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…
Carbonaceous materials used in the production of aluminium — Calcined coke and calcined carbon produ...
This International Standard specifies a reference method for determining the total sulfur content of calcined coke and
calcined carbon products by the Eschka method, provided that they contain a minimum of by mass and preferably
less than by mass of sulfur.
Aims at defining a qualification profile for electronic assembly manufacturers, making audits simpler and less frequently required. Less paper work would thus be necessary as customers and suppliers work closer to meeting each others' needs. A diskette is also available with the hardcopy of this PAS. Two zipped files are available through Webstore : the pdf file of the PAS itself and the…
