Testing and Maintenance Requirements

DOE-STD-3024-98

facility variables may be backed

3.4.1 Testability

up by separate hardware

indicators or manual

This section shall identify those design requirements

surveillances.

(and their bases) that might exist for features that

make the system testable, especially those design

If there are requirements related to reliability of

features that preclude the need to install temporary

commercial off-the-shelf (COTS) hardware or

configurations manually on a frequent basis (for

software, they should be described.

Such

example, every 12 months or more often). For

requirements may, for example, include vendor

example, a requirement might exist to provide a test

documentation demonstrating high reliability based

panel, with spring-loaded switches and bypass

on a formal program for recording and tracking

indicating lights, that eliminates the use of manually

failures.

installed temporary configurations.

Another

example might be a requirement to bring certain

Note: Computer based systems often

electrical connections to external test points to avoid

employ COTS, for example, source

internal electrical hazards and to avoid potential

code embedded in a programmable

errors in manually installing temporary

logic controller (PLC).

Another

configurations. Operational (non-design) limitations

example would be local application

on the use of temporary configurations is addressed

programming of commercial software

in Section 4.3.1.

such as database management system

software.

3.4.2 TSR-Required Surveillances

Administrative programs that support computer and

When the system being described is the subject of

software activities (such as software configuration

TSR/OSR Surveillance Requirements, this

management and quality assurance) should be

subsection shall identify the type(s) of surveillance

described in the appropriate section of the SDD,

required (that is, checks, inspections, functional

which might be in Section 4.

tests, or calibrations); identify how often the

surveillance is required to be performed (including

any grace period that may be allowed); state the

3.3.7 Fire Protection

acceptance criteria for each surveillance; and

This subsection shall identify requirements (and

describe those features provided in the design to

their bases) that might exist for fire protection

facilitate those surveillance actions.

features within the system, including detection,

suppression, and other mitigation features. An

3.4.3 Non-TSR Inspections and Testing

example of the information provided in this section

would be requirements on ventilation system fire

If the system being described is the subject of

dampers to close at or before a critical temperature

required inspection, testing, or surveillance

is reached, and for the dampers to be rated for

requirements (including setpoint verifications or

preventing the spread of fire for a specific time.

adjustments) that are beyond those specified in the

This subsection should also identify special types of

TSRs/OSRs, this subsection shall identify them,

fire suppression materials, such as the need to use

state how often they are required to be performed,

halon in a particular area rather than a water

state the acceptance criteria for these activities, and

sprinkler system.

describe any design features necessary to perform

those surveillance actions. These items shall be

clearly distinguished from TSR-required items.

3.4 Testing and Maintenance

Requirements

Note: Where surveillances,

inspections, or testing beyond the

This section shall address those aspects of testing

TSRs have been applied at the option

and maintenance of the system being described that

of the DOE contractor and compliance

are related to the design of the system.

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