Cole Parmer USA Standard Test Sieve 3 in. Diameter Sizes 325, 400 Lot of 4 Sieves

Cole-Parmer USA Standard Stainless Steel Test Sieves, 3 in. Diameter (Mesh Sizes 325 and 400) – Pack of 4 Sieves

The Cole-Parmer USA Standard 3-Inch Diameter Ultra-Fine Test Sieve Set is a precision particle-sizing ensemble engineered for micro-particle separation, powder classification, and fine-grain quality control analysis. Manufactured in strict accordance with ASTM E11 and ISO 3310-1 standards, this lot contains four ultra-fine sieves featuring Mesh No. 325 (45 µm aperture) and Mesh No. 400 (38 µm aperture) configurations. Constructed with a full-height 304 stainless steel frame and precision-woven 304 stainless steel wire mesh cloth, these sieves provide outstanding dimensional accuracy, chemical resistance, and structural longevity. Designed specifically for low-mass samples, micro-grain distribution testing, and wet or dry sonic/mechanical sieving operations, these 3-inch sieves ensure maximum sample recovery and consistent analytical reproducibility across demanding quality assurance workflows.

Technical Performance & Structural Attributes

• ASTM E11 Ultra-Fine Mesh Inspection: Precision-woven wire cloth is individually verified to comply with strict ASTM E11 aperture tolerances for reliable sub-50-micron particle separation.
• Heavy-Duty 304 Stainless Steel Architecture: Rigid 304 stainless steel frame and mesh withstand aggressive cleaning solvents, ultrasonic bath agitation, and dry-heat sterilization.
• Precision Interlocking Rim Geometry: Precision-machined nesting joints ensure leak-free vertical stacking and secure mounting on standard laboratory sieve shakers.
• Crevice-Free Internal Joinery: Seamless, smooth transition between the ultra-fine wire cloth and inner frame wall eliminates sample entrapment and enables total sample recovery.
• Compact 3-Inch Footprint: Optimizes sample agitation for low-quantity, high-value powders while minimizing required bench space and cleaning overhead.

Product Specifications

• Primary Manufacturer: Cole-Parmer
• Equipment Category: Precision Test Sieves / Ultra-Fine Particle Sizing Hardware
• Sieve Diameter: 3 inches (76.2 mm)
• Frame Profile Height: Full Height (1.25 in. / 31.8 mm overall depth; 1.0 in. / 25.4 mm stacked height)
• Mesh Sizes Included: Mesh No. 325 (45 µm nominal opening), Mesh No. 400 (38 µm nominal opening)
• Frame Material: 304 Stainless Steel
• Wire Cloth Material: Woven 304 Stainless Steel Wire Mesh
• Manufacturing Standards: ASTM E11 / ISO 3310-1 Compliant
• Sterilization & Thermal Limits: Autoclavable; dry heat resistant up to 120 degrees C
• Packaging Configuration: Lot of 4 Individual Test Sieves (2 x Mesh 325, 2 x Mesh 400)

Key Benefits & Applications

• Micronized Powder & API Sizing: Essential for verifying particle size distributions of micronized active pharmaceutical ingredients, excipients, and fine inhalable drug formulations.
• Advanced Additive Manufacturing & Metallurgy: Delivers reliable fraction testing for ultra-fine 3D-printing metal powders, thermal spray coatings, and ceramic precursors.
• Geological Silt & Clay Classification: Ideal for sub-50-micron soil fraction analysis, sediment research, and environmental core sample testing.

Used, in good condition.

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