Lock the circuit and delivery state
Tie the decision to one exact machine, hydraulic circuit, fluid fill, filter state, document baseline and acceptance stage.
G36
HYDRAULIC FLUID / CLEANLINESS + FILTRATION
An ISO 4406 code is not proof that the exact machine and hydraulic circuit meet a project-defined cleanliness requirement.
Build one machine-, circuit- and delivery-state-specific acceptance record from the controlled fluid and filter identities through the project target, sampling chain, selected method, instrument evidence, raw particle data, reported code, limitations, criterion and final disposition.
ANSWER FIRST
Accept the bounded sample-and-disposition record—not a code or filter label by itself.
A defensible decision keeps one exact machine, hydraulic circuit, fluid fill, filter state and delivery stage attached to the buyer's controlled target, sample chain, selected method, instrument and raw result. Architecture, pressure, utilities, interfaces, service, safety and complete FAT/SAT remain separate decisions.
Carry the fixed acceptance context into the RFQPublication boundary
No NEW ORIENTAL IMM hydraulic-fluid cleanliness code, oil, filter, monitor, laboratory, flushing capability, test result, compliance, certification, conformity or passed acceptance is claimed.
Unknown supplier evidence remains open. This route provides no default oil grade, ISO 4406 target, micron rating, beta ratio, pressure drop, sampling point, stabilization time, sample count, tolerance, change interval or pass/fail rule.
ONE OWNER / EIGHT ADJACENT DECISIONS
Keep fluid cleanliness inside one machine, circuit and delivery-state boundary.
Reuse the controlled machine and circuit identity across reviews, but do not let one particle code take ownership of architecture, pressure, maintenance, safety or complete acceptance.
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| Decision | Owns | Stays separate |
|---|---|---|
| Hydraulic-fluid cleanliness and filtration acceptance | One exact machine, identified hydraulic circuit and delivery state; fluid and filter identities; project-defined cleanliness target; controlled sampling and measurement evidence; reported code; limitations; criterion and signed disposition. | It does not prescribe the target, filter, fluid, sampling point or method and does not prove another circuit, fill, filter state, operating condition or machine result. |
| All-electric versus servo-hydraulic architecture | Drive architecture, axis package, simultaneous-motion requirements, utilities, maintenance model and the project fit of the proposed configuration. | A servo-hydraulic label or a maintenance checklist does not establish a fluid sample, ISO 4406 code, installed filter or accepted cleanliness result. |
| Injection, hydraulic and cavity-pressure definitions | Pressure location, term, force/area basis, injection-unit identity, cavity measurement and configured pressure/flow comparison evidence. | Hydraulic working pressure is not a particle-contamination result, required cleanliness level, filter rating or fluid-condition acceptance. |
| Utilities and installation | Site electrical, water, air, environmental, layout and connection requirements plus the responsible supply and installation boundaries. | Site utility readiness does not release the internal hydraulic circuit, fill condition, flushing record, sampling validity or cleanliness disposition. |
| Machine and auxiliary interfaces | Physical, hydraulic, electrical, functional, data, safety and access endpoints between the configured machine, mold and auxiliary equipment. | An agreed port, hose, coupling, pressure or flow endpoint does not prove fluid cleanliness, filter-element performance or circuit acceptance. |
| Complete FAT and SAT programme | The complete machine and installed-cell acceptance plan, methods, witnesses, observations, deviations, retest and final project authority. | This route supplies one bounded evidence package only; it does not replace the complete FAT/SAT programme or final machine/cell disposition. |
| Spare-parts and service handover | Controlled maintenance documents, replacement-part identities, consumables, service responsibilities, escalation paths and lifecycle handover. | A filter part number, service interval or maintenance handover does not establish the as-delivered oil state or a passed cleanliness result. |
| Polymer, screw and barrel path | Resin identity, melt-path hardware, wear/corrosion questions, moisture, regrind, polymer contamination and process-fit evidence. | Polymer contamination and hydraulic-fluid particulate contamination are different material paths, methods, evidence records and acceptance decisions. |
| Safety, conformity and CE documentation | Applicable safety requirements, proposed-product classification, technical-document evidence, instructions, conformity assessment and project actors. | ISO 4413 or ISO 20430 status does not establish an ISO 4406 target, a particle result, filter suitability, supplier conformity or passed acceptance. |
SOURCE STATUS / CLAIM LIMIT
Use each ISO record only for the question inside its scope.
Coding, target selection, sampling, bottle analysis, filter-element testing, hydraulic-system safety and project evidence remain separate rows.
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| Source | Public status | May inform | Cannot release |
|---|---|---|---|
| ISO 4406:2021 | Published coding method for expressing the quantity of solid particles in fluid used in a hydraulic fluid-power system. | The controlled reporting expression and the need to retain the underlying result with the exact fluid, circuit, sample and method record. | A universal injection-machine target, sampling plan, test method, filter specification, supplier result or pass/fail decision. |
| ISO 12669:2017 | Published method for determining the required cleanliness level of an individual operating hydraulic system. | A project-owned target-selection record linked to the system's individual requirements and an ISO 4406 expression where applicable. | One default target for every injection molding machine, circuit, component set, duty or delivery state. |
| ISO 4021:1992 | Published operating-system sampling standard whose current ISO stage is recorded as to be revised; a draft replacement remains separate. | The need for a controlled edition, representative sampling relationship, identified point and retained sampling conditions. | A default sample point, reservoir-sampling approval, flushing procedure, project method or result for a proposed machine. |
| ISO 11500:2022 | Published light-extinction automatic-particle-counting procedure for clear, homogeneous, single-phase hydraulic-fluid bottle samples within its scope; an amendment remains under development. | A selected laboratory-method row, sample-suitability record, instrument traceability and raw particle-count evidence when the project adopts it. | Sampling representativeness, an in-line monitor equivalence, a target code, laboratory capability, incorporated draft amendment or machine acceptance. |
| ISO 16889:2022 | Published multipass laboratory method for evaluating specified performance characteristics of hydraulic filter elements. | Controlled filter-element identity, datasheet/test-report provenance and the exact laboratory evidence proposed for the project review. | Installed-system cleanliness, filter fit, service life, change interval, machine reliability, supplier capability or a passed machine result. |
| ISO 4413:2010 | Published general-rules and safety-requirements standard for hydraulic fluid-power systems and components used on machinery. | A separate system, safety, maintenance and cleaning boundary when qualified project parties determine applicability. | A particle target, oil grade, filter rating, sampling method, cleanliness result, ISO 20430 result, conformity or certification. |
| Project-specific controlled evidence | Not supplied for a NEW ORIENTAL IMM machine, hydraulic circuit, fluid fill, filter state, sample or acceptance stage. | Only the exact documents, target source, configuration, sample chain, method, instruments, raw results, limitations and signed disposition received for the project. | Any missing oil, filter, monitor, laboratory, flushing, testing, calibration, result, capability, compliance or passed acceptance. |
FIXED RFQ CONTRACT / 18 FIELDS
Carry circuit, target, sample, result, filter evidence and disposition together.
Unknown entries remain open. No code, filter label, maintenance record, laboratory title or another circuit's result may silently fill them.
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| RFQ field | Record | Boundary |
|---|---|---|
| Exact machine, hydraulic circuit and configured supply boundary | Manufacturer, model, serial or project identity; circuit designation and function; reservoir, pump, valve, accumulator and relevant option identities; included machine and auxiliary boundaries. | A servo-hydraulic family label does not identify the sampled circuit, installed components or as-delivered configuration. |
| Controlled quotation, specification, schematic and parts-list revisions | Revision, date, owner and precedence for the quotation, hydraulic schematic, fluid specification, filter list, inspection plan and acceptance documents. | An undated brochure, generic schematic or superseded list cannot close the machine/circuit record. |
| Delivery, fill, commissioning and acceptance stage | Named factory, pre-shipment, delivery, post-installation, commissioning, FAT, SAT or other stage; fill/change state; exact decision owner and intended disposition. | A result at one stage does not automatically release a later fill, service intervention, installation state or acceptance stage. |
| Hydraulic-fluid identity, specification, source and lot | Controlled product name and specification; supplier and batch/lot where available; new, transferred or changed-fluid state; fill source and evidence owner. | This page specifies no oil grade, brand, viscosity, additive system, compatibility decision or approved substitute. |
| Reservoir, circuit, fill-volume and filter-state identity | Controlled reservoir/circuit identifiers, fill state, relevant component changes, filter assembly and element state and every boundary that may affect the sample. | A nominal reservoir volume or filter label does not establish circulating-fluid condition, sample validity or acceptance. |
| Project-defined cleanliness target, code and contractual source | Original target expression, ISO 4406 or other selected reporting basis, source document/revision, affected circuit/state and responsible technical approver. | ISO 4406 supplies a coding expression, not a universal target, tolerance, safety margin or pass/fail authority. |
| Selected standards, methods, editions and applicability | Controlled ISO 4406, ISO 12669, ISO 4021, ISO 11500, ISO 16889, supplier or project method editions, selected clauses and written applicability rationale. | Publication status does not make every document mandatory, interchangeable, fully reproduced here or implemented by a supplier. |
| Operating state, readiness, temperature and sampling timing | Approved machine/circuit state, readiness evidence, relevant temperature record, circulation or operating relationship, stabilization reference and deviations at sampling. | No operating mode, temperature, circulation duration, stabilization time, flushing sequence or sampling timing is prescribed. |
| Sample point, method, container, time and custody | Point and flow-path relationship; controlled method; container identity/status; timestamp; collector; sample ID; handling, transport, custody and laboratory receipt records. | The page selects no main-line, return-line, reservoir or other sample point and does not validate a container or custody procedure. |
| Instrument principle, identity, range and calibration traceability | Measurement principle; instrument manufacturer/model/serial; range and resolution where relevant; calibration or verification record, date, status and traceability owner. | An instrument name or calibration certificate title alone does not prove sample suitability, accuracy, method conformity or a machine result. |
| Raw particle-count data, validity and exclusions | Complete sample/run identity, raw particle-count output, channel or size basis, flags, dilution or other approved treatment, interruptions, exclusions and reviewer. | No particle count, size channel, dilution, exclusion, coincidence treatment or data-correction choice is prescribed. |
| Reported cleanliness code, result expression and source file | Original and reported code/expression, source data file, method and edition reference, report revision, reviewer, date and link to the exact sample/circuit state. | A code copied from a report or screen does not prove the target, method, sample relationship, filter performance or acceptance. |
| Repeat samples, uncertainty, limitations and non-transferability | Project-approved repeat/reference, result variation, uncertainty treatment where applicable, limitations and conditions that prevent comparison or transfer. | The page sets no sample count, interval, averaging rule, tolerance or transfer rule between circuits, fills, filters or operating states. |
| Filter assembly, element, datasheet and change-state identity | Assembly and element manufacturer/model/part/revision; installation location; bypass/indicator relationship where relevant; controlled datasheet/report and installation/change evidence. | No filter type, micron rating, beta ratio, bypass value, pressure-drop limit, compatibility or replacement interval is recommended. |
| Controlled filter-performance evidence and applicability | Exact laboratory report or supplier evidence, ISO 16889 or other selected basis, tested element identity, conditions, limitations, owner and written relationship to the proposed element. | Laboratory element data do not prove installed-system cleanliness, service life, machine reliability or performance in another condition. |
| Flushing, monitoring and corrective-action records | Only the project-approved flushing or monitoring plan/reference, actual timestamps and observations, filter/sample changes, deviations, corrective actions and retained source evidence. | This page gives no flushing method, monitor type, threshold, duration, sequence, completion rule, maintenance instruction or capability claim. |
| Buyer-owned criterion and responsible approver | Project-specific criterion, target source, affected circuit/state, rationale, responsible technical/commercial approver and decision date. | No cited ISO title supplies this project's target, tolerance, commercial remedy or acceptance authority by itself. |
| Witnesses, deviations, retest, disposition and change triggers | Witness identities, open actions, signed deviations, corrective action, retest rule, final disposition and fluid/filter/circuit/service changes that reopen the record. | A bounded result does not approve a changed fill, filter, circuit, machine, maintenance state, duty, installation or later sample. |
RELEASE SEQUENCE
Move from a copied code or filter label to a bounded disposition.
A missing circuit, target source, sample relationship, instrument, raw result or filter identity remains a hold point rather than an assumed pass.
Agree the target owner
Retain the project-defined cleanliness target, code expression, contractual source, applicability and responsible approver without inventing a default.
Control the sample chain
Record operating state, sample point, method, container, time, custody, instrument and calibration or verification evidence.
Retain raw and filter evidence
Keep raw particle data, reported code, limitations, filter identity, controlled element evidence and actual flushing or monitoring records together.
Limit the disposition
Accept, reject or hold only the named circuit and state. Keep reliability, life, response, energy, leaks, warranty, safety and complete FAT/SAT separate.
PRIMARY SOURCES / BOUNDARY
Use current official scope and status without transferring capability.
Reviewed 2 August 2026. ISO 4406 supplies a contamination-code expression; ISO 12669 addresses required-cleanliness-level selection; ISO 4021 addresses representative sampling and is recorded as to be revised; ISO 11500 addresses scoped bottle-sample particle counting; ISO 16889 addresses filter-element laboratory evidence; ISO 4413 remains general hydraulic-system and safety context. None proves a NEW ORIENTAL IMM oil, filter, monitor, laboratory, flushing, test, result, compliance, certification or accepted machine.
ISO 4406:2021 — Coding the Level of Solid-Particle Contamination
ISO's public record describes the code used to express quantities of solid particles in fluid used in a hydraulic fluid-power system.
Boundary: The code does not set one injection-machine target, sampling method, filter specification, supplier result or project pass/fail rule.
ISO 12669:2017 — Determining a Required Cleanliness Level
ISO's public scope describes a method for determining the required cleanliness level of an individual operating hydraulic system based on that system's requirements.
Boundary: It does not create a universal ISO 4406 target for every injection molding machine, circuit, component set or duty.
ISO 4021:1992 — Extracting Representative Samples from Operating-System Lines
The published record addresses representative extraction of fluid samples from operating hydraulic-system lines and currently records the edition as to be revised.
Boundary: Identify the controlled edition and project method. This page does not select a sample point or treat a draft replacement as published.
ISO 11500:2022 — Automatic Particle Counting by Light Extinction
The published scope covers automatic particle counting of clear, homogeneous, single-phase hydraulic-fluid bottle samples by the light-extinction principle.
Boundary: It does not prove sampling representativeness, laboratory capability, an in-line method, target code or acceptance. An amendment under development is not treated as incorporated.
ISO 16889:2022 — Multipass Filter-Element Performance Test
The published scope describes controlled multipass laboratory evidence for specified hydraulic-filter-element performance characteristics.
Boundary: Element laboratory data do not prove installed-system cleanliness, filter suitability, service life, machine reliability or acceptance.
ISO 4413:2010 — Hydraulic-System General Rules and Safety Requirements
ISO's current public record supplies a separate general hydraulic-system and safety scope for machinery systems and components.
Boundary: It does not set a particle target, oil grade, filter rating, sampling method, cleanliness result, conformity or certification for a proposed machine.
BUYER QUESTIONS
Hydraulic-fluid cleanliness and filtration acceptance FAQ
These answers keep coding, target selection, sampling, particle counting, filter-element testing, system safety, maintenance and whole-machine acceptance in separate evidence records.
01Does an ISO 4406 code prove hydraulic-fluid cleanliness acceptance?+
No. ISO 4406 provides a coding expression for solid-particle contamination. Acceptance still requires the exact machine and circuit, project-defined target and source, controlled sample chain, selected method, instrument evidence, raw result, limitations and responsible disposition.
02Does ISO 4406 set one target for every injection molding machine?+
No. The target remains circuit-, component-, duty-, delivery-state- and contract-specific. ISO 12669 provides a method context for determining a required cleanliness level from an individual hydraulic system's needs; this page publishes no target.
03Where should the hydraulic-fluid sample be taken?+
That must be selected in the controlled project method. ISO 4021 addresses representative sampling from operating-system lines, but this page does not choose a main-line, return-line, reservoir or other point and preserves the current edition's revision status.
04Does an ISO 11500 bottle-sample result prove the circulating system?+
Not by itself. The method scope, sample suitability, operating state, point, time, container, handling, custody and relationship to the exact circuit must remain auditable. The result also needs its separate target and disposition record.
05Does ISO 16889 filter-element data prove machine cleanliness?+
No. It is controlled laboratory evidence for a filter element within the method's scope. The installed assembly, exact element, flow and fluid conditions, bypass and indicator relationships, circuit state, sample evidence and project result remain separate.
06Does ISO 4413 prove the cleanliness result or filter selection?+
No. ISO 4413 supplies general hydraulic-system and safety requirements. It does not provide the project's particle target, filter rating, oil choice, sample result, supplier conformity, certification or acceptance.
07Can one result be transferred after oil, filter or circuit changes?+
Not automatically. Record change triggers for fluid fill, filter element, circuit components, maintenance, installation, flushing, sampling method, instrument, operating state and acceptance stage. Reopen the record when the approved project rule requires it.
08What should a buyer request before accepting the record?+
Request the exact machine/circuit/fill/filter identities, controlled documents, acceptance stage, target and source, selected editions, operating and sample state, custody, instrument traceability, raw particle data, reported code, limitations, filter evidence, actual flushing or monitoring record, criterion, witnesses, deviations, retest and final disposition.
HYDRAULIC CLEANLINESS / NEXT STEP
Send the target and sample record with the exact circuit and filter state.
Attach the machine/circuit/fluid/filter identities, controlled documents, acceptance stage, project target and source, selected methods, operating and sample state, custody and instrument records, raw data, reported code, limitations, controlled filter evidence, actual flushing or monitoring record, criterion, deviations, retest and final disposition. Keep architecture, pressure, utilities, service, safety and complete FAT/SAT in separate rows.
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