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Klass.-Nr. 55 11 2

November 2004

Polyamide 66, Finished Parts in the Passenger Compartment
The English translation is believed to be accurate. In case of discrepanc

ies the German version shall govern.

Material Requirements Konzernnorm Descriptors: door handle, pull rod, socket, switch, joint, clips, loudspeaker grille, lever, bearing, interior part, polyamide 66, PA66

VW 501 27

D

1

Scope

This standard defines the material requirements for door handles and other parts in the vehicle interior that are made from PA66 with different levels of glass fiber content or glass fiber and mineral mixtures. 2 Description

Example of description for type with 15% glass fiber reinforcement: PA66-GF15 according to VW 501 27-PA66-004 or example of description for type with 15% glass fiber reinforcement and 25% mineral reinforcement: PA66-GF15-MD25 according to VW 501 27-PA66-013 3 3.1 Requirements General requirements

Approval of first supply and changes according to Volkswagen standard VW 011 55. Emission behavior according to VW 501 80. Resistance to open air weathering according to VW 501 85. Avoidance of hazardous substances according to VW 911 01. Burning behavior acc. to Technical Supply Specification TL 1010. The number of components required for complete testing depends on the size of the component. The number of components to be supplied is determined in conjunction with the engineering departments. 3.2 Appearance

The surface and interior of the finished parts shall be free of flaws and processing defects, such as flow lines, voids, cracks or similar faults. Sink marks at the base of ribs, reinforcements and pipe unions are not permitted. Materials containing glass fibers must exhibit a surface that is free of imperfections both to the eye and the touch. The distribution of glass fibers throughout the component must be sufficiently uniform so that three specimens taken from different points on a finished part do not differ in glass fiber content by more than 1.0%.

Form FE 41 - 01.03

Page 1 of 6
Fachverantwortung/Responsibility K-QS-31/4 Peters Tel: -28120 Peterka Normung/Standards (EZTD, 1733) Frau Krenz Tel: +49-5361-9-48869 Sobanski

Confidential. All rights reserved. No part of this document may be transmitted or reproduced without the prior written permission of a Standards Department of the Volkswagen Group. Parties to a contract can only obtain this standard via the responsible procurement department.

? VOLKSWAGEN AG

Norm vor Anwendung auf Aktualit?t prüfen / Check standard for current issue prior to usage.

Page 2 VW 501 27: 2004-11

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3.3 Manufacture Injection molding method. 3.4 Quality

See Table 1. 3.5 Identification according to VDA 260

See Table 1. 3.6 Conditioning

The specimens shall be conditioned prior to testing for a minimum of 48 h in the DIN 50014-23/50-2 standard climate at (23 ± 2) °C and (50 + 6)% relative humidity. Both unconditioned and conditioned components shall be tested. These requirements will reveal whether a component can be used even if it is not conditioned. 3.7 Evaluation of the measuring results

The specified numerical values apply to each individual measurement and each point on the finished part. 3.8 Workmanship

See Section 5.9. Only those parts that come into contact with coolant have to be tested. The visual appearance of complete molded parts after aging in a medium with decreased surface tension is evaluated. There shall be no through cracks. On molded parts that come into contact with coolant as part of their function, this requirement especially applies to areas where coolant is carried, such as hose studs, sealing surfaces and walls.

Page 3 VW 501 27: 2004-11

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Table 1

4

Material requirements

No. Quality 1 Material see Section 5.1

Unit

PA66-001 PA66

PA66-002 PA66

1.1 Stabilization

heatstabilized

PA66-013 PA66GF15MD25 heatstabilized

PA66-014 PA66GF10MD15 heatstabilized

2

Identification according to VDA 260

>PA66<

3

PA66-003 PA66-004 PA66-005 PA66-006 PA66-007 PA66-008 PA66-009 PA66-010 PA66-011 PA66-012 PA66 PA66-GF15 PA66-GF20 PA66-GF25 PA66-GF30 PA66-GF35 PA66-GF40 PA66-GF50 PA66-GF30 PA66GF10MD20 heatheatheatheatheatheatheatheatheatheatheatstabilized stabilized stabilized stabilized stabilized stabilized stabilized stabilized stabilized stablized stabilized and impact and highly and impact resistant impact resistant modified resistant modified modified >PA66< >PA66< >PA66>PA66>PA66>PA66>PA66>PA66>PA66>PA66>PA66GF15< GF20< GF25< GF30< GF35< GF40< GF50< GF30< (GF10+ MD20)< 15 ± 1 20 ± 2 25 ± 2 30 ± 2 35 ± 2 40 ± 2 50 ± 2 30 ± 2 10 ± 2

>PA66(GF15+ MD25)< 15 ± 2

>PA66(GF10+ MD15)< 10 ± 2

4 5 6

7

8

9

10

11

Glass fiber content % acc. to DIN EN ISO 1172 Mineral reinforcement 20 ± 2 25 ± 2 15 ± 2 Color acc. to drawing Moisture content 0.7 to 3.0 0.7 to 2.8 0.7 to 2.7 0.7 to 2.7 0.7 to 2.3 0.7 to 2.3 0.7 to 1.9 0.7 to 1.9 0.7 to 1.5 0.7 to 1.5 0.7 to 1.5 0.7 to 2.0 0.7 to 1.5 0.7 to 2.0 see Section 5.2 3 Density g/cm 1.13 ± 0.02 1.09 ± 0.02 1.09 ± 0.04 1.23 ± 0.02 1.27 ± 0.02 1.32 ± 0.02 1.35 ± 0.02 1.40 ± 0.02 1.44 ± 0.02 1.57 ± 0.02 1.36 ± 0.02 1.45 ± 0.02 1.45 ± 0.02 1.33 ± 0.02 acc. to DIN 53479 method A Ball indentation hardness acc. to DIN EN ISO 2039-1 see Section 5.3 2 dry N/mm ≥ 140 ≥ 100 ≥ 95 ≥ 160 ≥ 170 ≥ 180 ≥ 200 ≥ 240 ≥ 240 ≥ 280 ≥ 190 ≥ 195 ≥ 205 ≥ 195 2 moist N/mm ≥ 85 ≥ 50 ≥ 50 ≥ 100 ≥ 105 ≥ 110 ≥ 120 ≥ 160 ≥ 155 ≥ 200 ≥ 115 ≥ 120 ≥ 130 ≥ 125 3 Viscosity number acc. to acc. to sample acc. to sample cm /g of polymer acc. to sample DIN EN ISO 307 see Section 5.4 Yield stress/ breaking stress acc. to DIN EN ISO 527-1 dry MPa ≥ 75 ≥ 60 ≥ 55 ≥ 115 ≥ 125 ≥ 140 ≥ 160 ≥ 170 ≥ 160 ≥ 210 ≥ 130 ≥ 95 ≥ 100 ≥ 120 moist MPa ≥ 45 ≥ 30 ≥ 25 ≥ 70 ≥ 80 ≥ 95 ≥ 105 ≥ 130 ≥ 110 ≥ 150 ≥ 90 ≥ 55 ≥ 70 ≥ 70 Impact resistance acc. to DIN EN ISO 179-1eU at +23 °C 2 dry kJ/m ≥ 25 ≥ 40 ≥ 50 ≥ 65 ≥80 ≥ 90 ≥ 90 ≥ 85 ≥ 35 ≥ 35 ≥ 35 2 moist kJ/m ≥ 50 ≥ 80 ≥ 75 ≥ 88 ≥ 90 ≥ 90 ≥ 95 ≥ 100 ≥ 70 ≥ 60 ≥ 45

Page 4 VW 501 27: 2004-11

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PA66-003 PA66-004 PA66-005 PA66-006 PA66-007 PA66-008 PA66-009 PA66-010 PA66-011 PA66-012 PA66-013 PA66-014 ≥ 70 ≥ 105 ≥4 ≥9 ≥7 ≥ 15 ≥8 ≥ 12 ≥9 ≥ 15 ≥ 11 ≥ 18 ≥ 14 ≥ 23 ≥ 14 ≥ 20 ≥ 18 ≥ 30 ≥4 ≥6 ≥4 ≥ 10 ≥4 ≥5

no change as compared to the as-received condition

There shall be no change in shape, color or quality.

≤ 0.5 The finished parts shall remain fully functional at low temperatures; there shall be no damage. They shall not exhibit cracks or other damage, neither at low temperatures nor after raising the temperature to 23 °C. The exposed surface shall not exhibit changes as compared to the as-received condition, such as change in color, chalking and/or cracking. Gray-scale level ≥ 4 DIN EN 20105-A02

No. Quality Unit PA66-001 PA66-002 12 Notched impact strength acc. to DIN EN ISO 179-1eA at +23 °C 2 dry kJ/m ≥ 4.5 ≥ 50 2 moist kJ/m ≥ 11 ≥ 80 13 Aging resistance see Section 5.5 3 13.1 Viscosity number of cm /g polymer acc. to DIN EN ISO 307 see Section 5.4 14 Elevated-temperature behavior acc. to DIN 53497 see Section 5.6 14.1 Dimensional change % Length and width 15 Low-temperature behavior, see Section 5.7 16 Lightfastness acc. to Test Specification PV 1303 see Section 5.8 (requirement only applies to visible parts in the vehicle interior) Number of exposure periods according to drawing 17 Scratch resistance acc. to PV 3952 (Test on visible surfaces) 17.1 with a load of 5 N ?L 17.2 with a load of 10 N ?L ≤ 0.5 ≤ 1.5

Page 5 VW 501 27: 2004-11

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5 5.1 Notes on testing Material

The identity test can be performed by infrared spectroscopy or DSC. 5.2 Moisture content

A minimum of three specimens measuring (20 x 20) mm shall be removed from different points on the finished part; they shall be weighed with an accuracy of 0.01 g and dried in a vacuum until the weight value remains constant. Cooling of the specimens to (23 ± 2) °C, which is necessary for the second weighing procedure, shall be performed in a desiccator. 5.3 Ball indentation hardness

The measurements must be performed on at least three specimens (minimum thickness 4 mm) measuring (20 x 20) mm (two measurements per specimen). The grained surface of specimens, which have been taken from finished parts with one-sided graining, shall be removed using a surface grinding machine. The measurement is performed on the ground side. 5.4 Polymer viscosity number

Solvent: sulfuric acid, test temperature (40 ± 0.1) °C. 5.5 Aging resistance

Complete finished parts or finished part sections shall be aged for 1,000 h at (150 ± 1) °C in a drying cabinet. The viscosity number of the polymer is determined after cooling to (23 ± 2) °C. 5.6 Elevated-temperature behavior

Aging at elevated temperature test according to DIN 53497, method B, to be performed on at least one complete finished part. Aging time is (22 + 2) h; aging temperature unless otherwise stated in the drawing or release is (90 ± 1) °C. This temperature is (120 ± 1) °C for those vehicle passenger compartment parts that are exposed to a higher level of sun radiation, such as on the dashboard or upper edge moldings of the door and side trim panel. 5.7 Low-temperature behavior

Aging of at least one complete finished part in air at (-40 ± 1) °C; aging period: (22 + 2) h. 5.8 Lightfastness three periods of exposure for components in areas with indirect sun radiation five periods of exposure for components in areas with direct sun radiation (e.g., door upper trim) ten periods of exposure for components in areas exposed to a higher level of sun radiation (e.g., rear shelf)

If the number of exposure periods is not defined in the drawing, the following rule applies:
─ ─ ─

Page 6 VW 501 27: 2004-11

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5.9 Workmanship A minimum of 3 whole finished parts are aged in coolant according to TL 774 without adding water. The type currently used for the factory filling is to be used. Aging period: 48 h; aging temperature: (135 ± 1) °C. Aging is to be performed using a thermostat with circulated bath (e.g., Lauda Ultra Thermostat Type U12 manufactured by the measuring instruments company Lauda Dr. Wobser KG), filled with the test fluid. After coolant aging the specimens shall be rinsed with tap water, to be followed by drying for 3 h at +70 °C. Having undergone this treatment, the specimens shall be evaluated. 6 TL 1010 PV 1303 PV 3952 VW 011 55 VW 501 80 VW 501 85 VW 911 01 DIN 50014 DIN 53479 DIN 53497 DIN EN 20105-A02 DIN EN ISO 179-1 DIN EN ISO 307 DIN EN ISO 527-1 DIN EN ISO 1172 Referenced standards*) Materials for Vehicle Interiors; Flammability, Material Requirements Non-Metallic Materials; Exposure Components Test of Passenger Compartment

Plastic Interior Components; Testing of Scratch Resistance Vehicle Supply Parts; Approval of First Supply and Changes Components in Passenger Compartment; Emission Behavior Vehicle Components; Resistance to Open Air Weathering Environmental Standard for Vehicles; Vehicle Parts, Materials, Operating Fluids; Avoidance of Hazardous Substances Climates and their Technical Application; Standard Atmospheres Testing of Plastics and Elastomers; Determination of Density Testing of Plastics; Hot Storage Test on Mouldings Made of Thermoplastic Moulding Materials without External Mechanical Stressing Textiles – Tests for Colour Fastness – Part A02: Grey Scale for Assessing Change in Colour Plastics – Determination of Non-Instrumented Impact Test Charpy Impact Properties – Part 1:

Plastics – Polyamides – Determination of Viscosity Number Plastics – Determination of Tensile Properties, Part 1: General Principles Textile-Glass-Reinforced Plastics – Prepregs, Moulding Compounds and Laminates – Determination of the Textile-Glass and Mineral-Filler Content; Calcination Methods Plastics – Determination of Hardness – Part 1: Ball Indentation Method Bauteile von Kraftfahrzeugen; Kennzeichnung der Werkstoffe (currently only available in German)

DIN EN ISO 2039-1 VDA 260

*)

In this section, terminological inconsistencies may occur as the original titles are used.


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