classingmachine3

 

classing20Accredited

 

classing20Accredited

 

classing20Accredited

 

classing20Accredited

 

classing20Accredited

 

classing20Accredited

 

classing20Accredited

 

classing20Accredited
 

Equipment

Since inception, the ProClass commitment to its customers and the wider cotton industry is to, wherever possible, use the world’s best available technology for the process of cotton classing in order to ensure the highest level of confidence in the results. This means we have made a significant investment to make sure we have the best available testing equipment and optimum laboratory conditions in which to conduct testing.

 

Cotton Testing

It is widely held that the USTER HVI 1000 has established itself as the superior technology on the market. Beginning in 2010 ProClass began the process of expanding and upgrading the HVI fleet. We can now boast a fleet of six HVI 1000’s operating in the Goondiwindi facility and three in the Griffith facility. ProClass is the only classing entity that has this kind of capacity using only the most modern HVI 1000 technology.

classing20Accredited

HVI Machine

 

Environment Conditioning

Environment conditions are critical to the cotton testing process. Worldwide standards dictate that cotton testing laboratories environment conditions be held at a temperature of 21 degrees Celsius (+ or - 1 degree) and humidity of 65% (+ or - 2%). Samples are kept in these conditions for 24 hours prior to testing to ensure sample moisture content is at the Best Management Practice (BMP) compliance level (6.75% - 8.25%).

To achieve this we have installed state-of-the-art air conditioning systems at both our facilites, comprised of:

  • arrow-up-rightCarrier Cooling Units (Chiller)
  • arrow-up-rightCarrier Air Handling & Distribution Units
  • arrow-up-rightCondiar Humidification Units
  • arrow-up-rightCarrier Comfortview comfort control software

Collectively these systems currently condition a space large enough to house our nine HVI machines and condition 40,000 samples per day. It has the capacity to double this if required.

 

Measurements and Calculations

Micronaire  Micronaire Reading
Measured by relating airflow resistance to the specific surface of fibres.
Length: Upper Half Mean Length, Uniformity Index, Short Fibre Index
Measured optically in a tapered fibre beard which is automatically prepared, carded and brushed.
 Strength: Strength Elongation
Strength is measured physically by clamping a fibre bundle between 2 pairs of clamps at known  distance.  The second pair of clamps pulls away from the first pair at a constant speed until the fibre bundle breaks.  The distance it travels, extending the fibre bundle before breakage, is reported as elongation.
 Moisture: Moisture Content
Moisture content of the cotton sample at the time of testing, using conductive moisture probe.
 Colour: Rd(Brightness), +b(Yellowness), Colour Grade
Measured optically by different colour filters, converted by USDA Upland or Pima Colour Chart to grades.
 Trash: Particle Count, % Surface Area Covered by Trash, Trash Code
Measured optically by utilising a digital camera, and converted to USDA Trash Grades.

 

 

 

 

ProClass is Australia's leading cotton classing operation. Fully independent, we operate two modern cotton classing facilities servicing Australian cotton growers and merchants. The first is located at head office in Goondiwindi, Queensland, right in the heart of Australia's traditional cotton belt. The second is situated at Griffith, NSW, the hub of the rapidly expanding cotton growing region in southern NSW. At present, ProClass classes approximately 65% of the cotton produced in Australia.

Our mantra is "Professional Independent Classing" and that is exactly what we provide. This is done with the help of a team of industry professionals with long term domestic and international experience, a fleet of the most up to date cotton testing equipment (HVI machines), a state-of-the-art humidification and environment conditioning system and a pro-active, forward thinking Board of Directors.

ProClass is a full participating member of the Cotton Classer's Association of Australia (CCAA). We are fully compliant with the CCAA's Best Management Practice for cotton classing and have been since that program's inception.

In 2016 the Goondiwindi facility was accredited under the International Cotton Association Laboratory Certification Scheme. It is planned for the Griffith facility to be accredited under this scheme in the near future.

The ProClass service is open to all cotton growers and merchants.