Fire hazard testing - Part 2-11: Glowing/hot-wire based test methods - Glow-wire flammability test m...
Specifies the details of the glow-wire test to be applied to end-products for fire hazard testing.
For the purpose of this standard, end-product means electrotechnical equipment, its subassemblies, and components.
Has the status of a basic safety publication in accordance with IEC Guide 104.
The contents of the corrigendum of January 2001 have been included in this copy.
Precast Concrete - Materials and Construction/Qualification Code for Architectural and Structural Pr...
1. Scope
A23.4-00
1.1 General
This Standard provides requirements for materials to be used and methods to be followed in the manufacture, transportation, and erection of architectural, structural, and specialty precast concrete products.
Notes:
(1) When this Standard is followed, good control over dimensions, appearance, and performance of precast concrete products can be…
1. Scope
1.1 General
This Standard provides requirements for materials to be used and methods to be
followed in the manufacture, transportation, and erection of architectural,
structural, and specialty precast concrete products.
Notes:
(1) When this Standard is followed, good control over dimensions, appearance,
and performance of precast concrete products can be obtained.
(2) This…
Low voltage surge protective devices - Part 21: Surge protective devices connected to telecommunicat...
Is applicable to devices for surge protection of telecommunications and signalling networks against indirect and direct effects of lightning or other transient overvoltages. The purpose of these SPDs is to protect modern electronic equipment connected to telecommunications and signalling networks with nominal system voltags up to 1 000 V (r.m.s.) a.c. and 1 500 V d.c. The contents of the…
Animal feeding stuffs — Determination of potassium and sodium contents — Methods using flame-emissio...
This International Standard specifies a calibration method and a standard addition method for the determination of
potassium and sodium contents of animal feeding stuffs by flame-emission spectrometry.
The standard addition method applies if it is not known whether the emissions measured for potassium or sodium
are subject to matrix effects. The limit of determination for potassium and sodium is…