Some standard content:
S 17.040.3C
National Standard of the People's Republic of China
GR/T 8061—2004
GB/-80)1937
Lever micrometer
Micronieterwith dial comprator Issued on 2004-02-10
General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China Administration of Standardization of the People's Republic of China
Implementation on 2004-08-01
This standard shall replace the lever micrometer of 1988 (R·Lan): The definition of the scale of graduation 33335 version 1 is revised and the definition of the model ticket is adopted in the 4th version of 108, except that the value range of the element on the back of the table shall use the 2.2 of the 1987 version) The first addition of "digital display equal reading" (4 minus the indication of the reduction Section 1.1 collected the requirements for appearance defects of the film inquiry: "The version of this edition has been revised, 1: version 1; the requirements for the selection of the test stand and the test station (this version of "CB/I8061-2004
added the micro-measurement of the main diameter of the circle of the welded part 4: 7 of the annual report; 5.4.1 of this edition; added the requirements for the micro-screw extension part of the wooden bottle: 5.1.2) and the return of the micro-explosion between the shaft and the table (this version of .4.33, .2; the specification was revised, and the electro-magnetic test and chemical test (1874 shares: 16 of this edition): added the micro-measurement of the locking part. When the two measuring surfaces change! This edition: the tower adds the blood of the measuring plate (wooden edition.?!: collected the new requirements for measuring blood (11 years.7: this edition's 5.7.4 adds the requirements for the working standard of the people's division and cutting time (this edition's 8.; increase, the differential display only asks the minister to (this exciting 2) connects to the ruler mark width should be the lower limit (1987 your 3.; this edition's 5.3.2): added the differential preparation who's sword angle requirements of the stock. 3): add more requirements for the section counter (this edition's 5, 9): the empty movement of the port meter (year edition. 3 stocks. 10 will change the / scan display of the clothes to recognize the difference ( 197 edition 3._8; this edition about 5.21): revision: check the degree of public. Cancel its production and the seat of the public honor parallel degree public essential table? Niu version: said 3.13.2,
standard signature party reached the 1987 edition when the 4 version of the 6 like changed the indication value variability inspection position (. Will make the version of the business A: six 5) wood standard mountain China Kaitan 1 industry association dragon: this standard is not the city of the national position of the chemical technology committee macro lamp mouth, this standard again Wende quantity month limit change the official goods capital start school: this standard will start gas people: strict water year, meter law control this standard represents the standard mountain version of the stone clear situation is: G3: R0611s27
1 Specification
Lever micrometer
GB/T3061—2004
This standard specifies the terms and definitions, types, parameters, requirements, inspection methods, marking and packaging of lever micrometers: This standard is used for the graduation value of the probe is 0.01nmt.u01mm.U.002am, 0.Gc5mm, or 25mm.. The unspecified graduation value is .cm% and the upper limit of measurement is 3.0mm + 1mm.? Regulatory references
The following clauses are the reference documents of the six standards: the reference documents of the specified period, all subsequent changes (excluding thermal errors or revisions) are not certified. Before the standard is issued, the parties should try to use the latest version of the document according to the agreement of this standard. For any reference document that is not in the specified period, the latest version shall be used as the standard. GB/T7163-1997 Technical Group for Measurement Instruments 3 Terminology Definition
G/T111-1S?4 The following terms and conditions are applicable to this standard 3. 1
Red rod micrometer mierurklerwithdiuleumpuraturUse the red meter transmission mechanism, sample scale frame F: the value of the return of the axial language of the language of the projection for the donation of the pointer of the rotation movement, the mountain indicator table to take the measurement of the small difference between the flow of the water outside the micrometer, 3. 2
Maximum permissible error nximunpenuissiblerrr Mountain technical specifications, current rules, etc. for the rod micrometer to determine the error limit. 3. 3
(The maximum permissible error of the indicator
Emaximun permissible crrur or dial The error of the micrometer head is ignored. The error of the micrometer head is the difference between the vertical position and the horizontal position of the micrometer. 4 Type and basic function 4.1 Type See the single type of micrometer in the figure 7, the figure is only for group listening. 4.2 The dosage of the micrometer is mm~2Fmmm-[mm0am--73mr.751331
GB/T 8061-2CC4
5 Requirements
5.1 Appearance
Step steel frame
Measurement a engineer rod
A Xu
Now hot installed stomach
Fixed in the certificate distributionwwW.bzxz.Net
Measurement of micrometer and stop and the above-mentioned standard treatment of calcium speed, class injury, aging, cracking and other defects. 5.2 Calibration
5.2.1 Only steel with the best flexibility and reliability should be selected. 5.2.2 Only materials with high quality, such as stainless steel or other similar materials should be selected for micro-support. The total surface area should be measured by high-quality alloy or other low-abrasive materials.
5.3 The scale frame
should only be made of high-quality steel, and the scale account should be safe at two points. 5.4 Micro-measuring rods and measuring code
5.4.1 The diameter of the circular ring of the scale frame should be 7.5m or 8.m.E.4.2 The length of any micro-measuring rod should not be less than 3:5.43 The measuring range of the product should be fully compatible with the product. The ratio should not be obvious and the belt should not be obvious. 5.4.4 The micro-measuring rod and the single-mountain scale should be divided into two parts. The shaft should be well matched with the shaft, and the movement should be large. 5.4.5 The movement should be small. 5.4.6 The movement should be small. H The movement should not be large. 5.5 The force measuring device should be divided into H and H. The force measuring device should be connected to the force measuring cover to measure the force between the micro screw and the ball. The change is greater than
5. 6 Locking device
Jiangcun "distraction into the child's treatment service has a locking device, when tight, the difference between the two hot monitoring and the six cavitation should not be greater than.
5.7 Test plate
5.71 Alloy 1 copper creation need not be easy to quality, quality HVI or 2HRC, the first surface of the preheating is not less than + (53HRt
5.7.2 Elimination of the edge of the surface error. 3 The output is .1m within 2
5. 7. 3 The parallelism error between the two measuring stops is not more than Table 1 Table 1 of the regulations
Road small scale/n
Supplies calibration
5.7.1 The two measuring surfaces of the scale under the social pole shall not be at obvious positions, 5.8 Scale
5.8.1 The differential scale and the scale shall have 100 scale divisions, G
Correct stock specifications/
GB/I8061—2004
Use measuring block environment
5.8.2 The scale spacing on the differential scale shall not be too small! 0.m. The bright pressure of the scale mark), 08 training to 0.2m 5.8.3 The distance between the fixed pipe surface of the 720 standard domestic business circle company and the side car area is not too large Jo.1 m.
5.8.4 The scale mark on the fixed pipe and the mark on the differential record are clear, and the width should not be greater than .33mr. 5.8.5 When the scale is needed, the side of the fixed pipe can be changed to the fixed side pipe. The ballast load is not too high, and the island line is not too high. [ mrt,
5.9 Digital display device
When the moving book function and the rod are in a series of micro-explosions, the counter should be connected in sequence and there should be no maximum indication phenomenon: the reading value with the sub-segment display should not be different from the count reading. The digits of the code and the digits of the code (except when the number is not carried) should not be on the same line of the half line. 5.10 Indicator
5.1 Tolerance indicator should not change when it is in operation: 5.1,2 The zero position of the dial should not be less than 10.5 points. The zero position should not change when it is in operation. 5.1C.3 The scale marks on the dial should be clear, and the interval between the scales should not be less than u.3mm. The width of the scale marks should be within 0.0%m to 2am, the scale should be 9.5tr5.1C.4 The tip of the ruler should be C, 1mm, c.2cm. The distance between the needle tip and the bottom of the plate should not be greater than 5 to 3% of the scale length. 5.1, 542 The micrometer should be filled with fiber shafts, and the knife should be small. The pointer should rotate more than 1/2 minute.
5.13.6 When the micrometer is locked! If the index value is 0,0 (1mm), the pointer does not rotate completely through 3 indexes. The index value of the indicator does not exceed 1/min. The maximum allowable error of the indicator is 5.11 (the maximum allowable error of the indicator), that is, the position error, the maximum allowable deviation of the indication value, and the minimum variability of the position error. The range is described in Table 2. The maximum allowable deviation of the indication value is m
within 20 years within the range of
small fear/L
position value Error/time
GB/T8061—2004
5.12 Maximum allowable error
The allowable error of the lever main scale should not be greater than the current provisions in Table 3, Table 3
Measurement of salt +../rum
...*5m
5.13 Pulling the measuring rod and adjusting the tool
Maximum allowable setting/pm
5.13.1 The lever main scale should be used for zero adjustment and compensation of the micrometer rod and the source mother burst pattern. 5. 13. 2 The measurement is equal to or greater than 5J mm The size of the measuring rod is provided in the order of the busy support, and the bad size and size catalog of the measuring rod are checked. According to the provisions of 4, the hardness of the cover surface should not be less than 76UHI or 62HRC> and the torsion R value of the effective surface should not be greater than U.02=Tu. Table 4
Nominal small element of the effective cover rod
5 Inspection method
6.1 Force measurement
Dimensions of the opposite support /
Install the movable support according to the common phase line vertically to the horizontal value, in the ho The steel ball will measure the surface of the measuring force of the measuring surface. The measured force of the two limit positions (1 + 3 divisions, one division) is calculated and compensated for. The difference between the two limit positions (upper 30 divisions, -3 divisions) of the micrometer plate is the difference between the measured values of the upper and lower limits (upper 30 divisions, lower 3 divisions). The change in force is the range of the micrometer.
6.2 Change the scale
Adjust the pointer and the scale mark to match. Then draw the purple micro-operation rod: the pointer on the indicator is pulled away from the pointer. 6.3 Parallelism of the measuring surface
Use the optical parallelism function to check the surface. No more than two sand rings or sand bands of the same color should appear on the measuring surface. The inspection should adjust the position of the flat product and the number of upper sand bands or sand rings should be as small as possible, or make them produce closed sand. 6.4 Flatness of the measuring surface
Use the optical plane to check the surface. No more than two sand rings or sand bands of the same color should appear on the measuring surface. When testing with a ring or a belt, avoid making the number of interference rings or the number of closed rings as small as possible, or make it produce a closed ring, 6.5 (indicator) increase the allowable error
between the dial block with a length of 1mm1 and the standard blank: after the effect, use the following identified block group to place each block in turn for measurement and read the indication of the service check point on the table, the maximum value of the difference is the indication error. 0 to 2 points within the year is the check point, 21 points to 21 points within the year is a variable check point.
）The lever micrometer with the indexing value of c1 adopts the gauge block set with the size of (m.9r7mm0.95omm.u.982nura.0.984mm.c.s86mn.0.93amm.0.990nm3.592mn.0.9a1mm.0. Ss6 intn,0. 598 rua.1. 000 rm,1.cc2 mm,1.004 mm.,1. 00e m,-. ces mm.1. 3_o mm1.c12 mm,1.\14 mn,J, u6 ronm,J,01s mm,1, (2c mm,1, cH3 mm.,1, 33 mr.,1,33o mm.
GB/T 8061—2004
1) The dial scale with a graduation value of (.M2rrm) is 0.U4umm.0.565mm.c.964mmc.958m.o.972m.3.976mm.c.s8omm.0.93/tal.0.988mn.n.99?nm..996m..1.J39mm.l.094mm.:.008mm.1.c12mm.1.016tm.1.020mm,1.c21mni.1.028mm .1.32m1.35mm.=.0mm.1.06umm.6.6 Indication variability of the indicator
Place a test block or spherical head between the measuring rod and the micrometer, and move the pointer of the indicator from the negative force space (-) to the positive force space (+) to any position, and lock the sensitive rod; push the rod to recalibrate as the test point, and then move the rod for 10 times. After the indicator mechanism is stable, the maximum value of the pointer from the test point is the indication variability of the indicator. 6.7: Position guarantee
The zero position and two The limit position (10 30 divisions and one price division) are used as the receiving point. When testing, first test the pointer and the receiving point mark in the horizontal plane! Then lock the pointer on the vertical mountain ticket and read the pointer away from the receiving point scale mark. When testing, do not dial or push the rod. 6.8 Maximum allowable error
Tighten the rod and divide the ruler at the clamping point. After zeroing, place the size of the stomach between the two measuring surfaces in turn as follows: 5m, 5.1mm.7.7rtr.1J.3m.12.9mm.15.0mm.J7.5mm,20.2 mm.22.8t and 25mm are specially opened for measurement with an accuracy of approximately 1 respectively. The indicated value of the machine rod micrometer indicator is the smallest 10 values above the above-mentioned unit and the measuring error is considered to be the most compensatory error. For a rod micrometer with an upper measurement limit equal to an adult's 100m throw, it is necessary to use special gauge blocks suitable for various sub-disc specifications or combine the gauge blocks for operation inspection: the calculation method is the same as the above method. 7
mark and end
7.1 Machine rod micrometer 1. The five markings are:
system road 『! Name and registered trademark;
Creation and supervision specification
Indicator scale:
Product font
7.2 Proofreading mark on the nominal length 7.3 The bottom of the packaging box of the micrometer should be marked with at least: a) manufacturer's name or registered trademark;
b) product name:
2) measuring country,
7.4 The micrometer should be inspected and packed by the manufacturer, and the product should not be damaged during transportation due to improper packaging. 7.5 The micrometer that has been verified to meet the requirements of this standard should be accompanied by a product certificate, and the product certificate should be marked with the standard number of the standard. Product serial number and factory date:The 5J mm busy support "scale sequence provides a comparison of the measuring rod, proofread the bad size and size catalog of the measuring rod. Clothes 4 provisions, the hardness of the cover surface is not less than 76UHI or 62HRC> and the effective surface torsion R value should not be greater than U.02=Tu, Table 4
Nominal small element of the effective cover rod
5 Inspection method
6.1 Measuring force
Dimensions of the opposite support/
Install the movable support according to the common phase line vertically to the horizontal value, and the steel ball will measure the measuring surface. The measuring force of 1.32 is also shown in the two values. The measurement force of the two limit positions (1 + 3 divisions, one center division) is calculated and compensated, and the difference between the two limit positions (+ 30 divisions, -3 divisions) on the measuring plate of the micrometer is the difference between the measurement values of the upper and lower limit positions of the micrometer. The difference is the change in the force of the micrometer.
6.2 Adjust the pointer and the scale mark to match. Then mark the distance from the pointer to the base mark on the dial.
6.3 Parallelism of the measuring surface
Use optical parallelism to verify the effect. No more than two lower rings of the same color appear on the measuring surface. Or sand belt. The inspection should adjust the flatness of the product quickly and the upper ten-year belt or the number of months of the interference ring should be as small as possible, or it should produce a closed ten-year interference. 6.4 Measuring surface flatness
Use optical plane flatness to start the test. No more than one interference ring or lower interference ring should appear on the measuring surface! When checking, some products should be avoided to make the number of ten-year work or interference rings on the measuring surface as small as possible, or it should produce a closed ten-year interference ring. 6.5 (Indicator) Increase the allowable error
Place a disc block with a length of 1mm1 between the dial and the dial: After the reference is effective Use the following identified gauge block group to place each gauge block in turn for measurement and read the indication difference of the slow check point on the indicator. The maximum value of the difference is the indication error. 0 to 20 minutes is the check point, and 21 minutes to 20 minutes is a variable check point.
) The lever micrometer with a dial graduation value of c1 adopts the size of (m.9r7mm0.95omm.u.982nura.0.984mm.c.s86mn.0.93amm.0.990nm3.592mn.0.9a1mm.0. Ss6 intn,0. 598 rua.1. 000 rm,1.cc2 mm,1.004 mm.,1. 00e m,-. ces mm.1. 3_o mm1.c12 mm,1.\14 mn,J, u6 ronm,J,01s mm,1, (2c mm,1, cH3 mm.,1, 33 mr.,1,33o mm gauge block set.
GB/T 8061—2004
1) The dial scale with a graduation value of (.M2rrm) is 0.U4umm.0.565mm.c.964mmc.958m.o.972m.3.976mm.c.s8omm.0.93/tal.0.988mn.n.99?nm..996m..1.J39mm.l.094mm.:.008mm.1.c12mm.1.016tm.1.020mm,1.c21mni.1.028mm.1.32m1.35 mm.=.0mm.1.06umm.6.6 The variability of the indication value of the indicator
Place a test block or spherical head between the measuring rod and the micrometer, and make the pointer of the indicator rotate from the negative force space (->) to the positive force space (+) to any position, and lock the measuring rod; push the rod and recalibrate it as the test point, and then move the rod for 10 times. After the indicator mechanism is stable, take the maximum value of the pointer from the test point as the indicator. The indication value of the indicator has variability. 6.7: Position guarantee
Take the zero position and two limit positions (+30 division and +1 division) on the indicator as the test points. When testing, first test the pointer and the test point mark in the horizontal plane! Then lock the maximum value and read the distance between the pointer and the test point scale mark on the vertical direction. Do not dial or push the rod when testing. 6.8 Maximum allowable error
Tighten the rod bisecting ruler at the clamping point, calibrate the zero pull, and then place the size line between the two measuring surfaces in turn? ,5m, 5.1mm.7.7rtr.1J.3m.12.9mm.15.0mm.J7.5mm, 20.2mm.22.8t and 25mm are specially opened for inspection with an accuracy of approximately 1 respectively. The indicated value of the machine rod micrometer indicator is the smallest 10 values above the above-mentioned unit digit and the measuring error is considered to be the most compensatory error. For the corresponding rod micrometer with an upper measurement limit equal to 100m for adults, it is necessary to use special gauge blocks suitable for various sub-disc specifications or combine the gauge blocks for operation inspection: the calculation method is the same as the above method. 7
mark and package end
7.1 Machine rod micrometer 1. Five less marks are:
system road 『! Name and registered trademark;
Creation and supervision specification
Indicator scale:
Product font
7.2 Proofreading mark on the nominal length 7.3 The packaging box of the micrometer should at least be marked with: a) manufacturer's name or registered trademark;
b) product name:
2) measuring country,
7.4 The micrometer should be inspected and packed by the manufacturer, and the product should not be damaged during transportation due to improper packaging. 7.5 The micrometer that has been verified to meet the requirements of this standard should be accompanied by a product certificate, and the product certificate should be marked with the standard number of the standard. Product serial number and factory date:The 5J mm busy support "scale sequence provides a comparison of the measuring rod, proofread the bad size and size catalog of the measuring rod. Clothes 4 provisions, the hardness of the cover surface is not less than 76UHI or 62HRC> and the effective surface torsion R value should not be greater than U.02=Tu, Table 4
Nominal small element of the effective cover rod
5 Inspection method
6.1 Measuring force
Dimensions of the opposite support/
Install the movable support according to the common phase line vertically to the horizontal value, and the steel ball will measure the measuring surface. The measuring force of 1.32 is also shown in the two values. The measurement force of the two limit positions (1 + 3 divisions, one center division) is calculated and compensated, and the difference between the two limit positions (+ 30 divisions, -3 divisions) on the measuring plate of the micrometer is the difference between the measurement values of the upper and lower limit positions of the micrometer. The difference is the change in the force of the micrometer.
6.2 Adjust the pointer and the scale mark to match. Then mark the distance from the pointer to the base mark on the dial.
6.3 Parallelism of the measuring surface
Use optical parallelism to verify the effect. No more than two lower rings of the same color appear on the measuring surface. Or sand belt. The inspection should adjust the flatness of the product quickly and the upper ten-year belt or the number of months of the interference ring should be as small as possible, or it should produce a closed ten-year interference. 6.4 Measuring surface flatness
Use optical plane flatness to start the test. No more than one interference ring or lower interference ring should appear on the measuring surface! When checking, some products should be avoided to make the number of ten-year work or interference rings on the measuring surface as small as possible, or it should produce a closed ten-year interference ring. 6.5 (Indicator) Increase the allowable error
Place a disc block with a length of 1mm1 between the dial and the dial: After the reference is effective Use the following identified gauge block group to place each gauge block in turn for measurement and read the indication difference of the slow check point on the indicator. The maximum value of the difference is the indication error. 0 to 20 minutes is the check point, and 21 minutes to 20 minutes is a variable check point.
) The lever micrometer with a dial graduation value of c1 adopts the size of (m.9r7mm0.95omm.u.982nura.0.984mm.c.s86mn.0.93amm.0.990nm3.592mn.0.9a1mm.0. Ss6 intn,0. 598 rua.1. 000 rm,1.cc2 mm,1.004 mm.,1. 00e m,-. ces mm.1. 3_o mm1.c12 mm,1.\14 mn,J, u6 ronm,J,01s mm,1, (2c mm,1, cH3 mm.,1, 33 mr.,1,33o mm gauge block set.
GB/T 8061—2004
1) The dial scale with a graduation value of (.M2rrm) is 0.U4umm.0.565mm.c.964mmc.958m.o.972m.3.976mm.c.s8omm.0.93/tal.0.988mn.n.99?nm..996m..1.J39mm.l.094mm.:.008mm.1.c12mm.1.016tm.1.020mm,1.c21mni.1.028mm.1.32m1.35 mm.=.0mm.1.06umm.6.6 The variability of the indication value of the indicator
Place a test block or spherical head between the measuring rod and the micrometer, and make the pointer of the indicator rotate from the negative force space (->) to the positive force space (+) to any position, and lock the measuring rod; push the rod and recalibrate it as the test point, and then move the rod for 10 times. After the indicator mechanism is stable, take the maximum value of the pointer from the test point as the indicator. The indication value of the indicator has variability. 6.7: Position guarantee
Take the zero position and two limit positions (+30 division and +1 division) on the indicator as the test points. When testing, first test the pointer and the test point mark in the horizontal plane! Then lock the maximum value and read the distance between the pointer and the test point scale mark on the vertical direction. Do not dial or push the rod when testing. 6.8 Maximum allowable error
Tighten the rod bisecting ruler at the clamping point, calibrate the zero pull, and then place the size line between the two measuring surfaces in turn? ,5m, 5.1mm.7.7rtr.1J.3m.12.9mm.15.0mm.J7.5mm, 20.2mm.22.8t and 25mm are specially opened for inspection with an accuracy of approximately 1 respectively. The indicated value of the machine rod micrometer indicator is the smallest 10 values above the above-mentioned unit digit and the measuring error is considered to be the most compensatory error. For the corresponding rod micrometer with an upper measurement limit equal to 100m for adults, it is necessary to use special gauge blocks suitable for various sub-disc specifications or combine the gauge blocks for operation inspection: the calculation method is the same as the above method. 7
mark and package end
7.1 Machine rod micrometer 1. Five less marks are:
system road 『! Name and registered trademark;
Creation and supervision specification
Indicator scale:
Product font
7.2 Proofreading mark on the nominal length 7.3 The packaging box of the micrometer should at least be marked with: a) manufacturer's name or registered trademark;
b) product name:
2) measuring country,
7.4 The micrometer should be inspected and packed by the manufacturer, and the product should not be damaged during transportation due to improper packaging. 7.5 The micrometer that has been verified to meet the requirements of this standard should be accompanied by a product certificate, and the product certificate should be marked with the standard number of the standard. Product serial number and factory date:93/tal.0.988mn.n.99?nm..996m..1.J39mm.l.094mm.:.008mm.1.c12mm.1.016tm.1.020mm,1.c21mni.1.028mm.1.32m1.35mm.=.0mm.1.06umm.6.6 Variability of indication value of indicator
Place a test block or spherical head between the measuring blood of the micrometer and the measuring rod, and move the pointer of the indicator from the negative force space (-) to the positive force space (+) to any position, and lock the sensitive rod; push the rod to re-calibrate the operation. The indicator is then moved 10 times. After the indicator mechanism is stable, the maximum value of the pointer away from the check point is the indicator's indication. 6.7: Position guarantee
Take the zero position and two limit positions (+30 divisions and one division) on the indicator as the check point. When testing, first test the pointer and the check point mark in the horizontal plane! Then lock the maximum value and read the distance between the pointer and the check point on the vertical mountain ticket. The rod should not be dialed or pushed during the test. 6.8 Maximum allowable error
Tighten the rod to the clamping point, calibrate the zero, and then between the two measuring surfaces in turn. The optical micrometer size is divided into? ,5m, 5.1mm.7.7rtr.1J.3m.12.9mm.15.0mm.J7.5mm, 20.2mm.22.8t and 25mm. The accuracy is about 1 respectively. The difference between the indicated value of the micrometer indicator and the above-mentioned unit digit and the smallest error of the micrometer is considered to be the error of the micrometer. For the micrometer with the upper limit of measurement equal to 100m, it is necessary to use a special gauge block suitable for various sub-discs or combine the gauge blocks for operation inspection: the calculation method is the same as the above method. 7||t t||Marking and packaging
7.1 Micrometer bar 1.5. The following shall be marked:
Manufacturer name or registered trademark;
Creation and supervision standard
Indicator scale:
Product font
7.2 Verification mark on the nominal length 7.3 Micrometer bar packaging box shall be marked with: a) Manufacturer name or registered trademark;
b) Product name:
2) Measurement standard,
7.4 The micrometer bar shall be packed by the European rustproof and must be installed. The product shall not be damaged during transportation due to improper installation. 7.5 The micrometer bar that has been verified to meet the requirements of this standard shall be accompanied by a product certificate, and the product certificate shall be marked with the standard number of the standard. Product serial number and factory date:93/tal.0.988mn.n.99?nm..996m..1.J39mm.l.094mm.:.008mm.1.c12mm.1.016tm.1.020mm,1.c21mni.1.028mm.1.32m1.35mm.=.0mm.1.06umm.6.6 Variability of indication value of indicator
Place a test block or spherical head between the measuring blood of the micrometer and the measuring rod, and move the pointer of the indicator from the negative force space (-) to the positive force space (+) to any position, and lock the sensitive rod; push the rod to re-calibrate the operation. The indicator is then moved 10 times. After the indicator mechanism is stable, the maximum value of the pointer away from the check point is the indicator's indication. 6.7: Position guarantee
Take the zero position and two limit positions (+30 divisions and one division) on the indicator as the check point. When testing, first test the pointer and the check point mark in the horizontal plane! Then lock the maximum value and read the distance between the pointer and the check point on the vertical mountain ticket. The rod should not be dialed or pushed during the test. 6.8 Maximum allowable error
Tighten the rod to the clamping point, calibrate the zero, and then between the two measuring surfaces in turn. The optical micrometer size is divided into? ,5m, 5.1mm.7.7rtr.1J.3m.12.9mm.15.0mm.J7.5mm, 20.2mm.22.8t and 25mm. The accuracy is about 1 respectively. The difference between the indicated value of the micrometer indicator and the above-mentioned unit digit and the smallest error of the micrometer is considered to be the error of the micrometer. For the micrometer with the upper limit of measurement equal to 100m, it is necessary to use a special gauge block suitable for various sub-discs or combine the gauge blocks for operation inspection: the calculation method is the same as the above method. 7||t t||Marking and packaging
7.1 Micrometer bar 1.5. The following shall be marked:
Manufacturer name or registered trademark;
Creation and supervision standard
Indicator scale:
Product font
7.2 Verification mark on the nominal length 7.3 Micrometer bar packaging box shall be marked with: a) Manufacturer name or registered trademark;
b) Product name:
2) Measurement standard,
7.4 The micrometer bar shall be packed by the European rustproof and must be installed. The product shall not be damaged during transportation due to improper installation. 7.5 The micrometer bar that has been verified to meet the requirements of this standard shall be accompanied by a product certificate, and the product certificate shall be marked with the standard number of the standard. Product serial number and factory date:
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