Humidity measurements - We calibrate a wide variety of humidity probes

#1
Hi gang,
I have a technical question with regards to measuring humidity. In my lab, we currently use a General Eastern C1 in conjunction with a chilled mirror. The chilled mirror controls the humidity generator, in this case, the C1.
http://www.geindustrial.com/products/brochures/C1MRHGenerator-modelc1mrh.pdf

We calibrate a wide variety of humidity probes with this setup, including our Vaisala probe, that has an accuracy of ±1%. The standard mentioned above has an accuracy of ±1% also. So in essence, I'm performing a 1:1 cal.

Is there some technical paper where it will help my justification for performing at 1:1 cal, since the technology to measure humidity at 1% or below is very difficult?
 
Elsmar Forum Sponsor
Thread starter Similar threads Forum Replies Date
B ASME B89.6.2 - Temperature and Humidity Environment for Dimensional Measurements General Measurement Device and Calibration Topics 6
C One Time Service Supplier - Temperature and Humidity Testing Service ISO 13485:2016 - Medical Device Quality Management Systems 5
J ISO 15223-1: Keep dry vs. humidity limitation label symbol Other Medical Device Related Standards 2
Q Weigh Scale Electronics - Suggested Storage Humidity and Temperature Manufacturing and Related Processes 7
S IEC 60601-1 Humidity Precondition Test IEC 60601 - Medical Electrical Equipment Safety Standards Series 4
S Methods to reduce relative humidity in Datacenter IEC 27001 - Information Security Management Systems (ISMS) 3
M Saturated salts issue - Humidity Chamber General Measurement Device and Calibration Topics 5
V Temperature/humidity requirements in internal metrology laboratory General Measurement Device and Calibration Topics 3
N ESD and Humidity Monitoring in Work Areas Manufacturing and Related Processes 1
Ajit Basrur MS Excel to study Correlation between Humidity & Differential Pressure Excel .xls Spreadsheet Templates and Tools 7
M How to Measure Paper considering Variation and Humidity General Measurement Device and Calibration Topics 10
D Sterile Medical Device Temperature and Humidity (Storage) Labeling Requirements EU Medical Device Regulations 5
Ron Rompen Help with Corrosion (Humidity) Testing Procedure - Sintered Metal Steel Parts Manufacturing and Related Processes 9
J Transformer Compliance Testing, overheat then humidity treat, then dielectric test? IEC 60601 - Medical Electrical Equipment Safety Standards Series 1
P Humidity Pre-Conditioning before leakage current and dielectric strength tests IEC 60601 - Medical Electrical Equipment Safety Standards Series 7
B Do I need to perform Gage R&R on a Digital Temperature & Humidity Gage Gage R&R (GR&R) and MSA (Measurement Systems Analysis) 18
J Relative Humidity and Plastic Raw Material Moisture Manufacturing and Related Processes 4
G IEC 61010 Humidity Preconditioning and Condensation CE Marking (Conformité Européene) / CB Scheme 4
M Daily Temperature and Humidity Graph template Document Control Systems, Procedures, Forms and Templates 2
A MSA (Measurement Systems Analysis) for Humidity Machine Gage R&R (GR&R) and MSA (Measurement Systems Analysis) 2
B Temperature/Humidity inside a store Human Factors and Ergonomics in Engineering 7
M Temperature and Humidity requirements for Raw Material Storage and Quality Labs IATF 16949 - Automotive Quality Systems Standard 13
R 5% to 95% Non-Condensing Humidity Storage Test Conditions and Failure Modes APQP and PPAP 2
D PCBA Lab Temperature & Humidity Requirements - Advice needed Manufacturing and Related Processes 7
M Cl 5.7 Humidity preconditioning required for all Medical Electrical Equipment? IEC 60601 - Medical Electrical Equipment Safety Standards Series 2
H What is the ISO Class 7 cleanroom requirement on Temperature and Humidity ? Manufacturing and Related Processes 3
S ETO ISO 11135-1 & ISO 17665-2 - Purity and Quality of Steam (Humidity) Qualification and Validation (including 21 CFR Part 11) 3
T ISO 2230 (Guidelines for Storage of Rubber Products) - Temperature, Humidity & Light Other ISO and International Standards and European Regulations 8
K Desiccants & Humidity Control inside ocean going Shipping Containers Supplier Quality Assurance and other Supplier Issues 5
T Calibration Laboratory Temperature/Humidity goes out of tolerance due to Power Loss General Measurement Device and Calibration Topics 9
E Humidity Pre-Conditioning IEC 60601-1 (2005) IEC 60601 - Medical Electrical Equipment Safety Standards Series 9
D Buying a Temperature and Humidity Device, and Calibration AS9100, IAQG, NADCAP and Aerospace related Standards and Requirements 8
D Will just Heat and Humidity be Adequate to Simulate EtO Sterilization? Design and Development of Products and Processes 2
R Inspection Humidity Control - Range for Mechanical Inspection Inspection, Prints (Drawings), Testing, Sampling and Related Topics 1
N Chilled Mirror Dew Point Meter for Humidity Measurement Measurement Uncertainty (MU) 2
R Does Humidity affect Electronic Instrument Calibration? General Measurement Device and Calibration Topics 16
D How to use temperature and humidity environmental control data? Statistical Analysis Tools, Techniques and SPC 18
B Analytical Lab Environmental Condition (Temperature & Humidity Control Limit) General Measurement Device and Calibration Topics 5
G Humidity Problem in our Laboratory General Measurement Device and Calibration Topics 12
S Temperature and Humidity Chamber Verification General Measurement Device and Calibration Topics 5
C Need source for temperature and humidity gage General Measurement Device and Calibration Topics 8
M Temperature/humidity monitoring process procedure Manufacturing and Related Processes 2
N Uncertainty calculations for RH (Relative Humidity) sensors Measurement Uncertainty (MU) 5
N Uncertainty for Humidity Probes - Temperature Effect from 0.5?C dew point = 1.3%rh Measurement Uncertainty (MU) 2
I Temperature and humidity storage requirements? US Food and Drug Administration (FDA) 6
J Controlling Temperature and Humidity in the CMM Room and does anyone use Artifacts? Inspection, Prints (Drawings), Testing, Sampling and Related Topics 8
K Relative Humidity Requirement on Calibration Certificates General Measurement Device and Calibration Topics 5
E Humidity Requirements for an ISO 7 or ISO 8 Medical Device Cleanroom? 21 CFR Part 820 - US FDA Quality System Regulations (QSR) 5
A Relative Humidity + ISO 9001:2000 Audit of Maintenance Department ISO 9000, ISO 9001, and ISO 9004 Quality Management Systems Standards 30
A Controlling Humidity in a Textile Testing Laboratory General Measurement Device and Calibration Topics 10

Similar threads

Top Bottom