استاندارد ASTM D 2850 آزمایش تحکیم UU

اختصاصی از فایل هلپ استاندارد ASTM D 2850 آزمایش تحکیم UU دانلود با لینک مستقیم و پر سرعت .

استاندارد  ASTM D 2850 آزمایش تحکیم  UU   

Standard Test Method for Unconsolidated-Undrained Triaxial Compression Test on Cohesive Soils

Scope

This test method covers determination of the strength and stress-strain relationships of a cylindrical specimen of either undisturbed or remolded cohesive soil. Specimens are subjected to a confining fluid pressure in a triaxial chamber. No drainage of the specimen is permitted during the test. The specimen is sheared in compression without drainage at a constant rate of axial deformation. This test method provides data for determining undrained strength properties and stress-strain relations for soils. This test method provides for the measurement of the total stresses applied to the specimen, that is, the stresses are not corrected for pore-water pressure

ASTM A99-2014: Standard Specification for Ferromanganese

اختصاصی از فایل هلپ ASTM A99-2014: Standard Specification for Ferromanganese دانلود با لینک مستقیم و پر سرعت .

ASTM E 1409:2013-Standard Test Method for Determination of Oxygen and Nitrogen in Titanium and Titanium Alloys by Inert Gas Fus

اختصاصی از فایل هلپ ASTM E 1409:2013-Standard Test Method for Determination of Oxygen and Nitrogen in Titanium and Titanium Alloys by Inert Gas Fusion دانلود با لینک مستقیم و پر سرعت .

ASTM E 1409:2013-Standard Test Method for Determination of Oxygen and Nitrogen in Titanium and Titanium Alloys by Inert Gas Fusion

استاندارد ASTM E10 در خصوص انجام تست سختی سنجی مواد فلزی در مقیاس برینل

اختصاصی از فایل هلپ استاندارد ASTM E10 در خصوص انجام تست سختی سنجی مواد فلزی در مقیاس برینل دانلود با لینک مستقیم و پر سرعت .

استاندارد ASTM E10

در خصوص انجام تست سختی سنجی مواد فلزی

در مقیاس برینل

نسخه 2012

32 صفحه

Scope
1.1 This test method covers the determination of the Brinell
hardness of metallic materials by the Brinell indentation
hardness principle. This standard provides the requirements for
a Brinell testing machine and the procedures for performing
Brinell hardness tests.
1.2 This standard includes additional requirements in four
annexes:
Verification of Brinell Hardness Testing Machines Annex A1
Brinell Hardness Standardizing Machines Annex A2
Standardization of Brinell Hardness Indenters Annex A3
Standardization of Brinell Hardness Test Blocks Annex A4
1.3 This standard includes nonmandatory information in an
appendix which relates to the Brinell hardness test:
Table of Brinell Hardness Numbers Appendix X1
Examples of Procedures for Determining
Brinell Hardness Uncertainty
Appendix X2
1.4 At the time the Brinell hardness test was developed, the
force levels were specified in units of kilograms-force (kgf).
Although this standard specifies the unit of force in the
International System of Units (SI) as the Newton (N), because
of the historical precedent and continued common usage of kgf
units, force values in kgf units are provided for information and
much of the discussion in this standard refers to forces in kgf
units.
1.5 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.

استاندارد ASTM D6923 در خصوص Standard Test Method for Evaluation of Engine Oils in a High Speed, Single-Cylinder Diesel Engine—

اختصاصی از فایل هلپ استاندارد ASTM D6923 در خصوص Standard Test Method for Evaluation of Engine Oils in a High Speed, Single-Cylinder Diesel Engine—Caterpillar 1R Test Procedure دانلود با لینک مستقیم و پر سرعت .

استاندارد ASTM D6923

Standard Test Method for Evaluation of Engine Oils in a High Speed, Single-Cylinder Diesel Engine—Caterpillar 1R Test Procedure

64 صفحه

Scope
1.1 This test method covers stressing an engine oil under
modern high-speed diesel operating conditions and measures
the oil’s deposit control, lubrication ability, and resistance to oil consumption. It is performed in a laboratory using a
standardized high-speed, single-cylinder diesel engine.
4
1.2 The values stated in SI units are to be regarded as the
standard. The values given in parentheses are for information
only.
1.3 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 requirements prior to use. Being an engine
test method, this test method does have definite hazards that
require safe practices (see Appendix X2 on Safety).