Standard test method for shear strength of plastics by punch tool 用穿孔工具测量塑料剪切强度的标准试验方法
2.
Use disposable or sterilized skin piercing equipments and follow standard hygiene precautions during acupuncture or tattooing . wear disposable gloves when in contact with blood 针灸或纹身时使用即弃或已消毒的穿孔工具,及采用标准的卫生预防措施。