Acetic acid for industrial use — Methods of test — Part 1: General
Gives general instructions and also specifies the methods to be used for the determination of dry residue after evaporation on a water bath, for the determination of the crystallizing point (temperature) of glacial acetic acid, for the determination of water content, for the measurement of colour and for the determination of arsenic content. The method is applicable to products having acedic acid…
Acetic acid for industrial use — Method of test — Part 2: Determination of acetic acid content — Tit...
The principle consists in titration of a test portion with standard volumetric sodium hydroxide solution, using phenolphthalein as indicator. Calculation of the acid content, making allowance for any formic acid present, determined separately (see ISO 753/3). This International Standard has also been approved by the International Union of Pure and Applied Chemistry (IUPAC). International…
Pipe connections, threaded to ISO 228/1, for plain end steel and other metal tubes in industrial app...
This second edition cacncels replaces the first edition (1973). Establishes a limited range of threads for connenction of tubes to machines or equipment and indicates the related outside diameters of the tubes. The outside diameters ranging from 4 mm up to and including 50 mm.
The document gives equivalent terms and defines some of the relevant terms used in the chemical technology of this product. - Cancels and replaces ISO Recommendations R 1542-1971 and R 1543-1971 and constitutes their technical revision.
Light olefins for industrial use — Determination of impurities by gas chromatography — General consi...
Relates particularly to ethylene (ethene), propylene (propene) and butadiene (1,3-butadiene). Lists the apparatus to be used, describes sampling and procedure and provides information on the expression of results and the data to be included in the test report.
Butadiene for industrial use — Determination of hydrocarbon impurities — gas chromatographic method
Covers a method based on the selection of a gas chromatography column allowing the separation of the impurities to be determined. A gaseous test portion is passed through this column and the peaks obtained are detected by flame ionization and compared with those derived from an external standard. Columns and operating conditions having been found suitable for such a test are indicated in Annex A…
Ethylene for industrial use — Determination of hydrocarbon impurities — Gas chromatographic method
Covers a method based on the selection of a gas chromatography column allowing the separation of the impurities to be determined. A gaseous test portion is passed through this column and the peaks obtained are detected by flame ionization and compared with those derived from an external standard. Columns and operating conditions having been found suitable for such a test are indicated in Annex A…
Propylene for industrial use — Determination of hydrocarbon impurities — Gas chromatographic method
Covers a method based on the selection of a gas chromatography column allowing the separation of the impurities to be determined. A gaseous test portion is passed through this column and the peaks obtained are detected by flame ionization and compared with those derived from an external standard. Uses two types of columns, one for the determination of methane, ethane and acetylene (adsorption…
Ethylene and propylene for industrial use — Determination of traces of carbon monoxide and carbon di...
Describes a method based on the separation of carbon monoxide, methane and corbon dioxide by gas chromatography through a Carbosieve B or Porapak N column, followed by passage through a column of hydrogenation catalyst which transforms the oxides of carbon to methane thus allowing the use of a flame ionization detector to make the final determination.
