Specifies two titrimetric methods for the determination of the copper content of copper sulfide concentrates in the range 15 % (m/m) to 50 % (m/m), titrating free iodine isolated by reaction between iodide ions and copper(II) ions with sodium thiosulfate using soluble starch as the indicator after separation (method 1) or without separation (method 2) of copper from interfering elements.
Copper sulfide concentrates — Determination of gold and silver contents — Fire assay gravimetric and...
Fire assaying comprises the following steps: crucible fusion, cupellation, parting (followed by flame atomic absorption spectrometry), retreatment, correction for blank contamination. The method is applicable for copper sulfide concentrates containing 15 % (m/m) to 60 % (m/m) copper, mainly in the form of chalcopyrite and related sulfide minerals, and gold contents from 0,5 g/t to 300 g/t and…
Road vehicles — Low-speed serial data communication — Part 1: General and definitions
Specifies general definitions for low-speed serial data communication up to 125 kbit/s for road vehicle applications. The object is to define the general architecture of the communication network and the content of the data link layer and the physical layer for transmission between the different types of electronic modules on board road vehicles. Parts 2, 3 and 4 are entirely independent.
Road vehicles — Low-speed serial data communication — Part 3: Vehicle area network (VAN)
Specifies the data link layer and the physical layer of the VAN, a communications network up to 125 kbit/s, for road vehicle application. The VAN is an access-method oriented multimaster-multislave which allows optimized request/response management by special method of handling a remote transmission request (retaining access to the medium to allow insertion of a response). Defines the general…
Luminaires - Part 2: Particular requirements - Section 6: Luminaires with built-in transformers for ...
Specifies requirements for luminaires with built-in
transformers for filament lamps, with supply voltages and
output voltages not exceeding:
- 1 000 V for class I and class II luminaires and
- 250 V for class 0 luminaires.
The contents of the interpretation sheet of March 2001 have been included in this copy.
Iron ores — Determination of copper content — Part 1: 2,2'-Biquinolyl spectrophotometric method
The principle of the method specified is decomposition of the test portion by treatment with hydrochloric, nitric and perchloric acids, dehydration of silica, dilution and filtration, ignition of the residue, treatment with hydrofluoric and sulfuric acids, fusion with sodium carbonate, dissolution of the cooled melt in the filtrate, reduction of copper(II) to form the red-violet complex of copper…
Soil quality — Determination of mineral oil content — Method by infrared spectrometry and gas chroma...
Specifies two methods for the quantitative determination of mineral oil content in soil by IR spectrometry (method A) and gas chromatography (method B). Method A is applicable to mineral oil contents above 20 mg/kg on a dry matter basis, method B to those above 100 mg/kg. Petrol cannot be determined quantitatively with these methods, due to loss of volatile compounds during sample pretreatment.…
Iron ores — Determination of hygroscopic moisture in analytical samples — Gravimetric and Karl Fisch...
Specifies two methods for the determination of 0,05 % (m/m) to 6 % (m/m) of hygroscopic moisture content in test samples. Either method is used where the analytical value of the constituent to be calculated to a dry sample basis is higher than 10 % (m/m) in the following types of ores: processed ores containing metallic iron (direct reduced iron), natural or processed ores in which the sulfur…
The principle of the method specified is dissolving a test portion in hydrochloric and nitric acids and dilution of the solution to a known volume, introducing a known volume of the solution into an electrothermal atomizer of an atomic absorption spectrometer, measuring the atomic absorption of the 217,6 nm spectral resonance line energy emitted by an antimony lamp. The method is applicable to…
Steel and iron — Determination of manganese content — Flame atomic absorption spectrometric method
The principle of the method specified is dissolving a test portion in hydrochloric and nitric acids followed by evaporation with perchloric acid until white fumes appear, spraying the solution into an air-acetylene flame, spectrometrically measuring the atomic absorption of the 279,5 nm spectral line emitted by a manganese hollow cathode lamp. The method is applicable to manganese contents…
