BS EN 10247:2017 defines a method of microscopic non-metallic endogenous inclusion
assessment using picture charts.
The method does not apply to particles of a length or diameter less than 3,0 µm or a width smaller than
2,0 µm. If defined by a product standard or agreement between the involved parties for certain special
products, inclusions with a width below 2,0 µm can be evaluated by length alone. Inclusions with
dimensions exceeding the upper limits in Table 2 are evaluated as belonging to the maximum class and
noted separately with their true dimensions (see 8.5.6).
It is assumed, if particles are elongated or if there are stringers of particles, that they are parallel to each
other. Other arrangements are not covered by this draft standard. This draft European Standard applies
to samples with a microscopic precipitation approaching random distribution.
From the data of measurements obtained by this method, evaluation according to other standards can
be established.
This draft European Standard does not apply to free cutting steels.
NOTE The basic principle of this draft European Standard allows the determination of non-metallic inclusion
content by image analysis techniques.
Cross References:EN ISO/IEC 17025 (ISO/IEC 17025:2005) AS
ISO/IEC 17025:2005
ISO 9042:1988
ASTM E45 - 13
DIN 50602:1985 (E)
ISO 4967:1998
NF A 04-106
SS 111116
All current amendments available at time of purchase are included with the purchase of this document. | File Size : | 1
file
, 2.9 MB |
| ISBN(s) : | 9780580921902 |
| Note : | This product is unavailable in Ukraine, Russia, Belarus |
| Number of Pages : | 84 |
| Product Code(s) : | 30332597, 30332597, 30332597 |
| Published : | 09/19/2017 |
