LACO's Reservoir Helium Capillary Leak Standards are the most common leak standards used by our customers with thousands of possible configurations. A couple of configuration examples we offer are a 300 cc Reservoir with Manual Valve and Pressure Gauge, and a 115 cc Reservoir with Manual Valve and NW Flange. Our easy-to-use reservoir capillary leak standard configurator will guide you through the process of selecting the options you require. 

Typical applications requiring a helium leak standard

  • Mass Spectrometer Leak Detectors
  • Production Leak Systems
  • Helium Sniffer Leak Detectors
  • Helium Comparison or Transfer Leak Standards

available Tolerance options

LEAK STANDARD TYPE
STANDARD TOLERANCE
PRECISION TOLERANCE
HIGH PRECISION TOLERANCE
Polymicro Helium Reservoir± 1.0 of Mantissa± 10% of Nominal± 2% of Nominal
Permeation Helium Reservoir± 1.0 of Mantissa
± 10% of Nominal
Not available
Open-Style: Helium± 1.0 of Mantissa
± 10% of Nominal
± 2% of Nominal
Open-Style: Air± 20% of Nominal
± 5% of Nominal
Not available
Sniffer: Helium± 1.0 of Mantissa
± 10% of Nominal
Not available
Alternate Gas± 1.0 of Mantissa
± 10% of Nominal
Not available


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