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Length

  • L12   Proposed amendments to IWTO-17 to remove reference to manual grip, clarify sampling regime, and update precision statistics, P Baxter, IWTO SG Sub 01, Biella, Nov 05

OFDA4000

  • L13   Performance of OFDA4000 instruments in three mill laboratories, P Baxter & M Brims, IWTO SG Sub 01, Beijing, Apr 2008
  • L11   Report on the 2004/05 OFDA4000 and Almeter/OFDA100/Laserscan round trial, P. Baxter, IWTO SG02, Hobart, Apr 2005
  • L10   Experience with the OFDA4000 in two mills - comparisons with other instruments, M. Brims & P. Baxter, IWTO SG 01, Evian, May 2004

Staple Length & Strength

  • L9   Results of an international round trial using Agritest SB2 instruments to measure staple length and strength in accordance with IWTO-30. B.P. Baxter, IWTO raw wool group, Dresden, Jun 1998
  • L8   Staple length and strength: Short staples and second cuts, effects on coefficient of variation of length (CvL). B.P. Baxter, IWTO raw wool group, Dresden, Jun 1998
  • L5   Proposed addition to Appendix A of IWTO-30 (Description of Agritest Staple Breaker Model 2), B.P. Baxter, IWTO raw wool group, Boston, May 1997
  • L4   Description and performance of the Agritest Staple Breaker model 2, B.P. Baxter, Wool Technology & Sheep Breeding, Vol 44, 1996, pp 119-137
  • L3   Repeatability data on length and strength (IWTO-30) determined by the Agritest Staple Length and Staple Breaker model 2 instruments, B.P. Baxter, IWTO raw wool group, Capetown, May 1996
  • L2   Comparative data on length and strength (IWTO-30) determined by ATLAS and by the Agritest Staple Length and Staple Breaker instruments, B.P. Baxter, IWTO raw wool group, Nice, Dec. 1995

Length after carding

  • L7   A survey of length distribution data for NZ scoured consignments that have been measured for Length after Carding (LAC). J. Wear & P. Baxter, IWTO tech. report 15, Dresden, Jun 1998
  • L6   Comparison of 3 methods of predicting combing performance from raw wool test results. B.P. Baxter & J.L. Wear, IWTO tech. report 5, Nice, Dec 1997

Single fibre length

  • L1   Method of determining wool fibre length distribution using the single fibre length measuring machine - IWTO-5-60: Precision statistics, B.P. Baxter, IWTO Sliver group, Punta del Este, April 1992.

Colour

  • C4 Stability of wool colour, P. Baxter, 2001 Massey Wool Association
    Conference, Napier, Aug 2001 (subsequently published in Wool,
    2000/2001, 28-32, under the title "Wool colour in the eye of the beholder")
  • C3   Amendment to IWTO-31 - Tristimulus value combinations, B.P. Baxter & P.J. Sommerville, IWTO RWG submission, Shanghai, May 2001
  • C2   The effects of the use of different CIE illuminants and observers in IWTO-56 on the combination formulae in IWTO-31, B.P. Baxter, IWTO RWG App. 02, Nice, Nov 1999
  • C1   Some notes on the influence of colour on the measurement of medullation by OFDA, B.P. Baxter, IWTO SG report 01, Nice, Dec 1998

Diameter

Airflow

  • D10   Residual grease levels in Waring blended samples, B.P. Baxter & Y. Liu, IWTO tech. report 1, Nice, Nov. 1993
  • D1   A simple method for improving within-laboratory precision in the airflow test for mean fibre diameter. B.P. Baxter, Raw wool certification sub-committee report, IWTO, Paris, Dec. 1989

OFDA 100

(diameter measurement only - see Miscellaneous for application of OFDA 100 to curvature, medullation, fibre type discrimination and fibre cleanliness measurements)

  • D28   An evaluation of the performance of the OFDA2000 instrument operating in OFDA 100 mode, B.P. Baxter, IWTO RWG report 03, Barcelona, May 2002
  • D26   Technical note: 5 micron fibres found in an ultrafine grower lot - implications for diameter distribution measurement, B.P. Baxter, IWTO RWG report 02, Shanghai, May 2001 (subsequently published in an amended form in Wool Tech. & Sheep Breed., 2001, 49(2), 97-109)
  • D18   Fibre diameter distribution characteristics of midside (fleece) samples and their use in sheep breeding, B.P. Baxter and D.J. Cottle, IWTO tech. report 12, Boston, May 1997, subsequently published in an updated version in Wool Tech. & sheep Breeding, 1998, V46(2), 154-17
  • D17   Precision of OFDA fibre diameter measurements of midside wool samples, D.J. Cottle, C.D. Almeida, B.P. Baxter, & D.J. Petrie, IWTO tech. report 8, Nice, Dec 1996 (subsequently publ. in Wool Tech. Sheep Breed., 1996, 44 (4), 295-302)
  • D14   1994 OFDA round trials on sliver samples, B.P. Baxter & M.A. Brims, IWTO tech. report 6 and supplement 6R, Nice, Dec. 1994
  • D13   1994 OFDA round trials on greasy wool core samples, B.P. Baxter & M.A. Brims, IWTO tech. report 5 and supplement 5R, Nice, Dec. 1994
  • D11   Review of the suitability of the 1993 series of Interwoollabs IH tops for calibration of the OFDA, B.P. Baxter, IWTO tech. report 14, New Delhi, Mar. 1994
  • D8   The Optical Fibre Diameter Analyser (OFDA) - New technology for the Wool Industry, B.P. Baxter, M.A. Brims & D.C. Teasdale, Wool Technology & Sheep Breeding, Dec. 1992
  • D7   Suitability of Interwoollabs IH tops for calibration of the OFDA, B.P. Baxter & D.C. Teasdale, IWTO tech. report 10, Nice, Dec. 1992
  • D6   Linearity and focus independence of the OFDA, B.P. Baxter & M.A. Brims, IWTO tech. report 9, Nice, Dec. 1992
  • D5   OFDA round trials with greasy wool cores, B.P. Baxter, IWTO tech report 8, Nice, Dec. 1992
  • D4   Further studies on the performance of the OFDA, B.P. Baxter, M.A. Brims & T.B. Taylor, IWTO tech. report 8, Punta del Este, April 1992
  • D3   Measurement of the mean and distribution of fibre diameter of wool using an image analyser, (first draft), Test Method under Examination presented to the Sliver group of IWTO, Nice, Dec. 1991, and accepted after amendment in Punta del Este, Uruguay in April 1992. (now IWTO test method 47)
  • D2   Description and performance of the Optical Fibre Diameter Analyser (OFDA), B.P. Baxter, M.A. Brims & T.B. Taylor, Jnl. Text. Inst., 1992, v 83, no. 8, pp 507 - 526 (based on IWTO tech. report 8, Nice, Dec. 1991)

OFDA2000

  • D33  The 2003 Australian Wool Innovation On-farm fibre measurement instrument evaluation trial. Part 2: Performance in objective classing and ranking for animal selection, P. Baxter & J.W. Marler, IWTO CTF 02, Evian, May 2004
  • D32  The 2003 Australian Wool Innovation On-farm fibre measurement instrument evaluation trial. Part 1: Accuracy and Precision trials, J.W. Marler & P. Baxter, IWTO CTF 01, Evian, May 2004
  • D30   OFDA2000 proficiency trials, P. Baxter & W.L Johnston, IWTO CTF 01, Nice, Nov 2002
  • D28   An evaluation of the performance of the OFDA2000 instrument operating in OFDA 100 mode, B.P. Baxter, IWTO RWG report 03, Barcelona, May 2002
  • D27   On-farm classing of animals and fleeces with the OFDA2000, P.Baxter, Wool Tech. & Sheep Breed., 2001, 49(2), 133-155
  • D25   Precision of measurement of diameter, and diameter-length profile, of greasy wool staples on-farm, using the OFDA2000 instrument, P. Baxter, 10th Intl. Text. Res. Conf., Aachen, Dec. 2000

Laserscan

  • D26 Technical note: 5 micron fibres found in an ultrafine grower lot - implications for diameter distribution measurement, B.P. Baxter, IWTO RWG report 02, Shanghai, May 2001 (subsequently published in an amended form in Wool Tech. & Sheep Breed., 2001, 49(2), 97-109)
  • D20   Examination of the differences between OFDA and Laserscan on ultrafine wools. B.P. Baxter, IWTO tech. report 6, Nice, Dec 1997, subsequently published in Wool tech. & sheep Breeding, 1997, V45(4), 267

Comparisons between measurement systems

  • D31 Comparisons between OFDA, Airflow and Laserscan on raw merino wool - Proposal to amend IWTO-47, P. Baxter, IWTO RWG 03, Nice, Nov 2002 (note: File size = 4.2 Mb)
  • D24   The effects of calibration errors on between-laboratory and between-instrument diameter comparisons, B.P. Baxter, IWTO SG report 01, Nice, Nov 1999
  • D23   Additional comments on the measurement of superfine wools by OFDA, airflow and Laserscan. B.P. Baxter, IWTO RWG report 03, Nice, Dec 1998
  • D22   Comparison of Laserscan, OFDA and airflow on raw wool samples. B.P. Baxter, IWTO RWG report 02, Nice, Dec 1998
  • D21   An initial investigation into the effects of medullation on comparisons between Airflow, OFDA and Laserscan. P. Baxter, IWTO tech. report 16, Dresden, Jun 1998
  • D19   Some notes on the effects of relaxation on mean fibre diameter measurement. B.P. Baxter, IWTO sliver group, Boston, May 1997
  • D16   Report of the 1995 IWTO round trial: Part 2: Wool tops - Addendum: Confidence limits for measurements made on tops, B.P. Baxter & J.W. Marler, IWTO tech. report 16 Addendum, Harrogate, Jun. 1995
  • D15   Report of the 1995 IWTO round trial: Part 1: Raw wool - Addendum: Confidence limits for measurements made on raw wool, J.W. Marler & B.P. Baxter, IWTO tech. report 15 Addendum, Harrogate, Jun. 1995
  • D12   Some observations on the 1993 snippet length effect - projection microscope round trial, B.P. Baxter, IWTO tech. report 4, Nice, Dec. 1994.
  • D9   Influences on the comparisons between the mean fibre diameter of wools measured by airflow and by projected image methods, B.P. Baxter, Wool Techn. & Sheep Breed., 1994, 42 (2), 176-192 (orig. presented as IWTO tech. report 13, Istanbul, May 1993)

Yield

  • Y9 Development of a portable greasy wool yield instrument, P Baxter & G Wallace, IWTO Commercial Technology Forum paper CTF 01, Cairo, May 2006
  • Y8   The use of NIR technology to predict IWTO-19 ash residuals and its effects on woolbase, J. L. Wear, IWTO RWG 03, Buenos Aires, May 2003
  • Y7   The use of NIR technology for predicting IWTO-19 residual ash in a commercial laboratory, J.L. Wear, IWTO RWG 06, Nice, Nov 2002
  • Y6   The use of NIR to predict residual ash in the IWTO-19 yield test -2nd trial, J.L. Wear, IWTO raw wool group paper RWG02, Barcelona, May 2002
  • Y5   The use of NIR to predict residual ash in the IWTO-19 yield test, J.L. Wear, IWTO raw wool group paper RWG02, Nice, Dec 2001
  • Y4   Proposed amendment to IWTO-19, clause 6.2.3, B.P. Baxter, IWTO raw wool group, Nice, Dec 1996
  • Y3   Proposed amendments to IWTO-19 & IWTO-33 - determination of oven-dry mass, B.P. Baxter, IWTO raw wool group, Nice, Dec 1996
  • Y2   Proposal to upgrade draft test method Appendix E of IWTO-19 (test method for ethanol extractables by NIRA), B.P. Baxter & J. Wear, IWTO raw wool group, Nice, Dec. 1995
  • M5   Commercial data on the variability of 7000 kg sublots of NZ scoured wools, B.P. Baxter, IWTO raw wool group, Harrogate, Jun. 1995
  • Y1   Range errors in yield testing and the influence of wool type, B.P. Baxter & T. Taylor, IWTO RWCSC paper, Cavtat, Yugoslavia, Jun. 1990

Miscellaneous

Conditioning

  • M19   Statistical modeling of the conditioning curve, and validation of the rapid conditioning criterion proposed in Report SG05 at Christchurch, P. Baxter, IWTO SG report 01, Nice, Nov 2000
  • M18   A new criterion for "time to condition" with data on rapid conditioning of opened fibre assemblies, P. Baxter, IWTO SG report 05, ChCh, May 2000
  • M16   Some data on humidity-regain hysteresis and the possible influences on moisture equilibrium determination, B.P. Baxter, IWTO SG report 03, Nice, Nov 1999

Medullation

  • D21   An initial investigation into the effects of medullation on comparisons between Airflow, OFDA and Laserscan. P. Baxter, IWTO tech. report 16, Dresden, Jun 1998
  • M10   Analyses of precision statistics arising from the July 1996 medullation round trial, B.P. Baxter, IWTO tech. report 2, Nice, Dec 1996

Curvature & bulk

  • M24   Prediction of core bulk using OFDA instruments. R.M.W. Sumner, B.P. Baxter and M.P. Upsdell, Intl. Jnl. Sheep & Wool Sci., 57, 1, article 2, 2009
  • M23   Solvent scouring as a baseline treatment for experiments on mean fibre curvature, P. Baxter, IWTO RWG 04, Buenos Aires, May 2003
  • M21   Proposal for calibrating laboratory preparation systems and instruments to measure curvature on raw wool, P. Baxter, IWTO RWG 04, Nice, Nov 2002
  • D29a The precision and accuracy of OFDA instruments when measuring the curvature of graticules - Updated analyses from 40 instruments
  • D29 The precision and accuracy of OFDA instruments when measuring the curvature of graticules, B.P. Baxter, IWTO CTF report 12, Barcelona, May 2002
  • M8   Preliminary investigations into the use of OFDA for estimating bulk, B.P. Baxter, IWTO tech. report 13, Capetown, May 1996

Fibre type discrimination

  • M25  Microscope analysis of animal fibre blends – training of operators, WD Ainsworth & L Zhang, Cashmere Seminar, 'The Production, The Market, The Quality', Prato, Italy, 11th Nov 2005
  • M14   Continued investigation of the use of OFDA for fibre type differentiation, B.P. Baxter, IWTO STG report 01, Nice, Dec 1998
  • M13   Preliminary results on using the OFDA to discriminate between wool, cashmere, and mohair. B. P. Baxter, IWTO tech. report 17, Dresden, Jun 1998, subsequently published in Wool Tech. & Sheep Breeding, 1998, V46 (1), 24

Fibre cleanliness

  • M15   Investigation into the relationship between along fibre parameters measured by OFDA and IWTO-10 on top and yarn samples: An extension to Nice meeting 1997 Report 4, J.L. Wear, IWTO STG report 02, Nice, Dec 1998
  • M12   Investigation into the relationship between contamination parameters measured by the OFDA and IWTO-10 measurements on commercially-scoured Australiasian wool. J.L. Wear & B.P. Baxter, IWTO tech. report 4, Nice, Dec 1997
  • M1   Comparative extraction tests on tops using ethyl alcohol, acetone, dichloromethane, and t-butylmethylether, B.P. Baxter, IWTO tech. report 1, Paris, Dec. 1989

Statistical techniques

  • M22   Comparing precision from two test methods - Proposed amendment to IWTO-0, P. Baxter, T & S submission 01, Nice, Nov 2002
  • M17   Analyses of alkali solubility trial data published during the development of IWTO-4-60, P. Baxter & W. Ainsworth, IWTO STG App. 01, ChCh, May 2000
  • M11   Review of Appendix B of IWTO-0, G.H. Brown, J.W. Marler & B.P. Baxter, IWTO Technology and Standards Committee, Nice, Dec 1996
  • D21   An initial investigation into the effects of medullation on comparisons between Airflow, OFDA and Laserscan. P. Baxter, IWTO tech. report 16, Dresden, Jun 1998
  • M9   Procedures for comparing: a) test methods, and b) different instruments within the same test method, B.P. Baxter, IWTO tech. report 17, Capetown, May 1996
  • M6   Compatibility and outlier testing in check testing from keeper material and recores, B.P. Baxter, IWTO raw wool group, Harrogate, Jun. 1995
  • M5   Commercial data on the variability of 7000 kg sublots of NZ scoured wools, B.P. Baxter, IWTO raw wool group, Harrogate, Jun. 1995
  • M3   Observations on procedures for comparing test methods, B.P. Baxter, IWTO tech. report 2, Nice, Nov. 1993
  • M2   Guide to risks in batching blends and interlots, B.P. Baxter, Tech. information document for trade circulation, Mar. 1990

General wool metrology issues

  • M26   A comparison of New Zealand scoured wool test results 2003 to 2007, J Wear, IWTO RWG 02, Beijing, Apr 2008
  • M20   Raw wool metrology: Recent developments and future directions, P. Baxter, Proceedings of the Wool Industry Science and Technology Conference CD-ROM, Oct 2002
  • M7   Raw wool measurements: Specification or quality assurance?, B.P. Baxter, 9th Intl. Wool Text. Res. Conf., Biella, Jul. 1995 (subsequently published in Wool Technology & Sheep Breeding, Vol 44, No 1, 1996, pp 29-38)
  • M4   Current advanced technologies in raw wool testing, Yao Liu & Peter Baxter, First China International Wool Conference, Xi'an, P. R. China, Apr. 1994

Third party reports

Sheep CRC

   
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