Knowella

Compressed Gas Cylinder Check

The recurring failure in cylinder storage is not a missing cap, it is segregation drifting back together. Oxygen and fuel gases get wheeled into the same cage or against the same wall because moving them apart takes floor space nobody allocated, and the distance rule gets treated as tidiness rather than the control that stops a small leak becoming an explosion. Every audit finds it re-forming within weeks.

KnowSafeChecklistSAF-16653 fields across 6 sectionsFull researchSee the form

Reviewed by Siddarth SinghCSPLast reviewed 16 August 2026

Basis
ISO 45001 cl.8.1
Workspace
KnowSafe
Form type
Checklist
Review cycle
Monthly, by the area owner
Scoring
Pass rate — high is good

The short version

  • This is a monthly checklist, not an annual review — it is designed to catch drift in storage and segregation before it compounds.
  • Segregating oxidising and flammable gases is the single control that determines whether a leak stays a leak or becomes an explosion.
  • The template holds 53 fields across 6 sections, with findings repeating for each deficiency raised.
  • Test dates and valve protection are scored alongside segregation because an intact cylinder with a stuck valve is still a hazard waiting for someone to force it.

What this is

What is a compressed gas cylinder check?

What is a compressed gas cylinder check?

It is a monthly checklist covering how cylinders are stored, secured, segregated and labelled, alongside whether valve protection is fitted and test dates are current. It sits in the Pressure Systems and Refrigeration programme and is built against ISO 45001 cl.8.1.

Why does oxygen and fuel gas segregation matter this much?

Oxygen does not burn, but it turns anything nearby into fuel and makes a small ignition source burn far hotter and faster. Stored beside acetylene or propane with no separation, a minor leak or a stray spark stops being a contained fire and becomes an explosion that can take out a building.

What counts as a cylinder in scope for this check?

Any compressed gas cylinder held on site for welding, cutting, refrigeration servicing or process use, whether full, part-used or empty. Empty cylinders still hold residual pressure and are checked to the same storage and segregation standard as full ones.

Scope

When is a compressed gas cylinder check required?

This checklist covers the gas store itself — storage, segregation, cylinder condition and signage. It is not the place to record pressure vessel examinations, boiler operation or ammonia system reviews, even though all four sit in the same programme.

Use this template when

  • Cylinders are held anywhere on site for welding, cutting, purging or refrigeration servicing
  • A new gas store or cage is being set up, or an existing one is being decommissioned
  • You are running the Pressure Systems and Refrigeration programme and this is one of its monthly steps
  • A linked chemical register or hot work permit needs this record to exist
  • A cylinder delivery or return changes what is held, and the register needs updating

Do not use it for

  • Pressure System Written Scheme, which sets out which parts of a pressure system are examined, how, and at what interval.
  • Steam System Safety Check, which checks boiler operation, water treatment, blowdown, relief devices and steam trap condition.
  • Boiler Attendant Log, which records the periodic checks a boiler attendant makes through a shift, with readings and any action taken.
  • Ammonia System Safety Review, which is the yearly engineering review of a refrigeration plant, not a monthly store check.
  • Anything outside KnowSafe, which belongs in the workspace that owns that process

Compliance mapping

Which ISO 45001 cl.8.1 requirements does this satisfy?

The form maps to a small number of hard controls, and each one traces to a specific section rather than a general housekeeping standard.

ClauseRequirementWhere it lands
ISO 45001 cl.8.1Operational controls for identified hazards must be established, implemented and maintainedStorage
ISO 45001 cl.8.1Controls must reflect the hierarchy of controls, favouring elimination and substitution before reliance on procedureStorage
ISO 45001 cl.8.1Equipment condition relevant to a hazard must be verified as part of the operational controlCylinder condition
ISO 45001 cl.8.1Warning and hazard communication measures must be maintained where a significant risk is presentSignage and response
ISO 45001 cl.8.1Nonconformities identified during operational monitoring must be recorded and progressedFindings
ISO 45001 cl.8.1Performance against operational controls must be evaluated and reportedResult

What it does not cover

  • Segregation distance adequate, which is marked 'Yes' from habit rather than from measuring the gap between oxidising and flammable racks.
  • Valve protection fitted, which gets ticked without checking that removable caps are actually on the cylinders currently in the store, not the ones that were there last month.
  • Test dates current, which is confirmed without cross-checking the stamped test date against the supplier's return schedule for cylinders due for exchange.
  • Cage secure against theft, which passes on a locked gate while a side panel or low fence section stays unrepaired.
  • Leak response procedure known, which is answered 'Yes' by the reviewer's own knowledge rather than by asking the shift staff who would actually respond.

Global

Compressed Gas Cylinder Check requirements by country

Compressed gas storage sits under general workplace safety law almost everywhere, but the specific separation distances and cylinder handling duties come from different instruments depending on where the site operates.

United States

OSHA 29 CFR 1910.101 and 1910.253

Federal standard for compressed gas general requirements and oxygen-fuel gas welding equipment

Cylinders must be stored, handled and inspected per the standard the manufacturer marks them to (usually a Compressed Gas Association pamphlet), and oxygen must be kept away from fuel-gas cylinders and combustible materials.

United Kingdom

DSEAR 2002 (Dangerous Substances and Explosive Atmospheres Regulations)

Duty to assess and control risks from substances that could cause fire or explosion, including compressed and liquefied gases

The employer must identify explosive atmosphere risks from cylinder storage and apply control measures, which in practice means the segregation and ventilation checks this template scores.

European Union

ADR — European Agreement concerning the International Carriage of Dangerous Goods by Road

Governs classification, packaging, labelling and segregation of gases in transit, which carries over into how sites store cylinders awaiting collection or delivery

Sites that both store and transport cylinders need the storage segregation in this check to match the compatibility groups ADR requires for transport, or the two records contradict each other.

How to complete it

How to complete a compressed gas cylinder check, step by step

Most fields here are binary, but a handful carry judgement calls that decide whether the record actually reflects the store or just documents that someone walked past it.

What 'well ventilated' means for an indoor store

Natural ventilation through permanent high and low level openings is different from a store that merely has a door left open. If the store relies on someone remembering to prop a door, mark it marginal rather than yes, because the control disappears the first cold morning someone shuts it.

Where the segregation line actually falls

Regulatory guidance gives a minimum distance or a fire-rated partition as the acceptable alternative. A rack that is 'close but not touching' does not meet either test, and the reviewer should treat visual proximity as a fail rather than round it up to marginal.

How to treat cylinders awaiting collection

Empty cylinders staged for supplier collection still hold residual gas and are frequently the ones left outside the segregation zone because they are seen as already dealt with. They are in scope until they physically leave site.

When an overdue test date blocks use rather than just gets flagged

A cylinder past its stamped test date is not a paperwork lag, it is a pressure vessel with an unverified shell. The judgement call is whether the reviewer quarantines it on the spot or only records it as a finding for later action — the form supports both, but only one actually removes the risk today.

What auditors find

Most common compressed gas cylinder check findings

The deficiencies this check surfaces most often cluster around a small number of physical conditions rather than paperwork gaps.

FindingClauseWhat fixes it
Oxygen cylinders racked directly beside acetylene with no partitionISO 45001 cl.8.1Relocate to separate racks at the minimum regulatory distance or install a fire-rated partition; do not accept a rope or tape line as separation.
Valve caps missing on cylinders not currently in useISO 45001 cl.8.1Fit protection caps before the cylinder is moved or restocked, and hold a small stock of spare caps in the store so a missing cap is never the reason one stays uncapped.
Cylinders stored lying down or unsecured against a wall or trolleyISO 45001 cl.8.1Chain or strap cylinders upright to a fixed point individually, not as a group leaning on one chain that fails if one cylinder is removed.
Test date stamps illegible or past due with no quarantine tagISO 45001 cl.8.1Tag and physically separate overdue cylinders from stock in use, and confirm the supplier's exchange schedule against the register rather than the stamp alone.
Full and empty cylinders mixed in the same rackISO 45001 cl.8.1Mark racks 'full' and 'empty' and enforce the split at goods-in, since mixed racks cause double handling and misjudged residual pressure.
Warning signage present but not matched to the gases currently heldISO 45001 cl.8.1Update signage whenever the gas mix on the 'gases held' field changes, and check it at every monthly cycle rather than only when the store is first set up.

Case in point

Case in point: a segregation gap that only showed on paper

A packing site had oxygen and propane cylinders on opposite walls of the same small store, twelve feet apart on a plan that looked compliant. What the plan did not show was a support pillar running between them that the site had quietly used to hang an extension reel, effectively creating a single connected space with the pillar as a false partition.

The monthly check had marked segregation distance 'Yes' for four consecutive cycles because the reviewer measured the wall-to-wall distance rather than checking whether anything bridged it. The gap was only caught when a new area owner walked the store with the actual field help text — 'segregation distance is the whole control' — in mind, rather than treating the check as a form to complete from the doorway.

The template

The template, field by field

The form exactly as it installs. Every field, option, score and conditional rule is editable, and the links to other templates come with it.

53fields
6 sections
Reference
SAF-166
Archetype
Checklist
Record ID
CHK-2026-000
Scoring
Pass rate
Direction
High is good
Singleton
Yes
Basis
ISO 45001 cl.8.1
Links
Links Chemical register, Hot work
Tags
Pressure, Gases
Sections
6
Fields
53
Follow up fields
9
Repeating sections
1
Links out
3
Field typesOwn ID, generated on saveCase thread and parentPick list from a registryLinked to another templateFollow up, dashed outlineScored

Header

12 fields
Text

Check ID*

Generated on save

Auto sequence. Format CHK-2026-00000.

The record's own ID. Other templates point at this value.

Single Choice

Status*

Scored

Drives who this goes to next.

  • Planned2 pts
  • In progress2 pts
  • Complete3 pts
  • Deferred0 pts
  • Open0 pts
  • Closed3 pts
  • Overdue0 pts
Date & Time

Date and Time*

Users

Completed By*

Pick List

Site*

From FDN-001 Site NameFilter: Status is Active
Text

Site ID*

Linked

Format SITE-000.

Links to FDN-001 Site ID

Single Choice

Area

Optional

The area within the site.

Cutting roomBoning hallPackingChill storeFreezerPasteurisingFillingCulture roomDespatchYardWorkshopPlant roomOffices
Location

Exact Location

Optional

Drop a pin for anything hard to find.

Info

Oxygen And Fuel Gas Together

Segregation distance is the whole control. Oxygen cylinders stored beside acetylene turn a small fire into an event that removes the building.

Text

Storage Location*

Numeric Answer

Cylinders Present*

Multi Choice

Gases Held*

OxygenAcetylenePropaneNitrogenCarbon dioxideArgonAmmonia

Storage

9 fields
Single Choice

Cylinders Upright And Secured*

Scored
  • Yes3 pts
  • Some loose1 pt
  • No0 pts
Single Choice

Valve Protection Fitted*

Scored
  • Yes3 pts
  • Some missing1 pt
  • No0 pts
Single Choice

Stored Outside Or Well Ventilated*

Scored
  • Yes3 pts
  • Marginal1 pt
  • No0 pts
Single Choice

Oxidising And Flammable Segregated*

Scored
  • Yes3 pts
  • Marginal1 pt
  • No0 pts
Single Choice

Segregation Distance Adequate*

Scored
  • Yes3 pts
  • Marginal1 pt
  • No0 pts
Single Choice

Full And Empty Separated*

Scored
  • Yes3 pts
  • Partly1 pt
  • No0 pts
Single Choice

Cage Secure Against Theft*

Scored
  • Yes3 pts
  • Partly1 pt
  • No0 pts
Single Choice

Away From Ignition Sources*

Scored
  • Yes3 pts
  • Marginal1 pt
  • No0 pts
Single Choice

Away From Drains And Low Areas

OptionalScored
  • Yes3 pts
  • Marginal1 pt
  • No0 pts

Cylinder condition

6 fields
Single Choice

Test Dates Current*

Scored
  • All3 pts
  • Some overdue1 pt
  • Many overdue0 pts
Single Choice

No Damage Or Corrosion*

Scored
  • Confirmed3 pts
  • Minor1 pt
  • Significant0 pts
Single Choice

Labels Legible*

Scored
  • Yes3 pts
  • Partly1 pt
  • No0 pts
Single Choice

Valves Closed On Unused Cylinders*

Scored
  • Yes3 pts
  • Some open1 pt
  • No0 pts
Single Choice

Regulators In Date And Correct*

Scored
  • Yes3 pts
  • Some overdue1 pt
  • No0 pts
Single Choice

Hoses And Flashback Arrestors Fitted

OptionalScored
  • Yes3 pts
  • Partly1 pt
  • No0 pts

Signage and response

5 fields
Single Choice

Warning Signage Displayed*

Scored
  • Yes3 pts
  • Partly1 pt
  • No0 pts
Single Choice

Emergency Services Informed Of Storage

OptionalScored
  • Yes3 pts
  • No0 pts
Single Choice

Leak Response Procedure Known*

Scored
  • Yes3 pts
  • Partly1 pt
  • No0 pts
Single Choice

Cylinders In Register*

Scored
  • Yes3 pts
  • Partly1 pt
  • No0 pts
Single Choice

Handling Trolley Available*

Scored
  • Yes3 pts
  • No0 pts

Findings

Repeats7 fields
Single Choice

Result*

Scored
  • Pass3 pts
  • Pass with conditions2 pts
  • Fail0 pts
Single Choice

Severity

OptionalScoredShows if Result equals Fail
  • Minor3 pts
  • Moderate1 pt
  • Serious0 pts
Single Choice

Element Tag

OptionalShows if Result equals Fail

Groups deficiencies by hazard type across every template.

Hazard identificationPPEHousekeepingEnergy isolationMachine guardingErgonomicsChemicalElectricalWorking at heightConfined spaceMobile equipment
Text

Deficiency Detail

OptionalShows if Result equals Fail
File Upload

Photo Evidence

OptionalShows if Result equals Fail
Single Choice

Fixed On The Spot

OptionalShows if Result equals Fail
YesNo
Text

Finding ID

OptionalLinkedShows if Fixed On The Spot equals No

Raise a finding record where this needs tracking to closure.

Links to FDN-015 Finding ID

Result

14 fields
Numeric Answer

Items Assessed*

Excludes anything marked N/A.

Numeric Answer

Items Failed*

Numeric Answer

Score Percent*

Scored

Calculated on submission. High is good. N/A items leave the denominator.

Single Choice

Result Band*

Scored
  • Pass3 pts
  • Caution1 pt
  • Fail0 pts
Numeric Answer

Completeness Percent*

How much of the template was actually answered. A high score on a half completed form is not a high score.

Single Choice

Action Required*

Scored

Raise the action record, then enter its reference here.

  • No2 pts
  • Yes0 pts
Single Choice

Priority

OptionalScoredShows if Action Required equals Yes
  • High0 pts
  • Medium1 pt
  • Low3 pts
Text

CAPA ID

OptionalLinkedShows if Action Required equals Yes

Format CAPA-2026-00000.

Links to FDN-014 CAPA ID

Users

Action Owner

OptionalShows if Action Required equals Yes
Date & Time

Next Due*

Users

Area Owner*

Signature

Signature*

Users

Safety Lead*

Signature

Second Signature*

SAF-166 · record IDs look like CHK-2026-000 · Links Chemical register, Hot work

Open in Knowella

Run it with agents

From a document you fill in to a programme that runs itself

The form itself is not where this slips — it is in noticing that segregation has quietly closed up between cycles and getting the right person to fix it before the next audit.

KnowSafe

Holds the cylinder check against the site's chemical register and hot work permits, flags when segregation or test-date findings repeat month over month, and keeps the evidence trail in one place.

KnowMaintain

Tracks cylinder test dates and supplier exchange schedules alongside other statutory equipment intervals, so an overdue cylinder shows up on the same maintenance calendar as everything else due.

KnowComply

Rolls this check into the site's regulatory position for compressed gas storage, so a DSEAR or OSHA-facing audit can pull the segregation history rather than reconstructing it from memory.

Ella
Ella

Coordinates the crew across these workspaces, rolls completion and repeat findings into one view, and holds every write for your approval before it touches a record.

This template lives in KnowSafe — safety and compliance. Incidents, hazards, permits, inspections and the critical controls behind them.

Meet KnowSafe→

Glossary

Compressed Gas Cylinder Check definitions and key terms

Segregation distance
The minimum separation, or fire-rated partition equivalent, required between incompatible gas classes such as oxidisers and flammables, set out in the applicable compressed gas or dangerous substances standard.
Flashback arrestor
A device fitted to a hose or regulator that stops a flame travelling back up the gas line into the cylinder, required on oxy-fuel welding and cutting equipment.
Compressed Gas Association (CGA) pamphlet
The industry reference standards, cited by OSHA and widely adopted elsewhere, that set cylinder storage, handling and testing practice by gas type.
Statutory examination interval
The maximum period between mandatory tests or inspections of a pressure vessel or cylinder set by regulation or the manufacturer's certification, after which the item must be re-tested or withdrawn.
Oxidising gas
A gas, such as oxygen, that supports and accelerates combustion of other materials without itself being flammable — the reason it must be kept clear of fuel gases and combustibles.

FAQ

Frequently asked questions about compressed gas cylinder check

What is the compressed gas cylinder check template based on?+

It is built against ISO 45001 cl.8.1, the operational controls clause of the occupational health and safety management systems standard. It also draws on the segregation and storage practice set out in national compressed gas standards such as OSHA 29 CFR 1910.101 and UK DSEAR.

What sections does the compressed gas cylinder check contain?+

There are six sections: header, storage, cylinder condition, signage and response, findings, and result. Together they hold 53 fields, 38 of which are required.

How many compressed gas cylinder check records should we have?+

This is a singleton. One live record per workspace, set up once and maintained monthly rather than recreated for each event, with other templates such as the chemical register and hot work permit referring back to it.

Which programme does the compressed gas cylinder check belong to?+

It is part of Pressure Systems and Refrigeration, alongside the pressure system written scheme, steam checks and boiler logs. The programme outcome is statutory examinations in date and a position that stands up to a regulator visit.

How is a compressed gas cylinder check scored?+

Scoring is pass rate, where high is good. The score is calculated on submission from items assessed against items failed, with items marked not applicable removed from the denominator.

Can the compressed gas cylinder check template be changed?+

Yes. Every field, option, score and conditional rule is editable, and the links to the chemical register and hot work permit come with it. Most sites install it as it is, run it for a cycle, then adjust the area list or gas options to match what they actually store.

Keep going

Related templates and programmes

Siddarth Singh

Written and reviewed by

Siddarth Singh

Founder & Chief Executive Officer, Knowella

Certified Safety Professional and industrial and systems engineer with more than a decade inside food supply chain, freight and manufacturing operations. This page was written against the current text of the standards it cites, not against secondary summaries of them.

  • Certified Safety Professional (CSP), Board of Certified Safety Professionals
  • MBA, University of Chicago Booth School of Business
  • MS and BS, The Ohio State University, Industrial and Systems Engineering
  • Six Sigma Black Belt
Verify with BCSP →

Sources and last review. Reviewed 16 August 2026 against:

  • ISO 45001:2018 cl.8.1 — Operational planning and control
  • OSHA 29 CFR 1910.101 — Compressed gases (general requirements)
  • OSHA 29 CFR 1910.253 — Oxygen-fuel gas welding and cutting
  • DSEAR 2002 — Dangerous Substances and Explosive Atmospheres Regulations
  • ADR — European Agreement concerning the International Carriage of Dangerous Goods by Road

This page is general guidance, not legal advice. Confirm requirements with your jurisdiction’s regulator.

Start in Minutes, Not Weeks

Launch a Ready-Made Template and Customize It Your Way

Every template is fully editable. Adjust fields, workflows, and branding to match your processes, then deploy to your team instantly.