Errata

NFPA 25
Standard for the Inspection, Testing, and Maintenance of
Water-Based Fire Protection Systems
2017 Edition
Reference: Various
Errata No: 25-17-1
The Technical Committee on Inspection, Testing, and Maintenance of Water-Based Protection
Systems notes the following errors in the 2017 edition of NFPA 25, Standard for the Inspection,
Testing, and Maintenance of Water-Based Fire Protection Systems.
1. In Table 5.1.1.2, correct the cross references to read as follows:
Table 5.1.1.2 Summary of Sprinkler System Inspection, Testing, and Maintenance
Item

Frequency

Reference

Inspection
Control valves

Chapter 13

Fire department connections

Chapter 13

Gauges (wet and deluge systems)

Quarterly

Chapter 13

Gauges (dry and preaction
systems)

Monthly/quarterly

Chapter 13

Hanger/braces/supports

Annually

5.2.3

Heat tracing

Per manufacturer's requirements

5.2.76

Hydraulic design information sign Annually

5.2.65

Information signs

5.2.7, 5.2.8, 5.2.9

Annually

Internal piping condition

Chapter 14

Pipe and fittings

Annually

5.2.2

Sprinklers

Annually

5.2.1

Sprinklers (spare)

Annually

5.2.1.4

Supervisory signal devices (except Quarterly
valve supervisory switches)

5.2.54

System valves

Chapter 13

Valve supervisory signal devices

Quarterly

5.2.54

Waterflow alarm devices

Quarterly

5.2.54

Annually

5.3.43

Test
Antifreeze solution
Control valves
Gauges

Chapter 13
5 years

Main drain

Chapter 13
Chapter 13

Sprinklers

At 50 years and every 10 years
thereafter

5.3.1.1.1, 5.3.1.1.1.1, 5.3.1.1.1.2

Sprinklers

At 75 years and every 5 years
thereafter

5.3.1.1.1.5

Sprinklers (dry)

10 years and every 10 years
thereafter

5.3.1.1.1.6

Sprinklers (extra high or greater
temperature solder type)

5 years

5.3.1.1.1.4

Sprinklers (fast-response)

At 20 years and every 10 years
thereafter

5.3.1.1.1.3

Sprinklers (harsh environments)

5 years

5.3.1.1.2

Supervisory signal devices (except
valve supervisory switches)

Chapter 13

System valves

Chapter 13

Valve supervisory signal devices

Chapter 13

Waterflow alarm devices
(Mechanical)

Quarterly

5.3.32.1

Waterflow alarm devices (vane
and pressure switch type)

Semiannually

5.3.32.2

Maintenance
Low-point drains (dry pipe and
preaction systems)

Chapter 13

Annually
Sprinklers and automatic spray
nozzles protecting commercial
cooking equipment and ventilation
systems

5.4.1.7

Valves (all types)

Chapter 13

Investigation
Obstruction

Chapter 14

2. In Table 6.1.1.2, correct the cross references to read as follows:
Table 6.1.1.2 Summary of Standpipe and Hose Systems Inspection, Testing, and Maintenance
Item

Frequency

Reference

Inspection
Cabinet

Annually

Control valves

6.2.18
Chapter 13

Gauges

Weekly/quarterly

Chapter 13

Hose

Annually

NFPA 19626.2.5

Hose connection

Annually

6.2.13

Hose nozzle

Annually and after each use

NFPA 19626.2.6

Hose storage device

Annually

6.2.17

Hydraulic design information sign Annually

6.2.32

Hose valves

Chapter 13

Hose connection

Annually

6.2.1

Piping

Annually

6.2.14

Pressure-regulating devices

Chapter 13

Test
Flow test

5 years

6.3.1

Hose

5 years/3 years

NFPA 1962

Hose connections

Annually

6.2.1

Hose valves
Hydrostatic test

Chapter 13
5 years

6.3.2

Main drain test

Chapter 13

Pressure control valve

Chapter 13

Pressure-reducing valve

Chapter 13

Supervisory signal devices (except
valve supervisory switches)

Chapter 13

Valve status test

Chapter 13

Valve supervisory devices

Chapter 13

Waterflow alarm devices

Chapter 13

Maintenance
Hose connections

Annually

Hose valves
Valves (all types)

Table 6.1.2
Chapter 13

Annually/as needed

Chapter 13

3. Correct the cross references in 8.3.3.6.3.3 and 8.3.3.6.3.4 to read as follows:
8.3.3.6.3.3 If the test results are not consistent with the previous annual test, the test shall be
repeated using the test arrangement described in 8.3.3.6.3.1.
8.3.3.6.3.4 If testing in accordance with 8.3.3.6.3.1 is not possible, a flowmeter calibration
shall be performed and the test shall be repeated.
4. In Table 9.1.1.2, correct the cross references to read as follows:
Table 9.1.1.2 Summary of Water Storage Tank Inspection, Testing, and Maintenance
Item

Frequency

Reference

Inspection
Air pressure—tanks that have their air pressure
source supervised

Quarterly

9.2.2.1

Air pressure—tanks without their air pressure
source supervised

Monthly

9.2.2.2

Catwalks and ladders

Quarterly

9.2.54.1

Check valves

Chapter 13

Control valves

Chapter 13

Expansion joints

Annually

9.2.54.3

Heating system — tanks with supervised low
temperature alarms connected to constantly
attended location

Weekly*

9.2.32.1

Heating system — tanks without supervised low
temperature alarms connected to constantly
attended location

Daily*

9.2.32.2

Hoops and grillage

Annually

9.2.54.4

Interior — all other tanks

5 years

9.2.65.1.2

Interior — steel tanks without corrosion
protection

3 years

9.2.65.1.1

Painted/coated surfaces

Annua
...
--------------------------------------
...temperature

13.4.3.1.1,
13.4.4.1.1

X

Valve enclosure

Low
temperature
alarms (if
installed) are
physically
damaged

13.4.3.1.1,
13.4.4.1.1

X

13.4.3.1.63, 13.4.4.1.3

X

Preaction valve and deluge External
valve
physical
damage, trim
valves not in

X

X

X

X

appropriate
open or closed
position, valve
seat leaking
Preaction valve and deluge Electrical
valve
components
not in service

13.4.3.1.63, 13.4.4.1.3

X

Dry pipe valve/quickopening device

13.4.4.1.45.1.3
External
physical
damage, trim
valves not in
appropriate
open or closed
position,
intermediate
chamber
leaking

Sprinkler pressurereducing control valves

Not in open
position

13.5.1.1

Sprinkler pressurereducing control valves

Not
maintaining
downstream
pressures in
accordance
with design
criteria

13.5.1.1

X

Sprinkler pressurereducing control valves

Leaking, valve 13.5.1.1
damaged,
hand wheel
missing or
broken

X

13.5.2.1
Hose connection pressure- Hand wheel
reducing valves
broken or
missing, hose
threads
damaged,
leaking,
reducer
missing

X

X

X

Hose connection pressure- Cap missing
reducing valves

13.5.2.1

X

Hose rack assembly
pressure-reducing valve

Hand wheel
broken or
missing,
leaking

13.5.3.1

X

Hose valves

13.56.6.1
Leaking,
visible
obstructions,
caps, hose
threads, valve

X

handle, cap
gasket, no
restricting
device,
damaged, or in
poor condition
Hose valves

Hose threads 13.56.6.1
not compatible

Backflow prevention
assemblies

13.67.1.21
Reducedpressure
assemblies,
differentialsensing valve
relief port
continuously
discharging

Fire department
connection

Not
accessible,
damaged
couplings, or
clapper not
operating
properly or
missing

Fire department
connection

Couplings and 13.78.1
swivels
damaged, do
not rotate
smoothly,
check valve
leaking,
automatic
drain not
operating
properly or
missing

Fire department
connection

Missing
identification
sign

13.78.1

X
X

X

X

13.78.1

X

Chapter 13: Valves, Valve Components,
and Trim — Testing
Main drain

More than
10% drop in
full flow
pressure

13.2.5.23

X

Alarm devices

Water motor
and gong not
functioning

13.2.6.1

X

Alarm devices

Pressure
switch or

13.2.6.2

X

vane-type
switch not
functioning,
no alarm
Gauges

Not replaced 13.2.7.2,
or calibrated 13.2.7.3
in 5 years, not
accurate
within 3% of
scale

Control valve

13.3.3.1
Valve not
operating
through its full
range

Control valve

No spring or 13.3.3.2
torsion felt in
rod when
opening post
indicator valve

Supervisory switches

13.3.3.5.2
No signal
from two
revolutions of
hand wheel
from normal
position or
when stem has
moved onefifth of
distance from
normal
position,
signal restored
in position
other than
normal

X

Preaction valve

Priming water 13.4.3.2.1
level not
correct

X

Preaction valve

13.4.4.23.2.2
Pressure
reading at
hydraulically
most remote
nozzle and/or
at valve not
comparable to
original design
values

X

Preaction valve

Three-year
leakage test
failed

X

13.4.3.2.65

X

X

X

13.4.3.24.2.3

Deluge valve

Annual full
flow trip test
revealed
plugged
nozzles,
manual
actuation
devices did
not operate
properly

Deluge valve

13.4.3.24.2.3
Pressure
reading at
hydraulically
most remote
nozzle and/or
at valve not
compatible
with original
design values

X

Preaction valve

13.4.3.2.1210
Low air
pressure
switch did not
send signal, no
alarm

X

13.4.3.2.11,
Preaction and deluge valve Low
13.4.4.2.14
temperature
switch did not
send signal, no
alarm

X

X

X

Preaction valve

Automatic air 13.4.3.2.1412
maintenance
device did not
pass test

Dry pipe valve

Priming water 13.4.45.2.1
level not
correct

X

Dry pipe valve

13.4.45.2.2.2
Test results
not
comparable
with previous
results

X

Quick-opening device

Quick-opening 13.4.45.2.4
device did not
pass test

X

Dry pipe valve

Low air
13.4.45.2.6
pressure
switch did not
send signal, no
alarm

X

Dry pipe valve

Low
13.4.45.2.7
temperature
switch did not
send signal, no
alarm

X

Dry pipe valve

Automatic air 13.4.45.2.8
maintenance
device did not
pass test

X

Dry pipe system

Three-year
leakage test
failed

X

Sprinkler pressurereducing control valves

Test results
13.5.1.2
not
comparable to
previous
results

X

Hose connection pressure- Test results
13.5.2.2
reducing valves
not
comparable to
previous
results

X

Hose rack assembly
pressure-reducing valve

Test results
13.5.3.2
not
comparable to
previous
results

X

Hose valves (Class I and
Class III standpipe
system)

13.5.6.2.1.1
Annual test
revealed valve
leaking or
difficult to
operate

X

Hose valves (Class II
standpipe system)

Test revealed
valve leaking
or difficult to
operate

13.5.6.2.2,13.5.6.2.2.1

Backflow prevention
assemblies

Did not pass
forward flow
test

13.67.2.1

13.4.45.2.9

X

X

Issue Date: January 18, 2018
(Note: Electronic products and pamphlet reprints may have this errata incorporated. For current
information about the NFPA Codes and Standards, including this errata, please see www.nfpa.org/docinfo)
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