NTISthis.com

Evidence Guide: AHCSDT304 - Perform a seed purity analysis

Student: __________________________________________________

Signature: _________________________________________________

Tips for gathering evidence to demonstrate your skills

The important thing to remember when gathering evidence is that the more evidence the better - that is, the more evidence you gather to demonstrate your skills, the more confident an assessor can be that you have learned the skills not just at one point in time, but are continuing to apply and develop those skills (as opposed to just learning for the test!). Furthermore, one piece of evidence that you collect will not usualy demonstrate all the required criteria for a unit of competency, whereas multiple overlapping pieces of evidence will usually do the trick!

From the Wiki University

 

AHCSDT304 - Perform a seed purity analysis

What evidence can you provide to prove your understanding of each of the following citeria?

Prepare for a purity test

  1. Identify samples, test methods and equipment to perform the test
  2. Clean and calibrate equipment and working spaces
  3. Prepare a working sample using mixing and dividing processes
  4. Check and record sample details on worksheets and sample packets
Identify samples, test methods and equipment to perform the test

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Clean and calibrate equipment and working spaces

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Prepare a working sample using mixing and dividing processes

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Check and record sample details on worksheets and sample packets

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Assess working samples

  1. Separate the working sample into its component parts using appropriate equipment
  2. Separate pure seed using visual characteristics, mechanical or pressure aids appropriate to the type of seed
  3. Handle seeds carefully so as not impair their capacity for germination
  4. Weigh separated component parts and matter to the number of decimal places required by enterprise guidelines
  5. Identify contaminant seeds
Separate the working sample into its component parts using appropriate equipment

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

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

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Handle seeds carefully so as not impair their capacity for germination

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

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

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Identify contaminant seeds

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Process and interpret data

  1. Add and compare weights of all components’ parts with original working sample weight
  2. Undertake a retest if required
  3. Refer to a supervisor seeds that cannot be identified
  4. Calculate the percentage weight of various component parts to one decimal place
  5. Add percentages of all fractions together and round to 100%
  6. Report results of test
Add and compare weights of all components’ parts with original working sample weight

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Undertake a retest if required

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Refer to a supervisor seeds that cannot be identified

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

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

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Add percentages of all fractions together and round to 100%

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Report results of test

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Assessed

Teacher: ___________________________________ Date: _________

Signature: ________________________________________________

Comments:

 

 

 

 

 

 

 

 

Instructions to Assessors

Evidence Guide

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

Required Skills and Knowledge

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

Range Statement