美标, 一般用途织物面罩，社区口罩检测标准AATCC M14

aatccm14
美标,一般用途织物面罩，社区口罩检测
其为美国和加拿大市场上首个此类文件，以协助纺织行业遵循美国疾病控制与预防中心（cdc）针对covid-19流行期间提出的建议，以及美国和加拿大的其他相关法规开发和制造成人织物面罩。
周期: 30-40个工作日
样品数量80pcs + 8m耳带+2m鼻梁筋

测试内容：
* 合体性和尺寸
* 材料和构造
* 颗粒物过滤效率
* 呼吸阻力
* 洗涤护理和使用寿命
* 头带和耳带
* 产品标签和标记
技术参数:

perform one ofthe following test methods on the material assembly. it is notnecessary to evaluate the air permeability of individual layers ina multi-layer assembly.

1. testarea.
3. thef.
).
(or15 cm/s).
test additional specimens aftermultiple laundering cycles (see laundering and careconsiderations). do not retest the same specimens.
<span font-size:11pt;"="">air permeability is measured onthe fabric only. while this test indicates the potential for thefabric to be effectively used in a face covering, construction,printing, and other processes may also impact the breathingresistance of the finished face covering.