AASHTO Designation M 231 (2005) pdf free download

Standard Specification for

Weighing Devices Used

in the Testing of Materials

SCOPE

AASHTO Designation M 231 (2005) pdf free download

This specification  covers requirements  for scales and balances,  and the loose standard masses used with balances,

used in the testing of construction  materials.

The requirements  included are descriptive of the balances required by a number of AASHTO test methods.

The general-purpose balances described herein may not be sufficiently accurate for certain tests, especially  where a high degree of accuracy is required at large capacities.  In such instances, the requirements  for the balance should be included in the test method.

The requirements  included herein are not sufficiently descriptive to be used as purchase specifications  without amplification  by the potential purchaser.

The values stated in SI units are to be regarded  as the standard.

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