พลาสติก
เอกสารมาตรฐาน
ญี่ปุ่น
JSA
JIS K 7139:2009
Plastics -- Test specimens
2009
19
Offline
This Japanese Industrial Standard specifies the shapes, dimensions and indication system of the test specimens directly prepared by moulding from plastic materials as well as those prepared by machining from sheets or shaped articles.