Evaluation of the precision and accuracy of laboratory equipment that determines the quality of ovine fibres

Authors

  • Mirian Yuliza Rubio Cieza Escuela Profesional de Ingeniería Agroindustrial, Universidad Nacional Autónoma de Chota, Cajamarca, Perú
  • Tony Steven Chuquizuta Trigoso Escuela Profesional de Ingeniería Agroindustrial, Universidad Nacional Autónoma de Chota, Cajamarca, Perú
  • Edgar Carlos Quispe Peña Facultad de Zootecnia, Universidad nacional Agraria La Molina, Lima, Perú
  • Diego Sacchero Laboratorio de Fibras Textiles, INTA, Bariloche, Argentina

DOI:

https://doi.org/10.15381/rivep.v31i2.17847

Keywords:

precision, accuracy, tolerance, sheep fibre, MDF

Abstract

The study aimed to evaluate the precision and accuracy of equipment that determine the quality of sheep fibres. The equipment used (total = 15) were Sirolan Laserscan, OFDA 2000, Minifiber EC and Fiber EC, belonging to nine laboratories in Peru (n=7) and Argentina (n=2). The mean values of the mean diameter fibre (MDF) were determined in relation to the tolerance limits given by IWTO 12 and IWTO 47, using samples of fibres with known diameters. The accuracy was determined from the average obtained from the subsamples minus the actual value of the samples and the precision was evaluated by the standard deviation of the repetitions. Dunnett's multiple comparisons method was used for precision and accuracy. The results showed that the equipment coded as B and C in laboratories 4 and 8 were the most accurate, while equipment B and D in laboratories 5 and 8 shoed the highest precision. Six of the nine laboratories had equipment that determined the MDF within the tolerance limits given by IWTO 12 and IWTO 47. It is recommended to implement inter-laboratory and instrument tests that evaluate fibres at a national level.

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Published

2020-06-20

Issue

Vol. 31 No. 2 (2020)

Section

Artículos Primarios

License

Copyright (c) 2020 Mirian Yuliza Rubio Cieza, Tony Steven Chuquizuta Trigoso, Edgar Carlos Quispe Peña, Diego Sacchero

Creative Commons License

This work is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International License.

AUTHORS RETAIN THEIR RIGHTS:

a. Authors retain their trade mark rights and patent, and also on any process or procedure described in the article.

b. Authors retain their right to share, copy, distribute, perform and publicly communicate their article (eg, to place their article in an institutional repository or publish it in a book), with an acknowledgment of its initial publication in the Revista de Investigaciones Veterinarias del Perú (RIVEP).

c. Authors retain theirs right to make a subsequent publication of their work, to use the article or any part thereof (eg a compilation of his papers, lecture notes, thesis, or a book), always indicating the source of publication (the originator of the work, journal, volume, number and date).

How to Cite

Rubio Cieza, M. Y., Chuquizuta Trigoso, T. S., Quispe Peña, E. C., & Sacchero, D. (2020). Evaluation of the precision and accuracy of laboratory equipment that determines the quality of ovine fibres. Revista De Investigaciones Veterinarias Del Perú, 31(2), e17847. https://doi.org/10.15381/rivep.v31i2.17847