هيئة المواصفات والمقاييس العربية السورية
The Syrian Arab Organization For Standardization & Metrology
3951
17.100
39
National - Accredited - mandatory
new
Metrology
2019-12-30
2020-06-30
Standard specification for laboratory and precision mass standards
1.1 This Syrian standard covers weights and mass standards used in laboratories , specifically classes 000,00,0,1,2,3,4,5,6,7. 1.2 This specification contains the principal physical characteristics and metrological requirements for weights that are used for: - For the verification of weighing instruments - For the calibration of weights of lower class of accuracy - With weighing instruments
الجمعية الأمريكية لاختبار والمواد:2013 ASTM: E617-13