This standard specifies the performance requirements for
high-pressure mercury vapour lamps for general lighting purposes,
with or without a red correcting fluorescent coating.
For some of the requirements given in this standard, reference
is made to "the relevant lamp data sheet". For some lamps these
data sheets are contained in this standard. For other lamps,
falling under the scope of this standard, the relevant data are
supplied by the lamp manufacturer or responsible vendor.
The requirements of this standard relate only to type
NOTE The requirements and tolerances permitted by this standard
correspond to testing of a type test sample submitted by the
manufacturer for that purpose. In principle this type test sample
should consist of units having characteristics typical of the
manufacturer's production and being as close to the production
centre point values as possible.
It may be expected with the tolerances given in the standard
that products manufactured in accordance with the type test sample
will comply with the standard for the majority of production. Due
to the production spread however, it is inevitable that there will
sometimes be products outside the specified tolerances. For
guidance on sampling plans and procedures for inspection by
attributes, see IEC 60410.