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BS ISO 18067:2015 pdf free

BS ISO 18067:2015 pdf free.Textiles一Synthetic filament yarns一Determination of shrinkage in dry-hot air (after treatment)
BS ISO 18067 specifies methods for the determination of dry-hot air shrinkage (after treatment) of synthetic filament yarns, skein method and single-end method. The skein method provides two forms of measurement which are of manual and automatic types. The single-end method gives the result by manual measurement.
In case of dispute, manual measurement procedure is to be used.
If these methods are not applicable, the corresponding test methods may be agreed between interested parties.
BS ISO 18067 is applicable to synthetic filament yarns oflinear density less than 3 000 dtex.
BS ISO 18067 is not applicable to partially oriented yarns.
The following documents, in whole or in part, are normatively referenced in this document and are indispensable for its application. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.
ISO 139, Textiles一Standard atmospheres for conditioning and testing
Length-measuring stand, which meets the following requirements:
a) a stand for measuring specimen length of least 1 mm gauge length;
b) a millimetre scale to determine specimen length, accurate to within +1 mm;
c) a steel hook or a clamp, where the top of the hook or the lower side of the clamp (where the specimen hung from) is positioned in line with the zero index of the scale;
d) tensioning weights with hooks or clamps for applying tensile force to specimens, accurate to within ±10 %.
Automatic shrinkage tester, which meets the following requirements:
a) automatically applies specified tension, measures specimen length, and calculates the shrinkage based on length values;
b) 0,05 mm resolution of length measurement;.
c) a specimen holder for suspending specimens more than 600 mm high, which can consistently hold 2,5 cN load per skein for the duration of the testing procedure with several skeins arranged and tested in succession.
NOTE Other mechanical devices may be used for the test provided that equivalent results are obtained.BS ISO 18067 pdf download.

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