NZQA registered unit standard
20450 version 2
Page 1 of 5
Title
Describe safe heating, blending, modification, and transfer of bulk
bituminous liquids
Level
4
Credits
15
Purpose
People credited with this unit standard are able to describe:
bitumen additives and modifiers, their addition and blending,
and heating and storage methods for bulk bituminous liquids
containing them; safety precautions relating to heating,
blending, pumping, and transfer of bulk bituminous liquids;
safety precautions for maintenance of bitumen tanks and pipe
work; and placarding and documentation requirements for
bitumen storage facilities.
Classification
Pavement Surfacing > Bitumen Surfacing
Available grade
Achieved
Entry information
Critical health and
safety prerequisites
Unit 20449, Demonstrate knowledge of the dangers of handling
bituminous materials and the need for safety, or demonstrate
equivalent knowledge and skills.
Explanatory notes
1
The following legislation and requirements apply to this unit standard, and must be
complied with:
Hazardous Substances (Disposal) Regulations 2001;
Hazardous Substances (Identification) Regulations 2001;
Land Transport Rule: Dangerous Goods 2005 (Rule 45001/1) amendment 2010,
45001/2;
Hazardous Substances (Dangerous Goods and Scheduled Toxic Substances)
Transfer Notice 2004 (As Amended) available at http://archive.ermanz.govt.nz;
The Safe Handling of Bituminous Materials Used in Roading – Code of Practice RNZ
9904:2006 RNZ 9904:2006, Roading New Zealand (the Code of Practice RNZ
9904:2006), available at http://www.roadingnz.org.nz;
Hot Work on Tanks and Drums, Occupational Safety and Health Service, available at
http://www.osh.govt.nz/;
The Bitumen Safety Handbook, Roading New Zealand, available at
http://www.roadingnz.org.nz;
Product supplier’s handling recommendations;
Chipsealing in New Zealand, New Zealand Transport Agency, available at
http://www.nzta.govt.nz/resources/chipsealing-new-zealand-manual/.
Infrastructure ITO
SSB Code 101816
 New Zealand Qualifications Authority 2016
NZQA registered unit standard
20450 version 2
Page 2 of 5
Any legislation or other requirements superseding any of the above will apply,
pending the review of this unit standard.
2
This unit standard covers the knowledge of safety associated with heating, blending,
and modifying bituminous liquids and maintaining bitumen equipment for both fixed
and mobile plant. The industry requires that people undertake further training
relating to application of this knowledge. Such skills are covered in other unit
standards in the Pavement Surfacing subfield.
3
Assessment against this unit standard must be based on evidence from a workplace
context.
4
Definitions
Bituminous liquids means hot straight bitumen, hot cutback bitumen, hot polymermodified bitumen, and emulsified bitumen.
Company procedures refers to all documented policies, procedures and
methodologies of the candidate’s employer at the time of training including but not
limited to those relating to health, safety, environment, quality and operations.
SDS refers to Safety Data Sheets.
Transfer means move bituminous liquid between stationary and/or mobile tanks.
Outcomes and evidence requirements
Outcome 1
Describe bitumen additives and modifiers, their addition and blending, and heating and
storage methods for bulk bituminous liquids containing them.
Evidence requirements
1.1
Additives are defined and their uses are described in accordance with
Chipsealing in New Zealand.
Range
includes but is not limited to – cutters, fluxes, adhesion agents,
antifoaming agents.
1.2
Methods of addition and blending of additives to bulk bituminous liquids are
described in accordance with the Code of Practice RNZ 9904:2006 RNZ
9904:2006 and company procedures.
1.3
Polymer and natural rubber modifiers are defined and described in accordance
with Chipsealing in New Zealand, The Bitumen Safety Handbook, company
procedures, SDS, and product supplier’s handling recommendations.
Range
1.4
types, uses.
Methods of addition and blending of modifiers to bulk bituminous liquids are
described in accordance with company procedures and product supplier’s
handling recommendations.
Range
Infrastructure ITO
SSB Code 101816
modifiers – polymer, natural rubber.
 New Zealand Qualifications Authority 2016
NZQA registered unit standard
1.5
20450 version 2
Page 3 of 5
Heating and storage of bulk bituminous liquids is described in accordance with
The Bitumen Safety Handbook and product supplier’s handling
recommendations.
Range
liquids include – concentrations of additive, types of additive,
polymer modifiers, natural rubber;
storage includes – short term, long term, at elevated temperature.
Outcome 2
Describe safety precautions relating to heating, blending, pumping, and transfer of bulk
bituminous liquids.
Evidence requirements
2.1
Precautions for heating, blending, pumping, and transferring are described in
accordance with The Bitumen Safety Handbook, company procedures, and
SDS.
Range
2.2
Precautions for hoses and couplings are described in accordance with The
Bitumen Safety Handbook and company procedures.
Range
2.3
handling, storage, inspection, certification.
Precautions for clearing plugged valves, hoses, or pipes are described in
accordance with The Bitumen Safety Handbook and company procedures.
Range
2.4
heating – tanks, pipelines, pumps, valves.
empty tank, loaded tank.
Precautions and handling procedures for bulk bituminous liquids contaminated
with water are described in accordance with The Bitumen Safety Handbook and
company procedures.
Outcome 3
Describe safety precautions for maintenance of bitumen tanks and pipe work.
Evidence requirements
3.1
Hazards of tank and pipework maintenance are described in accordance with
the Code of Practice RNZ 9904:2006.
3.2
Work permit requirements are described in accordance with the Code of
Practice RNZ 9904:2006 RNZ 9904:2006 and company procedures.
Range
3.3
confined space entry, tank inspection, hot work, cold work.
Safety precautions for entering bitumen tanks are described in accordance with
the Code of Practice RNZ 9904:2006 and company procedures.
Infrastructure ITO
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 New Zealand Qualifications Authority 2016
NZQA registered unit standard
20450 version 2
Page 4 of 5
3.4
The responsibilities of the person stationed outside the tank during maintenance
work are described in accordance with the Code of Practice RNZ 9904:2006.
3.5
Safety precautions for freeing pipes and equipment of flammable liquids and
vapours are described in accordance with the Code of Practice RNZ 9904:2006
and company procedures.
3.6
Work permit requirements for hot work and cold work are described in
accordance with company procedures and Hot Work on Tanks and Drums.
3.7
Safety precautions to be taken for other maintenance work are described in
accordance with the Code of Practice RNZ 9904:2006 and company
procedures.
Outcome 4
Describe placarding and documentation requirements for bitumen storage facilities.
Evidence requirements
4.1
Documentation requirements for hazardous substances used in the pavement
surfacing industry are described in accordance with Regulations, Rule 45001/1
and The Transfer Notice.
4.2
Placarding requirements for stationary storage facilities are described in
accordance with Regulations and The Transfer Notice.
Range
cutback bitumen, elevated temperature binders.
Planned review date
31 December 2016
Status information and last date for assessment for superseded versions
Process
Version Date
Last Date for Assessment
Registration
1
27 October 2005
31 December 2013
Review
2
15 March 2012
N/A
Consent and Moderation Requirements (CMR) reference
0101
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.
Infrastructure ITO
SSB Code 101816
 New Zealand Qualifications Authority 2016
NZQA registered unit standard
20450 version 2
Page 5 of 5
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.
Comments on this unit standard
Please contact Infrastructure ITO askus@infratrain.co.nz if you wish to suggest changes to
the content of this unit standard.
Infrastructure ITO
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 New Zealand Qualifications Authority 2016