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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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PQ Check Standard, 5 & 10 µm Bi-Mix, USP <729 > Method 2 without Automatic Dilution
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PQ Check Standard, 5 & 10 µm Bi-Mix, USP <729 > Method 2, AD/APS
Select options This product has multiple variants. The options may be chosen on the product pagePQ Check Standard, 5 & 10 µm Bi-Mix, USP <729 > Method 2, AD/APS
061UF-0125 & 061UF-0250 & 061UF-0500
PQ Check Standard, 5 & 10 µm Bi-Mix, USP <729 > Method 2 with Automatic Dilution
- Designed specifically with USP <729> requirements in mind, prior to executing the “”Method 2″” SPOS PFAT-5 test, this standard is used to verify the performance of a Single Particle Optical Sensing (SPOS) particle counter equipped with an automatic dilution system.
- Standard material: NIST traceable size Polystyrene latex (PSL) spheres.
- Nominal sizes and concentrations of standard particles:
- 5 µm PSL – 400,000 particles/mL
- 10 µm PSL – 200,000 particles/mL
- Product batch will be ± 10% of the nominal concentration; individual standard bottles will be certified ± 22% 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.
