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Porter, N D (1997) Night noise contours: a feasibility study. NPL Report. CMAM 4
Porter, N D; Berry, B F (1997) A study of standard methods for measuring the sound quality of industrial products: final report. NPL Report. CIRA(EXT)021
Porter, N D (1995) Study of the application of British Standard BS 4142:1990 "Method for rating industrial noise affecting mixed residential and industrial areas" (The data sheet study). NPL Report. RSA(EXT)0057A
Porter, N D (1995) The assessment of industrial noise - a review of various national practices. NPL Report. RSA(EXT)0057B
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Flindell, I H*; Porter, N D; Berry, B F (1997) The assessment of environmental noise - the revision of ISO 1996. Acoust. Bull., 22 (6). pp. 5-10.
Porter, N D (1995) Working within the SAVANTE network of the EC Human Capital and Mobility Programme. Acoust. Bull., 20 (1). 21 - 23
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Porter, N D (1993) Final results of the NPL data sheet study on BS 4142:1990. Proc. Inst. Acoust., 15 (8). pp. 149-158.
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Porter, N D; Flindell, I H*; Berry, B F (1993) An acoustic feature model for the assessment of environmental noise. Acoust. Bull. (Nov - ). pp. 40-48.
Porter, N D; Flindell, I H*; Berry, B F (1993) An acoustic feature model for the assessment of environmental noise. Proc. Inst. Acoust., 15 (3). pp. 1015-1024.
Porter, N D; Flindell, I H*; Berry, B F (1993) An acoustic feature model for the assessment of environmental noise. Proc. Inst. Acoust., 15 (3). pp. 1015-1024.
Porter, N D; Flindell, I H*; Berry, B F (1993) An acoustic feature model for the assessment of environmental noise. Acoust. Bull. (Novemb). pp. 40-48.
Berry, B F; Porter, N D; Flindell, I H (1998) The feasibility of linking future noise standards to health effects. In: NOISE EFFECTS '98, November 1998, Sydney, Australia.
Porter, N D (1995) Working within the SAVANTE network of the EC Human Capital and Mobility Programme. In: Proceedings of Euronoise '95, March 1995, Lyon.
Berry, B F; Porter, N D (1994) The evaluation of acoustic features in industrial noise. In: Internoise 94, 29 - 31 August 1994, Yokohama, Japan.
Berry, B F; Porter, N D (1993) Standards for industrial environmental noise exposure: current UK research (summary). In: 6th Int.Congress on Noise as a Public Health Problem: Noise and Man, 5-9 July 1993, Nice, France.
Berry, B F; Porter, N D (1993) Standards for industrial environmental noise exposure: current UK research. In: Proc. 6th Int. Congress of Noise as a Public Health Problem, 1993.
Porter, N D; Berry, B F (1993) Subjective effects and objective assessment of combined tonal and impulsive noise. In: 6th Int. Congress on Noise as a Public Health Problem: Noise and Man, 5-9 July 1993, Nice, France.