NZQA Expiring unit standard
20768 version 3
Page 1 of 3
Title
Explain adhesive use in wood product manufacturing
Level
3
Credits
10
Purpose
People credited with this unit standard are able to: define
properties of adhesives used in wood product manufacturing;
define storage and handling requirements of adhesives used in
wood product manufacturing; and explain adhesive failures in
wood product manufacturing.
Classification
Solid Wood Manufacturing > Wood Product Manufacturing
Skills
Available grade
Achieved
Entry information
Recommended: Unit 4548, Laminate straight timber for wood
product manufacturing; or Unit 4546, Feed and tail out fingerjointer; or demonstrate equivalent knowledge and skills.
Recommended skills
and knowledge
Explanatory notes
Definition
Worksite documentation refers to instructions to staff on policy and procedures (including
the application of legislation to worksite situations), which are formally documented, and
are available for reference at the worksite. Examples are standard operating procedures,
specifications, manuals, and manufacturer's information.
This unit standard is
expiring
Outcomes and evidence requirements
Outcome 1
Define properties of adhesives used in wood product manufacturing.
Evidence requirements
1.1
Definition identifies categories of adhesives used in wood product
manufacturing and aligns them with products.
Range
Competenz
SSB Code 101571
categories may include but are not limited to – water resistant,
moisture resistant, interior.
 New Zealand Qualifications Authority 2016
NZQA Expiring unit standard
1.2
20768 version 3
Page 2 of 3
Definition identifies the chemical structure of key adhesives and describes how
this impacts on the adhesives’ effectiveness and limitations of use.
Range
key adhesives may include but are not limited to – formaldehyde,
polyvinyl acetate, urethane.
1.3
Definition identifies the properties required of bonds for products in wood
product manufacturing and describes how these are achieved.
1.4
Definition identifies the factors that influence the effectiveness of adhesives and
describes how these factors are controlled.
Outcome 2
Define storage and handling requirements of adhesives used in wood product
manufacturing.
Evidence requirements
2.1
Definition describes the identification, classification, signage and handling
requirements of adhesive chemicals used in wood product manufacturing.
2.2
Definition describes the storage and disposal requirements, for various
categories of adhesive used in wood product manufacturing, and identifies how
these requirements are met for specific adhesives on a specified wood product
manufacturing site.
Range
categories may include but are not limited to – water resistant,
moisture resistant, interior.
2.3
Definition includes procedures and protective equipment required for the safe
handling of adhesive chemicals in wood product manufacturing.
2.4
Definition identifies emergency procedures and treatment for adhesive spillage
on a wood product manufacturing site.
Outcome 3
This unit standard is
expiring
Explain adhesive failures in wood product manufacturing.
Evidence requirements
3.1
Explanation identifies six causes for adhesive failure in wood product
manufacturing.
3.2
Explanation describes the physical characteristics that indicate the likely causes
of adhesive failure in wood products.
3.3
Explanation describes processes for determining adhesive failure in accordance
with worksite documentation.
Competenz
SSB Code 101571
 New Zealand Qualifications Authority 2016
NZQA Expiring unit standard
3.4
20768 version 3
Page 3 of 3
Explanation includes a report on samples of given products with adhesive
failures where the causes of failure are determined in accordance with worksite
documentation.
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
18 December 2006
31 December 2015
Review
2
18 April 2013
31 December 2015
Rollover
3
16 April 2015
31 December 2018
Consent and Moderation Requirements (CMR) reference
0173
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.
Competenz
SSB Code 101571
 New Zealand Qualifications Authority 2016