Plain Gauges Calibration

BS 969: 2008

Plain gauges are essential for maintaining high quality and consistency in the production of precision parts, making their calibration crucial for ensuring measurement accuracy. Rhopoint Metrology offers ISO 17025 certified calibration.

Read more on how to care for plain limit gauges

Plain Gauges Calibration Services

Plain Plug Gauges

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UKAS Calibration for Plain Plug Gauges – Parallel – Single Ended – up to 100 mm (up to 4″)UKAS
UKAS Calibration for Plain Plug Gauges – Parallel – Single Ended – 100 – 150 mm (4 – 6″)UKAS
UKAS Calibration for Plain Plug Gauges – Parallel – Single Ended – 150 – 250 mm (6 – 10″)UKAS
UKAS Calibration for Plain Plug Gauges – Parallel – Single Ended – above 250 mm (above 10″)UKAS
UKAS Calibration for Plain Plug Gauges – Parallel – Double Ended – up to 100mm (up to 4″)UKAS
UKAS Calibration for Plain Plug Gauges – Parallel – Double Ended – 100 – 150 mm (4 – 6″)UKAS
UKAS Calibration for Plain Plug Gauges – Parallel – Double Ended – 150 – 250mm (6 – 10″)UKAS
UKAS Calibration for Plain Plug Gauges – Parallel – Double Ended – above 250 mm (above 10″)UKAS
UKAS Calibration for Progressive Plain Plug Gauge – (3 Diameters) – up to 50mm (up to 2″)UKAS
UKAS Calibration for Plain Plug Gauges – Plain Taper – up to 100 mm (up to 4″ )UKAS
UKAS Calibration for Plain Plug Gauges – Plain Taper – above 100 mm (above 4″)UKAS

Plain Ring Gauges

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UKAS Calibration for Ring Gauges – Plain – Setting Rings – 2 UpTo 100 mm (0.078″ to 4″)UKAS
UKAS Calibration for Ring Gauges – Plain – Setting Rings – 100 – 150 mm (4″ – 6″)UKAS
UKAS Calibration for Ring Gauges – Plain – Setting Rings – 150 – 250 mm (6″ – 10″)UKAS
UKAS Calibration for Ring Gauges – Plain – Setting Rings – above 250 mm (above 10″)UKAS
UKAS Calibration for Double Diameter Plain Setting Ring – Go/Not Go – up to 100 mm (up to 4″)UKAS
UKAS Calibration for Double Diameter Plain Setting Ring – Go/Not Go – 100 – 150 mm (4″ – 6″)UKAS
UKAS Calibration for Ring Gauges – Plain – Plain Taper – up to 4″ (up to 4″)UKAS
UKAS Calibration for Ring Gauges – Plain – Plain Taper – above 4″ (above 4″)UKAS
UKAS Calibration for Air Setting Ring & Plug SetUKAS
UKAS Calibration for Special Min/Max Taper Ring GaugeUKAS

Luer Taper

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UKAS Calibration for Ring Gauges – Plain – Luer TaperUKAS
UKAS Calibration for Plain Plug Gauges – Luer TaperUKAS

Pin Gauges

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UKAS Calibration for Pin Gauges (Drill Blanks) – eachUKAS
UKAS Calibration for Taper Graduated PinUKAS

Rok-It Gauges

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UKAS Calibration for Plain Rok-It Gauge – Double Ended – up to 100mm (up to 4″)UKAS
UKAS Calibration for Plain Rok-It Gauge – Double Ended – 100 – 150 mm (4 – 6″)UKAS
UKAS Calibration for Adjustable Rok-It GaugeUKAS
UKAS Calibration for Plain Rok-It Gauge – Double Ended – 150 – 250mm (6 – 10″)UKAS
UKAS Calibration for Plain Rok-It Gauge – Double Ended – above 250 mm (above 10″)UKAS

Gap Gauges

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UKAS Calibration for Gap Gauges – Plain / Adjustable – up to 100 mm (up to 4″)UKAS
UKAS Calibration for Gap Gauges – Plain / Adjustable – Above 100 mm (Above 4″)UKAS
UKAS Calibration for Charpy Test Piece – ‘U’ NotchUKAS
UKAS Calibration for Charpy Test Piece – ‘V’ NotchUKAS

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Plain Limit Gauges

BS 969 : 2008

This standard specifies the tolerances and limits for simple forms of limit gauges, such as:

  • Cylindrical plain plug,
  • Plain ring gauge
  • Gap gauge
  • Pin gauges

It is intended for reference by component producers and gauge makers when gauge limits have not been stipulated. It specifies gauge tolerances for work piece tolerances in ranges between 0.009mm and 3.200mm and how gauge limits are related to the work piece limits. It also specifies types of gauge according to size and minimum work piece tolerance, dimensions are expressed in millimetres but appropriate values in imperial units are given in appendix C.

Care and use

  1. Always select the plain limit gauge that best fits the application
  2. Care should be taken while using plain limit gauges.ย  Should you drop a plain limit gauge, it should be re-calibrated/repaired before reusing it
  3. Always clean gauges after use with a lint free paper or cloth and store in its box
  4. Do not use excessive force when applying the gauge to the component
  5. Where gauges are showing wear on the front surface, the gauge can be reversed in the handle (applies to double ended reversible pin gauges)
  6. Never use a plain limit gauge that has not been calibrated, if in doubt consult an appropriate authority.

It is highly recommended that an appropriate authority such as a UKAS approved laboratory carries out a full calibration on plain limit gauges at least once a year. In between UKAS calibrations at a frequency based on usage, plain limit gauges should be calibrated in-house. A typical in-house calibration would include a written procedure and an associated calibration record sheet, which would contain as a minimum, the following listed information:

Plain limit gap gauges

(a) Serial number

(b) Location

(c) Procedure number

(d) Workpiece tolerance

(e) Gauge tolerance

(f) Results

(g) Measurement uncertainty

(h) Sentence if appropriate

(i) Date and calibrators signature

(j) Traceability to National Standards

It is necessary that any person carrying out such calibration work should have received appropriate training and have shown the ability to be confident via a suitable training authority. Training records should be held and maintained.

Following are layouts for typical in-house calibrations for plain limit gauges:

Calibration to be carried out in accordance with in-house procedure number …………………..

Serial Number: Make:

Calibration Date: Sizes:

FEATURE EXAMINEDย ย ย ย ย ย ย ย ย ย ย ย ย ย ย ย ย ย ย ย ย  SPEC.ย ย ย ย ย ย ย ย ย ย ย ย ย ย ย ย ย ย ย ย ย  MEASURED RESULTS

GO:

NOT GO:

The plain limit gap gauges were visually inspected for damage and the following faults were noted:

MEASUREMENT UNCERTAINTY +/- 0.003mm (0.5-100mm range)

Source: UKAS schedule of accreditation, Calibration and measurement capability (CMC)

Calibrators Signature: ………………………………….

A traceability statement in this section would be required for all items and their relevant certification utilised for the calibration of plain limit gap gauges.

Plain Plug Gauges

BS 969 : 2008

Calibration to be carried out in accordance with in-house procedure number …………………..

Serial Number: Make:

Calibration Date: Sizes:

FEATURE EXAMINEDย ย ย ย ย ย ย ย ย ย ย ย ย ย ย ย ย  SPEC.ย ย ย ย ย ย ย ย ย ย ย ย ย ย ย ย ย  MEASURED RESULT

ย ย ย ย ย ย ย ย ย ย ย ย ย ย ย ย ย ย ย ย ย ย ย ย ย ย ย ย ย ย ย ย ย ย ย ย ย ย ย ย ย ย ย ย ย ย ย ย ย ย ย ย ย ย ย ย ย ย ย ย ย ย ย ย ย ย ย ย ย ย ย ย ย ย ย ย ย ย ย ย  FRONTย ย ย ย  MIDDLEย ย ย ย ย ย ย ย  BACK

GO:

@ 90 degrees:

NOT GO:

@ 90 degrees:

The plain limit plug gauges were visually inspected for damage and the following faults were noted:

MEASUREMENT UNCERTAINTY +/- 0.0005mmย  (1-25mm range)

Source: UKAS schedule of accreditation, Calibration and measurement capability (CMC)

ย 

Calibrators Signature: ………………………………….

A traceability statement in this section would be required for all items and their relevant certification utilised for the calibration of plain limit plug gauges.

Go/Not-go Plain Ring Gauges

BS 969 : 2008

Calibration to be carried out in accordance with in-house procedure number …………………..

Serial Number: Make:

Calibration Date: Sizes:

FEATURE EXAMINEDย ย ย ย ย ย ย ย ย ย ย ย ย ย ย ย ย  SPEC.ย ย ย ย ย ย ย ย ย ย ย ย ย ย ย ย ย  MEASURED RESULT

ย ย ย ย ย ย ย ย ย ย ย ย ย ย ย ย ย ย ย ย ย ย ย ย ย ย ย ย ย ย ย ย ย ย ย ย ย ย ย ย ย ย ย ย ย ย ย ย ย ย ย ย ย ย ย ย ย ย ย ย ย ย ย ย ย ย ย ย ย ย ย ย ย ย ย ย ย ย ย ย  FRONTย ย ย ย  MIDDLEย ย ย ย ย ย ย ย  BACK

GO:

@ 90 degrees:

NOT GO:

@ 90 degrees:

The plain ring plug gauges were visually inspected for damage and the following faults were noted:

MEASUREMENT UNCERTAINTY +/- 0.0008mmย  (2-25mm range)

Source: UKAS schedule of accreditation, Calibration and measurement capability (CMC)

ย 

Calibrators Signature: ………………………………….

A traceability statement in this section would be required for all items and their relevant certification utilised for the calibration of plain ring gauges.

UKAS Calibration

All of our Laboratories are accredited to provide UKAS & Traceable calibrations to all the relevant standards giving you peace of mind.

Benefits of Calibration

Accurate & Reliable

Make consistent, accurate and reliable measurements

Increase Product Life

Ensure longevity of the measuring instruments

Safety and Reliability

Ensure safety in critical applications such as medical and aerospace