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B51-14 (R2019) – Boiler, pressure vessel, and pressure piping code

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CSA C22.2 NO. 62841-2-6:22 – Electric motor-operated hand-held tools, transportable tools and lawn and garden machinery — Safety — Part 2-6: Particular requirements for hand-held hammers (Binational standard with UL 62841-2-6)

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CSA C22.2 NO. 62841-2-6:22/A1:24 – Amendment 1:2024 to CSA C22.2 NO. 62841-2-6:22, Electric motor-operated hand-held tools, transportable tools and lawn and garden machinery — Safety — Part 2-6: Particular requirements for hand-held hammers (Binational standard with UL 62841-2-6)

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CAN/CSA-C22.2 NO. 62841-2-5:16 (R2026) – Electric motor-operated hand-held tools, transportable tools and lawn and garden machinery – Safety – Part 2-5: Particular requirements for hand-held circular saws (Bi-national standard with UL 62841-2-5)

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CAN/CSA-C22.2 NO. 62841-2-5:16 (R2026)/A1:26 – Amendment 1:2026 to CAN/CSA-C22.2 NO. 62841-2-5:16, Electric motor-operated hand-held tools, transportable tools and lawn and garden machinery – Safety – Part 2-5: Particular requirements for hand-held circular saws (Bi-national standard with UL 62841-2-5)

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CAN/CSA-C22.2 No. 62841-2-4:15/A1:26 – Amendment 1:2026 (IDT) to CAN/CSA-C22.2 No. 62841-2-4:15, Electric motor-operated hand-held tools, transportable tools and lawn and garden machinery — Safety — Part 2-4: Particular requirements for hand-held sanders and polishers other than disc type (Bi-national standard with UL 62841-2-4)

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CAN/CSA-C22.2 NO. 62841-2-4:15 (R2025) – Electric motor-operated hand-held tools, transportable tools and lawn and garden machinery — Safety — Part 2-4: Particular requirements for hand-held sanders and polishers other than disc type (Bi-national standard with UL 62841-2-4)

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CSA C22.2 NO. 62841-2-3:21/A1:26 – Amendment 1:2026 to CSA C22.2 No. 62841-2-3:21, Electric motor-operated hand-held tools, transportable tools and lawn and garden machinery — Safety — Part 2-3: Particular requirements for handheld grinders, disc-type polishers and disc-type sanders (Binational standard with UL 62841-2-3)

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CSA C22.2 NO. 62841-2-23:25 – Electric motor-operated hand-held tools, transportable tools and lawn and garden machinery — Safety — Part 2-23: Particular requirements for hand-held die grinders and small rotary tools (Binational standard with IEC 62841-2-23)

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CAN/CSA-C22.2 NO. 62841-2-21:18/A1:26 – Amendment 1:2026 to CAN/CSA-C22.2 No. 62841-2-21:18, Electric motor-operated hand-held tools, transportable tools and lawn and garden machinery – Safety – Part 2-21: Particular requirement for hand-held drain cleaners (Adopted amendment 1:2024 to IEC 62841-2-21)

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ISO 1999:2013

ISO 1999:2013 Acoustics – Estimation of noise-induced hearing loss

CDN $259.00

SKU: d476176d8db3 Categories: ,

Description

ISO 1999:2013 specifies a method for calculating the expected noise-induced permanent threshold shift in the hearing threshold levels of adult populations due to various levels and durations of noise exposure; it provides the basis for calculating hearing disability according to various formulae when the hearing threshold levels at commonly measured audiometric frequencies, or combinations of such frequencies, exceed a certain value.

The measure of exposure to noise for a population at risk is the noise exposure level normalized to a nominal 8 h working day, LEX,8h, for a given number of years of exposure. ISO 1999:2013 applies to noise at frequencies less than approximately 10 kHz which is steady, intermittent, fluctuating, irregular. Use of ISO 1999:2013 for sound pressures exceeding 200 Pa (140 dB relative to 20 µPa) is recognized as extrapolation.

Edition

3

Published Date

2013-09-23

Status

PUBLISHED

Pages

23

Language Detail Icon

English

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Abstract

ISO 1999:2013 specifies a method for calculating the expected noise-induced permanent threshold shift in the hearing threshold levels of adult populations due to various levels and durations of noise exposure; it provides the basis for calculating hearing disability according to various formulae when the hearing threshold levels at commonly measured audiometric frequencies, or combinations of such frequencies, exceed a certain value.

The measure of exposure to noise for a population at risk is the noise exposure level normalized to a nominal 8 h working day, LEX,8h, for a given number of years of exposure. ISO 1999:2013 applies to noise at frequencies less than approximately 10 kHz which is steady, intermittent, fluctuating, irregular. Use of ISO 1999:2013 for sound pressures exceeding 200 Pa (140 dB relative to 20 µPa) is recognized as extrapolation.

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