BS EN 1425 pdf free download
BS EN 1425 pdf free download.Methods of test for petroleum and its products- BS 2000-457: Bitumen and bituminous binders – Characterization of perceptible properties (Identical with IP 457-2000).
I Scope
This European Standard specifies a method for the characterization of the perceptible properties of bitumen and bituminous binders at ambient temperature prior to testing for other properties.
WARNING The use of this standard may involve hazardous materials, operations and equipment. This standard does not purport to address all of the safety problems associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.
2 Normative references
This European Standard incorporates by dated or undated reference, provisions from other publications. This normative reference is cited at the appropriate places in the text and the publications are listed hereafter. For dated references, subsequent amendments to or revisions of any of these publications apply to this European Standard only when incorporated in it by amendment or revision. For undated references the latest edition of the publication referred to applies.
EN 58, Sampling bituminous binders.
3 Definitions
For the purposes of this European Standard, the following definitions apply.
perceptible property
property observed using one of the senses
5 Sampling
The laboratory samples shall be sampled in accordance with EN 58. The samples shall be
marked unambiguously and a record shall be kept of the date, origin and type or grade.
6 Procedure
I5 6.1 Examine the sample in its original container at approximately ambient temperature or
below. J
6.2 Examine the sample in its container and record the following:
a) quantity;
b) packing;
c) labelling.
Report any damage to the sample or sample container.
6.3 Place the unopened sample in the fume cupboard (4.3) if it is volatile or of unknown volatility. Open the container at ambient temperature. If any unusual odour is apparent, close the container, replace the sample in the fume cupboard and report the findings.
E’ 6.4 Examine the sample at approximately ambient temperature for the following perceptible properties:
a) appearance of the surface (e.g. shiny, dull, coloured);
b) presence of foreign materials (e.g. free water, dust, rust);
c) consistency (e.g. liquid or solid);
d) homogeneity of liquid binders, by gently stirring with the glass rod (4.1) (recording the
presence of any lumps, agglomerates, sediments etc.);
e) odour (the usual bitumen odour or other typical odour, e.g. from tar or solvent).
WARNING — Personnel who assess the odour characteristic of the samples should be aware of correct sniffing procedure and the hazards of potential dangerous chemicals. It is unlikely that occasional sniffing of refined bitumen will be harmful, but frequent testing of unknown materials (which may contain tar or harmful solvents) should not be done repeatedly by any one individual.
The results of the sensonal examination shall conform to the perceptible properties expected of the sample indicated on the sample container. If so, the material shall be accepted for further testing.
If the material does not conform to the perceptible properties expected, the container shall be closed immediately, and the person requesting the analysis of the sample shall be contacted and informed of the findings before the sample is handled further. BS EN 1425 pdf download.
