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PD 6577:1995

Current
Current

The latest, up-to-date edition.

The influence of environmental conditions on the testing of textile materials
Available format(s)

Hardcopy , PDF

Language(s)

English

Published date

15-07-1995

Foreword
Introduction
1. Scope
2. References
3. Definitions
4. Work programme
5. Experimental results
6. Discussion
7. Overall recommendations
Annex
A. (informative) Summary of results
Tables
1. Atmospheric conditions referred to in various
     standards
2. Fabric characteristics
3. Fabric/yarn characteristics
4. Fabric variability along the length (preliminary
     testing at 65% r.h./20 deg C) (CoV%)
5. Overall test specimen variability (from all conditions)
6. Atmospheric test conditions
7. Ranges of % r.h. and temperature to produce a
     significant effect
8. Sensitivity coefficients of tensile strength
     (warpwise) in N/50 mm
9. Sensitivity coefficients of tensile sterngth
     (weftwise) in N/50 mm
10. Sensitivity coefficients of elongation (warpwise) in %
11. Sensitivity coefficients of elongation (weftwise) in %
12. Sensitivity coefficients of tear strength (warpwise)
13. Sensitivity coefficients of tear strength (weftwise)
14. Sensitivity coefficients of crease recovery (warpwise)
     in degrees
15. Sensitivity coefficients of crease recovery (weftwise)
     in degrees
16. Sensitivity coefficients of mass per unit area
17. Overall summary of sensitivity coefficients: effect
     of temperature at constant humidity, mean value for
     all humidity levels for warp and weft in %
18. Overall summary of sensitivity coefficients: effect
     of humidity at constant temperature, mean value for
     all temperature levels for warp and weft in %
19. Temperature range to produce significant effect (95%)
     on all polymers and for all test properties
20. Humidity range to produce significant effect (95%)
     on all polymers and for all test properties
21. Summary of significance, size and direction of effects
     on humidity at constant temperature and temperature
     at constant humidity
22. Sensitivity coefficients for effect of humidity on
     tensile strength
23. Sensitivity coefficients for effect of humidity on
     mass per unit area
24. Preconditioning: % change from preceding weighing:
     low r.h. to 'standard atmospheres' (r.h./deg C)
25. Preconditioning: % change from preceding weighing:
     high r.h. to 'standard atmospheres' (r.h./deg C)
26. Preconditioning: regain (%) at 65% r.h./20 deg C
27. Preconditioning: regain (%) at 50% r.h./23 deg C
28. Preconditioning: effect of conditioning (in %) from
     the wet and dry (24 h) on regain and predicted
     tensile strength
29. Statistical significance of differences in mean values
     between 50% r.h./23 deg C and 65% r.h./20 deg C
     (number of examples by property)
30. Statistical significance of differences in mean values
     between 50% r.h./23 deg C and 65% r.h./20 deg C
     (number of examples by polymer)
31. Percentage differences in mean values for two
     atmospheres (number of examples for all polymers
     and all properties)
32. Key effects: two atmospheres comparison
33. Test property differences 65% r.h./20 deg C to 50%
     r.h./23 deg C
List of references

Reports the results of a study of the effects of relative humidity and temperature on certain physical properties of a number of fabrics made from a range of natural and synthetic polymers.

This Published Document presents information on the results of a controlled test programme to assess the effect of temperature and relative humidity on physical properties of textile materials.

Committee
TCI/100
DevelopmentNote
Reviewed and confirmed by BSI, November 2012. (10/2012)
DocumentType
Standard
Pages
52
PublisherName
British Standards Institution
Status
Current

ISO 2313:1972 Textiles Determination of the recovery from creasing of a horizontally folded specimen of fabric by measuring the angle of recovery
BS 2471:1978 Methods of test for textiles. Woven fabrics Determination of mass per unit length and mass per unit area
ISO 187:1990 Paper, board and pulps — Standard atmosphere for conditioning and testing and procedure for monitoring the atmosphere and conditioning of samples
BS 4303:1968 Method for the determination of the resistance to tearing of woven fabrics by the wing-rip technique
BS 2862:1984 Methods for determination of number of threads per unit length
BS EN 22313:1992 Textile fabrics. Determination of the recovery from creasing of a horizontally folded specimen by measuring the angle of recovery
BS EN 20139:1992 Textiles. Standard atmospheres for conditioning and testing
ISO 2231:1989 Rubber- or plastics-coated fabrics — Standard atmospheres for conditioning and testing
ISO 291:2008 Plastics Standard atmospheres for conditioning and testing
ISO 139:2005 Textiles Standard atmospheres for conditioning and testing
BS 2576:1986 Method for determination of breaking strength and elongation (strip method) of woven fabrics
ISO 471:1995 Rubber Temperatures, humidities and times for conditioning and testing
ISO 554:1976 Standard atmospheres for conditioning and/or testing — Specifications
BS 2865:1984 Methods for determination of linear density of yarn removed from fabric
BS 2863:1984 Method for determination of crimp of yarn in fabric

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