All packs imported into Australia (all packs are currently imported) must be sampled, tested and carry a certificate of compliance to various standards before they enter the country.

All packs must carry a label that identifies the manufacturer (or brand), the production batch number and the type of nylon (for recycling purposes). If there is a problem with packs purchased, then a grower should record these details (or simply tear the label off) and send it to AWEX with details of the problem. AWEX is then able to resolve the problem with the manufacturer.

The standards that govern Wool Pack quality are available from AWEX. As with other quality systems, it is the responsibility of the organisations requiring the Standards to ensure that they have access to the latest version of the Standards. A complete list of applicable standards and specifications are listed below.

AWEX Wool Pack Standards and Test Methods

Standard No. 3
Standards and Test Methods for Woven Wool Packs made from
Multifilament Nylon Yarns

Test Method TM 30
Test Method for Determining the Breaking Load of Woven Wool Pack Fabrics

Test Method TM 31
Test Method for Determining the Seam Strength and Extension of
Woven Wool Packs

Test Method TM 32
Test Method for Determining the Tear Strength of Woven Wool Packs

Test Method TM 33
Test Method for Determining the Stability of Synthetic Wool Pack Fabric
to Ultraviolet Radiation

Test Method TM 35
Test Method for Determining the Surface Frictional Properties of
Wool Pack Fabrics

Test Method TM 36
Test Method for Determining the Adhesion of Wool to Anti-Slip Coating

Test Method TM 38
Test Method for Determining the Extensibility under Load of
Woven Wool Pack Fabrics

 

Standards Australia Standard

Australian Standard AS2001.2.9
Determination of Stiffness of Fabric
Web : http://www.standards.com.au

 

Wool Pack Specifications

Table 1: Dimensions of Nylon Wool Packs

 

Dimension

Specification (mm)

Number of measurements  per pack

Pack Flaps

460 ± 10

8

Side Seams

980 ± 10

4

Side Width

   Short side

   Long side

 

700 ± 10

700 ± 10

 

4

4

Base

   Sewn seam

   Between seams

 

700 ± 10

700 ± 10

 

2

3

Seam Depth

   Base seams

   Side seams

 

15 ± 5

15 ± 5

 

6

12

Note: All packs sampled must comply with these specifications

 

Table 2: Specifications of Pack Standards (Mechanical Properties)

Mechanical Property

Specification Warp/Weft

Difference of Warp to Weft

Number of specimens per pack

Breaking Load (kg)

> 300

< 50

8

Seam Strength (kg)                    

   Base

   Side

 Result

> 140

> 130

 

n/a

 

4

4

Seam Extension (%)

   Base

   Side

Result

< 35

< 30

 

n/a

 

 

4

4

Tearing Strength (kg)

> 50

< 10

8

Breaking Load after UV exposure (kg)

> 250

< 50

8

Surface Friction (N)

   Dry

   Wet

 

> 3.5 and < 6.0

Wet ? Dry < 2.0

 

< 1.5

< 1.5

 

4

4

Load Extension (%)

< 10.0

< 2.0

8

Mean Bending Length (mm)

> 40 and < 60

< 10

8

Adhesion of Wool to anti-slip coating

No adhesion is to occur                 No melting to occur

n/a

4

Note: The pack with the lowest mass must be tested for all these properties and must comply with the specifications unless further testing is carried out in accordance with the retest procedure.

 

For more information on Wool Pack Standards, please contact AWEX on (02) 9428 6140 or email industryservices@awex.com.au