Errata & Addenda to ANSI/HI Standards

This page will be used to record any and all errata and addenda in reference to an approved ANSI/HI standard that has been published and is currently available for sale at the eStore.

If you have any questions regarding the errata/addenda on this page please submit in writing to HI's Technical Director, Peter Gaydon.

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Definitions:

Errata[1]: A document that contains only editorial corrections or errors introduced during the publishing process of an existing published Hydraulic Institute standard/guideline.

Addenda[1]: A document that only contains technical corrections to an existing ANSI/Hydraulic Institute standard, substantive in nature.

[1] Note: The singular form of addenda and errata are addendum and erratum respectively.

Standard	Description of Update	Status	Date
ANSI/HI 9.6.2 Rotodynamic Pumps for Assessment of Applied Nozzle Loads	Replace Set 4 Equation in Table 9.6.2.1.4a	Approved	12/2/2016
ANSI/HI 9.6.2 Rotodynamic Pumps for Assessment of Applied Nozzle Loads	Correction of missing negative sign in Table 9.6.2.1.4e for moment values Mxdmax.	Approved	9/20/2017
ANSI/HI 9.8-2012 Rotodynamic Pumps for Pump Intake Design	Correction to references	Approved	9/29/2015
ANSI/HI 9.6.4 Rotodynamic Pumps for Vibration Measurements and Allowable Value	Remove “RMS“ from page 10	Approved	5/19/2010
ANSI/HI 7.6 Controlled-Volume Metering Pumps for Test	Replace equation in section 7.6.3.4.2 page 3	Approved	9/17/2013
HI 40.6  Methods for Rotodynamic Pump Efficiency Testing	Update Figure A.3 — Requirements for static pressure tap	Approved	6/23/2016
Application Guideline for Variable Speed Pumping	Revise flow rates in Table 5.1b & Tables 5.2b	Approved	1/3/2018
ANSI/HI 9.8-2018 Rotodynamic Pumps for Pump Intake Design	Correction to Figures 9.8.3.3.1d, e, & f	Approved	11/1/2018
HI 40.5 Program Guideline for the HI Energy Rating Program	Revision of PEIBaseline to 1.00	Approved	12/3/2018
PSAP Study Guide	Updated wording in Section 25. and corrected equation for velocity	Approved	3/27/2020
ANSI/HI 14.1-14.2 Rotodynamic Pumps for Nomenclature and Definitions	Updated subscript letters in equation found in 14.2.3.7 Total discharge head	Approved	7/29/2020
ANSI/HI 14.2-14.2 Rotodynamic Pumps for Nomenclature and Definitions	Updated table 14.2a. Updated BB3 Pump graphic. Updated 14.1.4.1.2 Type Number equation and paragraph description.	Approved	7/29/2020