ISO 4650:2012 specifies two methods for the identification of rubbers, including thermoplastic elastomers, either in the raw state or in the form of vulcanized or unvulcanized mixes. The first method is based on infrared spectrometric examination using the transmission technique. The second method makes use of analysis by reflectance.
A comparison of the spectra resulting from reflectance (…
Caoutchouc — Identification — Méthodes spectrométriques dans l'infrarouge
L'ISO 4650:2012 spécifie deux méthodes pour l'identification des caoutchoucs, y compris les élastomères thermoplastiques, soit à l'état brut soit sous forme de mélanges, vulcanisés ou non. La première méthode est basée sur l'examen spectroscopique en rayonnement infrarouge utilisant la technique par transmission. La seconde méthode utilise l'analyse par réflexion.
Une…
Wheat and wheat flour — Gluten content — Part 2: Determination of wet gluten and gluten index by mec...
ISO 21415-2:2015 specifies a method for determining the content of wet gluten and the gluten index for wheat flours (Triticum aestivum L. and Triticum durum Desf.) by mechanical means. This method is directly applicable to flours. It also applies to common and durum wheat after grinding, if their particular size distribution meets the specification given in Table B.1.
Propylene oxide for industrial use — Part 2: Determination of aldehydes — Liquid chromatography
This document specifies the test method for the determination of aldehydes in propylene oxide for industrial use by high performance liquid chromatography.
This document is applicable to the determination of the four aldehydes in industrial propylene oxide, including formaldehyde, acetaldehyde, propionaldehyde, acrolein. The concentration ranges from 1 mg/kg to 100 mg/kg, and the content of…
Reaction-to-fire tests — Heat release, smoke production and mass loss rate — Part 5: Heat release ra...
This document specifies the apparatus and procedure for measuring reaction to fire behaviour under reduced oxygen atmospheres. Continuous measurements are made to calculate heat release rates, smoke and specific gas production rates, and mass loss rates. Ignition time measurements are also made and ignition behaviour is obtained. Pyrolysis parameters of specimens exposed to controlled levels of…
Tobacco heating system — Determination of carbon monoxide in the vapour phase of the aerosol (NDIR m...
This document specifies a method for determination of carbon monoxide (CO) in the vapour phase of Heated Tobacco Products (HTP) using puffing regimes defined for this category of products. The part one will address the CO determination of electrically Heated Tobacco Product (eHTP).
Propylene oxide for industrial use — Part 1: Determination of purity and trace impurities — Gas chro...
This document specifies a test method for the determination of propylene oxide and trace impurity in industrial propylene oxide by capillary gas chromatography. This document is suitable for the determination of propylene oxide with a purity of no less than 95% (mass fraction) and of trace impurity in the concentration range of 0.0001%~1.000% (mass fraction).
Rubber, vulcanized or thermoplastic — Determination of the effect of liquids
This document describes methods of evaluating the resistance of vulcanized and thermoplastic rubbers to the action of liquids by measurement of properties of the rubbers before and after immersion in test liquids. The liquids concerned include current service liquids, such as petroleum derivatives, organic solvents and chemical reagents, as well as reference test liquids.
Natural gas — upstream area — Determination of hydrate equilibrium temperature
This document specifies the general requirements for determining the equilibrium temperature of natural gas hydrate in the laboratory, and describes the test methods, instruments, materials and experimental data processing methods of the equilibrium temperature of natural gas hydrate under constant volume conditions.
