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What’s Behind An ASTM Test Method?

Developing an ASTM standard test method is an arduous process designed to establish a test method for industry while also offering definitive precision, accuracy and reliability (PAR) statements. The (PAR) is based on Precision & Bias (P&B) data achieved through an Inter- Laboratory Study (ILS). An ILS is a mandatory aspect of all ASTM standards that demonstrates how effectively different operators, laboratories and test instruments implement the method, which ultimately defines the precision, accuracy and reliability.