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1.1 ,These test methods cover the determination of the fineness of frit in wet- or dry-milled porcelain enamels and other ceramic coatings for metals by means of the No. 200 (75-μ,m) or No. 325 (45-μ,m) sieve.
1.1 ,These test methods cover the determination of the fineness of frit in wet- or dry-milled porcelain enamels and other ceramic coatings for metals by means of the No. 200 (75-μ,m) or No. 325 (45-μ,m) sieve.