Chemistry Methods - Canada.ca
2021-6-8 · Method to identify an unknown analyte by gas chromatography-mass spectrometry (C11.5) Effective 2020-06-18; Determination of the pH of consumer and workplace products in aqueous solutions (C13) Effective 2020-07-07; Determination of the pH of Cosmetics and Similar Consumer Products using the PC-Titrate Instrument (C13.1) Effective: 2020-02-04
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