Supplementry Issue 2003

Preface
v

Quality Management in Geochemical Analyses
V. Balaram

1
Measurement Assurance within the Laboratory
Kowasalya Varadan, G. Sujatha and B.S. Kumar
7
Calibration Methods for Solar Cells and Panels
B.C. Chakravarty
15
Differential Pressure Measurements through Automated Data Acquisition
Nita Dilawar, D. Varandani, A.K. Bandyopadhyay and A.C. Gupta
25
Vapour Pressure Calculations Based on the International Temperature Scale (ITS-90) Used in the Computation of Relative Humidity
Hari Kishan, Jokhan Ram, Bhikham Singh, J.P. Singh and Deepti Chadha
35
Automatic and Manual Calibration of High Precision Multifunction Calibrator
V.N. Ojha, Ajeet Singh, Shiv Kumar Jaiswal and Sudhir K. Sharma
43
Calibration of National Standards of Resistance using Newly Established Automatic Direct Current Comparator Resistance Bridge
Ajeet Singh and V.N. Ojha
49
Traceability and Calibration - A Case Study
Sudhir K. Sharma, V.N. Ojha, Ajeet Singh, S.K. Jaiswal and Rina Sharma
57
Infrared Spectroscopic Studies on a Dehydrophenylalanine Acid Containing Model Peptide : Boc-Ala-(þPhe)4 - NHMe
Alka Gupta, Ranjana Mehrotra, S.P. Varma, R.M. Joshi and V.S. Chuhan
63
Calibration of Broad Band UV Intensity Meters
R.K. Garg and R.S. Ram
67
Theoretical and Experimental Estimation of Uncertainty of Measurement
Atul Dev and P.P. Marwah
73
Uncertainty Evaluation of High Value Standard Resistors using Automatic High Resistance Bridge and Digital Teraohmmeter
Shiv Kumar Jaiswal, Ajeet Singh and V.N. Ojha
81
Calibration and Estimation of Uncertainty of Reference Standard of Voltage Using Newly Established Bank of Zener Reference Standard
V.N. Ojha and Sudhir K. Sharma
87
Establishment of DC High Voltage Calibration Laboratory upto 100 kV at NPL
K.B. Ravat and S.K. Mahajan
95
A Working Estimate of Measurement Repeatability and Within-laboratory Reproducibility for Sound Transmission through Wall Panels
Mahavir Singh, K.K. Pujara and V. Mohanan
101
Length Measurement at National Metrology Laboratory, SIRIM Berhad, Malaysia
M.D. Ahmad, S.F. Chen and M.N.M. Chik
107
Corrosion Study of Materials Used for Fabricating Mass Standards
M.L. Das and T. Lal
115
Participation of NPL-India in CCEM-K8 Key Comparison of DC Voltage Ratios
S.K. Mahajan, Ajeet Singh, V.N. Ojha and A.K. Gupta
119
Recent Trends and Accuracies Involved in Contact-Less Measurements Using Image Processing Techniques with Special Focus on Material Testing
J.C. Padte and N.J. Padte
125
Generation of Pressures at NPL, New Delhi for CCM Key Comparison CCM.P-K3 in Absolute Pressure (10 -3 Pa to 10 -6 Pa)
Pardeep Mohan
131
Stability and Reproducibility of a 133 Cs-Beam Frequency Standard
M.S. Santos, A. Bebeachibuli, D.V. Magalha' es, F. Teles and V.S. Bagnato
139
Characterization of Aerosols in an Urban Residential Environment
Kavita Rai, Ajit Kumar Sarkar and A.P. Mitra
147
Application of Fusion Technique in Synthetic Diamond for Determination of Impurities by Flame Atomic Absorption Spectrometry
Nahar Singh, Rashmi and A.K. Sarkar
153
Preparation and Characterization of Standard Gold Resolution Test Specimen for Electron Microscopy
A.K. Srivastava, Kasturi Lal, Sukhvir Singh and Ram Kishore
159
Digital Displacement Measurement Using Differential Moiré Signals Hideo Uchida, Rina Sharma, Vijay T. Chitnis, Lizhong Zhou
Hideo Furuhashi and Yoshiyuki Uchida
165
Importance of Reference Materials in the Analysis of Environmental Samples by ICP-MS- A Case Study
U.C. Kulshrestha, T. Nageswar Rao, A.S.R. Krishnamurthy and G.S.R. Sastry
173
Time and Frequency Activities at CENAM J.M.-López-Romero, I. Domínguez López, S. López-López, E. De Carlos-López
F. Jiménez-Tapia and E. Marquina-Cruz
177
Infrared Spectroscopy in Sugar Industry : An Overview
Ranjana Mehrotra and S.P. Varma
189
Synchronisation of Slave Clocks through Local Exchange Network Using Teleclock Service
P. Banerjee and A.K. Suri
197
Antireflection Coatings of Glass for Use at 852-nm Wavelength, for Windows of UHV Chamber of Laser Cooled Cesium Fountain Clock at NPL
A.Basu and R. Bhattacharyya
203
Design of Vibration Isolation Systems for Metrological Laboratories in Industrial Environment
Ratish Jain and S.N. Bagchi
211
Atomic Absorption Spectrophotometric Method for the Determination of Phosphorus in Different Alloys
Ajit Kumar Sarkar and Niranjan Singh
217
Ionization Chamber Wall Correction Factors in Measuring Air Kerma for Gamma Rays
Nobuhisa Takata, Tadahiro Kurosawa and Yasuji Koyama
223
Results of International Intercomparison of ac-dc Voltage Transfer Standards at the Lowest Attainable Level of Uncertainty
V.K. Rustagi and A.K. Govil
229
Studies on Spectrophotometrically Analysed Reference Materials of Trace Metals, Ions and Pesticide
R.S. Shukla and S.H. Mehta
237
Measurement of Reflection and Transmission Phase at HF & Microwave Frequencies
Ram Swarup and P.S. Negi
241
Performance of an Integrated Resistance Measurement System
Lawrence Heal and Xiangxiao Qiu
249
Inductance Calibration in the Frequency Range from 50 Hz to 1MHz at PTB
R. Hanke, A. Kölling and J. Melcher
255
Spectrophotometric Determination of Sulphur Dioxide (Sulphite) in Environmental Samples
Ajit K. Sarkar, Mewa Singh, Niranjan Singh and Kavita Rai
261
Anomalous Behavior of Spectra at Wavefront Dislocations
H.C. Kandpal and Suman Anand
267
Phenomenon of 1 X N Spectral Switch due to Diffraction of Partially Coherent Light-An Experimental Study
Suman Anand, B.K. Yadav and H.C. Kandpal
275
International Activities on Standards and Standardization for the Evaluation of Material Properties to Support Free Trade
G.W. Bahng
283

Programme on Preparation and Dissemination of Certified Reference Materials in India
A.K. Agrawal, Krishan Lal, R.K. Saxena, Abha Bhatnagar and Sunita Ganju

291

Author Index

299