Pure Tone Air Conduction Threshold Audiometry for Hearing Conservation
1. Scope
1.1 This Standard specifies procedures and requirements for Pure Tone Air Conduction Threshold Audiometry, without masking, used in hearing conservation programs. It is especially applicable to individuals whose hearing sensitivity might be adverse ly affected by occupational noise exposure. The procedures in this Standard are to be used to identify individuals who are at risk…
This National Standard of Canada is equivalent to American National Standard
ANSI/BHMA A156.4-1986.
1.1
This standard contains requirements for door closers surface mounted, concealed
in the door, overhead concealed and concealed in the floor. Also included are
pivots and thresholds for floor closers. Criteria for conformance include
cycle, operational, closing force and finish tests.…
This National Standard of Canada is equivalent to American National Standard
ANSI/BHMA A156.6-1986.
1.1
This Standard contains requirements for door protection plates, door edgings,
push plates, door pulls, push bars and pull bars. Included are strength and
finish tests, and dimensional and material criteria.
1.2
Tests described in this Standard are performed under laboratory…
This National Standard of Canada is equivalent to American
National Standards Institute standard ANSI/BHMA A156.8-1982 in
total, without any modification. It establishes requirements for
overhead door holders and includes performance tests covering
operational, cyclical, strength and finish criteria.
This National Standard of Canada equivalent to American
National Standards Institute standard ANSI/BHMA A156.9-1982. It
contains requirements for cabinet hardware and includes hinges,
knobs, pulls, catches, shelf rests, standards and brackets,
drawer slides, rotating shelves and track with guides for sliding
panels. Included are performance tests covering operational,
cyclical, strength,…
Filters for the measurement of audible sound in the presence of ultrasound
This standard specifies the electrical characteristics of a U-weighting filter mainly for use with sound level meters meeting the requirements of IEC 651 for the measurement of audible sound in the presence of ultrasound.
1.1 Scope
1.1.1 This standard covers separately constructed draft hoods for installation on appliances required to be vented. A draft hood supplied as part of a listed appliance is certified as part of the appliance under the applicable provisions of the individual appliance standard.
1.1.2 This standard applies to newly produced draft hoods (see Part IV, Definitions) constructed…
Copper and copper alloys — Estimation of average grain size
Specifies three procedures for estimating, and rules for expressing, the average grain size of copper and copper alloys consisting principally of a single phase. The comparison procedure (comparing the specimen with a standard chart) is most convenient and is sufficiently accurate for most commercial purposes. In cases of dispute the use of the Heyn or Jeffries procedures (intercept procedure and…
Standard for Residential Fire Warning System Control Units
Covers requirements for residential fire warning system control units and accessories intended to be installed in accordance with the Standard for the Installation of Residential Fire Warning Systems, CAN/ULC-S540-M86.
