- Spectroscopic and other optical properties measuring equip. (21)
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- Infrared analytical instruments (34)
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- Microscopes, electron and proton (65)
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- Liquid testing apparatus (14)
- Densitometers, analytical (1)
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- PH meters, except industrial process type (1)
- Water testing apparatus (65)
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- Amino acid analyzers (1)
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- Instruments measuring magnetic and electrical properties (32)
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- Electrolytic conductivity instruments (22)
- Electrophoresis equipment (3)
- Magnetic resonance imaging apparatus (170)
- Neutron activation (1)
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- Differential thermal analysis instruments (5)
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- Automatic chemical analyzers (15)
- Chromatographic equipment, laboratory type (39)
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- Environmental testing equipment (262)
- Integrators (mathematical instruments) (21)
- Laser scientific and engineering instruments (202)
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- Particle size analyzers (6)
- Perimeters (optical instruments) (3)
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- Specific ion measuring instruments (1)
- Surface area analyzers (6)
- Titrimeters (1)
