Wool Testing  : Alpaca, Fleece, Flock Testing

Wool Testing : Alpaca, Fleece, Flock Testing

Accurate testing for your fleece samples.

Get convenient fleece testing of samples from individual animals for breeding selection purposes – simply pay online by credit card for:

  • Accurate fleece testing, including micron (average diameter), staple length and strength, length-diameter profile and yield
  • Quality and quantity certainty – for both the buyer and seller
  • Valuable info on how to process the efficiently
  • The ability to direct wool into suitable products
Regular price$9.50

Tests include micron (average diameter), staple length and strength, length-diameter profile and yield.

A popular testing solution for animal owners, fleece testing helps you to improve quality. We test greasy wool samples using a variety of low-cost methods that are specifically designed for animal selection purposes.

How to understand your test results

Yield Determining the amount of clean wool (wool base), and vegetable matter contamination in a sample
Mean fiber diameter The average fineness of the wool (fiber thickness), which is a primary determinant of wool value
Color Measured as tristimulus values, and normally used to assess clean color brightness (Y value) and yellowness (Y-Z value)
Staple length and strength We use the average staple length, staple strength and position of break to assess the performance of apparel wools in the worsted processing system
Bulk This measures the fibers’ ability to fill space and also relates to resilience, which are important properties for applications such as carpets, futons, and insulation
Fiber curvature Relates to bulk, compressibility, and crimp and is cited as an influence on processing
Fiber diameter distribution Information about aspects of the diameter distribution may affect assessments of comfort and processing performance
Medullation Refers to the hollow fibers in wool and other animal fibers, which causes uneven dye uptake and adversely affects appearance in apparel wools (but may be desirable for some carpet types)
Conditioned mass Wool absorbs up to 20 percent of its weight as moisture, so invoicing is based on an agreed moisture content or regain (known as the conditioned mass)
Length After Carding (LAC) A standardized method of simulating semi-worsted processing to estimate mean fiber length after processing. Results Are expressed in Hauteur, Barbe, and length distribution statistics

Why SGS?

The SGS Wool Testing Business was established in 1962 and tests a large portion of the New Zealand clip and wool from other countries. SGS Wool Testing Services has an ISO-17025 accredited laboratory and is fully licensed by IWTO to provide IWTO Test Certificates. Independent sampling is available globally via the extensive SGS network of offices.

How to send your samples to our lab

Download instructions

Key Benefits



Provides certainty in quality and quantity for both the buyer and seller


Gives valuable information on how to process the wool efficiently for the processor


Allows wool users to direct the wool into suitable products

How it works


1. Request

Receive sampling info and sample sizes required.


2. Order

Order sampling equipment if necessary


3. Pay

Pay testing fees by credit card


4. Post

Post samples for testing to SGS in New Zealand


5. Test

Testing performed by SGS.


6. Certificate

Electronic certificate sent to you by email.

Where our lab is located

SGS New Zealand

48, Kemp st, Kilbirnie, Wellington 6022, New Zealand

+64 4 3878565

Get directions