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ASTM International, 11/01/2012
Publisher: ASTM
File Format: PDF
$26.00$52.00
Published:01/11/2012
Pages:3
File Size:1 file , 66 KB
Note:This product is unavailable in Russia, Ukraine, Belarus
1.1 This specification covers requirements for glass burets of precision and general-purpose grades suitable for laboratory use.
1.1.1 Class A-Each buret of precision grade may be marked with the letter “A” to signify compliance with applicable construction and accuracy requirements in Table 1 and Table 2. Each buret may be marked with a permanent serial number at the option of the manufacturer.
Graduated Scale
Capacity, mL
Subdivision, mL Class A and B
Class A Scale Length, mm 0 to Capacity
Class B Scale Length, mm 0 to Capacity
Distance, Top of Buret to “0” Graduation, mmA
Class A and B Number Each, mL
Class A Volumetric Tolerance, ±mL
Class B Volumetric Tolerance, ±mL
10
0.05
350 to 450
250 to 450
30 to 75
0.5
0.02
0.04
25
0.1
1
0.03
0.06
50
500 to 600
40 to 100
0.10
100
0.2
550 to 650
2
0.20
Length Graduated, cm
Time of Out- flow Not Less Than, s
15
30
45
80
20
35
90
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