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Evidence Guide: NWP364B - Perform laboratory testing

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

 

NWP364B - Perform laboratory testing

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

Label, register and store samples for testing.

  1. Label laboratory samples, ensuring that the required information is transcribed accurately and legibly.
  2. Register samples in a laboratory record system according to organisational requirements.
  3. Record sample testing requirements.
  4. Preserve the integrity of samples as required and eliminate the possibility of cross-contamination.
Label laboratory samples, ensuring that the required information is transcribed accurately and legibly.

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Register samples in a laboratory record system according to organisational requirements.

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Record sample testing requirements.

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Preserve the integrity of samples as required and eliminate the possibility of cross-contamination.

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Prepare samples.

  1. Identify samples to be tested and appropriate test method, equipment and safety requirements according to organisational and statutory requirements.
  2. Compare sample description with the specification, record results and report discrepancies.
  3. Prepare samples according to appropriate standard operating procedures.
Identify samples to be tested and appropriate test method, equipment and safety requirements according to organisational and statutory requirements.

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Compare sample description with the specification, record results and report discrepancies.

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Prepare samples according to appropriate standard operating procedures.

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Check equipment before use.

  1. Set up test equipment and/or reagents in accordance with the specified test method.
  2. Conduct pre-use and safety checks in accordance with organisational procedures and manufacturer's instructions.
  3. Identify and report faulty or unsafe equipment to appropriate personnel.
  4. Check the calibration status of equipment and conduct calibration or report calibration requirements to appropriate personnel.
Set up test equipment and/or reagents in accordance with the specified test method.

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Conduct pre-use and safety checks in accordance with organisational procedures and manufacturer's instructions.

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Identify and report faulty or unsafe equipment to appropriate personnel.

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Check the calibration status of equipment and conduct calibration or report calibration requirements to appropriate personnel.

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Perform tests on samples.

  1. Perform the sequence of tests according to standard operating procedures.
  2. Identify, prepare and weigh or measure sample and standards to be tested.
  3. Conduct test methods according to organisation procedures.
  4. Record results according to organisation procedures.
  5. Perform calculations as required.
  6. Identify and report 'Out of specification' or atypical results promptly to appropriate personnel.
  7. Shut down equipment in accordance with standard operating procedures.
Perform the sequence of tests according to standard operating procedures.

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Identify, prepare and weigh or measure sample and standards to be tested.

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Conduct test methods according to organisation procedures.

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Record results according to organisation procedures.

Completed
Date:

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Perform calculations as required.

Completed
Date:

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Identify and report 'Out of specification' or atypical results promptly to appropriate personnel.

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Shut down equipment in accordance with standard operating procedures.

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Maintain a safe work environment.

  1. Use established safe work practices and safety equipment to ensure personal safety and that of other laboratory personnel.
  2. Store unused reagents as required by relevant regulations and codes.
  3. Dispose of wastes according to organisational and statutory requirements.
  4. Clean, maintain and store test equipment correctly.
Use established safe work practices and safety equipment to ensure personal safety and that of other laboratory personnel.

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Store unused reagents as required by relevant regulations and codes.

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Dispose of wastes according to organisational and statutory requirements.

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Clean, maintain and store test equipment correctly.

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Assessed

Teacher: ___________________________________ Date: _________

Signature: ________________________________________________

Comments:

 

 

 

 

 

 

 

 

Instructions to Assessors

Evidence Guide

The evidence guide provides advice on assessment and must be read in conjunction with the Performance Criteria, Required Skills and Knowledge, the Range Statement and the Assessment Guidelines for the Training Package.

Critical aspects for assessment and evidence required to demonstrate competency in this unit

The candidateshould demonstrate the ability to perform laboratory tests and procedures including:

labelling samples for testing

registering samples and storing correctly

preparing samples for testing according to the specified test method

selecting the correct equipment and checking equipment performance

conducting tests according to specifications

maintaining a safe work environment.

Context of and specific resources for assessment

Access to the workplace and resources including:

documentation that should normally be available in a water industry organisation

relevant codes, standards, and government regulations.

Where applicable, physical resources should include equipment modified for people with disabilities.

Access must be provided to appropriate learning and/or assessment support when required.

Assessment processes and techniques must be culturally appropriate, and appropriate to the language and literacy capacity of the candidate and the work being performed.

Validity and sufficiency of evidence requires that:

competency will need to be demonstrated over a period of time reflecting the scope of the role and the practical requirements of the workplace

where the assessment is part of a structured learning experience the evidence collected must relate to a number of performances assessed at different points in time and separated by further learning and practice

a decision of competence only taken at the point when the assessor has complete confidence in the person's competence over time and in various contexts

all assessment that is part of a structured learning experience must include a combination of direct, indirect and supplementary evidence

where assessment is for the purpose of recognition (RCC/RPL), the evidence provided will need to be authenticated and show that it represents competency demonstrated over a period of time

assessment can be through simulated project-based activity and must include evidence relating to each of the elements in this unit.

In all cases where practical assessment is used it will be combined with targeted questioning to assess the underpinning knowledge. Questioning will be undertaken in a manner appropriate to the skill levels of the operator, any cultural issues that may affect responses to the questions, and reflecting the requirements of the competency and the work being performed.

Required Skills and Knowledge

This describes the essential skills and knowledge and their level, required for this unit.

Required skills:

produce laboratory reports and logs

use laboratory safety equipment and personal protective equipment

interpret laboratory test methods

interpret policies, procedures and standards

interpret and record test results, including calculation of results from test data where required

communicate with employees and/or customers

use communication equipment

give and receive instructions

use instrumental and volumetric laboratory equipment

sub-sample and test products.

Required knowledge:

purpose of tests

principles of the standard method

calibration and/or pre-use equipment checks and their basis

relevant standards and specifications and their interpretation

source of uncertainty in measurements and methods for control

importance and appropriate use of certified reference materials

procedures for recognition of unexpected or unusual results and likely causes

occupational health and safety procedures for sample and testing

material safety data sheets

jar testing

spectrophotometric analysis

potentiometric analysis such as redox, ion selective electrodes

colorimetric comparators

titrations

volumetric glassware and dilutions

gravimetric analysis.

Range Statement

The range statement relates to the unit of competency as a whole. It allows for different work environments and situations that may affect performance. Bold italicised wording, if used in the Performance Criteria, is detailed below. Add any essential operating conditions that may be present with training and assessment depending on the work situation, needs if the candidate, accessibility of the item, and local industry and regional contexts.

Laboratory record systems may include:

laboratory record sheets

computer database

laboratory information management systems.

Preservation techniques may include:

refrigeration

freezing

chemical addition

storage in the dark.

Organisational and statutory requirements may include:

Australian and International Standards such as AS 2830 Good Laboratory Practice

codes of practice

standard operating procedures

equipment manuals

equipment start up, operation and shutdown procedures

calibration and maintenance schedules

quality manuals

enterprise recording and reporting procedures

production and laboratory schedules

material safety data sheets

material, production and product specifications

sections of the occupational health and safety legislation

organisational safety rules and procedures

relevant state and federal legislation.

Samples preparation may include:

sub-sampling

dilution

digestion

filtration.

Pre-use and safety checks may include:

checklist of required equipment and reagents

instrument check out procedures

electrical safety test and tag currency

calibration status

battery condition

use-by date for reagents.

Test methods include:

gravimetric analysis, such as:

suspended solids

total solids

spectrophotometric analysis, such as:

iron

aluminium

manganese

volumetric analysis and dilutions, such as:

alkalinity

hardness

test methods may also include:

potentiometric analysis, such as:

ion selective electrodes

redox potential

colorimetric analysis, such as:

pH

chlorine residual

microscope techniques

jar testing.

Calculations may include:

total suspended solids

total solids

alkalinity

hardness

dilution ratios

concentration of standard solutions.

Safety equipment may include:

fume hood

safety shield

safety shower and eye wash fountain

personal protective equipment such as:

safety glasses

face shields

gloves

dust masks.