Ferrochromium and ferrosilicochromium — Determination of chromium content — Potentiometric method
The method is applicable to all grades of these ferroalloys. Specifies principle, reagents, apparatus, sample, procedure, expression of results and test report.
Defines, in both English and French, terminology pertaining to
dental science, dental materials, dental equipment and the
practice of dentistry. Establishes translations of terms between
the two official languages. It is anticipated that additions to
the contents of the standard will be made annually.
Vegetable products — Determination of chloride content
The method consists in precipitating chloride by addition of an excess of a standard volumetric silver nitrate solution and titrating this excess with a standard volumetric potassium thiocyanate solution. If the product contains natural anthocyanin pigments, the method is applicable with specified modifications.
Cryolite, natural and artificial, and aluminium fluoride for industrial use — Determination of sulph...
Covers a method, the orinciple of which consists in preparing tablets from a mixture of the test portion and a binder and measuring the intensity of the K line emitted by the sulphur. The measured intensity is then compared with the intensity of emission of standard tablets of known sulphur content. The method is applicable to products having sulphur contents between 0,01 and 2 % (m/m).
Cryolite, natural and artificial, and aluminium fluoride for industrial use — Determination of phosp...
Specifies a method applicable to products having phosphorus contents equal to or greater than 0,002 % (m/m). The principle is based on alkaline fusion of a test portion with a mixture of sodium carbonate and boric acid, dissolution of the fused mass in nitric acid, neutralization of suitable aliquot portion with sodium hydroxide solution, reaction with acid ammonium molybdate solution to form a…
The Standard specifies the following characteristics of the oil. Appearance: Clear, slightly viscous liquid. Colour: Almost colourless to yellow. Odour: Characteristic, sweet, woody, persistent. Relative density at 20/20 °C: 0,968 - 0,983. Refractive index at 20 °C: 1,5030 - 1,5080. Optical rotation at 20 C: Range from - 21 to - 15 . Miscibility with 70 % (V/V) ethanol at 20 °C: 1 : 5. Ester…
Methyl chloride and ethyl chloride for industrial use — Methods of test
Specifies procedures for determining the acidity , the residue on evaporation and the water content by the Karl Fischer method. The acidity test is applicable to products having acidities, expressed as hydrochloric acid, between 1 and 50 mg/kg. For determination of ressidue on evaporation the method specified in ISO 2210 is recommended which is applicable to products leaving a residue on…
Inorganic chemical products for industrial use — General method for determination of chloride conten...
Covers a method enabling quantities of chloride eceeding 1 mg in the test portion to be determined with an absolute error of 0,2 to 0,5 mg, according to the concentration of the standard volumetric solution used. The principle of determination is based on the conversion of chloride ions into weakly ionized mercury(II) chloride, using highly ionized standard volumetric mercury(II) nitrate solution…
