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ปัจจัยในการสอบกลับเครื่องมือ

อ่าน 1476 | ตอบ 3
ปัจจัยหลักของความสามารถสอบกลับได้
1. เปรียบเทียบอยางต่อเนืองเป็ นลูกโซ่ จากผู้ใช้งานเครืองมือวัด กลับ ไปสู่มาตรฐานทีผู้เกียวข้องยอมรับ ซึงโดยทัวไป คือ มาตรฐานระหว่างชาติ หรือ มาตรฐานแห่งชาติ
2. มีความไม่แน่นอนของการวัด โดยจะต้องคํานวณตามวิธีทีกาหนด และรายงานค่า เพือให้สามารถคํานวณความไม่แน่นอนรวมของทุกขั้นตอนได้
3. ทําเป็นเอกสาร จะต้องทําตามวิธีดําเนินการทีเป็นเอกสาร และเป็นที ยอมรับโดยทัวไป อีกทั้งผลของการเปรียบเทียบกต้องทําเป็นเอกสารเช่นกัน 
4. มีความสามารถ ห้องปฏิบัติการสอบเทียบจะต้องแสดงให้เห็นถึง ความสามารถทางเทคนิคของห้องปฏิบัติการ เช่น จนท.สอบเทียบ , เครืองมือมาตรฐาน , สภาวะแวดล้อม เป็นต้น หรือแสดงด้วยการได้รับการรับรองมาตรฐาน ISO/IEC 17025
5. ช่วงระยะเวลาระหวางการสอบเทียบ การสอบเทียบจะต้องกระทําซ้ำ ตามช่วงเวลาทีเหมาะสม และระยะของช่วงเวลานี้จะขึ้นอยู่กับหลายๆตัวแปร เช่น ความถีของการใช้งาน การนําไปใช้ ความเสถียรของเครืองมือ
6. สามารถอ้างถึงหน่วยวัด SI 

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Joy [68.202.141.xxx] เมื่อ 23/01/2019 03:34
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Joy [68.202.141.xxx] เมื่อ 19/03/2019 07:51
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Sue [68.202.141.xxx] เมื่อ 13/11/2019 08:08
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