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ASTM E126-05

(Test Method)

Standard Test Method for Inspection and Verification of Hydrometers

Standard Test Method for Inspection and Verification of Hydrometers

SCOPE
1.1 This test method describes the principles, apparatus, and procedures for the inspection and verification of glass hydrometers of the constant-mass, variable-displacement type. It is intended to apply to ASTM hydrometers as well as to glass hydrometers in general.
1.2 The values stated in inch-pound units are to be regarded as the standard. The values given in parentheses are mathematical conversions to SI units that are provided for information only and are not considered standard. The metric equivalents of inch-pound units may be approximate.
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 limitations prior to use.

General Information

Status
Historical
Publication Date
14-Jun-2005
ICS
17.060 - Measurement of volume, mass, density, viscosity
Technical Committee
E20 - Temperature Measurement
Drafting Committee
E20.05 - Liquid-in-Glass Thermometers and Hydrometers
Current Stage
Ref Project

Relations

Replaces
ASTM E126-92(1998) - Standard Test Method for Inspection and Verification of Hydrometers
Effective Date
15-Jun-2005
Replaced By
ASTM E126-05a - Standard Test Method for Inspection, Calibration, and Verification of ASTM Hydrometers
Effective Date
01-Nov-2005
Referred By
ASTM E2995-15a(2020) - Standard Specification for ASTM Thermohydrometers with Integral Low-Hazard Thermometers
Effective Date
15-Jun-2005
Referred By
ASTM D287-22 - Standard Test Method for API Gravity of Crude Petroleum and Petroleum Products (Hydrometer/Method)
Effective Date
15-Jun-2005
Referred By
ASTM E100-19 - Standard Specification for ASTM Hydrometers
Effective Date
15-Jun-2005
Referred By
ASTM E50-17 - Standard Practices for Apparatus, Reagents, and Safety Considerations for Chemical Analysis of Metals, Ores, and Related Materials
Effective Date
15-Jun-2005
Referred By
ASTM D7928-21e1 - Standard Test Method for Particle-Size Distribution (Gradation) of Fine-Grained Soils Using the Sedimentation (Hydrometer) Analysis
Effective Date
15-Jun-2005
Referred By
ASTM D6466-10(2018) - Standard Test Method for Diameter of Wool and Other Animal Fibers By Sirolan-Laserscan Fiber Diameter Analyser
Effective Date
15-Jun-2005
Referred By
ASTM D4371/D4371M-06(2019)e1 - Standard Test Method for Determining the Washability Characteristics of Coal
Effective Date
15-Jun-2005
Referred By
ASTM E344-20 - Terminology Relating to Thermometry and Hydrometry
Effective Date
15-Jun-2005

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ASTM E126-05 - Standard Test Method for Inspection and Verification of Hydrometers
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Standards Content (Sample)

NOTICE: This standard has either been superseded and replaced by a new version or withdrawn. Contact ASTM
International (www.astm.org) for the latest information.
Designation: E 126 – 05
Standard Test Method for
1
Inspection and Verification of Hydrometers
This standard is issued under the fixed designation E 126; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. A
superscript epsilon (e) indicates an editorial change since the last revision or reapproval.
This standard has been approved for use by agencies of the Department of Defense.
1. Scope 3.2.2 density, n—mass of a unit volume of material.
3.2.3 specific gravity, n—ratio of the mass of a given
1.1 This test method describes the principles, apparatus, and
volume of material at a stated temperature to the mass of an
procedures for the inspection and verification of glass hydrom-
equalvolumeofgas-freedistilledwateratastatedtemperature,
eters of the constant-mass, variable-displacement type. It is
expressed by
intended to apply to ASTM hydrometers as well as to glass
hydrometers in general. Specific Gravity x/x F ~or y/y C!
(2)
1.2 The values stated in inch-pound units are to be regarded
asthestandard.Thevaluesgiveninparenthesesaremathemati-
where x is usually 60° and y is usually 15.56 °C.
cal conversions to SI units that are provided for information
3.2.4 thermo-hydrometer, n—glass hydrometer having a
onlyandarenotconsideredstandard.Themetricequivalentsof
thermometer combined with a hydrometer in one instrument.
inch-pound units may be approximate.
3.2.5 Other descriptions of terms relating to thermometers
1.3 This standard does not purport to address all of the
are included in Test MethodE77.
safety concerns, if any, associated with its use. It is the
4. Significance and Use
responsibility of the user of this standard to establish appro-
priate safety and health practices and determine the applica-
4.1 Thepurposeofthistestmethodistoestablishacommon
bility of regulatory limitations prior to use.
method by which manufacturers and users of hydrometers may
make tests to establish the validity of their readings in use or as
2. Referenced Documents
a standard for comparison of hydrometer performance for
2
2.1 ASTM Standards:
evaluation or selection purposes, or both.
D 1265 Practice for Sampling Liquefied Petroleum (LP)
4.2 The goal is to provide a standard method that is simple,
Gases—Manual Method
easily understood, and which can be performed by the end user
E77 Test Method for Inspection and Verification of Ther-
in the hope that it will result in a better understanding of
mometers
hydrometers.
E 344 Terminology Relating to Thermometry and Hydrom-
5. Apparatus
etry
5.1 Graduated Metal Scales, of the conventional type, for
3. Terminology
checking linear dimensions. If more convenient, metal tem-
3.1 Definitions:
plates may be used on which lines are ruled at suitable
3.1.1 The definitions given in Terminology E 344 apply.
distancesfromreferencepointscorrespondingtothemaximum
3.2 Definitions of Terms Specific to This Standard:
and minimum values of the specified dimensions.
3.2.1 API gravity, n—gravity obtained from the following
5.2 Micrometers, of the conventional type, for checking
relationship:
diameters.
5.3 Comparators, for the verification of hydrometers. Suit-
API Gravity, deg 5 141.5/~sp gr 60/60 °F!2 131.5 (1)
able types are described in Appendix X1.
5.4 Equipment for checking the thermometers of thermo-
hydrometers is described in Test MethodE77.
1
This test method is under the jurisdiction of ASTM Committee E20 on
Temperature Measurement and is the direct responsibility of Subcommittee E20.05
6. Reference Standards
on Liquid-in-Glass Thermometers and Hydrometers.
Current edition approved June 15, 2005. Published June 2005. Originally 6.1 Primary Standard Hydrometers—Primary standard hy-
approved in 1959. Last previous edition approved in 1998 as E 126 – 92 (1998).
drometers should have similar dimensions and shape to the
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
instruments to be tested, but more finely subdivided. For
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
example, if the instruments to be tested are subdivided to
Standards volume information, refer to the standard’s Document Summary page on
the ASTM website.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
1

---------------------- Page: 1 ----------------------
NOTICE: This standard has either been superseded and replaced by a new version or withdrawn. Contact ASTM
International (www.astm.org) for the latest information.
E126–05
0.0005 sp gr, the primary standards would have graduations of 7.2.1.1 In order that readings shall be uniform and repro-
0.0002 or 0.0001 sp gr. Primary standards must be calibrated duci
...

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1.1 This test method describes the principles, apparatus, and procedures for the inspection, calibration, and verification of ASTM glass hydrometers. This test method is applicable to ASTM hydrometers and may be used for other general hydrometers of the constant-mass, variable-displacement type.  
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5.1 Many petroleum products, and some non-petroleum materials, are used as lubricants, and the correct operation of the equipment depends upon the appropriate viscosity of the liquid being used. In addition, the viscosity of many petroleum fuels is important for the estimation of optimum storage, handling, and operational conditions. Thus, the accurate determination of viscosity is essential to many product specifications.
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1.1 This test method measures the change in mass of a rolled erosion control product when specimens are submerged in water for a prescribed period of time. The change in mass is reported as a percentage of the original dry mass of the specimen.  
1.2 Units—The values stated in either SI units or inch-pound units [given in brackets] are to be regarded separately as standard. The values stated in each system may not be exact equivalents; therefore, each system shall be used independently of the other. Combining values from the two systems may result in nonconformance with the standard. Reporting of test results in units other than SI shall not be regarded as nonconformance with this standard.  
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This test method covers the procedures for determining the viscosity of transparent liquids by bubble time method. The transparent liquids should be free from crystalline or gel particles. Test apparatus include a constant-temperature bath, standard viscosity tubes, a series of standard viscosity tubes as reference standards, timing device, tube racks, and viscosity tube corks.
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5.1 This test method may be used to validate the performance of a specific rotational viscometer apparatus.  
5.2 This test method may be used to validate the performance of a specific method based upon the measurement of viscosity using rotational viscometer apparatus.  
5.3 This test method may be used to determine the repeatability of a specific apparatus, operator, or laboratory.  
5.4 This test method may be used for specification or regulatory compliance purposes.
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1.1 This test method provides procedures for validating viscosity measurements by rotational viscometers of Newtonian fluids. Performance parameters determined include viscosity repeatability (precision), detection limit, quantitation limit, linearity, and bias.  
1.2 Validation of apparatus performance and analytical methods is requested or required for quality initiatives or where results may be used for legal purposes.  
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Standard Test Method for Relative Extensional Viscosity of Agricultural Spray Tank Mixes

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4.1 Extensional viscosity is a measure of the resistance of a liquid to stretching forces, such as those occurring during the disruption of liquid films and the formation of sprays used in agriculture and other purposes including painting operations or metal working. This method for measurement of a Screen Factor, gives a relative value for extensional viscosity, which may be used:  
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4.1.3 To determine the extent of breakdown of polymer solutions used as drift control additives during the recirculation of the solutions through pumps and screens.  
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1.5 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.  
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