@book{26301,
	author = {Astm},
	title = {Standard Test Method for Rockwell Hardness of Plastics and Electrical Insulating Materials},
	url = {https://drive.google.com/file/d/1lMx1GmTjOHHsfqFaE_QNlPNoM9euDkDd/view?usp=drivesdk}
}