Assessor Resource

AHCSDT304
Perform a seed purity analysis

Assessment tool

Version 1.0
Issue Date: April 2024


This unit of competency describes the skills and knowledge required to test the analytical purity of seed in a working sample to infer the composition of a seed lot. It applies to seed analysts working within enterprise requirements and procedures.

It applies to individuals who take responsibility for their own work and for the quality of the work of others. They use discretion and judgement in the selection, allocation and use of available resources. All work is carried out to comply with workplace procedures.

No occupational licensing, legislative or certification requirements are known to apply to this unit at the time of publication.

You may want to include more information here about the target group and the purpose of the assessments (eg formative, summative, recognition)



Evidence Required

List the assessment methods to be used and the context and resources required for assessment. Copy and paste the relevant sections from the evidence guide below and then re-write these in plain English.

Element

Performance criteria

Elements describe the essential outcomes.

Performance criteria describe the performance needed to demonstrate achievement of the element.

1. Prepare for a purity test

1.1 Identify samples, test methods and equipment to perform the test

1.2 Clean and calibrate equipment and working spaces

1.3 Prepare a working sample using mixing and dividing processes

1.4 Check and record sample details on worksheets and sample packets

2. Assess working samples

2.1 Separate the working sample into its component parts using appropriate equipment

2.2 Separate pure seed using visual characteristics, mechanical or pressure aids appropriate to the type of seed

2.3 Handle seeds carefully so as not impair their capacity for germination

2.4 Weigh separated component parts and matter to the number of decimal places required by enterprise guidelines

2.5 Identify contaminant seeds

3. Process and interpret data

3.1 Add and compare weights of all components’ parts with original working sample weight

3.2 Undertake a retest if required

3.3 Refer to a supervisor seeds that cannot be identified

3.4 Calculate the percentage weight of various component parts to one decimal place

3.5 Add percentages of all fractions together and round to 100%

3.6 Report results of test

The candidate must be assessed on their ability to integrate and apply the performance requirements of this unit in a workplace setting. Performance must be demonstrated consistently over time and in a suitable range of contexts.

The candidate must provide evidence that they can:

prepare a working sample

report percentages of component parts

round off calculations to enterprise requirements

separate a working sample into component parts

test the analytical purity of seed to infer the composition of a seed lot

The candidate must demonstrate knowledge of:

enterprise and/or legal traceability requirements

enterprise standard operating procedures (SOPs)

materials and apparatus used in seed purity tests

relevant work health, safety and environment requirements

seed biology

seed identification

the role of the International Seed Testing Association (ISTA) and the ISTA Rules for Seed Testing

Assessors must satisfy current standards for RTOs.


Submission Requirements

List each assessment task's title, type (eg project, observation/demonstration, essay, assingnment, checklist) and due date here

Assessment task 1: [title]      Due date:

(add new lines for each of the assessment tasks)


Assessment Tasks

Copy and paste from the following data to produce each assessment task. Write these in plain English and spell out how, when and where the task is to be carried out, under what conditions, and what resources are needed. Include guidelines about how well the candidate has to perform a task for it to be judged satisfactory.

Element

Performance criteria

Elements describe the essential outcomes.

Performance criteria describe the performance needed to demonstrate achievement of the element.

1. Prepare for a purity test

1.1 Identify samples, test methods and equipment to perform the test

1.2 Clean and calibrate equipment and working spaces

1.3 Prepare a working sample using mixing and dividing processes

1.4 Check and record sample details on worksheets and sample packets

2. Assess working samples

2.1 Separate the working sample into its component parts using appropriate equipment

2.2 Separate pure seed using visual characteristics, mechanical or pressure aids appropriate to the type of seed

2.3 Handle seeds carefully so as not impair their capacity for germination

2.4 Weigh separated component parts and matter to the number of decimal places required by enterprise guidelines

2.5 Identify contaminant seeds

3. Process and interpret data

3.1 Add and compare weights of all components’ parts with original working sample weight

3.2 Undertake a retest if required

3.3 Refer to a supervisor seeds that cannot be identified

3.4 Calculate the percentage weight of various component parts to one decimal place

3.5 Add percentages of all fractions together and round to 100%

3.6 Report results of test

The candidate must be assessed on their ability to integrate and apply the performance requirements of this unit in a workplace setting. Performance must be demonstrated consistently over time and in a suitable range of contexts.

The candidate must provide evidence that they can:

prepare a working sample

report percentages of component parts

round off calculations to enterprise requirements

separate a working sample into component parts

test the analytical purity of seed to infer the composition of a seed lot

The candidate must demonstrate knowledge of:

enterprise and/or legal traceability requirements

enterprise standard operating procedures (SOPs)

materials and apparatus used in seed purity tests

relevant work health, safety and environment requirements

seed biology

seed identification

the role of the International Seed Testing Association (ISTA) and the ISTA Rules for Seed Testing

Assessors must satisfy current standards for RTOs.

Copy and paste from the following performance criteria to create an observation checklist for each task. When you have finished writing your assessment tool every one of these must have been addressed, preferably several times in a variety of contexts. To ensure this occurs download the assessment matrix for the unit; enter each assessment task as a column header and place check marks against each performance criteria that task addresses.

Observation Checklist

Tasks to be observed according to workplace/college/TAFE policy and procedures, relevant legislation and Codes of Practice Yes No Comments/feedback
Identify samples, test methods and equipment to perform the test 
Clean and calibrate equipment and working spaces 
Prepare a working sample using mixing and dividing processes 
Check and record sample details on worksheets and sample packets 
Separate the working sample into its component parts using appropriate equipment 
Separate pure seed using visual characteristics, mechanical or pressure aids appropriate to the type of seed 
Handle seeds carefully so as not impair their capacity for germination 
Weigh separated component parts and matter to the number of decimal places required by enterprise guidelines 
Identify contaminant seeds 
Add and compare weights of all components’ parts with original working sample weight 
Undertake a retest if required 
Refer to a supervisor seeds that cannot be identified 
Calculate the percentage weight of various component parts to one decimal place 
Add percentages of all fractions together and round to 100% 
Report results of test 

Forms

Assessment Cover Sheet

AHCSDT304 - Perform a seed purity analysis
Assessment task 1: [title]

Student name:

Student ID:

I declare that the assessment tasks submitted for this unit are my own work.

Student signature:

Result: Competent Not yet competent

Feedback to student

 

 

 

 

 

 

 

 

Assessor name:

Signature:

Date:


Assessment Record Sheet

AHCSDT304 - Perform a seed purity analysis

Student name:

Student ID:

Assessment task 1: [title] Result: Competent Not yet competent

(add lines for each task)

Feedback to student:

 

 

 

 

 

 

 

 

Overall assessment result: Competent Not yet competent

Assessor name:

Signature:

Date:

Student signature:

Date: