Preface

This standard applies to Audi AG and subsidiaries. It describes the requirements for emission be‐havior according to Volkswagen standard VW 50180 for materials and according to Test Specification PV 3942 for components in the passenger compartment, luggage compartment, and air duct ele‐ments used in vehicles of Audi AG.Previous issues VW 50179: 2006-08Changes

The following changes have been made as compared to VW 50179: 2006-08:–Standard completely revised Scope

Requirements for materials and components in the passenger compartment, luggage compartment,and air-ducting parts used in vehicles of Audi AG are indicated in Table 1 of this standard. The first row in Table 1 applies to all materials or components not listed.

The requirements according to PV 3942 additionally apply to larger components (see Table 2). These are listed in Section 4 and Section 7. Testing will be performed by Audi, if required. In the case of PUR seat foams, it is mandatorily to be carried out by an authorized institution, see testing note 9) in Section 6.

Any drawing, supply specification, material requirement, or similar specification pertaining to mate‐rials or components used in the passenger compartment, luggage compartment, or air duct elements must contain requirements for emission behavior according to VW 50180 and according to this stan‐

dard. If this is not the case, the requirement must be added. Application of VW 50180 and this standard is mandatory.

1

Group Standard

VW 50179

Issue 2009-09

Class. No.:55104

Descriptors:

emission, emission behavior, passenger compartment

Check standard for current issue prior to usage.

This electronically generated standard is authentic and valid without signature.

The English translation is believed to be accurate. In case of discrepancies the German version shall govern.Numerical notation acc. to ISO practice.

Page 1 of 11

Technical responsibility Standards Department I/GQ-32

Heiko Lüßmann-Geiger

Tel.: +49-841--31215

I/EZ-11 Heinz J. Winkler Tel.: +49-841--30965

Confidential. All rights reserved. No part of this document may be transmitted or reproduced without prior permission of a Standards Department of the Volkswagen Group.Parties to a contract can only obtain this standard via the B2B supplier platform www.vwgroupsupply.com.

© Volkswagen Aktiengesellschaft

VWNORM-2008-12g

The value in the list that is valid at the time the contract is awarded is the applicable value for a material or component. Legally prescribed material bans or concentration limit values take effect when the law becomes effective.

If a component or material must comply with two or more requirements from Table 1 (e.g., if both the relevant component as well as the material used are listed), the more stringent requirement always applies.

Deviations from the requirements listed in Tables 1 to 3 are only permitted in justified exceptional cases, after written approval by Audi AG, Ingolstadt Laboratory.

In case of any questions, please contact the Quality Assurance Department of the Ingolstadt Labo‐ratory of Audi AG.General information

VW 50180 provides limit value specifications as evaluation criteria for the use of low-emission ma‐terials and components in the passenger compartment, luggage compartment, and air ducts.VW 50179 specifies deviating limit values for materials or components that take precedence over the values in VW 50180.

In addition, this standard defines requirements for components for measurements according to PV 3942 in a 1m 3 emission test chamber.

Fulfillment of the requirements must be documented within the framework of first sampling by the results of a Laboratory that has been authorized to perform the respective test by Audi AG at this time. For details as well as a list of authorized laboratories, see www.vwgroupsupply.com → Quality Assurance → Brand Quality Assurance → Audi → Emission Measurement.General deviations as compared to VW 50180

For all materials and components in the passenger compartment, luggage compartment, and air-ducting parts used in vehicles of Audi AG, the following applies:

E i = 0 µg/g

(1)

for all substances of Parts 1), 2), and 3) of Section III of the maximum permissible concentration (MAK) list of the Deutsche Forschungsgemeinschaft (German Research Foundation) as well as for all substances classified there in pregnancy group A or B.

All substances listed in Section III Category 4) of the MAK list must be avoided in new developments.In addition, all other halogenated compounds are undesirable and must be replaced where technically feasible.Emission evaluation in the component chamber

For measurements carried out acc. to PV 3942, the odor evaluation of the air in the chamber must be better than 4,0. The measured concentration of any individual banned substance (according to Section 3) must not exceed 50 µg/m 3. Further requirements are stated in Table 2 and Table 3.

2

3

4

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VW 50179: 2009-09

List of requirements for emission behavior according to VW 50180

Table 1 applies to all materials and components in the passenger compartment, luggage compart‐ment, and air-ducting parts used in vehicles of Audi AG.For footnotes, see Section 6, Testing notes

Table 1

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VW 50179: 2009-09

VW 50179: 2009-09

Page 5 VW 50179: 2009-09

Page 6

VW 50179: 2009-09

Testing notes

6

— : The test must not be applied.

*) Variant depends on the component. Under certain circumstances it may be necessary to perform odor tests acc. to two variants (2 and 3).

1) For the tests, produce a free adhesive film in the thickness that occurs in the application. If this is not possible, the adhesive must be applied in this thickness on aluminum foil, and the foil with the adhesive coat must be examined. The adhesive must be scraped off again for PV 3341. For com‐parison purposes, 500 cm2 of the untreated aluminum foil must also be supplied.

Initial weight for the odor test: 0,5 g per liter of container volume; always variant 3 = 80 °C

2) For the test according to PV 3341, coating material in the amount of 50 cm2 per 10 ml container volume is weighed in, instead of 1 g per 10 ml container volume. The limit value retains the same numerical value but is not referenced to the weight but to 50 cm2.

For the test according to PV 3925, 40 cm2 of the coated metal is examined. The limit value retains the same numerical value but is not referenced to kg but to 40 cm2.

The tests according to PV 3015 and PV 3900 are performed without any changes.

3) Specimen preparation for PV 3341 for SMC materials:

Deviating from PV 3341, the material is not shredded. A piece is cut or sawn out of the material without elevated temperature. The cross section is (4 x 9) mm. The length must be selected so that an initial weight of 1 g per 10 ml of container volume is achieved. For thin specimens, it can be necessary to weigh in two pieces of equal size.

4) For parts with a thickness of more than 5 cm, 2 specimens each must be examined for the tests according to PV 3341 and PV 3900 because of possible impurities on the surface and inhomo‐geneities in the structure:

–Sampling: Surface material and the material underneath up to a maximum of 1 cm distance from the surface

–Sampling: Center, at least 2 cm distance from the surface

For the test according to PV 3925, only one specimen must be examined. This must be sampled from the surface.

5) If the part contains formaldehyde emitting additives, a limit value according to PV 3925 of 3 mg/ kg applies.

6) For leather, the odor test procedure deviates from PV 3900:

The evaluation is made after aging for 2 hours at 50 °C in dry conditions.

There are no grades for the evaluation. Only the evaluation “leather-typical” or “leather-atypical” is given. “Leather-typical” means: requirement fulfilled.

7) For the tests according to PV 3015, PV 3900, and PV 3925, an initial weight deviating from the standard of 1 g grease is used in each case.

8) The odor grade 4 at 80 °C only applies temporarily. As soon as the efforts to create an ABS, ASA or PP with better odor are completed, grade 3 will be required again. For odor tests acc. to variant 1 and 2 (aging conditions 23 °C and 40 °C), grade 3 must still be reached.

9) Material tests as contained in VW 50180 in the case of seat foams often cause faulty results due to the low specimen quantity. Therefore, a test acc. to PV 3942 (component chamber test) must be carried out on complete seat foam specimens during first sampling instead of these material tests;

these must be documented by means of a laboratory report. The parameters given in Section 4 and Section 7 must be determined; and the listed requirements must be fulfilled.Paint films

For tests according to PV 3015 (50 cm 2), PV 3900 (200 cm 2 for 1 l containers), and

PV 3925 (40 cm 2), a free paint film with a thickness corresponding to that in the range of application and in the size specified in brackets for each specimen must be used (can be obtained, for example,by applying the paint on glass).

For tests according to PV 3341, an original carrier part (same material as for the application) with a thickness of (2 ± 0,2) mm, which has been coated with the paint in the specified thickness, is used.The application process and drying process must be identical to those used in the original application.The emission behavior of the prepared part is examined. To determine the proportion of the paint film in the total emission, the emission value of the carrier part must be subtracted from that of the whole part. For this purpose, an unpainted carrier part of the same thickness, which was subjected to the same conditions (drying process, in particular) as the painted part, is measured.Exterior parts that contact the passenger compartment

For exterior parts that contact the passenger compartment, e.g., trunk lid, the limit values for the corresponding material in Table 1 are doubled for the tests according to PV 3015, PV 3341, and PV 3925. The limit values for the test according to PV 3900 remains the same.Parts composed of different materials

If the individual materials can be separated from one another without difficulty, they must be examined separately. They may also be examined prior to assembly of the finished part. In each case, the requirements for the respective individual materials apply.Minimum size of parts requiring emission tests

The requirements for the emission behavior generally apply only to parts in which the weight of the individual part or individual component is greater than 20 g.

For parts made of POM, the test according to PV 3925 is already performed for individual parts or components weighing more than 5 g.

Flat parts with an area greater than 100 cm 2 are tested regardless of their weight.Requirements for component chamber test according to PV 3942

As already stated in Section 2, an examination of components and component groups according to PV 3942 will also be performed by Audi in a 1m 3 emission test chamber, if required. In the case of seat foams, this test must be performed mandatorily instead of tests acc. to VW 50180.

As part of this examination, VOC screening by means of Tenax tube sampling followed by thermod‐esorption/GC-MS analysis (semi-quantitative individual substance concentrations as toluol equiva‐lents) is performed. In addition, the Audi standard scope includes an estimation of the total amount of emitted organic compounds through an FID value as well as a determination of the carbonyl con‐tents (DNPH derivatization, HPLC analysis) and a subsequent odor test of the chamber air.In Table 2, the relevant test scope and the total values for hydrocarbon compounds measured via flame ionization detector are assigned to the components and assemblies.

6.1

6.2

6.3

6.4

7

Component or assembly Test scope or quantity FID limit value in ppm

1 part8

Load compartment cover

(Avant)

Storage tray (driver's side) 1 part8

Damping/insulation 1 m210

Decorative strips 1 complete set5

1 part8

Glove compartment (front pas‐

senger side)

Headliner 1 part (+ add-on parts)10

Rear shelf (Sedan) 1 part10

Dashboard 1 complete part10

8

HVAC unit Complete, including parts in the

plenum chamber

1 part10

Luggage compartment floor

(Sedan)

1 part15

Luggage compartment floor

(Avant)

Steering wheel 1 part5

Steering wheel, wood 1 part10

Center console 1 part5

Pillar trim panels, top 1 complete set5

Pillar trim panels, bottom 1 complete set5

Seat system, leather 1 covering10

10

Seat system, foam cushion 1 front seat foam specimen or

⅓ rear seat backrest

15

Seat system, foam cushion 1 rear seat bench foam speci‐

men

Seating system, cloth 1 covering5

Carpet¼ of area (driver's footwell)15

Door trim panel 1 part15

Luggage compartment trim 1 part10

Additional floor mats½ set8

1 m210

Semi-finished product (leather,

textile, etc.)

Other large parts 1 part or 1 m210

In addition to the minimum requirements listed in Section 4 for examinations in the emission chamber according to PV 3942, the emission limit values for individual compounds and compound groups specified in Table 3 must not be exceeded during the examination. Here, compounds or compoundclasses have been mainly selected for which so-called legal standard values for passenger com‐partments exist or are in preparation.

With the exception of the compounds marked with *, the specified concentration is in toluol equiva‐lents.

Table 3

Chemical compound Emission limit value

in µg/m3

Toluol 3 000

C1-C4 alkyl benzenes 3 000

Styrene300

C9-C14 alkanes (n-alkanes, iso-alkanes, cyclic alkanes)10000 Cyclohexane 4 000

Bicyclic terpenes (e.g., a-pinene, b-pinene, 3-carene, etc.) 2 000

Monocyclic terpenes (e.g., limonene, etc.) 2 000

N-methyl pyrrolidone400

Siloxane D5 3 000

50

Cumulative value of phosphate organic compounds

(TCEP, TCPP, TBP, TBEP, TEHP, TPP)

Cumulative value of halogenated compounds200

Cumulative value of acrylates1000

Cumulative value of glycol ether/glycol ester 2 000

Cumulative value of amines 2 000

Cumulative value of siloxanes8 000 Formaldehyde200* Acetaldehyde200*

Sum of aldehydes C2-C6 1 000*

50

Compounds that are banned for examinations according to

PV 3341

8

Referenced documents

The following documents cited in this standard are necessary for application.

In this Section terminological inconsistencies may occur as the original titles are used.Standards with the titles given in German are either only available in German or may be procured in other languages from the institution issuing the standard.

PV 3015Non-Metallic Materials for Interior Trim; Determining Condensable Con‐

stituents (G)

PV 3341Non-Metallic Materials in Automotive Interior Trim; Determination of Emis‐

sion of Organic Compounds

PV 3900Components in Passenger Compartment; Odor Test

PV 3925Polymer Materials; Measuring Emissions of Formaldehyde

PV 3942Determining Organic Emissions from Components for the Passenger

Compartment of Motor Vehicles; Emission Test

VW 50180Components in Passenger Compartment; Emission Behavior下载本文