NZQA Expiring unit standard
8391 version 9
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Title
Demonstrate knowledge of chemical testing in tanneries
Level
3
Credits
Purpose
5
This unit standard is for people new to the leather industry or
those wishing to develop their technical skills in leather
manufacture.
People credited with this unit standard are able to demonstrate
knowledge of chemical analyses used on leather and tannery
process liquors; and describe the effects of incorrect chemical
analyses operations.
Classification
Leather Manufacturing > Leather Manufacture Technology
Available grade
Achieved and Merit
Explanatory notes
1
Company quality assurance and quality control documentation may be used in
assessment against this unit standard.
2
Version 3 of this unit standard introduced criteria for merit. Wherever a merit
requirement appears in this unit standard it assumes that the requirements for credit
have been met.
This unit standard is
Outcome 1
expiring
Demonstrate knowledge of chemical
analyses used on leather and tannery process
Outcomes and evidence requirements
liquors.
Evidence requirements
1.1
Analytical procedures, including sampling methodology where applicable, are
described for chemical tests used at specified tannery process stages.
Credit
Merit
1.2
three tests for one of hide, skin, or leather; and three for liquors.
plus one for hide, skin, or leather; and one for liquors.
The apparatus and equipment required to carry out the tests outlined as
required under performance criterion 1.1 are described for each analytical
procedure.
Primary Industry Training Organisation
SSB Code 101558
 New Zealand Qualifications Authority 2016
NZQA Expiring unit standard
8391 version 9
Page 2 of 3
Outcome 2
Describe the effects of incorrect chemical analyses on tannery processes and products.
Evidence requirements
2.1
Potential consequences of incorrect chemical analyses to the tannery and
customer are described in terms of specific tests applied at specified process
stages.
four, which may include but are not limited to any of – off
specification product, leather wastage, reworking, effluent
loadings, customer dissatisfaction, loss of orders, added cost.
plus one other.
Credit
Merit
Replacement information
This unit standard has been replaced by unit standard
27893.
This unit standard is expiring. Assessment against the standard must take place by
the last date for assessment set out below.
Status information and last date for assessment for superseded versions
Process
Version Date
Last Date for Assessment
Registration
1
24 September 1996
31 December 2015
Revision
2
16 September 1997
31 December 2015
Review
3
27 April 2000
31 December 2015
Revision
This
unit standard
is
5
14 October 2004
31 December 2015
6
14 December 2007
31 December 2015
expiring
7
21 February 2013
31 December 2015
4
20 February 2002
31 December 2015
Rollover
8
20 March 2015
31 December 2017
Rollover
9
17 September 2015
31 December 2018
Revision
Review
Review
Consent and Moderation Requirements (CMR) reference
0185
This CMR can be accessed at http://www.nzqa.govt.nz/framework/search/index.do.
Please note
Providers must be granted consent to assess against standards (accredited) by NZQA,
before they can report credits from assessment against unit standards or deliver courses
of study leading to that assessment.
Industry Training Organisations must be granted consent to assess against standards by
NZQA before they can register credits from assessment against unit standards.
Primary Industry Training Organisation
SSB Code 101558
 New Zealand Qualifications Authority 2016
NZQA Expiring unit standard
8391 version 9
Page 3 of 3
Providers and Industry Training Organisations, which have been granted consent and
which are assessing against unit standards must engage with the moderation system that
applies to those standards.
Requirements for consent to assess and an outline of the moderation system that applies
to this standard are outlined in the Consent and Moderation Requirements (CMR). The
CMR also includes useful information about special requirements for organisations wishing
to develop education and training programmes, such as minimum qualifications for tutors
and assessors, and special resource requirements.
This unit standard is
expiring
Primary Industry Training Organisation
SSB Code 101558
 New Zealand Qualifications Authority 2016