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 9.2 Imperative Mood: Either the imperative mood or the
i n d i c a t i v e mood (passive voice) is suitable for use in the
d e v e l o p m e n t of specifications. The imperative mood is preferred
( e . g . , "spread adhesive with a notched trowel") and should be used
f o r instructions covering installation of products or equipment.
T h e indicative mood, passive voice (e.g.. "adhesive shall be
s p r e a d ? ) denotes a provision that is binding, but usually requires
more words than the imperative. NAVFAC Guide Specifications will be
converted to the imperative mood as they are updated under the
Criteria Program.
9.2.1 Use the imperative mood where it results in the use of
fewer words and does not reduce the clarity of technical and
c o n t r a c t u a l intent.
Example:
" I n s t a l l a t i o n of screw-jointed and
Instead of:
s o l d e r - j o i n t e d tubing: All pipe and tubing
shall be cut accurately to measurements
established by the Contractor without
s p r i n g i n g or forcing."
" I n s t a l l a t i o n of screw-jointed piping and
Say:
s o l d e r - j o i n t e d tubing: Cut piping and
tubing accurately to required measurements
and work into place without springing or
forcing."
9.3 S i m p l i f i c a t i o n : Together with clarity. completeness, and
p r e c i s i o n , b r e v i t y is an important consideration in writing
s p e c i f i c a t i o n s . T h e most-concise way of writing the specification
should be sought. Brevity is often the best way of ensuring
c l a r i t y . In achieving brevity, however, the writer must ensure that
n o n e of the technical and legal intent is lost. The following
specific rules should be followed whenever they do not change the
i n t e n t and meaning or impair the clarity of the guide specification.
a.
Redundant and Superfluous Wording: Eliminate redundant and
s u p e r f l u o u s wording such as "conforming to," "all," and
"type."
Example:
"Aluminum paint conforming to Fed. Spec.
Instead of:
TT-P-38."
Fed. Spec. TT-P-38."
"Aluminum paint:
Say:
" F l u o r e s c e n t type fixtures shall be designed
Instead of:
to operate at ..."
Y-SPEC 1/89
3-6
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