FSANZ Food Contact Compressed Air Requirements Guide

By Byron Raal, CAS Founder-Editor · Last updated 24 May 2026 · About the author

FSANZ does not specify an ISO 8573-1 class for compressed air. Standards 3.2.2 and 3.2.3 of the Food Standards Code require all-practicable contamination prevention; the class number is set by the facility's HACCP risk assessment. Industry benchmark per BCAS BPG102-1: Class 1.2.1 for direct product contact, Class 2.4.2 for indirect.

What air quality does compressed air need for food contact?

FSANZ Standard 3.2.2 sets general food hygiene requirements but does not prescribe specific ISO 8573-1:2010 classes for compressed air. Industry guidance (BCAS, BRCGS, SQF) typically aligns direct food-contact compressed air to ISO 8573-1:2010 Class 1.2.1 or 1.2.2: water vapour at Class 2 (-40 deg C PDP), oil at Class 1 or 2 (less than 0.1 mg/m3), particles at Class 1 or 2.

If you run compressed air anywhere near food, you carry a contamination obligation, but FSANZ never hands you a number to hit. Food Standards Australia New Zealand (FSANZ) does not prescribe a specific compressed air purity class. The Food Standards Code creates a general obligation to prevent contamination during processing, and it leaves the specification to you, set through a documented HACCP risk assessment. Having no mandated class to point at is exactly what trips facilities up at audit.

This regulatory gap catches facilities during audits. Without a mandated class number to point to, many processors either over-specify (wasting capital on unnecessary treatment) or under-specify (risking non-conformances and product safety incidents). This guide maps the FSANZ framework directly to ISO 8573-1 compressed air classes, walks through the HACCP risk assessment methodology for compressed air, and covers the state-by-state enforcement landscape. It is written for QA managers, process engineers, plant managers, and food safety auditors working in Australian food and beverage manufacturing.

How FSANZ Creates Compressed Air Obligations for Food Manufacturers

Standards 3.2.2 and 3.2.3: The Legal Baseline

This is the part you are held to at audit, so read it closely. Two standards in the FSANZ Food Standards Code create the legal obligation for compressed air quality in food facilities. Standard 3.2.2 (Food Safety Practices and General Requirements), Division 3, requires food businesses to take all practicable measures to ensure food is protected from contamination during processing, packaging, and transport. Standard 3.2.3 (Food Premises and Equipment) requires that all equipment used in food handling, including pneumatic systems, must be designed, constructed, and maintained so that it does not contaminate food.

Neither standard names compressed air explicitly. The obligation is general: if compressed air contacts food or food-contact surfaces, and that air could introduce contaminants (oil aerosol, moisture, particles, microorganisms), the business must control that hazard. Compressed air is not classified as a “processing aid” under Standard 1.3.3, nor is it a “food-contact material” in the traditional packaging sense. It is treated as a utility whose contamination potential must be managed under the Chapter 3 food safety obligations.

FSANZ Is Risk-Based, Not Prescriptive

That general wording is deliberate, and it puts the specification call on you. The Food Standards Code is performance-based: each food business identifies the hazards in its own process, assesses the risk, and implements controls proportionate to that risk. The rationale is that food manufacturing covers thousands of different processes, from raw grain handling to aseptic dairy filling, and a single mandated air quality class would be either too strict for low-risk applications or too lenient for high-risk ones. For compressed air this means the compressed air system specification must be justified by a site-specific hazard analysis, not by pointing at a class number in the Code.

The pharmaceutical equivalent (the PIC/S Guide to GMP, adopted by the TGA) takes the same risk-based posture for utilities. PIC/S PE 009-17 Annex 1 treats compressed air as a utility whose monitoring, qualification and control plan must be derived from a contamination control strategy specific to the product, not from a regulator-set ISO 8573-1 class floor. Australian food and pharmaceutical frameworks therefore both rest on a documented site-specific risk assessment rather than a prescriptive class table. Specific ISO 8573-1 class numbers used as benchmarks in industry guidance (BCAS BPG102-1 for food and beverage; certification-scheme rulebooks like SQF, BRC and FSSC 22000) are best-practice references the food business chooses against its own hazard analysis, not mandates from either FSANZ or PIC/S.

The Regulatory Gap and What It Means for Your Facility

There is no certificate, licence, or registration for compressed air quality in food manufacturing. You prove compliance with documentation, not a stamp: a HACCP plan that flags compressed air as a hazard at each use point, a risk assessment that sets the required ISO 8573-1 class, maintenance records for every filter and dryer, and periodic air quality test results. State food safety auditors check whether the class you selected suits the risk you identified and whether you can show ongoing control. Miss any of these and it is a finding.

Conducting a Compressed Air HACCP Risk Assessment

Identifying Compressed Air Contact Points

Start where the air meets the process. The first step in a compressed air HACCP assessment is mapping every point in the facility where compressed air is used, then classifying each point by contact type. Walk the production floor with a process flow diagram and categorise every air use point into one of three tiers: direct product contact (air touches the food product itself), indirect contact (air touches food-contact surfaces or packaging), and non-contact (air powers pneumatic equipment with no product exposure). This classification drives the entire downstream specification.

Common direct-contact applications include pneumatic conveying of dry ingredients (flour, sugar, milk powder), product blow-off after washing or filling, aeration or carbonation injection, and air-blown drying of fruits, vegetables, or confectionery. Indirect-contact applications include packaging line actuators that contact film or trays, bottle or container blow-moulding, cap placement, and filling valve operation. Non-contact applications include conveyor belt drives, HVAC damper control, and general workshop pneumatics.

Hazard Analysis: Particles, Moisture, Oil, Microbiological

For each compressed air use point, the HACCP team assesses four contamination categories. Solid particles (rust, pipe scale, atmospheric dust) can physically contaminate product. Moisture promotes microbial growth and causes clumping in dry ingredients. Oil (aerosol, liquid, and vapour from oil-injected compressors or ambient intake) can taint flavour, degrade packaging seals, and present a chemical hazard. Microbiological contamination (bacteria, moulds, yeasts) can enter through unfiltered ambient air intake or grow in condensate within distribution piping.

The severity and likelihood of each hazard depends on the contact type. A direct-contact blow-off nozzle over an open product stream has high severity and high likelihood for all four hazard categories. A pneumatic cylinder powering a conveyor gate in a dry goods warehouse has low severity and low likelihood. The risk matrix output determines whether each use point is a Critical Control Point (CCP), a prerequisite programme (PRP), or requires no specific control beyond standard compressor maintenance.

Assigning ISO 8573-1 Classes by Risk Category

Now you turn that risk picture into a number you can specify and test against. Once the hazard analysis is complete, the HACCP team assigns an ISO 8573-1 class to each use point. ISO 8573-1 uses three separate class numbers covering particles, water (pressure dew point), and total oil content. A complete specification always states all three: for example, Class 1.2.1 means Class 1 particles, Class 2 water (pressure dew point of -40 °C or better), and Class 1 oil (0.01 mg/m³ or less).

Risk Tier	Contact Type	Application Examples	ISO 8573-1 Class	Treatment Required
High risk	Direct product contact	Ingredient conveying, product blow-off, aeration, aseptic filling	1.2.1 (oil-free)	Oil-free compressor + desiccant dryer (-40 °C PDP) + 0.01 µm coalescing filter + activated carbon stage + 0.2 µm hydrophobic sterile membrane filter (terminal bacterial barrier)
High risk	Direct product contact (ambient temperature)	Bottle blow-off after wash, air knife drying	1.4.1 (oil-free)	Oil-free compressor + refrigerated dryer (+3 °C PDP) + 0.01 µm coalescing filter + activated carbon stage + 0.2 µm hydrophobic sterile membrane filter (terminal bacterial barrier)
Medium risk	Indirect contact	Packaging actuation, filling valves, cap placement, labelling	2.4.2	Oil-injected or oil-free + refrigerated dryer + coalescing filtration
Low risk	Non-contact	Conveyor drives, HVAC dampers, general pneumatics	3.4.3 to 4.5.4	Standard filtration + aftercooler

Note on Class 1.4.1. Class 1.4.1 applies only to ambient-temperature direct-contact applications where Class 4 water content (+3 °C PDP) is operationally acceptable, for example wet-product blow-off or container rinsing where the product is already wet. For general direct food contact air, the industry benchmark sits at Class 1.2.1 or better.

The class assignments in this table reflect industry consensus that Australian food safety auditors, SQF assessors, and BRC auditors expect to see documented in a HACCP plan. They are not mandated by FSANZ, ISO 8573-1 itself, or any other Australian regulator. If a facility selects a less stringent class than shown, the justification must be documented and defensible against the site’s hazard analysis.

Why “Sterile Filter” Means a 0.2 µm Hydrophobic Membrane, Not a 0.01 µm Coalescer

Get this distinction wrong and you have written a sterility gap into your HACCP plan. A 0.01 µm coalescing filter and a 0.2 µm sterile membrane filter serve different purposes and are not interchangeable. A 0.01 µm coalescing filter targets oil aerosol and sub-micron particulate, delivering ISO 8573-1 Class 1 particulate cleanliness, but bacteria and spores can pass through a coalescing element. A 0.2 µm hydrophobic membrane filter (typically PTFE; examples include Pall Emflon PFR, Sartorius Sartopore Air, and Donaldson UltraPleat sterile) is the true bacterial barrier with log-7 retention of viable organisms.

The complete treatment train for direct product contact air is therefore three stages: a 0.01 µm coalescing filter for oil aerosol and particulate, an activated carbon stage for oil vapour and odour, and a 0.2 µm hydrophobic sterile membrane filter as the terminal bacterial barrier installed at the point of use. Specifying “sterile filter” without identifying the 0.2 µm membrane stage is a common audit finding because it leaves the bacterial barrier ambiguous in the HACCP plan.

BCAS Food and Beverage Grade Air Guidance for Australian Practice

BPG102-1 Purity Classifications

When an auditor asks where your class numbers came from, this is the document you point to. The British Compressed Air Society (BCAS) Food and Beverage Grade Compressed Air Best Practice Guideline (BPG102-1), revised June 2022, is the most widely referenced international industry guidance for compressed air in food manufacturing. It is private-sector best-practice guidance, not legally binding in Australia, but it is cited by SQF, BRC, and FSSC 22000 auditors as a sensible benchmark. Australian food processors exporting under those certification schemes, or operating under BRC certification, should treat BPG102-1 as a baseline reference for the HACCP risk assessment, not as a regulatory pathway.

Mapping BCAS to ISO 8573-1 and the HACCP Plan

Here is how those BCAS categories translate into the classes and controls you put in your plan. BPG102-1 defines two purity categories for food and beverage applications. The table below maps these to ISO 8573-1 classes and the HACCP control pathway each implies.

BCAS Category	Application Scope	ISO 8573-1 Class	HACCP Control Pathway
Food Grade (direct contact)	Air contacting product or product-contact surfaces	1.2.1 (particles.water.oil)	HACCP CCP; quarterly testing where the certification scheme rulebook (SQF, BRC, FSSC 22000) requires it; oil-free compression; desiccant drying; sterile filtration
Food Grade (indirect/non-contact)	Air in food environment but not contacting product	2.4.2 (particles.water.oil)	HACCP PRP; annual testing under most certification schemes; coalescing filtration; refrigerated drying

BCAS BPG102-1 recommends Class 1.2.1 as the benchmark for direct product contact, which matches the high-risk tier in the HACCP framework above. Specifying air systems to BPG102-1 gives a defensible technical baseline, but it does not on its own discharge FSANZ duties under Standards 3.2.2 and 3.2.3, and it is not an export-certification pathway. The compliance package still needs the site-specific HACCP risk assessment, contamination-control documentation, and certification-scheme audit evidence. For dryer selection guidance to achieve these dew point classes, see the Compressed Air Dryers and Air Quality Guide and our refrigerated vs desiccant dryer comparison with worked 10-year TCO examples.

State Food Safety Legislation and Compressed Air Enforcement

The standard is national, but the auditor who walks your floor answers to a state authority, and that changes what gets scrutinised. FSANZ sets the national food safety standards, but enforcement is the responsibility of state and territory food authorities. Each jurisdiction has its own food safety legislation that adopts the FSANZ Food Standards Code and establishes the audit and licensing regime. The practical consequence for compressed air is that audit intensity, inspector focus areas, and enforcement actions vary by state.

State	Legislation	Enforcing Authority	Compressed Air Audit Focus
New South Wales	Food Act 2003	NSW Food Authority	HACCP plan documentation, filter maintenance records, air quality test certificates
Victoria	Food Act 1984 (general food); separate primary-industry Acts for dairy, meat and seafood	Local councils administer the Food Act 1984; Dairy Food Safety Victoria (dairy) and PrimeSafe (meat and seafood) operate under their own primary-industry legislation	Equipment suitability under Standard 3.2.3, corrective action records, CCP verification
Queensland	Food Act 2006 (general food); Food Production (Safety) Act 2000 (primary products)	Queensland Health and local government under the Food Act 2006; Safe Food Production Queensland under the Food Production (Safety) Act 2000	Risk-based licensing, HACCP verification audits, compressed air included in utility hazard review
South Australia	Food Act 2001	SA Health, Biosecurity SA	HACCP plan adequacy, periodic third-party audit results
Western Australia	Food Act 2008	Department of Health WA, local government	Equipment and premises compliance under Standard 3.2.3
Tasmania	Food Act 2003	Department of Health Tasmania	HACCP-based food safety programmes, periodic verification

The key takeaway for multi-site operators: a compressed air management programme that satisfies the most rigorous state (typically NSW or Queensland for processed foods, Victoria for dairy) will meet requirements in all jurisdictions. Build to the highest standard and apply consistently across all sites.

Compressed Air Quality Testing and NATA Accreditation

What to Test and How Often

Specifying a class is only half the job; you have to prove the air actually meets it. Compressed air quality testing verifies that the air delivered to each use point meets the ISO 8573-1 class specified in the HACCP plan. Testing covers four parameters: solid particulate count (by particle size per cubic metre), pressure dew point (°C), total oil content (aerosol, liquid, and vapour in mg/m³), and microbiological contamination (colony-forming units per cubic metre). Some certification schemes also require testing for gaseous contaminants (carbon monoxide, carbon dioxide, sulphur dioxide) where ambient intake air may be affected by nearby combustion sources.

Testing cadence is not prescribed by FSANZ or ISO 8573-1. The frequencies in the table below are the testing rhythms most commonly required by the GFSI-benchmarked certification schemes (SQF, BRC, FSSC 22000) and the BCAS BPG102-1 industry guideline, scaled to risk tier. Always confirm the current cadence against the certification-scheme rulebook your site is being audited against; scheme cadences are updated independently of the Food Standards Code.

Risk Tier	ISO 8573-1 Class	Test Parameters	Typical Industry Frequency	Testing Standard
High risk (direct contact)	1.2.1 or 1.4.1	Particles, PDP, oil, microbiological	Quarterly is the typical industry cadence; confirm against your scheme rulebook	ISO 8573 Parts 2, 3, 4, 7
Medium risk (indirect contact)	2.4.2	Particles, PDP, oil	Six-monthly typical; confirm against your scheme rulebook	ISO 8573 Parts 2, 3, 4
Low risk (non-contact)	3.4.3 to 4.5.4	Oil, PDP	Annually typical; confirm against your scheme rulebook	ISO 8573 Parts 2, 4

Testing should also be performed after any compressor service, filter element replacement, dryer maintenance, or system modification. This event-driven testing creates a verification record that the system returned to specification before production resumed.

NATA-Accredited Testing vs In-House Monitoring

Where your result comes from matters as much as the number on it. The National Association of Testing Authorities (NATA) accredits Australian laboratories for specific test scopes. Third-party testing by a NATA-accredited laboratory strengthens the defensibility of a result during SQF, BRC, and FSSC 22000 audits, because the laboratory’s accredited scope is documented and traceable. NATA accreditation is not a guarantee an auditor will accept the result; scheme acceptance also depends on the laboratory’s specific scope covering the ISO 8573 parts referenced in your HACCP plan. Confirm the NATA scope document with the testing provider before engagement.

In-house monitoring using portable particle counters, dew point meters, and oil vapour sensors is valuable for interim checks between formal test cycles, and most certification schemes are typically satisfied by an annual NATA-accredited or equivalent third-party laboratory test for audit documentation; confirm the exact requirement against your scheme rulebook.

Acceptance Criteria and Failed Test Procedures

A failed test is not the disaster; an undocumented response to one is. Acceptance criteria are the ISO 8573-1 class limits specified in the HACCP plan for each use point. If a test result exceeds the specified class (for example, oil content of 0.05 mg/m³ against a Class 1 limit of 0.01 mg/m³), the facility must initiate a corrective action procedure: isolate the affected air supply, investigate the root cause (typically a failed filter element, degraded dryer performance, or compressor issue), implement the corrective action, retest to confirm the system is back within specification, and document the entire sequence. The corrective action record is a critical audit document.

Mapping to GFSI-Benchmarked Schemes: SQF, BRC, and FSSC 22000

If you hold a GFSI-benchmarked certification, you are carrying scheme clauses on top of the FSANZ baseline, and the auditor will quote them at you. Australian food manufacturers certified to a Global Food Safety Initiative (GFSI) benchmarked scheme face compressed air requirements that sit on top of the baseline FSANZ obligation. Each of the three major schemes (SQF, BRC, FSSC 22000) publishes its own rulebook clauses that auditors reference during site visits. Scheme clauses are updated periodically and the clause numbering can shift between editions; the references below are the clauses most commonly cited at audit, but always verify the current edition of the scheme rulebook with the certifying body before relying on a specific clause number.

Scheme	Edition (verify current with certifying body)	Clause Commonly Cited	Compressed Air Requirement (industry summary)
SQF Food Safety Code for Manufacturing	Edition 9 series	Section 11.5 (utilities; specifically clause 11.5.5 air and other gases)	Contact-point register with documented ISO 8573-1 class at each use point; risk-based monitoring across particles, water, oil, and microbiological at a minimum annual frequency; corrective action procedure for failed tests
BRC Global Standard for Food Safety	Issue 9 series	Section 4.5 (utilities covering water, ice, air and other gases; specifically clause 4.5.3 compressed air)	Compressed air in direct contact with product shall be filtered at point of use; air and other gases monitored to ensure no contamination risk
FSSC 22000	Version 6 series	ISO/TS 22002-1 clause 6.5 (Compressed air and other gases; this is a PRP standard, not an FSSC Additional Requirement)	Type, purpose, and controls documented; overview of compressed air use in the facility; monitoring programme aligned with intended use and facility risk profile

Of the three, SQF Section 11.5 is the most prescriptive on parameter coverage, typically asking for monitoring across particles, water, oil and microbiological as a minimum. Facilities holding multiple certifications can satisfy all three schemes by building a single compressed air management file that meets the SQF requirement and cross-referencing the BRC and FSSC clauses. This avoids duplicate documentation and simplifies the evidence pack presented to auditors across different scheme visits.

Auditors from all three schemes increasingly verify compressed air at the point of use rather than at the compressor room outlet. The shift reflects lessons learned from recurring contamination incidents where filter performance at the central plant did not translate to air quality at the production line. Point-of-use testing is now the expected baseline, with sampling ports specified in the HACCP plan and test frequency scaled to risk tier.

Common Compressed Air Audit Findings in Australian Food Facilities

If you want to know where your evidence pack is most likely to fall over, start here. Based on industry audit patterns reported by food safety consultants and state food authorities, the six most frequent compressed air non-conformances in Australian food facilities are:

1. No documented ISO 8573-1 class specification. The HACCP plan identifies compressed air as a potential hazard but does not assign a specific ISO 8573-1 class to each use point. Auditors expect to see a three-number class (particles.water.oil) for every compressed air application in the facility, with a documented risk justification for each.

2. Overdue filter element replacement. Coalescing and particulate filter elements have a defined service life (typically 8,000 to 12,000 operating hours or 12 months, whichever comes first, depending on filter type and contamination load). Many facilities do not track replacement schedules in their maintenance management system, and elements run past the manufacturer-recommended service life. This is a straightforward documentation finding that is entirely preventable.

3. Incomplete air quality test records. The facility tests for oil content and moisture but omits particle count and microbiological parameters. SQF, BRC and FSSC scheme rulebooks generally require monitoring across particles, water, oil, microbiological contamination, and (where intake air conditions warrant) relevant gaseous contaminants. Missing parameters trigger a finding.

4. No corrective action procedure for failed tests. When an air quality test exceeds the specified ISO class, there is no documented corrective action, root cause analysis, or retest verification. Auditors treat this as a systemic control failure rather than an isolated event.

5. Undocumented equipment changes. A compressor has been replaced, a filter stage added or removed, or a dryer serviced without updating the HACCP plan, risk assessment, or equipment register. Any change to the compressed air system that could affect air quality must trigger a HACCP review.

6. No point-of-use verification. Air quality is tested at the compressor room outlet but not at the actual point of use on the production line. Distribution piping introduces additional contamination (pipe scale, condensate, biofilm in dead legs). Testing must occur at the point where air enters the product zone, not upstream of the distribution system.

Each of these findings is preventable through a structured compressed air management programme that ties the HACCP hazard analysis to a maintenance schedule, testing calendar, and corrective action register. Facilities that treat compressed air with the same rigour as potable water pass audits without compressed air findings.

Frequently Asked Questions

Related Resources

• Compressed Air for Food and Beverage Processing: compressor selection, filtration chains, system sizing, and worked cost examples for food facilities
• TGA Pharmaceutical Compressed Air Compliance: the sister regulatory guide covering TGA and PIC/S requirements for pharmaceutical manufacturing
• Compressed Air Filtration: filter types, selection, and ISO 8573-1 compliance for all applications
• Oil-Free Air Compressors: Class 0 technology options for food-contact and pharmaceutical applications
• Compressed Air Dryers and Air Quality Guide: dew point control, dryer types, and moisture management
• Piping and Distribution: ring main design, material selection, and dead leg prevention
• Compressed Air Leak Detection: maintaining system integrity and preventing contamination ingress
• Air Compressor Maintenance Australia: service intervals, inspection checklists, and filter replacement schedules
• Air Compressor Sizing Guide: matching compressor capacity to production demand
• Air Compressors Australia: equipment types and selection guidance
• Compressed Air Systems Australia: system design fundamentals
• All Resources and Guides: the complete CAS resource library

External authority references:

• FSANZ Food Standards Code
• FSANZ Standard 3.2.2: Food Safety Practices and General Requirements
• ISO 8573-1:2010: Compressed Air Quality Classes
• BCAS BPG102-1: Food and Beverage Grade Compressed Air Best Practice Guideline
• NATA: National Association of Testing Authorities Australia
• NSW Food Authority
• Safe Food Production Queensland

General information disclaimer. The information on this page is general in nature and provided for educational purposes only. It is not engineering, safety, or professional advice, and it does not account for the specifics of your site, equipment, or duty. Compressed air system design, pressure equipment selection, and regulatory compliance must be confirmed with a qualified engineer and the relevant work health and safety regulator before you act. Compressed Air Solutions is a publisher and referral service, not a licensed engineering practice, and accepts no liability for decisions made on the basis of this content. Verify all figures, standards references, and regulatory requirements against current primary sources.