Oils of thujone-containing Artemisia and oil of sage (Salvia officinalis Linnaeus) — Determination o...
A small quantity of the oils is analyzed under specified conditions. The alpha- and beta-thujone contents are determined by using the internal standard or addition method. As stationary phase are used cyanopropyl methylphenyl methyl silicone, or trifluoropropylmethyl silicone, or polyethylene glycol 1500. Operating temperatures: Oven: isotherm about 100 °C when using cyanopropyl methylphenyl…
Oil of calamus — Determination of cis-beta-asarone content — Gas chromatographic method on packed co...
A small quantity of the oil is analyzed under specified conditions. The cis-beta-asarone contents is determined by using the internal standard or addition method. As stationary phase polyethylene glycol 20000 is used. Operating temperatures: Oven: isotherm about 190 °C. Injection system and detector: about 170 °C.
Nickel, ferronickel and nickel alloys — Determination of sulfur content — Infra-red absorption metho...
Applies to the determination of sulfur content of nickel and ferronickel in the range 0,001 to 0,3 % (m/m), and of nickel alloys in the range 0,001 to 0,1 % (m/m). Specifies principle, reagents and materials, apparatus, sampling and samples, procedure, expression of results, some notes and test report. Examples of compositions of nickel, ferronickel and nickel alloy are given in annex A.
Applies to the determination of the given elements of high purity, refined, wrought and cast nickel within the ranges specifies in table 1. This method is applicable to the indipendent determination of any one or more of the elements listed. Annex A gives an alternative method for preparation of nickel nitrate solution for electrothermal atomic analysis, and annex B contains a statistical report…
Nickel, ferronickel and nickel alloys — Determination of carbon content — Infra-red absorption metho...
Applies to carbon content of nickel and ferronickel in the range 0.001 to 2.0 % (m/m), and of nickel alloys in the range 0.001 to 0.5 % (m/m). Specifies principle, reagents and materials, apparatus, sampling and samples, procedure, expression of results, some notes and test report. Examples of compositions of nickel, ferronickel and nickel alloys are given in Annex A.
Cereals and cereal products — Determination of moisture content (Basic reference method)
The method is not applicable to maize, for which an identical method is specified in the annex to ISO 6540. The method is idended to serve as a standard for checking and perfecting routine methods. It consists in , if necessary, grinding of a sample, after conditioning, if required, drying of a test portion under reduced pressure, at a temperatur between 45 and 50 C and in the presence of a…
