Hard coal and coke — Mechanical sampling — Part 3: Coal — Sampling from stationary lots
ISO 13909-3:2016 specifies procedures for the mechanical sampling of coal from stationary lots, for example, from wagons, barges, ships and stockpiles. These procedures are to be used when it is not possible to sample the lots during loading or discharge according to ISO 13909‑2:2016. Procedures for sample preparation are given in ISO 13909‑4:2016.
ISO 13909-3:2016 is applicable to mechanical…
Hard coal and coke — Mechanical sampling — Part 4: Coal — Preparation of test samples
ISO 13909-4:2016 describes the preparation of samples of coal from the combination of primary increments to the preparation of samples for specific tests.
Hard coal and coke — Mechanical sampling — Part 5: Coke — Sampling from moving streams
ISO 13909-5:2016 specifies procedures and requirements for the design and establishment of sampling schemes for the mechanical sampling of coke from moving streams and the methods of sampling used.
The diversity of types of equipment for sampling and the conditions under which mechanical sampling is performed make it inappropriate to specify standard designs for samplers which will be applicable…
Hard coal and coke — Mechanical sampling — Part 6: Coke — Preparation of test samples
ISO 13909-6:2016 describes the preparation of samples of coke from the combination of primary increments to the preparation of samples for specific tests.
Hard coal and coke — Mechanical sampling — Part 7: Methods for determining the precision of sampling...
In ISO 13909-7:2016, formulae are developed which link the variables that contribute to overall sampling precision. Methods are described for estimating overall precision and for deriving values for primary increment variance which can be used to modify the sampling scheme to change the precision. Methods for checking the variance of sample preparation and testing are also described.
Hard coal and coke — Mechanical sampling — Part 8: Methods of testing for bias
ISO 13909-8:2016 sets out principles and procedures for testing the bias of test samples of hard coals or cokes, taken in accordance with ISO 13909: 2016 (all parts).
NOTE In the text, the term "fuel" is used where both coal and coke would be applicable in the context and either "coal" or "coke" where only one is applicable.
Electrostatics - Part 2-3: Methods of test for determining the resistance and resistivity of solid m...
IEC 61340-2-3:2016 RLV contains both the official IEC International Standard and its Redline version. The Redline version is available in English only and provides you with a quick and easy way to compare all the changes between the official IEC Standard and its previous edition.
IEC 61340-2-3:2016 describes test methods for the determination of the electrical resistance and resistivity of solid…
Electrostatics - Part 2-3: Methods of test for determining the resistance and resistivity of solid m...
IEC 61340-2-3:2016 describes test methods for the determination of the electrical resistance and resistivity of solid materials used to avoid electrostatic charge accumulation, in which the measured resistance is in the range 10K Ohm to 1T Ohm. It takes account of existing IEC/ISO standards and other published information, and gives recommendations and guidelines on the appropriate method. This…
