Parr-instrument 6100 Instrukcja Użytkownika Pobierz pdf (Strona 57)

Standardization

6100

www.parrinst.com

Table C-3

Calorimeter Control Limit Values in BTU/lb When Benzoic Acid is Used as a Test Sample

Accepted heat of combustion taken as 11373 BTU/lb.

Instrument precision 0.20%.

Control limits based on 99% condence (3 sigma) values.

Values are in BTU/lb.

NUMBER OF

OBSERVATIONS

IN A GROUP

UCL FOR THE RANGE

(HIGH – LOW) WITHIN

THE GROUP

UCL FOR THE

RSD WITHIN THE

GROUP

MAXIMUM PERMISSIBLE DEVIATION

OF THE GROUP MEAN FROM THE

ACCEPTED VALUE OR GRAND MEAN

1 68.2

2 83.9 0.521% 48.3

3 99.1 0.455% 39.4

4 106.9 0.418% 34.1

5 111. 9 0.393% 30.5

6 115.5 0.375% 27.9

7 118.3 0.361% 25.8

8 120.7 0.350% 24.1

9 122.7 0.341% 22.7

10 124.4 0.334% 21.6

11 125.9 0.327% 20.6

12 127.2 0.322% 19.7

13 128.4 0.317% 18.9

14 129.6 0.313% 18.2

15 130.6 0.309% 1 7. 6

16 131.5 0.305% 1 7. 1

17 132.4 0.302% 16.6

18 133.2 0.299% 16.1

19 133.9 0.297% 15.7

20 134.7 0.294% 15.3

21 135.3 0.292% 14.9

22 136.0 0.290% 14.5

23 136.6 0.288% 14.2

24 137.2 0.286% 13.9

25 137.7 0.284% 13.6

1 2 ... 52 53 54 55 56 57 58 59 60 61 62 ... 81 82

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