API 936 - Refractory Personnel API-936 Question # 16 Topic 1 Discussion

API 936 - Refractory Personnel API-936 Question # 16 Topic 1 Discussion

API-936 Exam Topic 1 Question 16 Discussion:
Question #: 16
Topic #: 1

Which of the following is a valid acceptance criterion for cold crushing strength of castable used in erosive service?


A.

CCS must be no less than 80% of the manufacturer’s advertised maximum.


B.

CCS test values must average within ±10% of the manufacturer’s mean value.


C.

All individual values must exceed 75% of the manufacturer’s minimum published CCS.


D.

The lowest result must exceed 90% of ASTM C401 average for gunned materials.


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