ASTM E715-80 (2022) PDF

Full title and description

ASTM E715-80(2022) — Standard Specification for Gravity-Convection and Forced-Circulation Water Baths. This designation refers to the original ASTM E715 specification first issued in 1980 and maintained by periodic reapproval; the document sets performance requirements for general-purpose laboratory water baths used for testing and calibration, covering gravity-convection and forced-circulation designs.

Key identifying details: designation ASTM E715-80 with a reapproval cycle noted as (2022) to indicate the 1980 standard was reapproved in 2022.

Abstract

This specification defines performance requirements and classification for unloaded, covered gravity-convection and forced-circulation water baths commonly used in laboratory testing. It applies to units operating from 5 °C above ambient up to 100 °C and to baths with water volumes up to about 100 L. Requirements cover controllability of temperature by automatic devices and uniformity/time-constant tolerances appropriate to the particular bath type.

General information

• Status: Reapproved (active at last reapproval); maintained as the 1980 designation reapproved in 2022.
• Publication date: Original issue 25 January 1980; reapproved Feb 2, 2022 (reapproval of the 1980 edition).
• Publisher: ASTM International.
• ICS / categories: 71.040.20 — Laboratory ware and related apparatus.
• Edition / version: ASTM E715-80, reapproval cycle shown as (2022) — commonly noted as the 1980 R22 reapproved edition.
• Number of pages: 2 pages (short performance specification).

Summary references for the above bibliographic details and history (original date, reapproval, ICS and page count).

Scope

This standard covers performance requirements for general-purpose water baths ordinarily used in testing operations. It applies to gravity-convection and forced-circulation water baths operating from about 5 °C above ambient to 100 °C, for water volumes up to 100 L, and is limited to unloaded, covered bath configurations. The specification defines classification by type and establishes required tolerances for temperature uniformity and time constant for each type.

Key topics and requirements

• Classification of baths (types such as IA, IB, IIA, IIB) by performance characteristics and intended use.
• Operating temperature range: from approximately ambient + 5 °C up to 100 °C.
• Maximum typical working water volume covered by the specification (up to ≈100 L).
• Requirement for automatic temperature control and specified limits for temperature uniformity and time constant when tested by appropriate methods.
• Applicability to unloaded, covered baths (performance spec rather than construction detail manual).

Typical use and users

Laboratory technicians, quality-control and testing laboratories, instrument manufacturers, calibration laboratories, and procurement/specification authors use this standard to select, test, and verify performance of general-purpose water baths used for instrument calibration and routine thermal testing. It is most relevant where reproducible temperature control and documented uniformity are required for test methods or instrument verification.

Related standards

ASTM E715 is maintained by the ASTM E41 committee (Laboratory Apparatus). Users commonly reference it alongside other temperature- and calibration-related standards and test methods (for example, standards addressing thermometer calibration and temperature uniformity surveys). It is part of the broader set of laboratory-equipment specifications produced by the E41 subcommittees.

Keywords

gravity-convection, forced-circulation, water bath, thermostatic bath, laboratory apparatus, temperature uniformity, time constant, ASTM E715, E41 committee, calibration bath.

FAQ

Q: What is this standard?

A: ASTM E715-80(2022) is the designation for the ASTM standard titled "Standard Specification for Gravity-Convection and Forced-Circulation Water Baths" — the original standard was published in 1980 and the document was reapproved during the 2022 reapproval cycle.

Q: What does it cover?

A: It covers performance requirements for unloaded, covered gravity-convection and forced-circulation water baths used in laboratory testing: operating range (ambient +5 °C to 100 °C), applicable water volume (up to ~100 L), automatic temperature control, and required tolerances for uniformity and time constant for defined bath types.

Q: Who typically uses it?

A: Laboratory managers, QC/QA staff, calibration technicians, equipment manufacturers and purchasers use the standard to specify, test, or verify water-bath performance for testing and calibration tasks.

Q: Is it current or superseded?

A: The underlying ASTM E715-80 document is the 1980 specification; ASTM records show the 1980 edition has been periodically reapproved and was reapproved in the 2022 cycle, meaning the 1980 text remains the active/reapproved edition as of that reapproval. Users should check ASTM International for the current legal/publication status before procurement or formal citation.

Q: Is it part of a series?

A: Yes — it is part of ASTM's E-series standards for laboratory apparatus and is maintained under the E41 committee and its subcommittees that cover laboratory ware, thermostatic equipment, and related apparatus.

Q: What are the key keywords?

A: Gravity-convection, forced-circulation, water baths, temperature uniformity, time constant, laboratory apparatus, ASTM E715, E41.