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BS 5688-27:1986 Methods of test for orthoboric acid (boric acid), diboron trioxide (boric oxide), disodium tetraborates, sodium perborates and crude sodium borates for industrial use. Determination of total and alkali-soluble silica contents of crude sodium borates
standard by BSI Group, 07/31/1986
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Spectrometric method.Cross References:
BS 5688:Part 0