ASTM E2995-15a
(Specification)Standard Specification for ASTM Thermohydrometers with Integral Low-Hazard Thermometers
Standard Specification for ASTM Thermohydrometers with Integral Low-Hazard Thermometers
ABSTRACT
This specification is applicable to glass thermohydrometers of various scale graduation systems, intended for use in a variety of ASTM Test Methods. The thermohydrometers covered by this specification have larger maximum permissible scale errors than do their Hg-filled counterparts. It is up to the user to decide if these thermohydrometers are appropriate for use in his or her application. This specification establishes requirements for thermohydrometers with respect to type, body, ballast, stem, scale, markings, calibration and verification, packaging, and inspection procedures.
SCOPE
1.1 This specification covers glass thermohydrometers of various scale graduation systems, intended for use in a variety of ASTM Test Methods.
1.2 The thermohydrometers presented in this standard are not exact replacements for the thermohydrometers in Specification E100; the thermometers have larger maximum permissible scale errors than do their Hg-filled counterparts. The user should decide if these thermohydrometers are appropriate for use in his or her application.
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.
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Designation:E2995 −15a
Standard Specification for
ASTM Thermohydrometers with Integral Low-Hazard
1
Thermometers
This standard is issued under the fixed designation E2995; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision.Anumber in parentheses indicates the year of last reapproval.A
superscript epsilon (´) indicates an editorial change since the last revision or reapproval.
1. Scope 2.2 ISO Standards
ISO 1768:1975Glass Hydrometers—Conventional Value
1.1 This specification covers glass thermohydrometers of
for the Thermal Cubic Expansion Coefficient (for Use in
various scale graduation systems, intended for use in a variety
the Preparation of Measurement Tables for Liquids)
of ASTM Test Methods.
1.2 The thermohydrometers presented in this standard are
3. Terminology
not exact replacements for the thermohydrometers in Specifi-
3.1 Definitions—ThedefinitionsgiveninTerminologyE344
cation E100; the thermometers have larger maximum permis-
apply.
sible scale errors than do their Hg-filled counterparts.The user
3.2 Definitions of Terms Specific to This Standard:
should decide if these thermohydrometers are appropriate for
3.2.1 ledger paper, n—a paper characterized by strength,
use in his or her application.
high tearing resistance, eraseability, water resistance, ink
1.3 This standard does not purport to address all of the
receptivity, uniformity of surface, and smoothness.
safety concerns, if any, associated with its use. It is the
3.2.1.1 Discussion—Originally,ledgerpaperwasusedespe-
responsibility of the user of this standard to establish appro-
cially for pen and ink records. Most ledger papers are surface
priate safety and health practices and determine the applica-
sized, frequently subjected to appreciable wear, and must have
bility of regulatory limitations prior to use.
a high degree of permanence and durability.
3.2.2 length of the scale, n—length of the nominal range in
2. Referenced Documents
thestem,notincludinggraduationsextendingaboveandbelow
2
2.1 ASTM Standards:
the nominal limits.
D287Test Method forAPI Gravity of Crude Petroleum and
3.2.3 thermohydrometer, n—glass hydrometer having an
Petroleum Products (Hydrometer Method)
integral thermometer.
D1250Guide for Use of the Petroleum Measurement Tables
D3290SpecificationforBondandLedgerPapersforPerma- 3.2.4 top of the thermohydrometer, n—top of the finished
3
nent Records (Withdrawn 2010) instrument.
E77Test Method for Inspection and Verification of Ther-
3.2.5 total length, n—overall length of the finished instru-
mometers
ment.
E100Specification for ASTM Hydrometers
E126Test Method for Inspection, Calibration, and Verifica- 4. Specifications
tion of ASTM Hydrometers
4.1 Thermohydrometersshallconformtothedetailedspeci-
E344Terminology Relating to Thermometry and Hydrom-
ficationsinTable1andtothegeneralrequirementsspecifiedin
etry
Sections5–15.
4.2 Thermohydrometers shall conform to the inspection
criteria found in Section 16 and the calibration and verification
1
This specification is under the jurisdiction of ASTM Committee E20 on
criteria found in Section 14.
Temperature Measurement and is the direct responsibility of Subcommittee E20.05
on Liquid-in-Glass Thermometers and Hydrometers.
4.3 Thermohydrometersmanufacturedtopreviousrevisions
Current edition approved Nov. 1, 2015. Published November 2015. Originally
ofthisspecificationshallretainthesameASTMstatusasthose
approved in 1910. Last previous edition approved in 2015 as E2995–15. DOI:
10.1520/E2995-15A
meeting current specifications.
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
4.4 At time of purchase, scale errors shall not exceed the
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
Standards volume information, refer to the standard’s Document Summary page on
maximum permissible scale error found in Table 1.
the ASTM website.
3
The last approved version of this historical standard is referenced on NOTE 1—Caution—Users should be aware that both temperature and
www.astm.org. density indications of thermohydrometers may change with rough
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1
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E2995−15a
TABLE 1 Specifications for ASTM Thermohydrometers
API Gravity Thermohydrometers
for Petroleum Products and Other Liquids of Similar Surface Tensions (33 dynes/cm or less)
Thermometer Scale in Body
ASTM Thermohydrometer No. Nominal API Gravity Range, deg
S550HL-14 -6 to +6
S551HL-14 -1 to 11
S552HL-14 9to21
S553HL-14 19 to 31
S554HL-14 29 to 41
S555HL-14 39 to 51
S556HL-14 49 to 61
S557HL-14 59 to 71
S558HL-14 69 to 81
S559HL-14 79 to 91
S560HL-14 89 to 101
S561HL-14 37 to 49
S562HL-14 64 to 7
...
This document is not an ASTM standard and is intended only to provide the user of an ASTM standard an indication of what changes have been made to the previous version. Because
it may not be technically possible to adequately depict all changes accurately, ASTM recommends that users consult prior editions as appropriate. In all cases only the current version
of the standard as published by ASTM is to be considered the official document.
Designation: E2995 − 15 E2995 − 15a
Standard Specification for
ASTM Thermohydrometers with Integral Low-Hazard
1
Thermometers
This standard is issued under the fixed designation E2995; 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 (´) indicates an editorial change since the last revision or reapproval.
1. Scope
1.1 This specification covers glass thermohydrometers of various scale graduation systems, intended for use in a variety of
ASTM Test Methods.
1.2 The thermohydrometers presented in this standard are not exact replacements for the thermohydrometers in Specification
E100; the thermometers have larger maximum permissible scale errors than do their Hg-filled counterparts. The user should decide
if these thermohydrometers are appropriate for use in his or her application.
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.
2. Referenced Documents
2
2.1 ASTM Standards:
D287 Test Method for API Gravity of Crude Petroleum and Petroleum Products (Hydrometer Method)
D1250 Guide for Use of the Petroleum Measurement Tables
3
D3290 Specification for Bond and Ledger Papers for Permanent Records (Withdrawn 2010)
E77 Test Method for Inspection and Verification of Thermometers
E100 Specification for ASTM Hydrometers
E126 Test Method for Inspection, Calibration, and Verification of ASTM Hydrometers
E344 Terminology Relating to Thermometry and Hydrometry
2.2 ISO Standards
ISO 1768:1975 Glass Hydrometers—Conventional Value for the Thermal Cubic Expansion Coefficient (for Use in the
Preparation of Measurement Tables for Liquids)
3. Terminology
3.1 Definitions—The definitions given in Terminology E344 apply.
3.2 Definitions of Terms Specific to This Standard:
3.2.1 ledger paper, n—a paper characterized by strength, high tearing resistance, eraseability, water resistance, ink receptivity,
uniformity of surface, and smoothness.
1
This specification is under the jurisdiction of ASTM Committee E20 on Temperature Measurement and is the direct responsibility of Subcommittee E20.05 on
Liquid-in-Glass Thermometers and Hydrometers.
Current edition approved Aug. 1, 2015Nov. 1, 2015. Published August 2015November 2015. Originally approved in 1910. Last previous edition approved in 20142015
as E2995 – 14.E2995 – 15. DOI: 10.1520/E2995-1510.1520/E2995-15A
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM Standards
volume information, refer to the standard’s Document Summary page on the ASTM website.
3
The last approved version of this historical standard is referenced on www.astm.org.
3.2.1.1 Discussion—
Originally, ledger paper was used especially for pen and ink records. Most ledger papers are surface sized, frequently subjected
to appreciable wear, and must have a high degree of permanence and durability.
3.2.2 length of the scale, n—length of the nominal range in the stem, not including graduations extending above and below the
nominal limits.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1
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E2995 − 15a
3.2.3 thermohydrometer, n—glass hydrometer having an integral thermometer.
3.2.4 top of the thermohydrometer, n—top of the finished instrument.
3.2.5 total length, n—overall length of the finished instrument.
4. Specifications
4.1 Thermohydrometers shall conform to the detailed specifications in Table 1 and to the general requirements specified in
Sections 5 – 15.
4.2 Thermohydrometers shall conform to the inspection criteria found in Section 16 and the calibration and verification criteria
found in Section 14.
4.3 Thermohydrometers manufactured to previous revisions of this specification shall retain the same ASTM status as those
meeting current specifications.
4.4 At time of purchase, scale errors shall not exceed the maximum permissible scale error found in Table 1.
NOTE 1—Caution—Users should be aware that both temperature and density indications of thermohydrometers may change with rough handling,
shock, exposure to aggressive liquids, and thermal cycling, among other factors. Conse
...
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