56 buying guides and configuration comparisons across all five engineering verticals. Download an editable RFQ checklist; no email needed.
Solar EPC & street lighting RFQ checklist (TXT)
For a Bangladeshi factory the choice between on-grid, hybrid and off-grid is not a question of which technology is better. It follows directly from what the site is trying to achieve: the lowest cost per unit of energy, continuity of production through an outage, or power where there is no grid at all. Each configuration is the correct answer to one of those, and the wrong answer to the others.
Ten questions to put to any solar EPC contractor in Bangladesh before signing, the answers that should worry you, the red flags in a quotation, and the handover documents a serious contractor produces at commissioning.
Find the official Bangladesh net-metering application portal, identify your utility and prepare the account, site and engineering information for submission.
How quarterly net-metering credit, direct consumption and AC capacity limits shape a Bangladesh rooftop solar financial model.
A practical guide to site-specific solar ROI: measured demand, generation assumptions, current costs, utility approval, warranties and downside scenarios.
Specify maintained lighting, seasonal charging, battery duty, pole foundations and maintenance responsibilities before buying solar street lights.
What actually degrades a rooftop solar plant in Bangladesh, how often to clean and with what water, how to read string-level data, and the scope an annual maintenance contract should contain before you sign it.
What a survey of a corrugated shed roof has to measure before anyone quotes a kilowatt figure: purlin section and spacing, real sheet thickness, corrosion, existing services load, and who signs the report.
Scientific & laboratory RFQ checklist (TXT)
Start an SEM specification with representative samples and the measurements you need from them. Resolution must be considered alongside accelerating voltage, sample preparation, chamber and stage limits, detectors, throughput and operator experience. A demonstration using relevant samples helps establish whether a proposed configuration meets your work before you commit to it.
Start by establishing whether Raman can answer the chemical or structural question for your samples. Then compare excitation wavelength, spectral and spatial performance, sample access, mapping speed and software workflow. A research microscope, a fibre-coupled analyser and a dedicated imaging system can serve different tasks; representative-sample measurements help identify a suitable configuration.
Compare laboratory freeze dryers by sample chemistry, batch load, chamber format, vacuum pump and acceptance requirements. Includes BIOBASE and Infitek examples.
Specify corrosion-test method, specimen loading, chamber capacity, utilities and acceptance checks before requesting a salt-spray chamber quotation in Bangladesh.
Choose a UV-Vis spectrophotometer by method, sample format, optical performance and software. Compare catalogue examples and prepare an itemised laboratory quotation.
Plan an ELISA reader and washer purchase around assay requirements, plate format, wavelength filters, washing configuration and reporting. Compare BIOBASE and Infitek examples.
Build a complete laboratory equipment list: compare model variants, accessories, utilities, consumables and quotation scope before ordering BIOBASE or Infitek instruments.
Compare BIOBASE and Infitek cold storage by sample requirements, usable capacity, monitoring, room conditions and power-failure planning.
Compare laser diffraction, dynamic light scattering and image analysis, then prepare a useful Microtrac or laboratory instrument enquiry with sample and method requirements.
The instrument is the part of an electrochemistry bench that gets specified. The cell, the reference electrode and the polishing kit are the parts that decide whether the data is worth keeping.
The shape of the heated volume, how the sample gets in and what the walls are made of decide more than the gas ever will. A working guide to picking the furnace body you cannot change later.
Biological, metallurgical and stereo microscopes are three instruments, not three price points. How to read what is engraved on an objective, why illumination decides more than magnification, and what one monsoon does to optics stored wrong.
What the water grades actually mean, which instrument needs which, why your feed water analysis decides the running cost, and the storage and stagnation problems that ruin the first week back after a long closure.
Choose a clean bench, biosafety cabinet or chemical fume hood from the actual hazard, protection needed, exhaust arrangement and field-verification requirements.
A selection guide for laboratory and industrial exhaust treatment. How to decide between wet, dry and thermal scrubbing, size the unit to your real gas load, and prove it is still working a year after handover.
Compare OXYMAT oxygen generator configurations for hatchery, broodstock and fish-farm applications. Prepare a brief covering demand, pressure, utilities and backup.
Match a nitrogen generator to the instrument’s gas requirements. Compare BIOBASE and Infitek configurations, flow units, air supply, consumables and quotation scope.
Choose EDIBON teaching equipment by syllabus, experiments and student groups. Compare base units, modules, software, utilities and training in one equipment schedule.
Match a laser power meter or energy sensor to wavelength, CW or pulsed operation, beam size, damage limits and console compatibility before requesting a quotation.
Specify the fibre pair, cleaving arrangement, alignment needs and acceptance measurements before comparing fusion splicers for a university or industrial laboratory.
Nuclear medicine RFQ checklist (TXT)
Choose a gamma camera around the studies your department reports, the patients it sees and the room available. A compact small-field planar camera, a general-purpose SPECT system and a dedicated cardiac system answer different imaging requirements, but their applications can overlap. Use your clinical protocols, field-of-view needs, acquisition workload and physics team's acceptance criteria to build the shortlist.
Define intended use, workload, documentation and lifecycle support before comparing Eckert & Ziegler group irradiator models for a blood bank or research institution.
Compare dose calibrator constancy, accuracy, linearity and geometry tests: what each checks, how they differ and what to specify for equipment and support.
How to specify dose-rate and contamination monitoring functions, suitable detectors, calibration, pre-use checks and an approved workplace monitoring programme.
Select L-blocks, syringe shields and vial shields using radionuclide, activity, container geometry, visibility and safe working access.
Compare gamma-camera collimator requirements, camera compatibility, handling and quotation scope with the department's clinical and medical-physics team.
Match QA phantoms to the exact system and tests, establish the required baselines before clinical use, and add tools when new capabilities are commissioned.
Compare NU4 PET IQ, MicroPET PSF and MicroCT test objects for research scanners. Prepare a quotation brief around field of view, measurement purpose, accessories and documentation.
How to select mammography and tomosynthesis test objects for an approved quality-control programme, including image data, analysis, dose and periodic physics checks.
Medical equipment RFQ checklist (TXT)
Shortlist Perlove imaging equipment by workflow, room access, detector configuration, image sharing and service scope before requesting a comparable quotation.
Plan a PL300B purchase around imaging compatibility, operating-room access, software, instruments, consumables, training and written acceptance criteria.
Plan clinical analyser, histology and blood-bank equipment purchases around workload, consumables, site readiness and written acceptance requirements.
Compare chemistry analysers by test menu, peak workload, reagent compatibility, quality control, infrastructure and lifecycle cost.
Compare hospital-bed functions, dimensions, load ratings, mattresses, rails and current device documentation before requesting a configuration for your ward.
Calculate CSSD capacity from validated loads, complete cycle time, staffing and contingency; compare usable capacity and utility requirements.
Plan a digital-anatomy teaching room using the selected model’s dimensions, utilities, software package, delivery route, faculty objectives and confirmed support terms.
A procurement guide for ward-rounds and point-of-care computer carts: device fit, working height, battery duty, cleaning, clinical IT and acceptance checks.
Specify the microscope, beam splitter, camera adapter, display and recording workflow as one compatible configuration before requesting a quotation.
Specify blood-component storage and transport with qualified temperature performance, monitoring, alarms and a documented power-failure response.
Nanotechnology RFQ checklist (TXT)
Choose an AFM around the property you need to measure, the sample and the measurement environment. Surface topography, electrical response, force measurements and production metrology can need different probes, modes and accessories. Compare scan range, noise, sample access, optical integration and the evidence needed to accept the measurement; several configurations may fit.
How the electron source shapes resolution, running cost and daily uptime, and how to write an SEM tender that matches the research programme you actually have rather than the one on the brochure.
Compare SEM EDS/EDX detector compatibility, software, sample demonstrations and quotation scope before buying or upgrading a laboratory system in Bangladesh.
Compare AFM surface measurements with SEM imaging and EDS analysis. Define the sample demonstration, accessories and room requirements before choosing equipment.
Compare EBSD detectors by the crystallographic question, SEM geometry, pattern resolution, usable mapping speed and acceptance evidence, with Symmetry S3, C-Nano+ and C-Swift+ examples.
Physical and chemical etching, where anisotropy and selectivity trade against each other, why an inductively coupled source is added, and how to pick the right plasma etcher for the devices your group actually builds.
How to read a target certificate rather than the headline purity, why a bonded target fails when you raise the power, how much of a target you actually get to use, and what reactive sputtering control really depends on.
Compare thermal evaporation, electron-beam evaporation and sputtering against film materials, substrates, process control and installation requirements.
A procurement guide to permanent versus temporary bonding, alignment, wafer compatibility and acceptance tests, with SUSS SB8 Gen2 as a research-platform example.