SBS - The best value in QMS software

Calibration of Micrometers - Can we put 2 gage blocks together?

#1
Help!

Our Quality Manager if on indefinite leave and a calibration issue has just surfaced.

We are at the 60 day interval and the micrometers need to be calibrated before our audit next week. Our set of gage blocks includes .0625, .1250, .2500, .5000 and 1.0000 (certified to the NIST standards).

My question is: Can we put 2 gage blocks together (1.0000 + .0625), etc. in order to measure a 1-2" micrometer?

Any help would be greatly appreciated.

Sue
 
Elsmar Forum Sponsor

Mike S.

Happy to be Alive
Trusted Information Resource
#5
Sue,

I don't wanna sound like I'm piling-on, but it does sound like a procedure (or better procedure) needs to be written for cal of mic's. But to answer you, yes you can stack standards and they are designed for this -- if the surface finish is correct and the standards clean you should be able to "rub/slide" them together so that they sort-of stick together to each other, then measure them.
 
K

Ken K

#6
The term you guys are looking for is wringing qualities of the gage blocks. Check your calibration certificate for wringability. It should be included in a statement. Worn gage blocks would affect this.

What it is is the capability of the blocks to be stacked.

Yes, it is acceptable if your blocks are capable. The better solution would be gage blocks to measure the 1 - 2" range.
 
R

Ryan Wilde

#9
Okay, so now we have established that wringing the blocks is okay (it will add about 20 µin/wrung surface uncertainty to your measurement over using a single block). That takes care of spindle linearity.

Sue, if these are standard outside caliper-style flat-anvil micrometers, how are you going to test the micrometer anvils for parallelism and flatness? Gage blocks won't do for these tests, and you will need a monochromatic light and optical parallels. Do you have these?

Ryan
 

Geoff Cotton

Quite Involved in Discussions
#10
Sue,

Before we all start theorising and going into the bowels of how to measure atomic particles, can I ask a simple question……

what are you measuring with your micrometers?
:bonk: :ko:
 
Thread starter Similar threads Forum Replies Date
Q Micrometers to Measure Coating Thickness - Failed Calibration Flatness & Parallelism General Measurement Device and Calibration Topics 9
M Writing a Calibration Procedure for Groove Micrometers General Measurement Device and Calibration Topics 4
R Self (In-House) Calibration of Measuring Tools (vernier, micrometers etc.) General Measurement Device and Calibration Topics 17
5 Calibration of Thread Pitch Micrometers General Measurement Device and Calibration Topics 3
D Calibration work instuctions - Micrometers, indicators, etc. showing the uncertainty Measurement Uncertainty (MU) 2
M Calibration Procedures for checking and certifying micrometers and calipers General Measurement Device and Calibration Topics 3
Marc Calibration Environment - Micrometers - NCSL RP 7 - Laboratory Design General Measurement Device and Calibration Topics 5
N IATF Calibration Lean in Manufacturing and Service Industries 2
Q Do these certificates of calibration meet ISO 9001 requirements for traceability to NIST? ISO 9000, ISO 9001, and ISO 9004 Quality Management Systems Standards 7
T Plug Gage Calibration Calibration and Metrology Software and Hardware 1
M Load Cell Calibration using a totalizer on a flow meter General Measurement Device and Calibration Topics 0
E Calibration Records needed ISO 9000, ISO 9001, and ISO 9004 Quality Management Systems Standards 1
D Limited Range Calibration - 5000 lb Industrial floor scale General Measurement Device and Calibration Topics 3
D Calibration of Small Scales General Measurement Device and Calibration Topics 26
C How to Establish the Calibration & Measurement Capability (CMC)? ISO 17025 related Discussions 1
I IQOQ or just initial calibration required? General Measurement Device and Calibration Topics 3
B Calibration in real life ISO 9000, ISO 9001, and ISO 9004 Quality Management Systems Standards 3
J Calibration cycle for monitoring & measuring tools used in medical device manufacturing General Measurement Device and Calibration Topics 5
A Is calibration of test weight required General Measurement Device and Calibration Topics 4
S Calibration Frequency for Slip Gauge Kit used for CMM Calibration? General Measurement Device and Calibration Topics 0
S Calibration/Verification of customer fixtures IATF 16949 - Automotive Quality Systems Standard 6
Ron Rompen Calibration by manufacturer ISO 17025 related Discussions 4
Q Calibration verification records 7.1.5.2.1 IATF 16949 - Automotive Quality Systems Standard 2
B AS9100D 7.1.5.2 Calibration or Verification Method using outside cal lab AS9100, IAQG, NADCAP and Aerospace related Standards and Requirements 1
W Next Calibration Due Date Calibration Frequency (Interval) 5
S Where do l get calibration standards to run a calibration lab? Other ISO and International Standards and European Regulations 2
A OEM On-Site Calibration issues during Covid19 ISO 9000, ISO 9001, and ISO 9004 Quality Management Systems Standards 12
D Calibration tolerance question using Pipettes Medical Device and FDA Regulations and Standards News 1
M Calibration Certificate Result issued by an accredited external laboratory General Measurement Device and Calibration Topics 9
G Calibration of "Master Parts" Used as Gauges Calibration Frequency (Interval) 5
R Calibration lab environmental monitoring General Measurement Device and Calibration Topics 4
G Calibration of Rotronic probe but not digital readout? General Measurement Device and Calibration Topics 3
F Standard Calibration Procedures: Recommended Practice ISO 17025 related Discussions 0
T Temperature Requirements For In House Calibration - AS9100 AS9100, IAQG, NADCAP and Aerospace related Standards and Requirements 16
B Gage calibration frequency, ISO and IATF - What are the requirements Calibration Frequency (Interval) 3
Crimpshrine13 Laboratory Scope - Calibration vs. Test Methods - IATF 16949 IATF 16949 - Automotive Quality Systems Standard 3
Crimpshrine13 Calibration of pH Meter Probe Calibration and Metrology Software and Hardware 3
F ESD workbench "calibration" Manufacturing and Related Processes 2
C Correct Calibration Method for Dial Depth Gage General Measurement Device and Calibration Topics 6
F Nist traceable calibration certificates General Measurement Device and Calibration Topics 1
G Tool tracebility and First calibration requirements for aerospace (AS9100) organisation AS9100, IAQG, NADCAP and Aerospace related Standards and Requirements 5
D Calibration of Digital thermometer with surface probe General Measurement Device and Calibration Topics 1
T Calibration or Verification -> Cm and Cmk, etc. Definitions, Acronyms, Abbreviations and Interpretations Listed Alphabetically 3
G Is repeatability required for equipment calibration? General Measurement Device and Calibration Topics 10
was named killer AS 9100D - Calibration Instructions - Controlled documents? AS9100, IAQG, NADCAP and Aerospace related Standards and Requirements 6
B Photovoltaic Tester Calibration General Measurement Device and Calibration Topics 0
B Temperature loop: partial calibration General Measurement Device and Calibration Topics 10
G Glass scale calibration at 74 degrees F? General Measurement Device and Calibration Topics 4
A Digital Timer Calibration Requirements General Measurement Device and Calibration Topics 3
Ron Rompen Barcode Verifier Calibration and Use Calibration and Metrology Software and Hardware 5

Similar threads

Top Bottom