ASTM D4944 PDF

ASTM D Related Standards: ASTM D, D, D, E11, E, E, AASHTO T Standard Test Method for Field Determination of Water. All the Controls products ASTM D standard. Enter now!. Buy ASTM D TEST METHOD FOR FIELD DETERMINATION OF WATER (MOISTURE) CONTENT OF SOIL BY THE CALCIUM.

Author: Mausho Zolojin
Country: Anguilla
Language: English (Spanish)
Genre: Relationship
Published (Last): 26 February 2013
Pages: 101
PDF File Size: 8.29 Mb
ePub File Size: 19.61 Mb
ISBN: 699-8-29502-720-1
Downloads: 82225
Price: Free* [*Free Regsitration Required]
Uploader: Zulkijar

To produce accurate results, the reagent must react with all the water which is not chemically hydrated with soil minerals or compounds in the soil. Historical Version s – view previous versions of standard. For specific hazards statements, see Section 7. A measurement is made of the gas pressure produced when a specified mass of wet or moist soil is placed in a testing device with an appropriate volume of reagent and mixed. This standard does aastm purport to address all of the safety problems associated d44944 its use.

There may be some soils containing certain compounds or chemicals that will react unpredictably with the reagent and give erroneous results. Test Method D is to be used as the test method to compare for accuracy checks and correction. Referenced Documents purchase separately The documents listed below are referenced within the subject standard but are not provided as part of the standard. Results are sometimes needed within a short time period and in locations where it is not practical to install an oven or to transport samples to an oven.

Any such problem will become evident as calibration or check tests with Test Method D are made. Some soils containing compounds or minerals that dehydrate with heat such as gypsum awtm are to have special temperature control with Test Method D may not be affected dehydrated in this test method.

ASTM D Standard

Some highly plastic clay soils or other soils not friable enough to break up may not produce representative results because some of the water may be trapped inside soil clods or clumps which cannot come in contact with the reagent. It is beyond f4944 scope of this standard to consider significant digits used in analytical methods for engineering design. Calcium carbide, used as a reagent, reacts with water as it is mixed with the soil by shaking and agitating with the aid of steel balls in the apparatus.

  MANFRED GARTNER MACROECONOMICS PDF

Link to Active This link will always route to the current Active version of the standard. The quality of the result produced by this standard is dependent on the competence of the personnel performing it, and the suitability of the equipment and facilities used.

To produce accurate results, the reagent must react with all the water which is not chemically hydrated with soil v4944 or compounds in the soil. 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.

Some soils containing compounds or minerals that dehydrate with heat atm as gypsum which are to have special temperature control with Test Method D may not be affected dehydrated in this test method. Astj inch-pound units given in parentheses are mathematical conversions, which are provided for information purposes only and are not considered standard.

For specific hazards statements, see Section 7. Users of this standard are cautioned that compliance with Practice D does not in itself ensure reliable results.

Link to Active This link will always route to the current Active version of the standard. Zstm may be some soils containing certain compounds or chemicals that will react unpredictably with the reagent and give erroneous results.

ASTM D, Test equipment Controls

Active view current version of standard. Therefore, other methods may be more appropriate when highly accurate results are required, or when the use of test results is sensitive to minor variations in the values obtained.

  INTUBAO ENDOTRAQUEAL PDF

Inaccuracies may result because specimens are too small to properly represent the total soil, from clumps of soil not breaking up to expose all the available water to the reagent and from other inherent procedural, equipment or process inaccuracies. In addition they are representative of the significant digits that generally should be retained. This test method is used for these occasions.

It is the responsibility of the user of this standard to establish appropriate safety, health, and environmental practices and determine the applicability of regulatory limitations prior to use.

ASTM D4944

Any such problem will become asgm as calibration or check tests with Test Method D are made. Reliable results depend on many factors; Practice D provides a means of evaluating some of those factors.

A measurement is made of the gas pressure produced when a specified mass of wet or moist soil is placed in a testing device with an appropriate volume of reagent and d9444. Calcium carbide, used as a reagent, reacts with water as it is mixed with the soil by shaking and agitating with the aid of steel balls in the apparatus.

Referenced Documents purchase separately The documents listed below are referenced within the subject standard but are not provided as part of the standard. Test Method D is to be used as the test method to compare for accuracy checks and correction.

Some highly plastic clay soils astj other soils not friable enough to break up asm not produce representative results because some of the water may be trapped inside soil clods or clumps which cannot come in contact with the reagent.