AS 4176.7:2010 pdf – Multilayer pipes for pressureapplications Part 7: Multilayer piping systems for hotand cold water plumbing applications—Assessment of conformity.
3.1.8
initial type testing
ITT
type testing carried out by or on behalf of a certification body for certification purposes
3.1.9
batch release test
BRT
test performed by or on behalf of the manufacturer on a batch of components, which has to be satisfactorily completed before the batch can be released
3.1.10
process verification test
PVT
test performed by or on behalf of the manufacturer on materials, components, joints or assemblies at specific intervals to confirm that the process continues to be capable of producing components which conform to the requirements given in the relevant standard
NOTE Such tests are not required to release batctes of components and are carried out as a measure of process contro&
3.1.11
audit test
AT
test performed by or on behalf of a certification body to confirm that the matenal, component, joint or assembly continues to conform to the requirements given in the relevant standard and to provide information to assess the effectiveness of the quality system
3.1.12
Indirect test
IT
test performed by or on behalf of the manufacturer, different from the test specified for that particular characteristic, having previously verified its correlation with the test specified
3.1.13
witness testing
WT
testing accepted by a certification body for initial type testing and/or audit testing, which is carried out by or on behalf of the manufacturer and supervised by a representative of the certification body qualified in testing
3.1.14
material or compound batch
clearly identifiable quantity of a particular material or compound
3.1.15
production batch
clearly identifiable collection of units, manufactured consecutively or continuously under the same conditions, using material or compound conforming to the same specification
3.1.16
lot
clearly identifiable sub-division of a batch for inspection purposes
3.1.17
sample
one or more units of product drawn from a batch or lot, selected at random without regard to their quality
NOTE The number of units of product in the sample is Ihe sample size.
lf a product does not conform to the requirements in respect of any characteristic given in Table 10, the retestprocedure detailed in the manufacturers quality plan shall be performed. if third-party certification is involved,the certification body shall be informed.
lf the retest procedure does not confirm conformity of the product to the requirements, then the process shallbe investigated and corrected in accordance with the procedures given in the manufacturer’s quaity plan.
4.2.5 Audit tests (ATs)
lfthird-party certification is involved, those characteristics specified in ISO 21003-2:2008 andISO 21003-3:2008 and listed in Table 11 are intended to be audit tested with the minimum sampling frequency given in Table 11.
AS 4176.7:2010 pdf – Multilayer pipes for pressureapplications Part 7: Multilayer piping systems for hotand cold water plumbing applications—Assessment of conformity
