Water quality. Determination of the elimination and biodegradability of organic compounds in an aqueous medium. Activated sludge simulation test Ingestion-build-86103

Water quality. Determination of the elimination and biodegradability of organic compounds in an aqueous medium. Activated sludge simulation test Ingestion-build-861031 Scope This International Standard specifies a method for the determination of the elimination and the biodegradability of organic compounds by aerobic micro organisms. The conditions described simulate a waste water treatment plant. Two test systems can be used: activated sludge plants or porous pots. The tests can optionally be performed under conditions of nitrification and denitrification (Annex A) and coupling of the units (Annex B). The method

This helps in manufacturing good quality discrete semiconductor devices used in electronic components

CH3COCH2C(OH)(CH3)2

This part of IEC 62862 specifies the requirements and the test methods for the characterization of a large-size parabolic-trough collector

List of returnable documents

This International Standard specifies a rapid method for the determination of trace amounts of phosphorus (≤ 40 mg/kg) in crude or refined animal and vegetable fats and oils (hereafter referred to as fats)

It specifies the general principles of magnetic particle testing of ferromagnetic materials

3 Reproducibility limit

PD 6527 is an international standard that focuses on the methods to produce textiles of the highest quality

Tolerances on dimensions without individual tolerance indications shall be in accordance with ISO 2768‑1

Supervision of participants

BS EN 81‑28:2018 includes some technical changes with respect to BS EN 81‑28:2003

Grooved pulleys for V-ribbed belts