SBS - The best value in QMS software

How Working Standard Calibration result use in Verification of Equipment

Dongzkie

Involved In Discussions
#1
I would like to know how working standard calibration result use in my equipment verification. For example bimetal thermometer(working standard) calibration result is : Ref. Value = 100C , UUT Value = 94C , Correction = 6 , Expanded meas of uncertainty of measurement assocciated with the reading is 1C confidence level 95% with K=2.00
I need to calibrate the moisture analyzer to 100C. Set point in the moisture analyzer is 100C the final reading on the display was 95 while in the bimetal thermometer reads 100C, is it the error is zero?
thanks.
 
Elsmar Forum Sponsor

Hershal

Metrologist-Auditor
Staff member
Super Moderator
#2
That you phrase it as "working standard" in my opinion is the key here. That suggests you have a reference standard (reference for your organization). Such reference standard will be calibrated by a higher level lab such as the National Measurement Institute (NMI). Working standards are created from reference standards in order to calibrate working measurement items that may be used in factory floors or similar.

Given the situation you describe, the working standard, if I understand correctly, reads 100C plus or minus 2C as your uncertainty.

Therefore, if I understand correctly, the UUT is at least four 4C out of spec and therefore fails.

It is possible I have misunderstood the description so feel free to correct me.

Hope this helps.
 

dgriffith

Quite Involved in Discussions
#3
I think he means to apply the bi-metal calibration results to the analyzer verification results.

Dongzkie, if I understand it, you say the bi-metal thermometer was calibrated at 100 ?C, but the bi-metal reading was 94 ?C, therefore a correction of +6? should be applied when you use it at 100?C.
For verification, the moisture analyzer set point was 100 ?C, but the display only read 95 ?C, and the bi-metal reading was 100 ?C.
If this is all correct then the actual temperature was 106 and the analyzer has an error of -11.

But if you mean the display was 100 and the bi-metal was 95 then with the +6 correction you have working standard = 101 ?1; analyzer reads 100, and so a very slight chance the error is zero.
(Temperature controllers usually control to the set point, even if there is an error in the actual temperature, which is why they are calibrated—so your process doesn’t turn to slag . . . A set point of 100 should cause the analyzer to eventually read 100 on the display, which is why I think the numbers got transposed.)
 
Last edited:

Dongzkie

Involved In Discussions
#4
Yes thats what i meant (in red font). So for example if the analyzer display reads at 94?C while bimetal reads also 94?C this means that the analyzer actual temp was 100?
Ty
I think he means to apply the bi-metal calibration results to the analyzer verification results.

Dongzkie, if I understand it, you say the bi-metal thermometer was calibrated at 100 ?C, but the bi-metal reading was 94 ?C, therefore a correction of +6? should be applied when you use it at 100?C.
For verification, the moisture analyzer set point was 100 ?C, but the display only read 95 ?C, and the bi-metal reading was 100 ?C.
If this is all correct then the actual temperature was 106 and the analyzer has an error of -11.

But if you mean the display was 100 and the bi-metal was 95 then with the +6 correction you have working standard = 101 ?1; analyzer reads 100, and so a very slight chance the error is zero.
(Temperature controllers usually control to the set point, even if there is an error in the actual temperature, which is why they are calibrated—so your process doesn’t turn to slag . . . A set point of 100 should cause the analyzer to eventually read 100 on the display, which is why I think the numbers got transposed.)
 

dgriffith

Quite Involved in Discussions
#5
Yes thats what i meant (in red font). So for example if the analyzer display reads at 94?C while bimetal reads also 94?C this means that the analyzer actual temp was 100?
Ty
Yes, with this scenario it appears that the analyzer's actual temperature is 100 ?C (Ref rdg 94?+6? correction) and its display has an error of -6?.

[After looking at some moisture analyzers on-line, it seems they are a pretty sophisticated instrument. Is a bi-metal thermometer adequate for verification?]
 

Dongzkie

Involved In Discussions
#6
Thank you for the explanation.
I have some question again :)
For example : Test weights calibration result nominal is 20kg.
result : 1) 19.999 2) 19.995 3) 19.992 4) 19.990 5) 19.996
I will verify a Bench scale ( readability = 0.05) using the 5 test weights.
what is correct way in making 40kg, 60kg or 100kg. It is correct that I will add 19.999 + 19.995 = 39.994kg to make a 40kg Reference? Or should weigh first the test weights individually then adding up.
thanks in advance
Yes, with this scenario it appears that the analyzer's actual temperature is 100 ?C (Ref rdg 94?+6? correction) and its display has an error of -6?.

[After looking at some moisture analyzers on-line, it seems they are a pretty sophisticated instrument. Is a bi-metal thermometer adequate for verification?]
 

Dongzkie

Involved In Discussions
#8
Thank you for the explanation.
I have some question again :)
For example : Test weights calibration result nominal is 20kg.
result : 1) 19.999 2) 19.995 3) 19.992 4) 19.990 5) 19.996
I will verify a Bench scale ( readability = 0.05) using the 5 test weights.
what is correct way in making 40kg, 60kg or 100kg. It is correct that I will add 19.999 + 19.995 = 39.994kg to make a 40kg Reference? Or should weigh first the test weights individually then adding up.
thanks in advance
 
Thread starter Similar threads Forum Replies Date
J Frequency of Re-Testing Working Standards (Secondary Reference Standard) Pharmaceuticals (21 CFR Part 210, 21 CFR Part 211 and related Regulations) 1
D What is the correct Working Standard for Digital Micrometer? General Measurement Device and Calibration Topics 21
R Need of working standard for vernier and micrometer calipers General Measurement Device and Calibration Topics 2
Raffy Definition Reference Standard vs. Working Standard - Differences Definitions, Acronyms, Abbreviations and Interpretations Listed Alphabetically 12
apestate Working with part numbers in assemblies - Is there a standard for part numbers? Document Control Systems, Procedures, Forms and Templates 6
I Definition Standard Deviation - Working vs. Thinking Definitions, Acronyms, Abbreviations and Interpretations Listed Alphabetically 4
John Broomfield Guidance on Safe Working During Covid-19 Pandemic Misc. Quality Assurance and Business Systems Related Topics 5
S Experience working with TUV SUD or Rheinland, and/or BSI Registrars and Notified Bodies 5
G Working on a Root Cause Problem Solving, Root Cause Fault and Failure Analysis 11
M Informational TGA-led IMDRF Personalised Medical Devices working group meets in Canberra Medical Device and FDA Regulations and Standards News 0
M Informational EU – Minutes of the 24 July 2019 SCHEER Working Group on safety of breast implants in relation to anaplastic large cell lymphoma (BIA-ALCL) meeting Medical Device and FDA Regulations and Standards News 0
Watchcat MDD, MDR/IVDR, Working Groups, Expert Panels, MEDDEVs and Other EU Guidances EU Medical Device Regulations 32
T Is anyone working with N299.1 (Supply/service to nuclear power plants)? Various Other Specifications, Standards, and related Requirements 0
M Informational EU – 12th Meeting of the Working Group on Guidelines on benefit – risk assessment of Phthalates in Medical Devices Medical Device and FDA Regulations and Standards News 0
G Anyone working with or planning to do business in the CBD (cannabidiol) industry? US Food and Drug Administration (FDA) 1
M Applicability of Means of Protection, working voltage in an Automated External Defibrillator IEC 60601 - Medical Electrical Equipment Safety Standards Series 0
Sidney Vianna ISO 9001 News Tirelessly Improving the Brand Integrity of ISO 9001 - Working Group under ISO TC 176 ISO 9000, ISO 9001, and ISO 9004 Quality Management Systems Standards 42
E Feeling ill when working with adhesives Occupational Health & Safety Management Standards 2
M Informational EU – SCHEER – Minutes of the Working Group meeting on guidelines on the benefit-risk assessment of the presence of phthalates in certain medical devic Medical Device and FDA Regulations and Standards News 1
T IEC60601-1: Isolation for an applied part with working voltage of 1500Vp. IEC 60601 - Medical Electrical Equipment Safety Standards Series 8
Rameshwar25 Min working experience for IATF 16949 third party auditor IATF 16949 - Automotive Quality Systems Standard 5
J AS9100 - Working Outside of Scope of Certification AS9100, IAQG, NADCAP and Aerospace related Standards and Requirements 5
S ISO 13485 Cl. 6.2 Human Resources - Personnel working within the QMS ISO 13485:2016 - Medical Device Quality Management Systems 4
K Outsourced Major Processes - Working for Two Sister Companies AS9100, IAQG, NADCAP and Aerospace related Standards and Requirements 1
A Working for multiple CB's (Certification Bodies) AS9100, IAQG, NADCAP and Aerospace related Standards and Requirements 17
N Anyone working on NIST SP 800-171 (Network and Information Security)? Records and Data - Quality, Legal and Other Evidence 4
O Cleaning API Rotary Shoulder Connections Working Mates exposed to Outside Weather General Measurement Device and Calibration Topics 1
R Working on a 510(k) that is very similar to the predicate device Other US Medical Device Regulations 4
L How many working hours to required to implement ISO 14001 ? ISO 14001:2015 Specific Discussions 6
R How to Determine Working Voltage & Tolerance for Isolation Barriers? IEC 60601 - Medical Electrical Equipment Safety Standards Series 2
S OHSAS 18001 - 4.3.2 Legal and Other Requirements - Working document or template Occupational Health & Safety Management Standards 2
B Any future for someone working as Lead Quality right these days? ISO 9000, ISO 9001, and ISO 9004 Quality Management Systems Standards 6
W Control of Document - Working Instruction and Checklist ISO 9000, ISO 9001, and ISO 9004 Quality Management Systems Standards 6
W Working in a company where we try to implement ISO 27001 IEC 27001 - Information Security Management Systems (ISMS) 9
C "PEAK WORKING VOLTAGE" with a 220-240VAC nominal Power Supply IEC 60601 - Medical Electrical Equipment Safety Standards Series 5
C What is an acceptable bioburden level or count when working in cleanroom ISO class7 ISO 13485:2016 - Medical Device Quality Management Systems 1
AnaMariaVR2 IMDRF Working With ICH on Harmonized Electronic Submission System for Drugs, Devices Other Medical Device Regulations World-Wide 0
J0anne US Working Permit Requirements for European Consultants Career and Occupation Discussions 2
E What are the major difficulties when working as a consultant in your industry? Consultants and Consulting 20
B Need help on an application we are working on Coffee Break and Water Cooler Discussions 4
A I am working in QA. How can I gain knowledge and skills on EHS system? Career and Occupation Discussions 4
K What are the challenges of working in UAE as an Auditor ? General Auditing Discussions 2
X Shall not exceed 2 working weeks = shall not exceed within 10 working days? IATF 16949 - Automotive Quality Systems Standard 2
I IEC 60601-1 Least Favourable Working Conditions for Medical Equipment IEC 60601 - Medical Electrical Equipment Safety Standards Series 3
L Working closer and better with Suppliers - Practical ideas to improve? Supplier Quality Assurance and other Supplier Issues 8
R Supplier Satisfaction Survey about Working with us as a Customer Supplier Quality Assurance and other Supplier Issues 7
R Informational How to consider the Working Voltage for splitting 2MOPP IEC 60601 - Medical Electrical Equipment Safety Standards Series 39
M Working Styles - The lazy, last minutes type Career and Occupation Discussions 13
R Determining Working Voltage - Drawing a Medical Device Insulation Diagram IEC 60601 - Medical Electrical Equipment Safety Standards Series 5
Q Quality Working Documents in same QMS Folders? ISO 9000, ISO 9001, and ISO 9004 Quality Management Systems Standards 4

Similar threads

Top Bottom