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PQ Check Standard, USP <788> Microscopic Method Membrane Qualification Std.
061M
PQ Check Standard, USP <788> Microscopic Method Membrane Qualification Standard
- 25 mm, 0.8 µm pore size MCE membrane, grey, gridded or non-gridded
- Standard material: NIST traceable size Polystyrene latex (PSL) spheres
- Nominal sizes and concentrations of standard particles:
- 10 µm PSL – 300 particles per membrane
- 25 µm PSL – 30 particles per membrane
- Above concentrations are nominal; the Certificate of Analysis included with each membrane will show MML certified concentrations
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50 µm Particle Count and Size Standard
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Particle Count and Size Standard
- Volume: 1 L HDPE Bottle
- Standard material: NIST traceable size Polystyrene latex (PSL) spheres
- Nominal sizes and concentrations of standard particles
- Product batch will be ± 10% of the nominal concentration; individual standard bottles will be certified ± 15% of the mean concentration and particle sizes are certified ± 5% of the standard size (± uncertainty)
- The Certificate of Analysis includes actual concentration testing data and mean size
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PQ Check Standard, Tri-Mix for PSS Accusizer™ Syringe Sampler (SIS) Configuration
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061C-0250 (250mL) & 061C-0500 (500 mL)
PQ Check Standard, Tri-Mix for PSS Accusizer™ Syringe Sampler (SIS) Configuration
- Tri-modal PQ check standard designed to verify size and count accuracy of the Particle Sizing Systems (PSS) Accusizer model 780 SPOS instrument in the Syringe Injection Sampler (SIS) configuration
- Standard material: NIST traceable size Polystyrene latex (PSL) spheres
- Nominal sizes and concentrations of standard particles:
- 0.8 µm PSL – 3,500 particles/mL
- 2 µm PSL – 800 particles/mL
- 5 µm PSL – 200 particles/mL
- Product batch will be ± 10% of the nominal concentration; individual standard bottles will be certified ± 15% of the mean concentration and particle sizes are certified ± 5% of the standard size (± uncertainty)
- The Certificate of Analysis includes actual concentration testing data and mean size
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PQ Check Standard, 0.7 µm Single-Mode Peak, Polystyrene Latex (PSL) Beads