EN 13383-2 PDF
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 sampling report shall refer to this part of this European Standard and state: The faster, easier way to work with standards.
17/ DC – BS EN Armourstone. Part 2. Test methods
Their committees work with the manufacturing and service industries, government, businesses and consumers to facilitate the production of British, European and International standards. Otherwise the majority of the changes from the previous version are editorial. For example, if sampling increments are taken from armourstone discharged from a silo, the samples represent the armourstone that has been discharged, not the armourstone remaining in the silo.
The average mass of the pieces of armourstone is derived by dividing the total mass excluding fragments by the number of pieces of armourstone. Allow the test portion to cool to ambient temperature and weigh m0.
Brush off, where present, any adhesive materials from the pieces of armourstone and catch the fine material in the receiver under the 63 mm sieve. Leave the test portion immersed in water for a minimum of 8 h during cooling. The floor shall be sufficiently clean and close-textured to be able to distinguish and recover the material of the test portion from the floor material.
To facilitate the reduction procedure a sample to be reduced by using wires may be spread in a layer of thickness not greater than twice the nominal upper e of the material. When discharging a sample from a loader bucket, take all the material from a cross-sectional segment or from one side of an imaginary cross-sectional plane in the centre of the loader bucket, discharged between two parallel and vertically set plates or at one side of a vertically set plate.
BSI BS EN | Moez BEN MBAREK –
Remove the fraction which passes the 63 mm sieve and weigh its mass m1. The aim of sampling is to obtain samples that are representative of the average properties of the batch. Enter the email address you signed up with and 133832 email you a reset link. In comparison with the previous version, the following changes have been made.
A list of organizations represented on this committee can be obtained on request to its secretary. The distance between test portion and the sidewalls of the cabinet, shall not be less than 50 mm. E worldwide for CEN national Members.
Methods to be used for sample reduction are also given. Lightly moisten the sawn surface with a moist cloth and as the sawn surface dries again, examine for any of the following and record observations: Test sieves of perforated metal plate 3 Terms and definitions For the purposes of this document, the following terms and definitions apply.
Place the test portion in the wire-basket suspended from the balance and immerse them in the tank containing water with a cover of at least 50 mm of water above the top of the basket.
NBN EN 13383-2
The test portion shall consist of a single e of armourstone or part thereof with a mass of at least g. It supersedes BS EN Sampling increments consisting of individual pieces of armourstone shall be taken from the batch to be tested and may be taken from the samples which have been taken for the determination of the particle size or mass distribution.
Where no segregation of the material has occurred, the subsample may be limited to half the separated strip. In the case of 1383-2 several test portions at the same time, these shall not be touching.
Those involved in the planning and execution of sampling should work closely with the operational management to ensure safe working practices. Sampling rn used see Clause 4: A sample increment shall be taken by catching the discharge stream in a loader bucket, making sure that the complete cross-section of the stream of material is intercepted.
Reference to sampling plan used: The sample shall be reduced if necessary in accordance with the requirements of Clause 4 to produce the required test portion. The sampling increments shall be spaced at approximately equal intervals, adjusted to take account 13383-2 the required number of samples for the load to be sampled. In the case of a dispute, the automatic control shall be used.
Second number of samples can directly be taken and sent to the laboratory together with the first number, or can be taken or sent to the laboratory if necessary depending on the test result of the first number. For heavy gradings, the sampling increment may well be a single piece of armourstone and in this case considerably more than 6 sampling increments will be needed to meet the requirements of Table 1 below.
The number of pieces of armourstone in a test portion shall be as specified in Table 2.