NF G07-171-5*NF EN ISO 9073-5:2008 Textiles - Test methods for nonwovens - Part 5 : determination of resistance to mechanical penetration (ball burst procedure)
2008NF G07-171-5*NF EN ISO 9073-5:2008 Textiles - Test methods for nonwovens - Part 5 : determination of resistance to mechanical penetration (ball burst procedure)