NZQA Expiring unit standard
8406 version 9
Page 1 of 3
Title
Demonstrate knowledge of leather drying methods and conditioning
Level
3
Credits
Purpose
5
This unit standard is for people with technical responsibilities or
those wishing to further develop their technical skills in leather
manufacture.
People credited with this unit standard are able to demonstrate
knowledge of: leather drying; leather drying methods; and
leather conditioning.
Classification
Leather Manufacturing > Leather Manufacture Technology
Available grade
Achieved and Merit
Explanatory notes
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.
Outcomes and evidence requirements
Outcome 1
Demonstrate knowledge of leather drying.
This unit standard is
Principles of leather drying are described in terms of the nature of the water
expiring
contained within the leather
and the phases of water removal.
Evidence requirements
1.1
Credit
Merit
1.2
three of the following – free water, combined water, constant
drying rate, falling rate, equilibration.
plus one other.
Principal factors governing the removal of water from wet leather are described
in relation tannery processes.
Credit
Merit
three of the following – mechanical dewatering, air circulation, air
velocity, temperature, humidity, time.
plus one other.
New Zealand Industry Training Organisation
SSB Code 101541
 New Zealand Qualifications Authority 2016
NZQA Expiring unit standard
8406 version 9
Page 2 of 3
Outcome 2
Demonstrate knowledge of leather drying methods.
Evidence requirements
2.1
Leather drying methods are described in terms of the equipment used and its
operation.
Credit
Merit
2.2
Drying methods for different leather types are described according to suitability.
Credit
Merit
2.3
three, which may include but are not limited to any of – paste,
toggle, vacuum, radiation, hang, microwave.
plus two others.
three of the following – clothing, upper, upholstery, woolskins,
vegetable leather.
plus one other.
Leather drying methods are described in terms of advantages and
disadvantages.
Credit
Merit
two of the following – paste, toggle, vacuum, hang.
plus one other.
Outcome 3
Demonstrate knowledge of leather conditioning.
Evidence requirements
3.1
3.2
This unit standard is
Methods of leather conditioning are described in terms of common tannery
practices.
expiring
Reasons for conditioning leather after drying are described in terms of product
requirements.
Credit
Merit
two of the following – sawdusting, water spray, high frequency,
drum conditioning.
plus one other.
Replacement information
This unit standard has been replaced by unit standard
27896.
This unit standard is expiring. Assessment against the standard must take place by
the last date for assessment set out below.
New Zealand Industry Training Organisation
SSB Code 101541
 New Zealand Qualifications Authority 2016
NZQA Expiring unit standard
8406 version 9
Page 3 of 3
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
23 March 1999
31 December 2015
Review
3
27 April 2000
31 December 2015
Revision
4
20 February 2002
31 December 2015
Revision
5
14 October 2004
31 December 2015
Review
6
14 December 2007
31 December 2015
Review
7
21 February 2013
31 December 2015
Rollover
8
20 March 2015
31 December 2017
Rollover
9
17 September 2015
31 December 2018
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.
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.
This unit standard is
expiring
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.
New Zealand Industry Training Organisation
SSB Code 101541
 New Zealand Qualifications Authority 2016