New Zealand Gazette – 1994 – No. 58

Page 1972

✨ Wool Test Certification



NEW ZEALAND GAZETTE

No. 58

1972

the following Tests and associated Sampling Procedures, Test Methods and Certificate Formats.

Testing of Wool

Relevant Standards and Specifications

  1. Sampling

    (a) Grab sampling.

    (b) Manual core sampling.

    (c) Machine core sampling.

    (d) Subsampling staples from grab samples.

    (e) Hand sampling scoured wool.

    IWTO-38.

    IWTO Core Test Regulations; IWTO Condition Testing Regulations for Scoured and Carbonised Wool.

    IWTO Core Test Regulations; IWTO Condition Testing Regulations for Scoured and Carbonised Wool (para. 3.4).

    IWTO-7.

    IWTO Condition Testing Regulations for Scoured and Carbonised Wool.

  2. Conditioning

    (a) Standard laboratory atmosphere.

    (b) Methods of Tests for Textiles—Conditioning Procedures. Method A, B, C, D.

    ISO 139.

    AS 2001.1.

  3. Fibre Diameter

    (a) Determination of wool fibre diameter by the projection microscope.

    (b) Mean fibre diameter by airflow method.

    (c) Measurement of the mean and distribution of fibre diameter by Sirolan-Laserscan.

    IWTO-8.

    IWTO-28.

    IWTO-12.

  4. Wool Yield

    (a) Yield/wool base plus vegetable matter.

    IWTO-19; IWTO Core Test Regulations; ASTM D584; ASTM D1113.

  5. Colour

    (a) Colour.

    NZS 8707; IWTO (E)-14.

  6. Staple Length and Staple Strength

    Determination of mean staple length and staple strength.

    IWTO Staple Test Regulations; AS2810; IWTO-30.

  7. Bulk

    Method for the measurement of the Bulk of Raw Wool.

    NZS 8716: New Zealand Standard Bulk Test Regulations (National Council of New Zealand Wool Interests Incorporated Resolution 23 May 1994).

  8. Scoured Wool Tests

    (a) Condition testing.

    (b) Residual grease testing.

    (c) Vegetable matter and other alkali-insoluble impurities in scoured wool.

    (d) Ash content.

    (e) Ethyl-alcohol extractables.

    (f) Method for the measurement of the fibre length after carding of scoured wool.

    IWTO Condition Testing Regulations for Scoured and Carbonised Wool; IWTO-33; ASTM D1576.

    IWTO-10; IWTO (E)-T.M.E. Endorsed by IWTO on 4 May 1989; ASTM D1574.

    IWTO-19; ASTM D1113.

    IWTO-19; ASTM 584.

    IWTO-19; ASTM 584.

    NZS 8719: New Zealand Standard Length After Carding Regulations (National Council of New Zealand Wool Interests Incorporated Resolution 16 October 1992).

  9. Additional Parameters

    (a) Determination of percentage of medullated fibres by projection microscope.

    (b) pH of water extract.

    IWTO-8.

    IWTO-2.

  10. Matching and Interlotting of Wool

    (a) Combined certificate for yield and fineness.

    (b) Combined certificate for colour.

    (c) Objectively matched interlots.

    (d) Objectively matched interlots.

    IWTO-31.

    NZS 8707; IWTO (E)-14.

    National Council of New Zealand Wool Interests Incorporated Resolution 9 May 1988 (endorsed by IWTO 7 June 1988).

    Amendment to IWTO Core Test Regulations endorsed by IWTO 31 March 1994.

  11. Certification

    (a) Format of IWTO certificate.

    (b) Requirements for the issue of test certificates for raw wool.

    Format for IWTO Test Certificates.

    IWTO Core Test Regulations.



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🌾 Direction on Wool Test Certification (continued from previous page)

🌾 Primary Industries & Resources
25 May 1994
Wool Industry Act, Wool Test Certification, New Zealand Wool Board, Raw Wool Definition, TELARC, International Wool Textile Organisation, Standards Association of New Zealand, American Society of Testing and Materials