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定价： 50元 / 折扣价： 43 元

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The purpose of this standard is to specify performance criteria and type-test methods used to evaluate portable radiation detection instruments. These instruments are used for detection of photon emitting radioactive materials and photon exposure rates. Instruments are used for the purposes of detection, interdiction and prevention. Instruments may include alarms to indicate an increase in exposure rate. This standard does not apply to instruments that are primarily intended to provide a… read more measurement of dose equivalent rate. In a departure from other DHS-related ANSI N42 instruments standards, some issues of Radiological/Nuclear initial response (R/N initial response) are discussed. A tactical description of R/N initial response is provided in this revised standard in Annex H and is generally linked to related R/N initial response instrumentation situations in ANSI N42.32, ANSI N42.34, ANSI N42.35, ANSI N42.38, ANSI N42.43, ANSI N42.53, and directly linked to ANSI N42.49A. This direct link is from a portable instrument with low exposure rate range to a portable instrument of a much higher exposure rate range. This instrument range change may be necessary in some R/N initial response situations. read less

定价： 106元 / 折扣价： 91 元

This guide provides references to the appropriate methodology for classifying Internet of Things (IoT) devices based on radio frequency (RF) exposure characteristics. The use and operating modes for a wide variety of devices are considered by grouping them into several deployments and following an appropriate assessment route. Classification of devices is based on frequency, bandwidth, radiated power, and typical installation configuration. The methodology applies to both the short-range (from… read more less than 1 m to 1 km) and long-range (greater than 1 km) technologies that operate from 0 Hz up to 300 GHz frequency range. The available standards and documents applicable for the compliance assessment of IoT technologies/solutions are identified in this guide. Links between device class and available measurement/computational standards are provided. Included within this document is guidance for exclusion classes, exposure assessments, and solutions to address situations where guidance is unavailable. This guide does not specify measurement and computational methods to assess the exposure of IoT devices, even in the cases there are no appropriate assessment methods. Instead, this guide indicates gaps in available assessment methods, but is not intended to establish the assessment methodology read less

定价： 103元 / 折扣价： 88 元

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Develop safety levels for human exposure to electromagnetic fields from 0 to 3kHz. This standard will be based on the results of an evaluation of the relevant scientific literature and proven effects which are well established and for which thresholds of reaction are understood. Field limits will be derived from threshold current densities or internal electric fields.

定价： 101元 / 折扣价： 86 元

The scope of this standard is to establish minimum performance criteria and test requirements for nonalarming radiation detectors used to manage the exposure of emergency responders to photon radiation. The detectors shall provide rapid and clear indication of the level of radiation exposure. Emergency responders include fire services, law enforcement, and medical services. Other possible users include critical infrastructure key resources (CIKR) such as heavy equipment, transportation, and… read more utility personnel and members of the public who may be involved in emergency situations. PERDs can be of two types, either alarming electronic or non-alarming. Both types of PERDs have radiation response ranges appropriate for radiation emergencies. Alarming PERDS are addressed in ANSI/IEEE N42.49A [B8].1 (Alarming PERDS can alarm on exposure rate, accumulated exposure, or both.) Non-alarming PERDs are ionizing photon radiation measuring devices that provide a visual indication of the accumulated exposure to the user and are designed to be worn or carried on the body of the user. These detectors do not have an audible or visual alarm. These detectors should provide an indication when recommended exposure guidance levels have been reached or exceeded. The typical users of non-alarming PERDs are responders performing time-sensitive, critical missions such as saving lives or property, and/or otherwise mitigating the effects of radiological emergencies. This standard provides a graded approach to assessing the performance of multiple types of non-alarming radiation detectors. The applicability of each type should be evaluated by the user. These detectors may include carbon fiber detectors and self-developing photochemical detectors. The carbon fiber detectors are designed for many reuses as described in ANSI N322-2009. The photochemical detectors are designed for a single emergency exposure or use. PERDs are not used to monitor personnel exposure for the purposes of confirming compliance with regulatory exposure limits, i.e., their indications are not intended to be used for accumulated exposure monitoring records for individuals, but are intended for emergency use. read less

定价： 70元 / 折扣价： 60 元

This standard establishes minimum performance criteria and test requirements for non-alarming radiation detectors used to manage the exposure of emergency responders to photon radiation.

定价： 69元 / 折扣价： 59 元

The scope of this standard is to establish minimum performance criteria and test requirements for four categories of alarming electronic radiation measurement instruments used to manage exposure by alerting the emergency responders when they are exposed to photon radiation. The instruments provide rapid and clear indication of the level of radiation exposure and/or exposure rate and readily recognizable alarms. The alarms are both audible and visual, and distinguishable between exposure rate… read more and exposure. Vibratory alarms are optional. Emergency responders include fire and rescue services, law enforcement, and medical services. Other possible users include Critical Infrastructure Key Resources (CIKR) such as heavy equipment, transportation, and utilities personnel. read less

定价： 99元 / 折扣价： 85 元

Develop revised maximum permissible exposure (MPE) levels for exposures to electromagnetic fields for exposures in controlled and uncontrolled environments at frequencies between 3 kHz and 300 Ghz. The MPEs will be expressed in terms of quantifiable parameters such as electric-field strength, magnetic-field strength, power density, induced current and contact current. Exclusions and peak limits for pulsed fields will be included.

定价： 104元 / 折扣价： 89 元

This standard specifies exposure criteria and limits to protect against established adverse health effects in humans associated with exposure to electric, magnetic, and electromagnetic fields in the frequency range of 0 Hz to 300 GHz.1,2 These limits, incorporating safety margins, are expressed in terms of dosimetric reference limits (DRL) and exposure reference levels (ERL). DRLs are expressed in terms of in situ electric field strength, specific absorption rate (SAR), and epithelial power density. ERLs, which are more easily determined, are limits on external electric and magnetic fields, incident power density, induced and contact currents, and contact voltages intended to ensure that the DRLs are not exceeded. The limits, which protect against adverse health effects associated with electrostimulation of tissue and local and whole-body heating, are intended to apply to the described human exposure conditions. However, these levels are not intended to address exposures of patients or human research subjects under the care of medical professionals for which other risks and benefits might apply. These exposure limits might not prevent interference with medical and other devices that might exhibit susceptibility to electromagnetic interference (EMI).

定价： 370元 / 折扣价： 315 元

The scope of this standard is to establish minimum performance criteria and test requirements for nonalarming radiation detectors used to manage the exposure of emergency responders to photon radiation. The detectors shall provide rapid and clear indication of the level of radiation exposure. Emergency responders include fire services, law enforcement, and medical services. Other possible users include critical infrastructure key resources (CIKR) such as heavy equipment, transportation, and… read more utilities personnel and members of the public who may be involved in emergency situations. read less

定价： 81元 / 折扣价： 69 元

This recommended practice describes methods for measuring and computing external electric, magnetic, and electromagnetic fields to which persons could be exposed over the frequency range of 0 Hz to 300 GHz. Instrument characteristics and the methods of calibrating such instruments, and methods for computation and measurement of the resulting fields and currents that are induced in bodies of humans exposed to these fields, are included.

定价： 225元 / 折扣价： 192 元