US. Department of Commerce

National Institute i

of Standards and Technology a

TECH BRIEF

f

z-- C E- ocT-gcl-dal

National Voluntary

Laboratory Accreditation Program

NVLAP PROFICIENCY TESTING

ENERGY EFFICIENT LIGHTING PRODUCTS PROGRAM

ROUND 1

This TECH BRIEF presents an analysis of the data returned from four laboratories for Round 1

of the Energy Efficient Lighting Products Program Proficiency Testing. Samples were handcarried to each of the laboratories by the NVLAP Technical Expert to minimize possible damage

to the lamps. Portions of the measurement processes were observed by the Technical Expert.

Measurements were conducted between March 15, 1993 and June 15, 1993.

Three lamp types were used in Round 1 . The lamps were 75 watt rough-service incandescent

lamps, seven watt compact fluorescent lamps and 32 watt T-8 linear fluorescent lamps. The

incandescent lamps were seasoned at voltage for 8 hours prior to testing. Both types of

fluorescent lamps were seasoned for 500 hours prior to testing. The same three lamps of each

type were measured at each laboratory . Each group of lamps was measured three times. Each

set of measurements is referred to as a run . The order of measurement was changed during

each run. Lamps were turned off and removed from the measurement sphere between each

run. The photometric system was calibrated between each run if this was the laboratory's

standard operating procedure . All of the measured and calculated values reported by each

laboratory are included in the Appendix of this report to allow others to conduct further

analysis. The tables in the Appendix also include the results of the statistical analysis

performed by the NVLAP Proficiency Test (PT) Contractor. Power and luminous flux , and also

calculated values for efficiency, were used to prepare Tables 1 through 11 and the

accompanying plots given in the main text . The plots generally show fewer data points per

laboratory than given in the tables due to overstrikes in plotting similar data. Averages,

percent coefficient of variation, and other summary statistics calculated on the basis of a small

population can differ considerably from values from a large population.

INCANDESCENT LAMP MEASUREMENTS

The incandescent lamp measurements were made using the general methods in IES GUIDE LM45 "Incandescent Lamp s-El ectri cal Measurements and Total Flux Measurements". All

laboratories measured the lamps using an integrating sphere and photometric detector. The

lamps were operated base up at 120 volts . Measured values were lamp current in amperes and

total luminous flux in lumens. Lamp power in watts was calculated by the laboratory from the

product of the applied voltage and measured current. The efficiency, in lumens per watt, was

calculated by the PT Contractor by dividing the measured luminous flux by the laboratory

calculated power.

Circulate to interested staff.

To To

To To

i U Rew rrl 11)

This report is for the use of participating NVLAP laboratories. It is not cleared by NIST for publication.

To request extra col)ie^ of TF( H RRf FF call 'NVL.AP ai ( 3(11 ) 9'> .

EE-DET-94-001 COMMENT 01
Energy Efficient Lighting Products Program

The values of the calculated lamp power are shown in Table 1. Similarly the results of the

luminous flux measurements are given in Table 2 and the values of calculated lamp.,ffeiciency

are presented in Table 3. These tables also include the results of statistical analyses and plots

of the test parameter versus laboratory.

COMPACT FLUORESCENT LAMP MEASUREMENTS

The compact fluorescent lamp electrical and photometric measurements were made following

the procedures and specifications in IES GUIDE LM-66 "Single-Ended Compact Fluorescent -

Lamps-Electrical Measurements. Photometric Total Flux Measurements". The reported

measurements were made with the test lamp mounted base up at the center of an integrating

sphere. Some laboratories used photometric detectors and others used a spectroradiometer to

determine the total luminous flux. The color measurements were made following IES GUIDE

LM-58 "Spectroradiometric Measurements".

The test lamps were operated on a standard reference ballast as specified in ANSI Standard

C82.3 1983(R1989) "Fluorescent Lamp Reference Ballast, Specifications". This ballast consists

of a linear reactor and a resistor to set power factor. The operating line voltage, ballast

impedance and ballast power factor are specified in ANSI Standard C78.1-1978(R 1984) "Guide

for Dimensional and Electrical Characteristics of Fluorescent Lamps . " . The specific values for

the lamps tested are line volts 118 volts, ballast impedance at 60 hertz of 570 ohms and a'

power factorof 0.075. c -;`-

Reported electrical measurements include lamp operating voltage, lamp current and lamp

power. Photometric measurements reported are total luminous flux obtained either directly

with a photometric detector or calculated from spectroradiometric measurements. Lamp

efficiency was calculated by the PT Contractor by dividing the laboratory's luminous flux value

by the measured lamp power. The reported colorimetric values for chromaticity, color

temperature and color rendition are all calculated from spectroradiometric measurements.

The results of the measured lamp power are shown in Table 4. Similarly, the luminous flux

results are given in Table 5 and the calculated lamp efficiency is presented in Table 6. The

calculated colorimetric values are summarized in Table 7. As before, results of statistical

analyses and plots are presented.

LINEAR FLUORESCENT LAMP MEASUREMENTS

The linear fluorescent lamp electrical and photometric measurements were made following the

procedures and specifications in IES GUIDE LM-9 "Fluorescent - Lamps-Electrical Measurements

- Photometric Total Flux Measurements". The reported measurements were made with the test

lamp mounted horizontally at the center of an integrating sphere. Some laboratories used

photometric detectors and others used a spectroradiometer to determine the total luminous

flux. The color measurements were made following IES GUIDE LM-58 "Spectroradiometric

Measurements."

The test lamps were operated on a standard reference ballast as specified in ANSI Standard

C82.3 1983(R1989 ) "Fluorescent Lamp Reference Ballast, Specifications ". This ballast consists

of a linear reactor and a resistor to set power factor. The operating line voltage , ballast

impedance and ballast power factor are specified in ANSI Standard C78.1-1978(R1984 ) "Guide

for Dimensional and Electrical Characteristics of Fluorescent Lamps - Rapid ,". The spe_cifi-c_alues.___. r r-^^T

for the lamps tested are line volts 300 volts, ballast impedance at 60 hertz` 0910 ohms and a

Page 2

EE-DET-94-001 COMMENT 01
Energy Efficient Lighting Products Program

power factor of 0.075. The lamps were operated in the rapid start mode with separate power

supplied to the cathodes.

Reported electrical measurements include lamp operating voltage, lamp current and lamp

power. Photometric measurements reported are total luminous flux obtained either directly

/ with a photometric detector or calculated from spectroradiometric measurements. Lamp

ef;~ficiency was calculated by the PT Contractor by dividing the laboratory's luminous flux

value by the measured lamp power. The colorimetric values reported for chromaticity, color

temperature and color rendition are calculated from spectroradiometric measurements.

The results of the lamp power measurements are shown in Table 8. Similarly the luminous

flux results are given in Table 9 and the calculated lamp efficiency is presented in Table 10.

The calculated colorimetric values are summarized in Table 11. Statistical analyses and plots

are also included.

COMMENTS AND CONCLUSIONS

Tables 12A through 12C are summaries of the watts, lumens, and efficiencies, respectively, for

each of the three types of lamps, and allow for comparisons of these properties between the

lamps. For example, the percent range of measured efficiency was smallest for the

incandescent lamps and largest for the compact fluorescent lamps.

This is the first round of proficiency testing; therefore, no information is available on the time

stability of the laboratory's measurements. With the limited measurements made, it is not

possible to establish whether the measurement variations among laboratories are due to the

equipment or procedures of the laboratory, the stability of the test lamps, the source of

calibration standards or the design of the test. It is expected that the results of future

Proficiency Test Rounds will provide data to help determine the effect of such variables.

The selection of a rough-service incandescent lamp may be questionable. Standard

incandescent lamps in the 40 to 100 watt range have no filament supports and, therefore, tend

to be fragile and the filament easily broken in shipment after the lamp is lighted a few hours.

The rough-service lamps have several supports touching the filament but not tightly clamped to

the filament. These supports do reduce the probability of the filament breaking in shipment,

but they tend to change the effective resistance of the filament as they shift in position. This

may be a source of the observed variability of the standard deviation of electrical power for

these lamps. These observations need to be considered when round two of proficiently testing

is designed

INFORM -ATION

This TECH BRIEF was prepared by Raymond L. Brown, Ph.D., Brown Proficiency Testing, Inc,

under contracted to NIST/NVLAP. For further information contact Larry Galo%Nin, Program

Manager for the Energy Efficient Lighting Products Program at 301-975-4022, Jeffrey Horlick,

Program Manager for Proficiency Testing at 301-975-4020 or Raymond L. Brown, Proficiency

Testing Contractor at 216-449-5796.

Page 3

EE-DET-94-001 COMMENT 01
Energy Efficient Lighting Products Program

Power in Watts Laboratory Number

Lamp Run 2 3 4

1 1 71.90 71.75 72.20 71.75

1 2 71.90 71.68 71.70 71.68

1 3 71.90 71.69 72.10 71.75

2 1 72.30 72.58 72.00 72.01

2 2 72.20 71.95 72.30 72.53

2 3 72.20 71.97 72.00 72.05

3 1 71.60 71.47 71.50 71.30

3 2 71.60 71.37 71.40 71.39

3 3 71.60 71.50 71.40 71.41

iiiAverage 71.91 71.77 71.84 71.76

std dev 0.276 0.365 0.350

^

0.390

Grand Average:

std dev:

Percemt Deviation

71.82

0.069

0.12 -0.07

Lamp Power

U

0.03 -0.08

E

72.0 n

71 6

nm

n

71 4

71 2

71.0

1 2

Laboratories

3 4

TABLE 1: Electrical Power of Incandescent Lamp in Watts

Page 4

EE-DET-94-001 COMMENT 01
Energy Efficient Lighting Products Program

Flux in Lumens Laboratory Number

Lamp Run 1 2 3 4

1 1 710.1 689.0 714.0 704.6

1 2 709.4 687.0 690.0 703.7

1 3 705.1 686.0 708.0 703.7

2 1 718.9 738.0 706.0 717.0

2 2 718.4 703.0 719.0 739.9

2 3 720.4 700.0 705.0 717.0

3 1 705.5 693.0 689.0 701.8

3 2 703.9 686.0 685.0 701.8

3 3 706.6 690.0 690.0 700.8

Average 710.92 696.89 700.67 710.03

std dev 6.55 16.57 12.37 12.84

Grand Average: 704.63

std dev: 6.94

Percent deviation 0.89 -1.10 -0.56 0.77

Lamp Luminous Flux

7400

- 7300 -

7200

U-)

7000

6900 -

6800 -

n

a

I

1 2

Laboratories

3 4

TABLE 2: Luminous Flux of Incandescent Lamp in Lumens

Page

EE-DET-94-001 COMMENT 01
Energy Efficient Lighting Products Program

Efficiency in LPW Laboratory Number

Lamp Run 1 2 3 4

1 1 9.88 9.60 9.89 9.82

1 2 9.87 9.58 9.62 9.82

1 3 9.81 9.57 9.82 9.81

2 1 9.94 10.17 9.81 9.96

2 2 9.95 9.77 9.94 10.20

2 3 9.98 9.73 9.79 9.95

3 1 9.85 9.70 9.64 9.84

3 2 9.83 9.61 9.59 9.83

3 3 9.87 9.65 9.66 9.81

Average 9.89 9.71 9.75 9.89

std dev 0.058 0.185 0.126 0.129

Grand Average: 9.81

std dev: 0.094

Percent deviation 0.77 -1.03 -0.59 0.85

Lamp Efficiency

10.20

10.10

E

0

E

9.70 --

9.60

9.50

n

n

1 2

Laboratories

n

n

a

I

3 4

TABLE 3: Efficiency of Incandescent Lamp in Lumens per Watt (LPW)

Page 6

EE-DET-94-001 COMMENT 01
Energy Efficient Lighting Products Program

Power in Watts Laboratory Number

Lamp Run 1 2 3 4

1 1 7.29 7.15 7.10 7.15

1 2 7.28 7.13 7.10 7.13

1 3 7,41 7.12 7.00 7.09

2 1 7.31 7.09 7.00 7.12

2 2 7.37 7.06 7.00 7.13

2 3 7.32 7.08 6.90 7.10

3 1 7.34 7.07 7.00 7.11

3 2 7.46 7.10 7.00 7.04

3 3 7.33 7.11 7.00 7.01

Average 35 7.10 7.10

0

7.01

td .060 0.045 F____ dev 0. ________________

7.

059 0.029

Grand Average:

std dev:

Percent Deviation

0

-0.53

Lamp Power

n

7.14

0.014

2.89

i

1 2

Laboratories

3

-1.79 -0.58

n

4

TABLE 4: Electrical Power of Compact Fluorescent Lamp in Watts

7.5

7.4

7.3

7.0 -

6.9 4--

6.8

Page 7

EE-DET-94-001 COMMENT 01
Energy Efficient Lighting Products Program

Flux in Lumens Laboratory Number

Lamp Run 1 2 3 4

1 1 393.0 403.0 408.0 389.4

1 2 392.0 405.0 408.0 388.6

1 3 396.0 406.0 409.0 388.9

2 1 399.0 414.0 417.0 397.6

2 2 399.0 413.0 417.0 397.9

2 3 403.0 413.0 416.0 398.8

3 1 397.0 410.0 415.0 398.8

3 2 395.0 411.0 415.0 400.0

3 3 402.0 411.0 414.0 399.3

Average 397.3 409.6 413.2 395.5

std dev 3.8 1 om ^ 3.9 3.8 4.9

Grand Average:

std dev:

Percent Deviation

403.9

8.81

-1.62 1.40

Lamp Luminous Flux

2.31 -2.09

4200 -r

n

n

415.0 M

n

n

410 . 0 n

n

n

s

405.0 4 U

n

4000 - n

n

I

s

n

395.0 n

390.0 -

3850

1 2

Laboratories

3 4

TABLE 5: Luminous Flux of Compact Fluorescent Lamp in Lumens

Page 8

EE-DET-94-001 COMMENT 01
Energy Efficient Lighting Products Program

Efficiency in LPW Laboratory Number

Lamp Run 1 2 3 4

1 1 53.91 56.36 57.46 54.47

1 2 53.85 56.80 57.46 54.50

1 3 53.44 57.02 58.43 54.86

2 1 54.58 58.39 59.57 55.84

2 2 54.14 58.50 59.57 55.80

2 3 55.05 58.33 60.29 56.17

3 1 54.09 57.99 59.29 56.09

3 2 52.95 57.89 59.29 56.82

3 3 54.84 57.81 59.14 56.95

Average 54.09 57 .68 1 58.95 55.72

std dev 0.67 0.77 0.97 0.93

Grand Average: 56.61

std dev: 2.14

Percent Deviation -4.44 1.89 4.13 -1.57

Lamp Efficiency

61.0

60.0

590

U

58.0

57.0

CL

560

55.0

54.0

53.0

520

n

1 2 3 4

Laboratories

TABLE 6: Efficiency of Compact Fluoresecnt Lamp in

Lumens per Watt (LPW)

Page 9

EE-DET-94-001 COMMENT 01
Energy Efficient Lighting Products Program

Color Rendition Laboratory Number

Lamp Run 1 2 3 4

1 1 82.5 82.3 82.0 82.0

1 2 82.4 82.1 82.0 82.0

1 3 82.5 81.9 82.0 82.0

Average 82.47 82.10 82.00 82.00

std dev 0.06 0.20 0.00 0.00

x Chromaticity 1 2 3 4

1 1 0.4613 0.4638 0.4657 0.4624

1 2 0.4631 0.4625 0.4662 0.4622

1 3 0.4617 0.4625 0.4665 0.4624

Average 0.4620 0.4629 0.4661 0.4623

std dev 0.0009 0.0008 0.0004 1 0.0001

y Chromaticity 1 2 3 4

1 1 0.4093 0.4089 0.414-1 1 0.4107

1 2 0.4112 0.4099 0.4143 0.4111

1 3 0.4092 0.4102 0.4142 0.4112

Average 0.4099 0.4097

--

0.4142 0.4110

std dev 0.0011 0. 00 0.0001 0.0003

Color Rendering Index

8260

82.50

8240 -

Lo 82.30

C

82.20

U 82.10

Lab 1 Lab 2

LABORATORIES

Lab 3 Lab 4

Table 7: Color Rendition and Chromaticity of Compact Fluorescent Lamps

Page 10

EE-DET-94-001 COMMENT 01
Energy Efficient Lighting Products Program

Power in Watts Laboratory Number

Lamp Run 1 2 3 4

1 1 31.37 30.44 32.30 30.96

1 2 31.14 30.42 3240 30 73

1 3 31.13 30 47 32.50 30.71

2 1 31.05 30.37 32.30 30.82

2 2 31.06 30.43 32.30 30.81

2 3 31.14 30.34 32.30 30.87

3 1 31.16 30.50 32.30 30.84

3 2 30.98 30-78 32.20 30.59

3 3 31.15 30.76 32.40 30.57

31.13 30.50 32.33 30.77 I

Average

std dev 0.11 0 16 0.09 0,13

Grand Average:

std dev:

Percent Deviation

32.5 T

32.0 -

31.5

cn

t3

its

1.0 -^

30.5

300

31.18

0.81

-0.17

I

0

-2.19

Lamp Power

3691 -1.34

1 2 ' 3 4

Laboratories

TABLE 8: Electrical Power of Linear Fluorescent Lamp in Watts

EE-DET-94-001 COMMENT 01
Energy Efficient Lighting Products Program

Flux in Lumens Laboratory Number

Lamp Run 1 2 3 4

1 1 2715 2604 2768 2541

1 2 2720 2596 2767 2557

1 3 2712 2599 2766 2574

2 1 2743 2613 2783 2563

2 2 2738 2601 2787 2588

2 3 2759 2599 2787 2574

3 1 2746 2614 2807 2536

3 2 2748 2610 2806 2523

3 3 2739 2610 2804 2587

Average 2736 2605 2786 2560

std dev 16 .2 6.8 16.8 23.0

Grand Average: 2671.8

std dev: 106.46

Percent Deviation 2.39 -2.50 4.28 X117

Lamp Luminous Flux

2850

2800

2750

2700

2600

2550

2500

i

D

I

I

I

1 2 3 4

Laboratories

TABLE 9: Luminous Flux of Linear Flourescent Lamp in Lumens

n

I

n

Page 12

EE-DET-94-001 COMMENT 01
Energy Efficient Lighting Products Program

Efficiency in LPW Laboratory Number

Lamp Run 1 2 3 4

1 1 86.55 85.55 85.70 82.07

1 2 87.35 85.34 85.40 83.21

1 3 87.12 85.30 85.11 83.82

2 1 88.34 86.04 86.16 83.16

2 2 88.15 85.47 86.28 84.00

2 3 88.60 85.66 86.28 83.38

3 1 88.13 85.70 86.90 82.23

3 2 88.70 84.80 87.14 82.48

3 3 87.93 84.85 86.54 84.63

Average 87.87 85.41 86.17 83.22

std dev 0.72 0.40 0.67 0.85

Grand Average: 85.67

std dev: 1.93

Percent Deviation 2.57 -0.30 0,58 -2.86

Lamp Efficiency

1 2

Laboratories

n

n

•

3 4

TABLE 10: Efficiency of Linear fluorescent lamp in Lumens per Watt(LPW)

8900

n

88.00

87 00

n

86 00 • n

n

85.00

84.00

8300

82.00

81.00

Page 13

EE-DET-94-001 COMMENT 01
Energy Efficient Lighting Products Program

Color Rendition Laboratory Number

Lamp Run 1 2 3 4

1 1 80.7 79.7 82.0 80.0

1 2 80.6 79.7 82.0 80.0

1 3 80.7 80.0 82.0 80.0

Average 80.67 79.80 82.00 80.00

std dev 0.06 0.17 0.00 0.00

x Chromaticity 1 2 3 4

1 1 0.4139 0.4153 0.4180 0.4158

1 2 0.4141 0.4155 0.4181 0.4157

1 3 0.4144 0.4161 0.4178 0.4148

Average 0.4141 0.4156 0.4180 0.4154

std dev 0.0003 0.0004 0.0002 0.0006

y Chromaticity 1 2 3 4

1 1 0.3904 0.3928 0.3953 0.3950

1 2 0.3913 0.3930 0.3953 0.3948

1 3 0.3914 0.3927 0.3948 0.3937

Average 0.3910 0.3928 0.3951 0.3945

std dev 0.0006 0.0002 0.0003 0.0007

Color Rendering Index

82.00

81 50

F? 81 00

80 50

80 00 n

79 50

Lab 1 Lab 2 Lab 3 Lab 4

LABORATORIES

TABLE 11: Color Rendition and Chromaticity of Linear Fluorescent Lamps

Page 14

EE-DET-94-001 COMMENT 01
Energy Efficient Lighting Products Program

TABLE 12 A. SUMMARY OF LAMP POWER FOR THE THREE TYPES OF LAMPS

Lamp Power

Lamp Type

Incandescent Compact Fluorscent Linear Fluorescent

Grand Mean 71.82 7.14 31.18

Std Dev 0.07 0.01 0.81

CoV, percent 0.10 0.20 2.59

Range 0.15 0.33 1.83

Range 0.21 4.68 5.88

TABLE 12B. SUMMARY OF LAMP LUMINOUS FLUX FOR THE THREE TYPES OF LAMPS

Lamp Luminous Flux (Lumens)

Lamp Type

Incandescent Compact Fluorscent Linear Fluorescent

Grand Mean 704.63 403.90 2671.78

Std Dev 6.94 8.81 106.46

CoV, percent 0.98 2.18 3.98

Range 14.03 17.75 225.78

% Range 1.99 4.39 8.45

TABLE 12C.. SUMMARY OF LAMP EFFICIENCY FOR THE THREE TYPES OF LAMPS

Lamp Efficiency ( Lumens per Watt)

Lamp Type

Incandescent Compact Fluorscent Linear Fluorescent

Grand Mean 9.81 56.61 85.67

Std Dev 0.09 2.14 1.93

CoV, percent 0.96 3.78 2.25

Range 0.18 4.85 4.65

% Range 1.88 8.57 5.88

Definitions for the three tables (12A-12C):

Std Dev indicates standard deviation of the grand mean.

CoV indicates the coefficient of variation of the grand mean: 100* (Std Dev)/Grand Mean,

Range is the difference between the maximum and minimum average varies reported

by the four laboratories.

% Range is the ratio of the range to the grand mean times 100.

Page 1.^

EE-DET-94-001 COMMENT 01
APPENDIX EEL Round One Proficiency Test Data

Lab No. 1 Incandescent

Lp No. Run Current

Amps

Power

Watts

Flux

Lumens

Efficiency

LPW

1 1 0.5991 71.90 710.1 9.88

1 2 0.5993 71.90 709.4 9.87

1 3 0.5991 71.90 705.1 9.81

Averag e 0.5992 71 .90 708.2 9.85

std dev 0.0001 0.00 2.7 0.04

2 1 0.6021 72.30 718.9 9.94

2 2 0.6018 72.20 718.4 9.95

2 3 0.6015 72.20 720.4 9.98

Average 0.6018 7223 719.2 9.96

std dev 0.0003 0.06 1.0 0.02

3 1 0.5968 71.60 705.5 9.85

3 2 0.5968 71.60 703.9 9.83

3 3 0.5974 71.60 706.6 9.87

Average 0. 5970 71 .60 705.3 9.85

std dev 0.0003 0.00 1 .4 0.02

Lab No. 2 Incandescent

Lp No. Run Current

Amps

Power

Watts

Flux

Lumens

Efficiency

LPW

1 1 0.5979 71.75 689.0 9.60

1 2 0.5973 71.68 687.0 9.58

1 3 0.5974 71.69 686.0 9.57

Average 0.5975 71.71 687.3 9.59

std dev 0.0003 0.04 1 .5 0.02

2 1 0.6048 72.58 738.0 10.17

2 2 0.5996 71.95 703.0 9.77

2 3 0.5997 71.97 700.0 9.73

Average 0.6014 72.17 713.7 9.89

std dev 0.0030 0.36 21.1 0.24

3 '1 0.5956 71.47 693.0 9.70

3 2 0.5947 71.37 686.0 9.61

3 3 0.5958 71.50 690.0 9.65

Averag e 0.5954 71.45 689.7 9.65

std dev 0.0006 0.07 3.5 0.04

TABLE 13A: Incandescent Lamp Data

Page 1(^

EE-DET-94-001 COMMENT 01
APPENDIX EEL Round One Proficiency Test Data

Lab No. 3 Incandescent

Lp No. Run Current

Amps

Power

Watts

Flux

Lumens

Efficiency

LPW

1 1 0.6022 72.20 714.0 9.89

1 2 0.5976 71.70 690.0 9.62

1 3 0.6009 72.10 708.0 9.82

Average 0.6002 72.00 704.0 9.78

std dev 0.0024 0.26 12.5 0.14

2 1 0.6002 72.00 706.0 9.81

2 2 0.6027 72.30 719.0 9.94

2 3 0.6002 72.00 705.0 9.79

Average 0.6010 72. 10 710.0 9.85

std dev 0.0014 0.17 7.8 0.08

3 1 0.5960 71.50 689.0 9.64

3 2 0.5951 71.40 685.0 9.59

3 3 0.5955 71.40 690.0 9.66

Average 0.5955 71.43 688.0 9.63

std dev 0.0005 0.06 2.6 0.04

Lab No. 4 Incandescent

Lp No. Run Current

Amps

Power

Watts

Flux

Lumens

Efficiency

LPW

1 1 0.5979 71.75 704.6 9.82

1 2 0.5973 71.68 703.7 9.82

1 3 0.5979 71.75 703.7 9.81

Average 0. 5977 71 . 73 704.0 9.82

std dev 0.0003 0.04 0.5 0.01

2 1 0.6001 72.01 717.0 9.96

2 2 0.6044 72.53 739.9 10.20

2 3 0.6004 72.05 717.0 9.95

Average 0.6016 72.20 724.6 10.04

std dev 0.0024 0.29 13.2 0.14

3 1 0.5942 71.30 701.8 9.84

3 2 0.5949 71.39 701.8 9.83

3 3 0.5951 71.41 700.8 9.81

Average 0.5947 71.37 701.5 9.83

std dev 0.0005 0.06 0.6 0.01

TABLE 13B: Incandescent Lamp Data

Page 17

EE-DET-94-001 COMMENT 01
APPENDIX EEL Round One Proficiency Test Data

Lab No 1 Compact Fluorescent

Lp.

No.

Run Volts Current

Amps

Power

Watts

Flux

Lumens

Efficiency

LPW

Color

x

color

y

Color

Temp.

Color

Rend.

1 1 47.73 0.1780 7.29 393 53.91 0.4613 0.4093 2670 82.5

1 2 47.47 0.1780 7.28 392 53.85 0.4631 0.4112 2660 82.4

1 3 47.69 0.1780 7.41 396 53.44 0.4617 0.4092 2664 82.5

Average 47.63 0.1780 7. 33 394 53.73 0.4620 0.4099 2665 82.5

std dev .14 0.0000 .07 2 0.25

2 1 47.16 0.1780 7.31 399 54.58

2 2 47.03 0.1780 7.37 399 54.14

2 3 47.17 0.1780 7.32 403 55.05

Averag e 47.12 0. 1780 7.33 400 54.59

std dev .081 0 . 0000 .03 2 0.46

3 1 47.59 0.1780 7.34 397 54.09

3 2 47.46 0.1780 7.46 395 52.95

3 3 47.65 0.1780 7.33 402 54.84

Average 47.57 0. 1780 7. 38 398 53.96

std dev .10 0.0000 .07 4 0.951 1

Lab No 2 Com p act Fluorescent

Lp.

No.

Run Volts Current

Amps

Power

Watts

Flux

Lumens

Efficiency

LPW

Color

x

Color

y

Color

Temp.

Color

Rend.

1 1 47.89 0.1 771 7.15 403 56.36 0.4638 0.4089 2632 82.3

1 2 47.89 0.1773 7.13 405 56.80 0.4625 0.4099 2657 82.1

1 3 47.83 0.1773 7.12 406 57.02 0.4625 0.4102 2660 81.9

Average 47.87 0.1772 7. 13 405 56.73 0.4629 0.4097 2650 82.1

std dev .03 0.0001 .02 2 0.34

2 1 47.60 0.1778 7.09 414 58.39

2 2 47.35 0.1781 7.06 413 58.50

2 3 47.45 0.1780 7.08 413 58.33

Average 47.47 0. 1780 7.08 413 58.41

std dev .13 0.0002 .02 1 0.08

3 1 47.39 0.1779 7.07 410 57.99

3 2 47.62 0.1776 7.10 411 57.89

3 3 47.67 0.1776 7.11 411 57.81

Average 47.56 0.1777 7.09 411 57.89

std dev .15 0.0002 .02 1 0.09

TABLE 14A: Compact Fluorescent Lamp Data

Page 18

EE-DET-94-001 COMMENT 01
APPENDIX EEL Round One Proficiency Test Data

Lab No. 3 Compact Fluorescent

Lp.

No.

Run Volts Current

Amps

Power

Watts

Flux

Lumens

Efficiency

LPW

Color

x

Color

y

Color

Temp.

Color

Rend.

1 1 47.40 0.1770 7.10 408 57.46 0.4657 0.4141 2647 82.0

1 2 47.40 0.1770 7.10 408 57.46 0.4662 0.4143 2642 82.0

1 3 47.40 0.1770 7.00 409 58.43 0.4665 0.4142 2637 82.0

Average 47.40 0.1770 7.07 408 57.79 0.4661 0.4142 2642 82.0

std dev .00 0.0000 .06 1 0.56

2 1 46.60 0.1780 7.00 417 59.57

2 2 46.80 0.1780 7.00 417, 59.57

2 3 46.50 0.1780 6.90 416 60.29

Average 46.63 0. 1780 6.97 417 59.81

std dev .15 0.0000 .06 1 0.41

3 1 47.00 0.1780 7.00 415 59.29

3 2 46.80 0.1780 7.00 415 59.29

3 3 46.80 0.1780 7.00 414 59.14

Average 46.87 0.1780 7.00 415 59.24

std dev .12 0.0000 .00 1 0.08

Lab No 4 Compact Fluorescent

Lp.

No.

Run Volts Current

Amps

Power

Watts

Flux

Lumens

Efficiency

LPW

Color

x

Color

y

Color

Temp.

Color

Rend

1 1 47.66 0.1777 7.15 389 54.47 0.4624 0.4107 2667 82.0

1 2 47.39 0.1782 7.13 389 54.50 0.4622 0.4111 2670 82.0

1 3 47.24 0.1780 7.09 389 54.86 0.4624 0.4112 2670 82.0

Averag e 47.43 0.1780 7. 12 389 54.61 0.4623 0.4110 2669 82.0

std dev .21 0.0003 .03 0.22

2 1 47.46 0.1780 7.12 398 55.84

2 2 47.63 0.1781 7.13 398 55.80

2 3 47.38 0.1782 7.10 399 56.17

Average 47.49 0. 1781 7.12 398 55.94

std dev .13 0.0001 .02 1 0.20

3 1 47.78 0.1778 7.11 399 56.09

3 2 46.81 0.1791 7.04 400 56.82

3 3 46.87 0.1783 7.01 399 56.95

Average 47.15 0.1784 7.05 399 56.62

std dev .54 0.0006 .05 1 0.461 1

TABLE 14B: Compact Fluorescent Lamp Data

Page 11)

EE-DET-94-001 COMMENT 01
APPENDIX EEL Round One Proficiency Test Data

Lab No. 1 Linear Fluorescent

Lp.

No.

Run Volts Current

Amps

Power

Watts

Flux

Lumens

Efficiency

LPW

Color

x

Color

y

Color

Temp.

Color

Rend.

1 1 136.87 0.2630 31.37 2715 86.55 0.4139 0.3904 3315 80.7

1 2 136.11 0.2640 31.14 2720 87.35 0.4141 0.3913 3318 80.6

1 3 136.14 0.2640 31.13 2712 87.12 0.4144 0.3914 3311 80.7

Average X 36.3? {).237 '1=.3?E 1' `2716. -87.00'' -0.4141 0.3910 ' 3315 80.7

std dev .43 0.0006 .14 1 4 0.41

2 1 136.19 0.2630 31.05 2743 88.34

2 2 136.17 0.2630 31.06 2738 88.15

2 3 136.46 0.2640 31.14 2759 88.60

Aver e' 136.2 0.2633 31:08' 2747 88.3&

std dev .16 0.0006 .05 11 0.22

3 1 136.31 0.2640 31.16 2746 88.13

3 2 135.21 0.2640 30.98 2748 88.70

3 3 135.96 0.2640 31.15 2739 87.93

Average 135.83 0.2640' 31 .10 2744 88.25

std dev .56 0.0000 .10 5 0.40

Lab No. 2 Linear Fluorescent

Lp.

No.

Run Volts Current

Amps

Power

Watts

Flux

Lumens

Efficiency

LPW

Color

x

Color

y

Color

Temp.

Color

Rend.

1 1 133.12 0.2681 30.44 2604 85.55 0.4153 0.3928 3304 79.7

1 2 132.98 0.2680 30.42 2596 85.34 0.4155 0.3930 3302 79.7

1 3 133.30 0.2678 30.47 2599 85.30 0.4161 0.3927 3287 80.0

Average 133.13 0.2680 30.44 2600 85.39 0.4156 0.3928 3298 79.8

std dev .16 0.0002 .03 4 0.13

2 1 132.50 0.2683 30.37 2613 86.04

2 2 132.89 0.2675 30.43 2601 85.47

2 3 132.10 0.2688 30.34 2599 85.66

Average 132. 50 0.2682 30. 38 2604 85.73

std dev .40 0.0007 .05 8 0.29

3 1 133.30 0.2672 30.50 2614 85.70

3 2 134.33 0.2672 30.78 2610 84.80

3 3 134.36 0.2668 30.76 2610 84.85

Average 134.00 0.2671 30.68 2611 85.12

std dev .60 0.0002 .16 2 0.51

TABLE 1 -A: Linear Fluorescent Lamp Data

Page 20

EE-DET-94-001 COMMENT 01
APPENDIX EEL Round One Proficiency Test Data

Lab No. 3 Linear Fluorescent

Lp.

No.

Run Volts Current

Amps

Power

Watts

Flux

Lumens

Efficiency

LPW

Color

x

Color

y

Color

Temp.

Color

Rend.

1 1 135.90 0.2610 32.30 2768 85.70 0.4180 0.3953 3273 82.0

1 2 136.30 0.2610 32.40 2767 85.40 0.4181 0.3953 3271 82.0

1 3 137.20 0.2600 32.50 2766 85.11 0.4178 0.3948 3273 82.0

Average 136.47 0.2607 32.40 2767 85.40 0.4180 0.3951 3272 82.0

std dev .67 0.0006 .10 1 0.29

2 1 135.10 0.2620 32.30 2783 86.16

2 2 135.20 0.2620 32.30 2787 86.28

2 3 135.70 0.2620 32.30 2787 86.28

Average 135. 33 0.2620 32.30 2786 86.24

std dev .32 0.0000 .00 2 0.07

3 1 134.60 0.2620 32.30 2807 86.90

3 2 134.80 0.2620 32.20 2806 87.14

3 3 135.20 0.2620 32.40 2804 86.54

Average 134.87 0.2620 32.30 2806 86.86

std dev .31 0.0000 .10 2 0.30

Lab No. 4 1 Linear Fluorescent

Lp.

No.

Run Volts Current

Amps

Power

Watts

Flux

Lumens

Efficiency

LPW

Color

x

Color

y

Color

Temp.

Color

Rend.

1 1 134.93 0.2665 30.96 2541 82.07 0.4158 0.3950 3314 80.0

1 2 135.48 0.2647 30.73 2557 83.21 0.4157 0.3948 3318 80.0

1 3 135.88 0.2643 30.71 2574 83.82 0.4148 0.3937 3325 80.0

Averag e 135 .43 0.2652 30.80 2557 83.03 0.4154 0. 3945 3319 80.0

std dev .48 0.0012 .14 17 0.88 1

2 1 136.22 0.2636 30.82 2563 83.16 1

2 2 135.44 0.2648 30.81 2588 84.00

2 3 135.63 0.2654 30.87 2574 83.38

Average 135. 76 0.2646 30.83 2575 83.51

std dev .41 0.0009 .03 1 3 0.43

3 1 135.66 0.2647 30.84 2536 82.23

3 2 135.61 0.2638 30.59 2523 82.48

3 3 135.11 0.2646 30.57 2587 84.63

Averag e 135 .46 0.2644 30.67 2549 83.11

std dev .30 0.0005 .15 34 1.32

TABLE l:5B: Linear Fluorescent Lamp Data

Page 2 1

EE-DET-94-001 COMMENT 01