NORME EUROPÉENNE. EUROPÄISCHE NORM. EN April ICS English version. Armourstone – Part 2: Test methods. Standard Swedish standard · SS-EN Armourstone – Part 2: Test methods. Status: Valid. Buy this standard. Price: 1 SEK. PDF. Add to cart. The European Standard EN has the status of a Swedish Standard. This document contains the official English version of EN.
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The Amber document eb indicator indicates that some caution is needed when using this document – it is either: The subsample shall be taken by randomly selecting numbered pieces of armourstone until the required size of test portion is obtained. The sampler shall be informed of the aim of the sampling.
NOTE 1 Sonnenbrand is a type of rock decay that can be present in some basalts and 113383-2 manifests itself under the influence of atmospheric conditions. Where the test portion for water absorption is larger than the remaining part of the laboratory sample it shall be used as the freeze-thaw portion. Calculate, to the nearest whole number, the cumulative percentage of pieces of armourstone Pn with a mass smaller than each specified mass in the mass distribution in accordance with the following formula: A sample increment shall be taken by 13833-2 the discharge stream in a loader bucket, making sure that the complete cross-section of the stream of material is intercepted.
For details of these and other benefits contact Membership Tel: Measure the thickness T at right angles to the laths using the carpenter’s rule or the tape measure. Methods to be used for sample reduction are also given. The specimen 1338-32 g to g for testing water absorption shall be removed from the laboratory sample by sawing or drilling.
Document Status Indicators The Green document status indicator indicates that the document is: Allow the test portion to cool to ambient temperature and weigh m0. Each piece of armourstone shall be marked clearly and durably with the allocated number. The cumulative mass of the pieces of armourstone passing each sieve shall be expressed as a percentage of the total mass of the material.
Identification of the sample: For the reduction of a sample to approximately the half amount, stretch a wire as a separation line over the sample.
NBN EN 13383-2
The methods described are also suitable for obtaining sampling increments which are to be tested separately. The sampling shall be carried out at intervals of 10 m along the length of the hold of the floating equipment. The capacity of the balance shall be suitable to allow the wire basket containing the sample to be suspended and weighed in water. If a sampling increment of a coarse grading is too large as test portion, one of the procedures as described in 4.
NOTE Copying of this form is permitted. Remove the test portion from the water and immediately remove the water from its surface using a moist chamois or equivalent synthetic leather, until the surface is dull and no longer wet and shiny, and weigh the test portion M1.
EN Armourstone consists of the following parts: Determine the percentage by weight associated with each characteristic mass as follows: When sampling during unloading, sampling increments shall be taken with the aid of the unloading equipment. Calculate the cumulative mass of pieces of armourstone including fragments Mn with a mass smaller than each specified mass in the mass distribution.
The crushing shall be carried out with a laboratory jaw crusher. Test laboratories can determine the time required to achieve constant mass for specific types and sizes of sample dependent upon the drying capacity of the oven used.
Accept and continue Learn more about the cookies we use and how to change your settings. When reducing a sample already discharged onto a floor area 4.
BS EN – Armourstone. Test methods
Ensure that the heat is extracted from the test portion as uniformly as possible form all sides. For dated references, only the ne cited applies. Otherwise the majority of the changes from the previous version are editorial. The water absorption is determined by weighing the test portion in the saturated and surface dried condition and again in the oven-dried condition.