CONPDS CHECKER

Photo Documentation for ISO Tank Container Inspections and Cleaning

Q: What is an ISO tank container evidence system?

An ISO tank container evidence system captures photographic evidence of tank inspection, cleaning verification, and repair, links each image to a validated tank number, and stores records in a centralised, searchable archive. It adds the evidence layer that supports cleaning certificates, last cargo declarations, and CSC periodic inspection records — without replacing specialist ERP platforms used for tank management.

Tank container depots and cleaning stations face documentation requirements that dry container workflows do not cover. Every inspection, cleaning cycle, and repair becomes a structured, timestamped record — linked to the tank number and ready to attach to cleaning certificates, CSC records, and ACC audit requests.

Trusted by container depots, cleaning stations, and leasing companies across Europe — from single-site operators to multi-depot tank networks documenting thousands of inspection events monthly.

No credit card required · Operational within days of onboarding · GDPR compliant

What Is ISO Tank Container Evidence System?

An ISO tank container evidence system is a structured digital workflow that captures photographic evidence of tank inspection, cleaning verification, and repair, links each image to a validated tank number, and stores records in a centralised, searchable archive. It adds the evidence layer required to support cleaning certificates, last cargo declarations, gas-free certificates, and CSC periodic inspection records — replacing informal capture methods such as WhatsApp threads, email attachments, and shared folders.

ConPDS delivers this as a purpose-built platform for tank container operations. Field staff capture exterior, valve, manhole, and post-cleaning photos via the ConPDS Checker mobile app. AI-powered OCR reads the tank number at capture — validated against the ISO 6346 container identification standard, which governs the BIC-registered owner code, serial number, and check digit that identify every ISO tank container — and links every image to the correct record automatically. The complete photo set, with timestamps and GPS, is instantly available in the web dashboard for certificate attachment, repair claim support, or guest portal sharing. ConPDS is the photo evidence layer, not a tank management ERP — it works alongside specialist fleet platforms, not in place of them. For the wider platform category, see the foundational guide to container operational evidence.

Structured tank evidence platforms capture:

Full visual inspection — shell, frame, valves, manhole area, bottom outlet, data plate, CSC plate

Post-cleaning photo evidence supporting the cleaning certificate workflow, matched to the validated tank number via AI-powered OCR

Repair documentation — pre and post photos for valve replacement, structural repairs, and component work

Timestamp and GPS location preserved from the moment of capture — not at upload

Records distributable to shipping lines, leasing companies, and authorised external parties via guest portal, email, FTP, or API

Why Manual ISO Tank Container Photo Documentation Creates Operational Risk

A cleaning certificate without supporting photo evidence is a statement. A CSC periodic inspection record without photographic proof of the inspection points is a form. Without a structured ISO tank evidence layer, tank depots and cleaning stations face a set of documentation failures that are invisible during daily operations — but become critical the moment a shipping line disputes cleaning quality, a leasing company queries repair work, or an ACC audit request arrives.

Operational metric: A tank depot processing 40 ISO tank containers per day generates over 600 photos across inspection, cleaning, and repair workflows. Without automatic tank number linking, photo retrieval during disputes becomes unworkable — folder sorting and filename guessing break at this scale, and an unlinked photo has no evidentiary value.

Documentation Failures

Valve, manhole, and post-cleaning photos scattered across personal devices, chat threads, and shared folders

Tank numbers manually typed into filenames — transposition errors make historical records permanently unfindable

Photos transferred via WhatsApp lose timestamp and GPS metadata at the moment of transfer

No structured link between photo and specific tank number — matching to the cleaning certificate depends on memory

Operational Consequences

Shipping lines dispute cleaning quality with no retrievable post-cleaning photo evidence to counter the claim

Pre-existing valve or gasket damage misattributed to the depot when no pre-service record exists

Staff departure makes entire tank inspection histories inaccessible overnight

ACC or CSC audit requests cannot be answered with verifiable, timestamped photographic records

Without Structured ISO Tank Documentation

A shipping line raises a cleaning quality dispute four weeks after a tank returned to service. The depot cannot locate the post-cleaning interior photos or confirm which technician performed the work — the claim is upheld and the depot absorbs the cost.

With Structured ISO Tank Documentation

The complete pre- and post-cleaning photo set — timestamped, GPS-tagged, and linked to the tank number — is retrieved in seconds and shared directly with the shipping line through the ConPDS guest portal alongside the cleaning certificate. The claim resolves on evidence.

How the ISO Tank Evidence Workflow Works in Practice

Four structured steps replace informal capture with an automatic, auditable tank record — covering pre-service inspection, defect documentation, post-cleaning or post-repair verification, and distribution to authorised parties.

Pre-Service Capture

OCR links photos to tank number

Inspection & Defect Documentation

Valves, manhole, CSC plate recorded

Post-Cleaning / Post-Repair Capture

Cleaning and repair verified, linked

Certificate Attachment & Distribution

Share via portal, email, or API

STEP 01

Photograph Pre-Service Tank Condition

On tank arrival, field staff photograph exterior shell, frame, valves, manhole cover, bottom outlet, and data plate using the ConPDS Checker app. AI-powered OCR reads the tank number at capture and links all images to the correct record — no manual entry. Timestamp and GPS data are preserved at this point.

STEP 02

Document Each Inspection Point and Any Defects

Every tank inspection point is photographed against the defined sequence — valve condition, gasket integrity, pressure relief device markings, CSC plate legibility. Any defect or component requiring repair is recorded and added to the same tank record, creating a defensible pre-service baseline.

STEP 03

Capture Post-Cleaning and Post-Repair Evidence

After cleaning or repair is complete, a full new photo set — exterior, interior, valves, and manhole area — is captured and linked automatically to the same tank record. The before and after set is now stored centrally in the ConPDS dashboard, searchable by tank number from any device.

STEP 04

Attach to Certificates and Distribute Automatically

The complete photo set can be downloaded and attached to a cleaning certificate or repair claim, pushed automatically to shipping lines and leasing companies via email or FTP, or accessed through the ConPDS guest portal. Every distribution event is logged in the audit trail — who received which photos, via which channel, and when.

Container Inspection Workflows Specific to ISO Tank Operations

Tank container inspection differs from dry container gate-in documentation in one critical respect: the inspection points are specific to the tank structure, and each one must be photographically recorded against a defined sequence. The following detail defines exactly what gets captured during a complete tank inspection photo workflow.

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Full Exterior Visual Inspection

All sides of the tank shell, frame, and structural components photographed — recording existing dents, corrosion, paint condition, and frame damage. Establishes the tank's structural condition before any service activity begins and protects the depot from liability for pre-existing damage.

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Valves and Fittings Documentation

Top and bottom valves, air inlet, foot valve, and associated fittings photographed individually — recording condition, visible leaks, identification markings, and any damage. Each valve image is filed under the tank's container record to support downstream repair claims and valve replacement evidence.

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Manhole Cover and Gasket Integrity

Manhole cover condition, gasket integrity, and sealing surface documented photographically. Captured before cleaning to record the as-arrived state, and again after cleaning to confirm condition — supporting the cleaning certificate workflow with verifiable evidence.

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Data Plate and CSC Certification Plate

Tank data plate and CSC certification plate photographed for legibility and compliance markings. Every periodic inspection adds a new timestamped record to the tank history — creating the photographic layer that supports CSC periodic inspection compliance over the life of the tank.

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Post-Cleaning Photo Evidence

A full new set of exterior and interior photos captured after the cleaning process — confirming the tank has been returned to a clean and compliant state. These images attach directly to the cleaning certificate, providing the supporting photo evidence that turns an administrative document into verifiable proof.

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Repair Pre- and Post-Documentation

Valve replacement, structural welding, and component repairs captured with paired pre- and post-repair photos linked to the tank number. Spare part serial numbers are photographed at install, creating a traceable warranty and repair claim record for the leasing company or asset owner.

Manual Methods vs. Structured ISO Tank Documentation

Tank documentation requirement	Manual methods (WhatsApp, email, shared folders)	ConPDS — structured tank evidence platform
Tank number linking	Typed into filenames — transposition errors make historical records unfindable	OCR reads the ISO 6346 tank number at capture; every image linked automatically to the validated tank record
Pre-service baseline	Inconsistent — valve, gasket, and structural damage often attributed to the depot by default	Mandatory pre-service sequence covering exterior, valves, manhole, bottom outlet, and data plate
Cleaning certificate evidence	Certificate stands alone — shipping line disputes on cleaning quality cannot be answered	Post-cleaning photo set attached to the certificate; evidence travels with the administrative document
CSC periodic inspection record	Form-based only — no photographic proof of inspection points or plate markings	Each periodic inspection adds a timestamped photo record of inspection points and CSC plate legibility
Timestamp & GPS integrity	Metadata lost at WhatsApp transfer or email compression	Original capture metadata preserved through storage — tamper-evident evidence chain
Distribution to external parties	Manual email attachments — no log of what was sent, to whom, or when	Guest portal, email, FTP, or SFTP with every distribution event logged in the audit trail

Operational Benefits of Structured ISO Tank Container Photo Documentation

A structured tank evidence workflow creates a verifiable record for every cleaning certificate, repair claim, and periodic inspection — while integrating alongside specialist tank management platforms rather than replacing them.

Certificate-Ready Evidence

Post-cleaning and post-repair photo sets attach directly to cleaning certificates and repair claims — the administrative document and the supporting evidence travel together, resolving disputes on verifiable fact rather than recollection.

Instant Tank Record Retrieval

Any tank record — exterior, valves, manhole, post-cleaning, repair photos — retrieved instantly by tank number. No folder sorting, no filename guessing, no lost evidence even months after the original inspection event.

ISO 6346 Tank Number Traceability

Every photo linked to the ISO 6346-validated tank number at capture via AI-powered OCR — creating a traceable record aligned with ACC and CSC compliance requirements and removing the transposition errors that break manual filenames.

Works Alongside Your Tank ERP

ConPDS is the photo evidence layer, not a tank management system. REST API, FTP, SFTP, and email integration connects to existing fleet and lease platforms without disruption or parallel data entry.

Works on Existing Phones

ConPDS Checker runs on the smartphones your depot staff already carry. No specialist hardware, no device rollout, no IT project — live within days of onboarding and offline-capable at the wash rack or in the yard.

GDPR-Compliant Archive

No tank documentation stored on personal devices or in unsecured messaging apps. Encrypted cloud storage with role-based access controls, configurable retention, and a full audit log throughout the documentation lifecycle.

Compliance and Security for ISO Tank Inspection Photo Records

ISO tank documentation carries specific compliance requirements around cleaning certificates, last cargo declarations, gas-free certificates, and CSC periodic inspection records. The structured photo layer is what converts each of these from administrative paperwork into verifiable, audit-ready evidence.

GDPR compliant data architecture 256-bit HTTPS encryption on-device and in transit ISO 6346 tank number validation at capture Role-based access controls across all user levels Configurable data retention periods Immutable timestamp and GPS metadata preserved through storage Full audit log of every access, share, and distribution event CSC certification plate record per periodic inspection

Every capture, distribution, and access logged: Every photo capture, distribution event, and access action is timestamped and logged automatically — supporting ACC and CSC audit requests with verifiable records rather than reconstructed explanations.

Tank identity validated at source: Tank numbers validated at capture against ISO 6346 standards via AI-powered OCR — eliminating the transposition errors that break downstream cleaning certificate and repair claim workflows. For the audit trail architecture that underpins these guarantees, see the audit trail guide for container inspections.

External party access is fully traced: Every portal login, tank search, and photo download by authorised external parties is logged in full — including user ID, tank ID, and timestamp.

No inspection data on personal devices: All records held in the encrypted ConPDS cloud archive — never in WhatsApp threads, email attachments, or uncontrolled shared folders.

Frequently Asked Questions — ISO Tank Container Photo Documentation

What is an ISO tank container evidence system? ▲

An ISO tank container evidence system is a structured platform that captures inspection, cleaning, and repair photos, links each image to a validated tank number, and stores records centrally for instant retrieval and distribution. It replaces WhatsApp threads, email attachments, and shared folders with a single auditable system that produces timestamped evidence for cleaning certificates, CSC periodic inspection records, and ACC compliance.

How is ISO tank documentation different from dry container inspection? ▲

ISO tank containers and dry containers share the same ISO 6346 identification format — BIC-registered owner code, serial number, and check digit — but tank documentation covers inspection points that dry containers do not carry: valves, fittings, manhole covers, gaskets, bottom outlets, pressure relief devices, and the CSC certification plate. ISO tanks must also support specific certificate workflows including cleaning certificates, last cargo declarations, gas-free certificates, and CSC periodic inspection records. ConPDS provides the photo evidence layer for each of these points, linked to the ISO 6346-validated tank number.

Does ConPDS replace our tank management ERP platform? ▲

No. ConPDS is the structured photo evidence layer, not a tank management ERP. It does not replace specialist systems used for fleet management, lease administration, or cargo scheduling. ConPDS integrates alongside them via REST API, FTP, SFTP, and email — delivering the photo documentation they do not produce and linking every image to the tank number for cross-system traceability.

Can ConPDS support ISO tank cleaning certificate workflows? ▲

Yes. A full post-cleaning photo set — exterior, interior, valves, and manhole area — can be downloaded from the ConPDS dashboard and attached to the cleaning certificate, or distributed automatically to the relevant recipient. ConPDS provides the photo evidence layer that supports the certificate workflow without replacing the certificate itself.

Is ISO tank photo documentation GDPR compliant? ▲

Yes. All tank inspection photos are encrypted on-device and during upload using 256-bit HTTPS. Role-based access controls ensure only authorised personnel can view or download records, and no tank documentation lives on personal devices or in unsecured messaging apps.

Does the ISO tank documentation system work offline? ▲

Yes. ConPDS Checker runs fully offline — all core functions including AI-powered tank number reading operate on-device without a network connection. Photos captured in the depot yard or at the wash rack sync automatically once connectivity is restored.

Can tank inspection photo records be shared with shipping lines and leasing companies? ▲

Yes. The ConPDS guest portal gives authorised external parties a secure, simplified login scoped only to the tank records they have been granted permission to view. Full photo sets can also be distributed automatically via email, FTP, or SFTP as soon as the inspection or cleaning process is complete.

Give Every ISO Tank a Structured Photo Record

Every undocumented tank inspection, cleaning cycle, or repair leaves a gap in your evidence — one that a dispute, warranty claim, or ACC audit could turn into real cost. Structured tank inspection photo records close that gap without replacing the tank management platforms already in place.

Without structured ISO tank documentation

✗ Cleaning certificate stands alone: Shipping lines dispute cleaning quality weeks after service — a certificate without a post-cleaning photo set cannot resolve the claim.

✗ No pre-service baseline: Valve, gasket, or structural damage found after service is attributed to the depot with no photographic evidence to contest liability.

✗ Repair claims lack evidence: Valve replacements and structural repairs go unphotographed — warranty claims and leasing company recoveries are challenged or denied.

✗ CSC and ACC audit exposure: Periodic inspection records cannot be backed by verifiable, timestamped photos of the actual inspection points and plate markings.

✗ Manual retrieval failure: At 40+ tanks per day, locating a specific tank's post-cleaning photos from four weeks ago in shared folders is operationally unworkable.