GB/T 6529-2008Textiles - Standard atmospheres for conditioning and testing (English PDF)

Foreword

This document was issued on 18 June 2008 by the General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China and the Standardization Administration of China, and has applied since 1 March 2009.

It replaces GB 6529-1986.

It is a GB/T standard: recommended rather than compulsory, but it is the text a Chinese reviewer, customer or inspection body applies.

1 Scope

This standard specifies the characteristics and use of a standard atmosphere for conditioning, for determining the physical and mechanical properties of textiles and a standard alternative atmosphere that maybe used if agreed between parties.

2 Terms and Definitions

For the purpose of this document, the following terms and definitions apply.

2.1 Standard atmosphere: Environment of controlled relative humidity and temperature in which textiles are conditioned and tested.

2.2 Relative humidity: Ratio, expressed as a percentage, of the actual pressure of the water vapour in the atmosphere to the saturation vapour pressure at the same temperature and at the same pressure.

2.3 Tolerance: Difference between the upper and lower tolerance limits.

2.4 Tolerance zone: Variate values of the characteristics between and including the tolerance limits.

2.5 Tolerance limits: Specified values of the characteristic giving upper and/or lower bounds of the permissible value.

2.6 Uncertainty of measurement: Parameter, associated with the result of measurement, that characterizes the dispersion of the values that could reasonably be attributed to the measurand.

2.7 Resolution(of displaying device): Smallest difference between indications of displaying that can be meaningfully distinguished.

2.8 Rapid conditioning: A conditioning method to reach an identical counterbalance effect to textile in standard atmosphere and make the speed faster obviously than that in standard atmosphere.

3 Requirements