Chamber Inspection Program

100% Quality Control

At Percival Scientific, we are extremely proud of our quality control programs that have been developed over the years. Our quality control protocols ensure that you receive Environmental Control Chambers which are long-lasting, dependable and reliable.

INSPECTION PROGRAM   TESTING PROGRAM

Percival Scientific's quality control program involves an exhaustive, 95-step inspection process that involves everyone from the initial assemblers to our product engineers.

ASSEMBLER:

  • CONDUCTS 21-ITEM CONSTRUCTION EXAM, MECHANICAL AND ELECTRICAL
LEAD REFRIGERATION:
  • CONDUCTS 23-ITEM CONSTRUCTION EXAM, REFRIGERATION CONSTRUCTION AND FUNCTION
OPERATIONS EXAMINER:
  • CALIBRATES CHAMBER
  • PERFORMS TEMPERATURE RECORDINGS
  • PERFORMS RELATIVE HUMIDITY RECORDINGS
IF MICROPROCESSOR CONTROLLED, THESE ADDITIONAL EXAMS PERFORMED:
  • TEMPERATURE AND RELATIVE HUMIDITY RAMPING RECORDINGS
  • TEMPERATURE AND RELATIVE HUMIDITY VARIANCES PERFORMED AT EXTREMES (MIN. AND MAX.)
ASSEMBLY LEADER:
  • CONDUCTS 22-ITEM MECHANICAL AND ELECTRICAL FUNCTIONAL EXAM
  • CONDUCTS 29-ITEM ELECTRICAL CONTROL FUNCTION EXAM
PRODUCT ENGINEERS:
  • RECHECK THE ABOVE, CONDUCT ADDITIONAL PERFORMANCE TESTS ON REFRIGERATION, MECHANICAL, ELECTRICAL, LIGHTING AND CONTROLLER ITEMS
  • CONDUCTS EXAM TEMPERATURE AND R.H. PERFORMANCES

Percival Scientific's Product Engineers also conduct sample tests on chamber products which determine the following:

LIGHT INTENSITY AIR VELOCITY (FT/MIN):

  • FANS AT FULL SPEED, FANS AT VARIABLE SPEEDS
TEMPERATURE UNIFORMITY:
  • AT VARIOUS TEMPERATURES UNDER FULL LIGHTS AND WITH LIGHTS OFF
MINIMUM TEMPERATURE WITH:
  • FULL LIGHTS ON
  • VARIABLE LIGHT INTENSITIES

MAXIMUM TEMPERATURE

RELATIVE HUMIDITY:

  • BETWEEN 15°C AND 30°C, LIGHTS ON, LIGHTS OFF

SOUND LEVEL 

Quality Control Tests of construction and performance are conducted on every Percival Chamber before shipment! Special tests may be available upon request to meet your specific needs!

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