JJG 2005-1987 Brinell Hardness Measuring Instrument Verification System JJG2005-1987 standard download decompression password: www.bzxz.net
This verification system specifies the purpose, composition, metrological characteristics and verification procedures of Brinell hardness metrological reference instruments and metrological standard instruments, as well as the metrological characteristics and verification methods of working metrological instruments.

The National Metrology Verification System of the People's Republic of China JJG2005--87
Brinell Hardness Meter Information
Approved on December 22, 1987
Sold on October 1, 198
National Metrology Bureau
Brinell Whiplash Meter Verification System
Verification Scheme of Measuring Instruments for Brinel Hardness Teaters
J32058
Agent:
This national statistical table was approved by the National Planning Week on December 22, 1988, and came into effect on October 1, 1988.
Drafting unit:
Ningbo Science Research Institute
This cumulative statistical technical provisions, this calibration system is produced by
School of Science and Technology)
Dream Added:
Fuzhou Detailed
China Planning Science)
2 Planning Instrument Marking
Three T Work Week Planning Instrument People's
National Festival Bowel Apparatus Calibration System Standard Catalog
JJ:2005--87
Huang 710th! Page
Cloth hardness measuring instrument verification system
This standard system specifies the use of cloth measurement base facilities and measurement standard instruments: composition, measurement benefit test procedures, and the use of measurement standard instruments.
A measurement instrument refers to the instrument
I idle national standard
3.1 The use of national base
The national standard is used to issue and preserve the production of cloth long molds. 1.2 National standard self-measurement:
The separation of you for the meeting, the trial office will take the following table 2,3 extension policy.
! It is the degree of the micro-calculation scale of the pressure drive light. For the pressure of 10 5m straight compaction, the pressure of about 0.002 should be verified by using a ball pressure head with a diameter less than 2.0m. The speed number should be 0.01m. For the 7 and 5m point balls, the ball with a diameter less than 2.0m should be sent to the head seat to measure the pressure head. The uncertainty of the test level equal to or greater than 1839N (187,5kgf) is d0.5%
Page 2 of the book
Medical Skin Float Number
HBS (HBVI s20 | 41-5
IIDS(IIDW)/S
DSTIBWIS
[5(HBW>8+5/91.25
ED：0+13*F/D
JC2G0537
Nikgcj
23,4ax 101(3 on0)
[4.:1X 157(i 590]
P.80: × 1c(1 00)
d.80$×16*( 600)
2+452 G15*(250)
h-225 x 1u1(125)
(81-28)
I+k9r, k 15(18+,1)
JJG2005—87
With permission seal
S(HE.WJ..:S.2
HESHAW).6.8126
H52120
HS(IPw)?/D
HReHPW)R5
HESBW,4|| tt | IG3(12c)
(1+25)
No. 4
04001
HVe (I)
V1500
JJG2005-87
For test less than "839H (187,kgf) level uncertainty: 61,0%
2 National source series pain
2,1 National standard vehicle full length complex Brinell units according to the national film 2.3 torsion diagram National standard full maintenance accounting device technical requirements are in line with the national standards.
2.3 National hardness range of the type 48-650HS(W)
2.4 National uncertainty of creation speed
The uncertainty of the national benchmark is equal to 3 before the work
3.1 The work is completed or compared with the national benchmark standard, and the piece has been appraised by the country. The unit of production is under the national plan and the base temperature is not below the sub-base temperature. 3.2 The working base pressure is 8—650 BS(W) 3.3. The uncertainty of the base flow is 0.7% for the test force equal to or greater than 1835N (187.58f) and 0.12% for the test force less than 1839—875g. Under certain conditions, the national standard can be used to compare the uncertainty between the British standard and the working standard. This kind of teaching control is gradually realized, the comparison item virtual fast obstacle full reading whole person
comparison degree block average degree is,
2942(3o)time,
small 423000,
measuring standard instrument
5 tightness current intention heat system signal light
you continent has the sky certificate block through fat pain material benefit, the setting error (transfer reading) is o,+1.52612.0%t3.0%
F standard non-line item quality original
HBS(45)10/3000/30
H$(w15/750/30
HBS(W)2,5/1 87.5/30
H(W10/1000/m
HH$(W>5/250/30
RR(W+2.5/62.5/8F
1113Nr>2.5/15.6/60
7Standard pressure heat stability quotient
150~250
150~250
150~25m
75---J25
75~125
75~125bZxz.net
HBs(w)15n～250.More than 1.0%
HHS(W) 75~125 EJ, JW.1: XJ-1,5%(W)25--35, should not be less than 30%
Three working station equipment
batch micro-1C150-61 will belong to the mayor hardness tester inspection home now strong and G month 6265-86 page 6
skillful hardness tester technical requirements in the process quality reverse meter as working state typical, working cloth hard library meter indication value misinstalled
cloth civil hardness tester most equipment inspection space according to the spot hit G2005--87
cloth medical planning science its verification system plug
has been realized
6 -55t Hs(w) is uncertain.
Specification:
Industrial coal production
Standardized change
uncertain,
340.1x1.0K
Working external disk phosphorus
Secondary construction design
Accepting the position condition
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