I. Particle size analyzer that uses the technique of laser diffraction to measure particle size distributions from 10nm up to 3.2mm.

II. Suitable for suspensions, emulsions, dry powders

III. Principle: Laser light scattering
Analysis: Mie and Fraunhofer scattering

I. The measurement principle should be laser diffraction, and should comply with the guidance provided by ISO13320:2009.

II. Must be able to measure from 0.1 - 3200 microns using a single lens range

III. Measurements must be carried out in a single measurement cell.

IV. The detector system must include at least 60 detector channels for each lens range.

V. The detection system should come with photo-diode array consisting of a diodes for side and backscatter detection elements or better.

VI. Measurement of the scattering intensity at each detector must occur simultaneously across the detector angular range.

VII. The measurement acquisition rate must be 10kHz or higher.

VIII. The power of any light source included in the product must be greater than 3.5mW

IX. The optical bench should check alignment of the detectors prior to each measurement and, if required, the alignment should be automatically adjusted.

X. It must be possible for the user to change dispersion units easily. When this is done, the software must automatically detect which dispersion unit is in use and also realign the system within 60 sec.

XI. The measurement cell windows must be removable and easily cleaned and/or replaced by the user.

XII. The system must be accurate to better than approximately 0.6%, as demonstrated based on the measurement on monomodal, NIST traceable standards.

I. The software controls the system during the measurement process, analyzing scattering data to calculate a particle size distribution. Must be able to customize reports, allowing the display of different parameters, graphs and tables within the software as well as on print-outs.

II. Must be able to specify the display of different result graphs (scattering data, analysis residuals, size frequency plots, undersize / oversize plots) for use both on-screen and in reports.

III. Users must be able to define their own size distribution parameters for inclusion on any screen views or reports.

IV. The software must be able to be operated using Windows 10 (64 bit) or Windows 11 Pro

V. All of the parameters associated with a method should be stored as part of the measurement record. These parameters should be able to be accessed post-measurement in order to verify the measurement conditions

VI. A comprehensive help system must be available in order to describe the function of each software function and also provide advice as to how the instrument may be configured for different applications.

VII. Measurement sequences should be able to be stored for easy recall.

VIII. It must be possible to export data to other programs via drag and drop, ASCII (tab-delimited or CSV format) files.

IX. During the measurement process, the software must provide the user with a live update showing the current scattering data and the calculated results.

X. The software must support operation within a 21CFR Part 11 compliant facility.

XI. The software must provide a measurement mode where the dispersion conditions can be changed during a measurement and the changes in particle size observed in real-time.

XII. System use statistics are logged in the software, and can be reviewed by users or support personnel.

XIII. Expert advice is provided on the quality of the measurement data and calculated results.

XIV. Measurement and method guidance is provided in text and video form from within the software.

XV. The software should be able to automatically detect which type of dispersion unit is connected to the optical bench.

I. Wet sample dispersion unit must be provided with an appropriate sample tank for analysis of small quantity sample as to ensure minimal use of dispersant. A sample tank with less volume to be used is highly preferred.

II. The pump and stirrer settings must be adjustable that enables users to set different speeds based on the sample.

A ) Kindly specify if the speed control of stirring can be adjusted manually or automatically through PC settings.

III. Should come with high chemical compatibility, allowing the use of dispersants other than water, thus broadening its range of applications.

IV. Must use a centrifugal pump to deliver the sample to the measurement cell.

V. Standard Auto-Locking Wet Measurement Cell Cassette for the particle size analyzer system.

A ) A unique window locking mechanism enables rapid cleaning of the cell following measurements, without the need for additional tools.

B ) The cell type is automatically recognised by the software when the cell is placed into the optical bench

I. Automated Dry Powder Dispersion System, designed to achieve the reproducible dispersion of both fragile and robust powder samples over a wide size range. Includes a vibrating sample feed system, for precise sample delivery, along with the interchangeable venturi disperser geometries, which can be selected and configured according to the specific requirements of any application.

II. Polydisperse reference materials meeting the requirements of ISO13320:2009 / USP 429 must be available from the manufacturer in order to test the function of any dry dispersion unit.

III. Automatic software control of the dispersive air pressure and sample feed rate must be provided.

IV. Direct software control of dispersive air pressure (must be able to be set over a range of at least 0bar to 4bar to a precision of 0.1bar), sample feed rate, vacuum sample collection and clean sequences is provided.

V. The feed rate must be able to be set to different levels between the minimum and maximum rates.

VI. The software should be able to automatically detect which feed tray is in use.

VII. The measurement time must able to adjust automatically and manually to reduce sample volume required; the measurement time able to adjust less than 10 seconds or better.

VIII. Real-time monitoring of the dispersion unit performance and the measurement process must occur, such that users can compare the demanded measurement parameters with those actually achieved during a measurement.

IX. System must automatically detect if the vacuum cleaner is working.

X. Standard Auto-Locking Dry Measurement Cell Cassette for the particle size analyzer system.

A ) The cell type is automatically recognised by the software when the cell is placed into the optical bench.

B ) Includes a unique window locking mechanism enables rapid cleaning of the cell following measurements, without the need for additional tools. A filtered sheath air system ensures sample deposition on the windows is minimised during measurements. The measurement zone within the cell is enclosed, so as to reduce sample exposure to the user.

I. One (1) unit Compressor with suitable horsepower that is compatible with the Dry Dispersion system and the unit shall come with valid JKKP certification, if applicable.

A ) Please provide a feedback if the supplied compressor requires a regulator's certification.

II. One (1) unit Vacuum Collector that is compatible for Dry Dispersion system.

A ) powerful dust extractor, small, lightweight and ideal for those that need a highly portable machine that is powerful enough for source extraction and general cleaning. With its low weight, it is easy to carry onto the job site and can be easily stored or rolled under a workbench.

III. One (1) unit of uninterruptible power supply (UPS) with appropriate apparent power of at least 3 kVA.

A ) Please provide a feedback on the power of UPS that will be supplied.