I.S. EN ISO 1890:2009现行
Reinforcement Yarns - Determination of Twist
出版：National Standards Authority of Ireland
专家解读视频
Describes a method for the determination of twist in yarns made from textile glass, carbon, aramid or any other reinforcement fibres.
SS EN ISO 1890 Ed. 2 (2009) - Identical
UNI EN ISO 1890:2009 - Identical
NEN EN ISO 1890:2009 - Identical
SN EN ISO 1890:2009 - Identical
BS EN ISO 1890:2009 - Identical
ONORM EN ISO 1890:2009 - Identical
NF EN ISO 1890:2009 - Identical
UNE EN ISO 1890:2010 - Identical
NBN EN ISO 1890:2009 - Identical
