请问有哪位大佬知道这个出自国外哪份标准，谢谢

谁的流年不繁花

请问有哪位大佬知道这个内容出自国外哪份标准，谢谢，以下为标准部分内容。
C . Thermocouple Placement

· Adedicated thermocouple hole for placement of the surface thermocouple ( T ) is required . The hole should typically be 1/8" to 1/4"(3.2mm to 6.4mm) diameter , depending on thermocouple wire used and should be 0.625"±0.125"(15.9mm±3.2mm) deep . Placement of the surface thermocouple is to be in a controlling cross section and the thermocouple is to be accessible during the heat treatment process . The surface thermocouple ( T ) hole should be located in the center of the largest area of the die in the backsideandshouldbeatlest1/4Tx1/4W or mid - radius from the nearest corner . The core thermocouple ( T ) should be placed as close to the center of mass as possible using existing coolant holes . In cases where core thermocouple placement is not possible , the furnace load shall be controlled from a load block that represents the maximum thickness of the die with a thermocouple at the center of mass . If a waterline hole is used for a thermocouple , it shall be packed with a fiber refractory material to prevent direct contact with quenchant .
· Thermocouple wires must be secured to prevent movement during quenching .
· If multiple blocks are hardened in the same load , thermocouples should be placed in the block with the largest cross section .

shenfuhai

来自NADCA207标准。