NZQA Expiring unit standard
22001 version 2
Page 1 of 3
Title
Prepare chemical solutions in a dairy industry laboratory
Level
4
Credits
3
Purpose
People credited with this unit standard are able to, in the dairy
industry: prepare, standardise and use solutions; and monitor
the quality of laboratory solutions.
Classification
Dairy Manufacturing > Dairy Laboratory Methodology
Available grade
Achieved
Entry information
Critical health and
safety prerequisites
Open.
Explanatory notes
1
Performance must be demonstrated and assessed in accordance with organisational
requirements.
2
Organisational requirements refers to instructions to staff on policy and procedures
(including the application of legislation to work site situations) which are formally
documented or generally accepted at the work site. This may include legislation;
industry standards and methods; national and international standards and methods;
standards and methods published in internationally recognised reputable texts;
customer/organisation developed methods, standard operating procedures,
specifications, manuals, and manufacturer’s information.
3
The legislation and standards relevant to this unit standard may include but are not
limited to – AS/NZS 2243.1 (2005) Safety in Laboratories – Planning and operational
aspects; Hazardous Substances and New Organisms Act 1996, Health and Safety in
Employment Act 1992, Fire Safety and Evacuation of Buildings Regulations 1992;
Fire Service Act 1975; Building Act 2004, Radiation Protection Act 1965, Resource
Management Act 1991, codes of practice, and regulations.
4
Sources which may be referred to include but are not limited to: Codes of Practice
and Guidelines approved by ERMA and recommended as a means of compliance
with the Hazardous Substances and New Organisms Act 1996; chemical supply
company data bases and Material Safety Data Sheets (MSDS); publications of the
National Poisons Centre (University of Otago, Dunedin), Laboratory Safety
publication at http://www.acc.co.nz.
Primary Industry Training Organisation
SSB Code 101558
 New Zealand Qualifications Authority 2016
NZQA Expiring unit standard
5
22001 version 2
Page 2 of 3
Solutions may include but are not limited to – strong/weak acids and bases, oxidising
and reducing agents, solutions used for titrations, stains for cells and tissues,
enzymes and buffers. Evidence is required for the preparation of a minimum of three
solutions.
Outcomes and evidence requirements
Outcome 1
Prepare a solution.
Evidence requirements
1.1
Appropriate procedure for solution preparation is selected.
1.2
Equipment, materials, and solvent of specified purity are selected correctly.
1.3
Appropriate quantities of reagents for solution preparation are calculated and
measured.
1.4
Specified dilutions are prepared.
1.5
Solutions are prepared to achieve homogenous mix of specified concentration.
1.6
Solutions are labelled and stored to maintain identity and stability.
Outcome 2
Standardise and use volumetric solutions.
Evidence requirements
2.1
Serial dilutions are performed.
2.2
Solution is standardised using appropriate procedure.
2.3
Solutions are labelled and stored to maintain identity and stability.
2.4
Concentration of unknown solutions is determined using standard volumetric
solutions.
2.5
Concentration of solutions is calculated and recorded.
Outcome 3
Monitor the quality of laboratory solutions.
Evidence requirements
3.1
Solutions are checked for visual deterioration and expiry date.
3.2
Dated or deteriorated solutions are re-standardised or disposed of.
Primary Industry Training Organisation
SSB Code 101558
 New Zealand Qualifications Authority 2016
NZQA Expiring unit standard
22001 version 2
Page 3 of 3
Replacement information
This unit standard has been replaced by unit standard
29127.
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
16 December 2005
31 December 2018
Review
2
17 September 2015
31 December 2018
Consent and Moderation Requirements (CMR) reference
0022
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.
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.
Primary Industry Training Organisation
SSB Code 101558
 New Zealand Qualifications Authority 2016