g. Composition of elastomer compounds
Thermal analysis TMA	ASTM E-831
Thermal analysis DMA	ASTM D-4065	Available as of 2002
ACN content in NBR	DIN 53621 T.3	Based on the determination of nitrate content with N-analyser
Determination of residue on ignition	DIN 53568-1
Melt flow rate MFR	DIN EN ISO 1133	Granulate determination
Viscosity	DIN EN ISO 307	e.g. for PA, PETP, PC etc.
Warfare agent resistance	L036001	4x4yl pure sulphur mustard
	L036002	4x2yl pure sulphur mustard
	L036003	1x30yl pure sulphur mustard gas/gas
	L036004	1x50yl sulphur mustard/chlorobenzene
	L036007	Finabel tests, indicator paper method
Hot-air ageing	DIN 53508	Accelerated ageing of elastomers
	7 Tage	Temperatures 70°C /100°C / 150°C
	14 Tage	Temperatures 70°C /100°C / 150°C
	28 Tage	Temperatures 70°C /100°C / 150°C
Ozone tests for rubber ageing	DIN 53509	e.g. 50pphm, 40°C, 55% r. humidity, 72h
XENONTEST	DIN EN ISO 4892-2
Swelling	DIN 53521	(gases, only in exceptional circumstances and upon request)

**Test methods which are not subject to accreditation**
Test method	Test method norm	Comments
Weight determination		Sample weight e.g. for swelling
Changes in volume following swelling		Determined by density and weight changes
Tear strength	SNV 198482	Elmendorf method suitable for films and paper
Tear strength	ISO 6383-2	Trapeze methods for films
	ISO 34-2	Using delft test pieces – for elastomers
Weight in cubic meters
Weight per meter when run over buffers
Adhesive strength
Weld strength
Sample thickness
Abrasion		For 2D samples
Alternating climate test		Programme required
Stress-crack resistance	DIN EN ISO 5600	Ball and pin indentation procedure

**Special test methods which are not subject to accreditation**
Test method	Test method norm	Comments
Contact pressure of radial shaft seals		N = max. 10 samples single and average values from N samples

**Manufacture of injection-moulded test pieces**
(Not subject to accreditation) For a range of material tests
Type	Minimum number of test pieces	Comments
Shouldered test bar No. 3	100	With/without weld line, film or pinpoint gate according to DIN EN ISO 527
tensile strength test	00	Film gate with/without notch, and with/without weld line according to DIN EN ISO 8256
Charpy impact strength test	100	Film gate with/without notch, with/without weld line according to DIN EN ISO 479
Flexural strength test	100	Film gate with/without weld line according to DIN EN ISO 178
Flexural strength test	100	Film gate with/without weld line according to DIN EN ISO 178
Trouser test piece for determination of DMA or torsion tests	100	Thickness = 1mm or 2mm film gate according to DIN EN ISO 527
We manufacture test pieces according to standard procedures. Any requested additional measures will be charged. Our laboratory delivers only the test pieces; this does not include any material tests.

**List of accredited test reports or non-accredited qualifying statements rten Erläuterungen**
Activity	Comments
Provision of a test report	No evaluation of results
Provision of qualifying statements with an evaluation of the test results contained in the test report	The test result evaluation is provided in a separate document
Communication of test results by telephone; no written confirmation	Only the costs per test method are billed. No evaluation of results

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