BS EN ISO 5815-1:2019 PDF

Water quality. Determination of biochemical oxygen demand after n days (BODn) - Dilution and seeding method with allylthiourea addition

First page of standard BS EN ISO 5815-1:2019

Open preview (PDF)

Title (English):

BS EN ISO 5815-1:2019

Water quality. Determination of biochemical oxygen demand after n days (BODn) - Dilution and seeding method with allylthiourea addition

Format:: Electronic (PDF)
Publication date:: November 30, 2019
ICS:: 13.060.50
SKU:: BS EN ISO 5815-1:2019

Delivery type:

Full version50 €Read online 24h10 €Read online 72h15 €

Document language:

enru

Delivery time:Immediate download

Price:50 €

Abstract

What is ISO 5815 ‑ 1 - BOD with allylthiourea addition about?

ISO 5815 ‑ 1 is the first part of the ISO 5815 multi-series on water quality and focuses on biochemical oxygen demand after n days (BODn). ISO 5815 ‑ 1 specifies the determination of the biochemical oxygen demand of waters by dilution and seeding with suppression of nitrification after 5 d or 7 d incubation time. ISO 5815 ‑ 1 is applicable to all waters having biochemical oxygen demands usually between 1 mg/l and 6 000 mg/l. ISO 5815 ‑ 1 applies particularly to wastewaters but also suits the analysis of natural waters. For biochemical oxygen demands greater than 6 000 mg/l of oxygen, the method is still applicable, but special care is needed taking into consideration the representativeness of subsampling for preparation of the dilution steps. The results obtained are the product of a combination of biochemical and chemical reactions in presence of living matter which behaves only with occasional reproducibility. The results do not have the rigorous and unambiguous character of those resulting from, for example, a single, well‑defined, chemical process. Neverth...

Related standards

Mentioned in the description and other BS standards

What is ISO 5815 ‑ 1 - BOD with allylthiourea addition about?

BS EN ISO 5815-1:2019 PDF

Abstract

Related standards

Abstract

Related standards

Water quality - Determination of biochemical oxygen demand after n days (BODn) - Part 1: Dilution and seeding…

Safety of earth-moving machinery - Specification for lighting, signalling and marking lights, and reflex-refl…

Airframe rolling bearings. Technical specification.

Road vehicles. Types. Terms and definitions.

Water quality. Evaluation of the ´ultimate´ anaerobic biodegradability of organic compounds in digested sludg…

Petroleum and natural gas industries. Drilling and production equipment. Hoisting equipment. Hoisting equipme…

Specification for lifts, escalators, passenger conveyors and paternosters. Building construction requirements.

Timber structures. Test methods. Cyclic testing of joints made with mechanical fasteners.