فرمت: PDF
ASTM D1585:2011
Standard Test Methods for Fatty Acids Content of Naval Stores, Including Rosin, Tall Oil, and Related Products
فرمت فایلها: pdf
ASTM Section 7: Textile
مجموعه آخرین ویرایش استانداردهای ASTM تا سال 2016 مشتمل بر حداقل 340 شماره استاندارد
فایل PDF استاندارد ASTM آزمایش لرزه ای کراس هول Crosshole seismic Testing جهت دانلود قرار داده شده است. 10 صفحه...
Standard Test Methods for CrossholeSeismic Testing
Scope
These test methods are limited to the determination of horizontally traveling compression (P) and shear (S) seismic waves at test sites consisting primarily of soil materials (as opposed to rock). A preferred test method intended for use on critical projects where the highest quality data must be obtained is included. Also included is an optional method intended for use on projects which do not require measurements of a high degree of precision
ASTM F3122:2014-Standard Guide for Evaluating Mechanical Properties of Metal Materials Made via Additive Manufacturing Processes
استاندارد ASTM E290
در خصوص نحوه انجام تست خمش و جزییات آن
نسخه 2013
10 صفحه
Standard Test Methods for
Bend Testing of Material for Ductility
Scope
1.1 These test methods cover bend testing for ductility of
materials. Included in the procedures are four conditions of
constraint on the bent portion of the specimen; a guided-bend
test using a mandrel or plunger of defined dimensions to force
the mid-length of the specimen between two supports separated
by a defined space; a semi-guided bend test in which the
specimen is bent, while in contact with a mandrel, through a
specified angle or to a specified inside radius (r) of curvature,
measured while under the bending force; a free-bend test in
which the ends of the specimen are brought toward each other,
but in which no transverse force is applied to the bend itself
and there is no contact of the concave inside surface of the
bend with other material; a bend and flatten test, in which a
transverse force is applied to the bend such that the legs make
contact with each other over the length of the specimen.
1.2 After bending, the convex surface of the bend is
examined for evidence of a crack or surface irregularities. If
the specimen fractures, the material has failed the test. When
complete fracture does not occur, the criterion for failure is the
number and size of cracks or surface irregularities visible to the
unaided eye occurring on the convex surface of the specimen
after bending, as specified by the product standard. Any cracks
within one thickness of the edge of the specimen are not
considered a bend test failure. Cracks occurring in the corners
of the bent portion shall not be considered significant unless
they exceed the size specified for corner cracks in the product
standard.
1.3 The values stated in SI units are to be regarded as
standard. Inch-pound values given in parentheses were used in
establishing test parameters and are for information only.
1.4 This standard does not purport to address all of the
safety concerns, if any, 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.