Acoustics — Laboratory measurement of the flanking transmission of airborne and impact sound between...
ISO 10848-3:2006 applies to structurally connected light elements forming a T or X junction. The performance of the building components is expressed either as an overall quantity for the combination of elements and junction, or as the vibration reduction index of a junction.
Methods of Testing Pulp and Paper The Determination of Freeness
1.1
The Canadian Standard Freeness test is designed to give a measure of the
rate at which a dilute suspension of pulp may be dewatered. The drainage rate,
or freeness, has been shown to be related to the surface conditions and
swelling of the fibres, and is a useful index of the amount of mechanical
treatment given to the pulp.
1.2
The procedure was originally designed to yield a test value…
Water quality — Determination of the chemical oxygen demand index (ST-COD) — Small-scale sealed-tub...
ISO 15705:2002 specifies a method for the determination of the chemical oxygen demand (ST-COD) using the sealed tube method. The test is empirical and is applicable to any aqueous sample, which includes all sewage and waste waters.
The method is applicable to undiluted samples having ST-COD values up to 1 000 mg/l and a chloride concentration not exceeding 1 000 mg/l. Samples with higher ST-COD…
CAN/CSA-A5-98 Portland Cement
1. Scope
1.1 Scope
This Standard addresses the definition of Portland cement; the chemical, physical, and uniformity requirements; the tests required; the procedures for inspection and sampling; the units of measurement, packaging, marking, and storage.
1.2 Types
The five types of Portland cement covered in this Standard are identified as follows:
Type…
