
Claude Skills by ashfordeOU
github.com/ashfordeOUVerify a delivered lot of threaded fasteners at goods-in: the paperwork it arrived with, the head marking it carries, the dimensions of a drawn sample, and whether a sample mechanical re-test is owed before the lot is released to stores. Use when a fastener delivery has landed and someone has to give it a disposition: size the sample from the lot and the inspection level, list the certificates the criticality demands, read the marking against the ordered property class, judge every measured f...
Determine whether a threaded fastener application owes shear testing, fatigue testing or both, size the shear allowable from the loaded plane, and judge the results that come back. Use when a joint is shear loaded or cyclically loaded and someone has to say what testing the application calls for and whether the lot passed: pick the plane the shear actually crosses, count single against double shear, derive the allowable from the property class, then score each fatigue specimen as a failure, a...
Assess whether a threaded-fastener manufacturer may be qualified as a source under the ECSS procurement clause, on demonstrated capability and on audit. Use when ECSS-Q-ST-70-46C requires a supplier decision rather than a lot decision: reduce each qualification-lot characteristic to a capability index from its own sample statistics, let the weakest characteristic govern, weight the audit findings into a demerit total, mark any severity that blocks on its own, age the audit against its validit...
Evaluate whether a stored threaded fastener lot may still be issued, and what its protection is actually worth. Use when parts have been in stores for a while and someone must decide between releasing, re-inspecting, re-preserving and quarantining them: set the shelf life from the corrosion protection and the store class, restart the clock from a package breach rather than pausing it, clamp a month-end expiry onto a real calendar day, check the store against its own temperature and humidity b...
Compute the proof load and the minimum ultimate tensile load a threaded fastener owes from its thread stress area and property class, then judge the measured results against them. Use when a fastener lot has been pulled on a tensile machine and someone has to say whether it passed: size the stress area from the nominal diameter and pitch, take the proof and ultimate stresses from the property class with its diameter split, check the permanent set left after the proof load, and separate a genu...
Determine how a threaded fastener's thread must be formed and when, then prove the geometry and the fatigue allowable that choice earns. Use when a drawing, a supplier substitution or a cost proposal turns on cutting a thread instead of rolling it: force a rolled thread at and above the class floor and on any fatigue duty, force rolling after heat treatment where the soak would relax the compressive root stress away, derive pitch diameter, minor diameter, rolling blank and the root-radius not...
Assess the visual and dimensional inspection of a procured threaded fastener lot against the criteria that lot owes. Use when fasteners are on the bench and someone must say whether a seam, lap, tool mark, pit or plating void is allowable and whether every measured feature sits inside its band: derive the basic thread height from the pitch, take the depth allowance for the zone the indication sits in, allow nothing at all in the thread root, head-to-shank fillet or bearing surface, reject a c...
Evaluate airborne particle counting results against a cleanroom class under ECSS-Q-ST-70-50C, which carries the air grading over to the ISO 14644-1 concentration limits: derive the permitted concentration for the class and considered size, convert counted particles and sampled volume into the same unit, confirm the counter resolves the channel, then grade every location and report the worst. Use when reviewing a cleanroom monitoring run, dispositioning a location over its limit, or checking a...
Design the airborne sampling strategy a cleanroom zone needs under ECSS-Q-ST-70-50C: size the sampling locations from the floor area or a supplied area table, derive the smallest single-sample volume that still collects a statistically useful particle count at the class limit, convert it into a duration at the counter flow rate, and total the air drawn and the occupancy time. Use when planning a monitoring run, defending a sample duration, or checking whether a high-flow counter has shortened...
Determine whether a spacecraft item or a cleanroom zone owes particle contamination monitoring under ECSS-Q-ST-70-50C, and which of the three modes it owes: read the airborne obligation from the zone, the fallout obligation from the open exposed area and its duration, and the tape-lift obligation from a stated surface cleanliness level, then return the objective each mode answers. Use when scoping a contamination control plan, arguing that a bagged unit sits outside the monitoring scope, or c...
Determine which particle cleanliness level a hardware item or facility may be released against under ECSS-Q-ST-70-50C. Use when a size-resolved particle count per unit area has been obtained, the programme names a product cleanliness level or a facility class, and the counts must be graded against the whole level curve rather than one convenient size. Evaluates the allowance at every counted channel, scales it from the reference area onto the area inspected, finds the smallest level envelopin...
Coordinate the airborne particle qualification of a cleanroom that hosts contamination-monitored flight hardware, sizing the ISO 14644-1 sample plan and the ISO 14644-2 re-qualification interval before the room is accepted. Use when a room of known floor area must be qualified to a target class at one or more reference particle sizes, and the sample location count, single-sample volume, sampling time and interval all have to be fixed and then graded against what the counter actually delivered...
Analyze a recorded series of cleanliness monitoring results against its alert and action levels under ECSS-Q-ST-70-50C. Use when a monitoring location holds a time-ordered record, the programme has set an action limit with a derived alert level, and the question is whether the location is drifting toward that limit rather than merely conforming today. Computes the record mean and sample spread, fits a least-squares drift, projects the days remaining until the fit reaches the action limit, cou...
Verify that a particle counter or sizing microscope is under control before its cleanliness monitoring data is accepted under ECSS-Q-ST-70-50C. Use when an instrument carries a calibration record, a measured sample flow against its nominal, a counting-efficiency check at the smallest reported channel and a filtered zero run, and the monitoring result depends on all of them holding at once. Computes the concentration bias a flow deviation injects, grades calibration currency in days with a rec...
Assess a cleanliness limit exceedance and decide the disposition it owes under ECSS-Q-ST-70-50C. Use when a monitoring or verification result has come back above its action limit, the affected hardware carries a sensitivity category and a known exposure, and the exceedance has to become an impact statement, a corrective action and a re-verification rather than a note in a log. Computes the exceedance ratio and the quantity the exposure deposited, categorizes severity from ratio and sensitivit...
Convert particle contamination monitoring results into the surface cleanliness verification evidence a programme owes under ECSS-Q-ST-70-01C. Use when witness plates or fallout monitors have been read over a monitoring period and those readings must become an end-of-exposure percentage area coverage compared with the declared cleanliness level. Projects the measured fallout rate over the remaining exposure, sums the per-size-bin obscuration, holds a requirement reference size coarser than the...
Produce the particle contamination monitoring plan a project owes under ECSS-Q-ST-70-50C: size the sampling locations of each zone from its floor area, set the revisit interval of airborne counting, witness-plate fallout and tape-lift sampling from the criticality of the work done there, count the occurrences across the campaign and total the samples committed. Use when writing or reviewing a contamination control plan, defending a sampling frequency, or sizing the monitoring workload of an i...
Audit a cleanliness monitoring report package against the reporting obligations the programme imposed under ECSS-Q-ST-70-50C. Use when a reporting period has closed, the programme names the content items, the submission turnaround and the monitoring locations, and the package must be shown complete before its results feed a contamination budget. Merges the reported monitoring intervals to measure how much of the period was actually covered, locates every unmonitored gap and double-counted str...
Evaluate particulate fallout onto a surface from witness-plate data under ECSS-Q-ST-70-50C: convert the counted particles per size band into obscured area, express it as percent area coverage of the plate, subtract an identically handled control plate, divide by the exposure for a deposition rate, then project that rate onto the real hardware exposure and grade it against the allowance. Use when reading a fallout plate result, projecting deposition across an integration campaign, or checking ...
Assess a tape-lift surface sample under ECSS-Q-ST-70-50C and grade the surface it came from: subtract a blank lift, correct the counted size bands for the tape recovery efficiency on that finish, accumulate the bands from the largest downwards, scale the lifted area onto the reference area a cleanliness level is stated over, then grade each band and report the governing one. Use when reading a tape-lift count sheet, defending a recovery correction, or checking whether a lifted patch was large...
Compute the surface loading a vacuum-probe or solvent-rinse cleanliness sample actually reports under ECSS-Q-ST-70-50C. Use when hardware surfaces have been sampled for monitoring, each sample carries a witness blank and a sampled area, and the record is either an evaporated rinsate aliquot or a probe stroke pattern. Scales the aliquot back to the whole collected volume, subtracts the blank, divides out the collection recovery of the method, turns a stroke pattern into the area it truly swept...
Determine whether an item passes the acceptance criteria its own material or hardware category carries, in the acceptance clauses of ECSS-Q-ST-70-53C. Use when a sterilization-compatibility exposure is finished and a per-item accept, accept-with-deviation or reject decision has to be written down. Selects the criteria set from the declared category instead of a blanket default, refuses a category the table does not carry, applies each criterion in its own direction, resolves a mixed assembly ...
Determine which sterilization processes a flight item may be exposed to and what compatibility evidence each one owes, before any test is written. Use when a bill of materials carrying declared temperature, dose, oxidiser and moisture capabilities meets a register of candidate processes - dry heat, ionising radiation, ethylene oxide, vapour-phase hydrogen peroxide - and the campaign scope has to be fixed. Compares every material against each process stressor, marks a pairing admissible by ana...
Evaluate what a sterilization process did to the cleanliness of the hardware it was run on, in the evaluation clauses of ECSS-Q-ST-70-53C. Use when particle counts and non-volatile-residue figures exist for the same surface before and after exposure and the cleanliness budget has to be defended. Converts a particle size distribution into an obscuration percentage over the sampled area, places that figure in the tightest cleanliness band it satisfies, compares the band against the required one...
Verify that an assembly still works after a sterilization-compatibility exposure, in the evaluation clauses of ECSS-Q-ST-70-53C. Use when post-exposure functional measurements exist and someone has to state whether the hardware's functions survived the process. Grades every parameter against its own one-sided or two-sided window, absorbs the instrument resolution at the bound instead of widening it, treats a repeated-actuation series as intermittent when any single actuation leaves the window...
Support the planetary-protection case a sterilization-compatibility test has to serve, across the ECSS-Q-ST-70-53C interface to the microbial-reduction standards ECSS-Q-ST-70-56C and ECSS-Q-ST-70-57C. Use when a bioburden allocation has to be met by a process the hardware is only qualified to survive inside a known envelope. Corrects the reference decimal-reduction time to the temperature or the sterilant concentration actually used, converts the exposure into a log reduction and a surviving ...
Assess the property degradation a sterilization-compatibility exposure leaves behind, in the evaluation clauses of ECSS-Q-ST-70-53C. Use when pre-exposure and post-exposure measurements exist and someone has to say whether the material still meets its mechanical, physical and functional requirements. Forms each property's relative change against its own baseline, applies that property's limit in its own direction (loss-limited, gain-limited or two-sided), absorbs the measurement resolution at...
Define the representative specimen set a sterilization compatibility campaign is run on, so the tested coupons stand for the flight hardware rather than for whatever was on the shelf. Use when a bill of materials and a pool of candidate coupons and hardware specimens must be reduced to a defensible test set carrying replicates and unexposed controls. Covers every material family, picks the least-margin specimen per family against the dominant stressor of the process, sets aside a coupon whose...
Compute what a sterilization exposure campaign actually delivered to its specimens, cycle by cycle, out of the logged time-temperature and dose-rate records. Use when specimens have been through repeated dry-heat, radiation or chemical cycles and each cycle must be shown to have met its defined set-point window before the accumulated exposure is credited to the qualification. Integrates dwell above the set-point with the ramp excluded, forms the thermal lethality equivalent at the reference t...
Document the cycles, degradation data and conclusion of an ECSS-Q-ST-70-53C sterilization-compatibility test, or grade a report already issued. Use when an exposure campaign is finished and the record has to stand on its own for a reviewer who was not there. Checks identification down to batch and process, matches the logged cycles against the planned count, catches a gap or a repeat in the cycle numbering, grades each achieved parameter against its window, pairs an out-of-window value with a...
Derive the worst-case cycle a sterilization compatibility test has to be run at, out of the nominal process recipe, its tolerances, the number of cycles the hardware may see and the over-test factor the programme applies. Use when a dry-heat, radiation or chemical process has a nominal recipe and the test level must be fixed before specimens are committed to the chamber. Pushes each parameter along its declared severity direction, scales the cumulative parameters by the cycle count and the ov...
Determine whether a flight hardware item owes ultracleaning rather than the standard cleaning route under ECSS-Q-ST-70-54C, and what the ultraclean state has to achieve: read the driving function and the exposure of the item, turn the particulate and residue allowances into a required surface cleanliness level and a lettered residue class, compare each against the standard baseline, and return the objective as particulate-driven, molecular-driven or both with the verification that objective i...
Evaluate the candidate ultracleaning routes for one part under ECSS-Q-ST-70-54C — precision solvent by wipe or immersion, aqueous detergent with ultrasonic agitation, carbon-dioxide snow, plasma and ultraviolet-ozone — and rank the survivors: screen each route on substrate compatibility, on the geometry its transport mechanism actually reaches, on whether it removes the contaminant present at all, and on the particulate level and residue allowance it can hold, then score removal effectiveness...
Execute an ultracleaning process to ECSS-Q-ST-70-54C and prove the sequence closes: order the steps so coarse removal precedes precision work and a rinse follows every chemical step, size the rinse cascade from the carryover fraction so the retained liquor reaches its target concentration, confirm the drying method reaches the geometry and clears the volatility of the fluid present, and refuse a wet part to inspection or to a bag. Use when running or reviewing a precision cleaning sequence on...
Assess whether the controls around cleaned hardware hold the state it left the process in, under ECSS-Q-ST-70-54C: take the cleanroom class, the unidirectional flow, the surface orientation, the glove regime and the bagging over each handling, storage and transport period, estimate the particles that fall out and the residue that transfers, degrade the achieved level by them, grade the result against the requirement, and name the single control that buys back most of any shortfall. Use when h...
Verify that a solvent or cleaning agent is fit for ultracleaning under ECSS-Q-ST-70-54C before it touches flight hardware: check the batch certificate actually supports the declared purity grade, convert the residue-on-evaporation into the residue the agent will leave per unit area from the drained volume and the wetted area, grade that against the surface allowance, and refuse a pairing the substrate cannot take. Use when qualifying a solvent batch, a detergent or a rinse fluid for precision...
Plan the ultracleaning of a hardware set to ECSS-Q-ST-70-54C: assign one qualified process per item, the gentlest that reaches the level it owes and that its material tolerates, place each process against the assembly and integration sequence, insert a verification point wherever a level is claimed, and return the plan with its coverage findings — an item no process reaches, a claim with nothing measuring it, and a cleaning step a later contaminating operation undoes. Use when writing or revi...
Audit a build record for the evidence an additively manufactured part has to carry years after the machine was re-tooled. Use when a build is closed out under ECSS-Q-ST-70-80C records: check every field the part class owes, separate a field nobody filled in from one filled in with nothing, work the powder blend into a virgin mass share and a reuse generation and hold both against the class limits, resolve each inspection, coupon and post-process reference against a retrievable document, and r...
Validate a powder-bed build file and its job before the platform is committed. Use when a nested job is released, or re-released after an engineering change, and the configuration has to be proved rather than trusted: check the build-file version, digest and parameter set are the approved ones, bind every nested part to the released design index, project each footprint through its platform rotation to prove the nest sits inside the usable envelope with its edge margin and part-to-part clearan...
Assess whether a build lot or first article still stands on its qualification, and whether the witness coupons support the allowable the design uses. Use when a lot of additively manufactured parts is presented under ECSS-Q-ST-70-80C qualification: sort every declared change against the configuration baseline into no impact, a delta needing fresh evidence, or a break that reruns the qualification, then take the mean, the spread and a one-sided tolerance bound from the coupons built alongside ...
Execute a powder-bed build under control, from platform preparation to the last layer. Use when a job is about to start, or has finished and needs a disposition: grade every start-up check against its declared limit, block the start when one is out of limit or simply never recorded, then walk the monitored channels layer by layer, separate a single layer outside a band from a run of consecutive layers that means the process left control, measure how much of the build was monitored at all, cou...
Assess the density and porosity of additively manufactured material against its acceptance limits. Use when a build has to be graded on soundness rather than on strength: turn the dry and suspended weighings into a bulk density, express it against the reference alloy density and read the porosity from it, grade the largest pore against whichever of the drawing limit and the wall-fraction limit is smaller, refuse a tomography scan that resolves coarser than the limit it grades, compare buoyanc...
Evaluate whether a dimensional inspection can actually decide the features it measures on an additively manufactured part. Use when a first article opens a part number, or a production lot is measured, under ECSS-Q-ST-70-80C inspection: combine repeatability and reproducibility into an expanded uncertainty, take its share of the tolerance band, pull the acceptance limits in by a guard band, sort each reading into conforming, indeterminate or non-conforming, then let demonstrated centred capab...
Verify a post-build heat-treatment route against the declared material recipe. Use when a stress-relief, solution, quench or ageing step has to be graded before an additively manufactured part is released: take the dwell from the coldest load thermocouple rather than the set point, break the soak on an overshoot as well as a shortfall, grade the approach ramp and the protective atmosphere, hold the quench transfer inside its window, confirm stress relief ran before the part left the build pla...
Monitor the process parameters of a metallic powder bed fusion build and assess the build data log under ECSS-Q-ST-70-80C: find every contiguous excursion outside a control window, compute its duration and worst deviation, attribute it to the layers it sits under, compare the sampling interval, largest gap and coverage against the logging requirement, name the required channels that never reached the record, and close with a per-parameter and a whole-build verdict. Use when a build log is rev...
Determine the qualification status of a metallic powder bed fusion machine under ECSS-Q-ST-70-80C: grade every calibrated item against its own interval and count the days overdue, compare the chamber environment — residual oxygen, dew point and leak rate — against its control limits, compute witness-build capability from the specimen mean, sample spread and a capability index, and close with a verdict tied to the machine, material, layer-thickness and parameter-set envelope it was earned on. ...
Calculate the machining stock an as-built surface needs and grade the declared allowance against it. Use when a post-process plan for an additively manufactured part has to be sized: add the as-built valley depth, the partly fused near-surface layer, the distortion on release, the fixture datum uncertainty and a real minimum depth of cut, compare that with the stock left on the model, take machining and finishing off every machined side and check the wall that remains, confirm the finishing p...
Verify the mechanical properties of an additive build or batch from its witness coupons. Use when a coupon population has to carry the batch: keep only coupons from the same build plate and the same furnace lot and name every one excluded, check that the population samples the build direction and not just the in-plane orientations, grade each coupon against the minimum rather than the population mean, report count, mean, extremes and spread per property, form the ratio of the weakest orientat...
Determine the non-destructive inspection suite an additively manufactured part needs, and whether the declared setup can actually find the flaw that matters. Use when a build is released against ECSS-Q-ST-70-80C inspection and the ECSS-Q-ST-70-15C method set: size the tomography voxel from the cone-beam geometry, take the ultrasonic resolution from the wavelength, grow the radiographic limit with the flaw tilt, strike out methods a rough as-built surface or an enclosed channel defeats, then c...
Develop powder-bed build parameters for one material from a density-optimisation campaign. Use when a trial matrix of coupons has been run and the parameter set to release has to be chosen and defended: form the volumetric energy density of every trial, convert coupon density into relative density and porosity, group each trial as lack-of-fusion, stable or keyhole against the declared energy band, keep the densest stable trial meeting the target and break ties towards the lower energy, then r...