ISO 911:1977 pdf download.Sulphuric acid for industrial use — Evaluation of sulphuric acid concentration by measurement of density.
This International Standard specifies a method for the approximate evaluation of sulphuric acid (H2SO4) concentration of sulphuric acid for industrial use, by measurement of density.
6 TEST REPORT
The test report shall include the tofloweng particulars
a) the reference of the method used;
b) the results and the method of expression used;
c) any unusual features note during the determination;
d) any operation not included in this International Standard or regarded as optional.ISO 911:1977 pdf download.
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