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Title / Demonstrate knowledge of crushing and screening plant for extractive industries
Level / 3 / Credits / 3
Purpose / People credited with this unit standard are able to demonstrate knowledge of crushing plant and screening plant for extractive industries.
Classification / Extractive Industries > Extractive Industries Management
Available grade / Achieved
Guidance Information
1Performance of the outcomes of this unit standard must comply with the following:
Health and Safety in Employment Act, 1992;
Health and Safety in Employment Regulations 1995;
Health and Safety in Employment (Mining Operations and Quarrying Operations) Regulations 2013;
approved codes of practice issued pursuant to the HSE Act;
Guidelines for Management of Hazards Associated with Crushing and Screening Plant, available at
2Any new, amended or replacement Acts, regulations, standards, codes of practice, guidelines, or authority requirements or conditions affecting this unit standard will take precedence for assessment purposes, pending review of this unit standard.
Outcomes and performance criteria
Outcome 1
Demonstrate knowledge of crushing plant for extractive industries.
Performance criteria
1.1The attributes of crushers are described in relation to the output products. The relationships and positioning of crushers is described for each product.
Rangeevidence is required for one type of crusher from each – primary, secondary, tertiary.
1.2Variations in the attributes and relationship of crushers are described in terms of the output products.
Outcome 2
Demonstrate knowledge of screening plant for extractive industries.
Performance criteria
2.1The attributes of screens are described in relation to the output products.
Rangeevidence is required for one type of screen from each of – primary, secondary, tertiary.
2.2The relationships and positioning of screens are described in relation to site-specific products.
Replacement information / This unit standard was replaced by unit standard 31092.This unit standard and unit standard 25879 replaced unit standard 21157.
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Status information and last date for assessment for superseded versions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 AssessmentRegistration / 1 / 21 August 2009 / 31 December 2017
Review / 2 / 18 June 2015 / 31 December 2019
Review / 3 / 1 March / 31 December 2019
Consent and Moderation Requirements (CMR) reference / 0114
This CMR can be accessed at
MITO New Zealand IncorporatedSSB Code 101542 / New Zealand Qualifications Authority 2018