ASTM F1785 - 97(2008)

    Standard Test Method for Performance of Steam Kettles

    Active Standard ASTM F1785 | Developed by Subcommittee: F26.06

    Book of Standards Volume: 15.12


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    Significance and Use

    The maximum energy input rate test is used to confirm that the steam kettle is operating within 5 % of the manufacturer's rated input so that testing may continue. This test method also may disclose any problems with the electric power supply, gas service pressure, or steam supply flow or pressure. The maximum input rate can be useful to food service operators for managing power demand.

    The capacity test determines the maximum volume of food product the kettle can hold and the amount of food product that will be used in subsequent tests. Food service operators can use the results of this test method to select a steam kettle, which is appropriately sized for their operation.

    Production capacity is used by food service operators to choose a steam kettle that matches their food output. The production capacity determined in this test method is a close indicator of how quickly the kettle can bring soups, sauces, and other liquids up to serving temperature.

    Heatup energy efficiency and simmer energy rate allow the operator to consider energy performance when selecting a steam kettle. Simmer energy rate is also an indicator of steam kettle energy performance when preparing foods which require long cook times, for example, potatoes, beans, rice, or stew.

    Pilot energy rate can be used to estimate energy consumption for gas-fired steam kettles with standing pilots during non-cooking periods.

    1. Scope

    1.1 This test method evaluates the energy consumption and cooking performance of steam kettles. The food service operator can use this evaluation to select a steam kettle and understand its energy consumption and performance characteristics.

    1.2 This test method is applicable to direct steam and self-contained gas or electric steam kettles. The steam kettle can be evaluated with respect to the following, where applicable:

    1.2.1 Maximum energy input rate (10.2).

    1.2.2 Capacity (10.3).

    1.2.3 Heatup energy efficiency and energy rate (10.4).

    1.2.4 Production capacity (10.4).

    1.2.5 Simmer energy rate (10.5).

    1.2.6 Pilot energy rate, if applicable (10.6).

    1.3 The values stated in inch-pound units are to be regarded as standard. The values given in parentheses are mathematical conversions to SI units that are provided for information only and are not considered standard.

    1.4 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 (purchase separately) The documents listed below are referenced within the subject standard but are not provided as part of the standard.

    ASTM Standards

    F1602 Specification for Kettles, Steam-Jacketed, 20 to 200 gal (75.7 to 757 L), Floor or Wall Mounted, Direct Steam, Gas and Electric Heated

    F1603 Specification for Kettles, Steam-Jacketed, 32 oz to 20 gal (1 to 75.7 L), Tilting, Table Mounted, Direct Steam, Gas and Electric Heated

    ANSI Standard

    Z83.11 American National Standard for Gas Food Service Equipment

    ASME Documents

    StandardSpecificatio to 200 gal (75.7 to 757 L), Floor or Wall Mounted, Direct Connected, Gas Fired and Electric Fired

    ASHRAE Documents

    ASHRAEHandbookofFund Table 2, 1989


    ICS Code

    ICS Number Code 91.140.65 (Water heating equipment)

    UNSPSC Code

    UNSPSC Code


    DOI: 10.1520/F1785-97R08

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