Lignins — Determination of dry matter content — Oven-drying and freeze-drying methods
This document describes methods for the determination of the dry matter content of lignins by oven-drying and freeze-drying. The methods are applicable to all types of lignins isolated from kraft, organosolv, soda, and sulfite pulping processes, and to lignin obtained by enzymatic or acid hydrolysis of biomass. However, the oven-drying method is not applicable to kraft lignins in the base form,…
Plastics piping systems for the supply of gaseous fuels — Polyethylene (PE) — Part 5: Fitness for pu...
This document specifies the requirements of fitness for purpose of assembled polyethylene (PE) piping systems in the field of the supply of gaseous fuels.
It specifies the requirements for electrofusion, socket fusion, butt fusion and mechanical joints.
It specifies the method of preparation of test piece joints and the tests to be carried out on these joints for assessing the fitness for purpose…
Aerospace fluid systems — Elastomer seals — Storage and shelf life
This document specifies the general requirements for data recording procedures, packaging, and storing of elastomeric seals and seal assemblies which include an elastomeric element prior to the seal being assembled into hardware components.
This document does not establish limitations or storage times for assembled components, or the operating life of the said components.
Lignines — Détermination de la teneur en matières sèches — Méthodes par séchage à l’étuve et par lyo...
Le présent document décrit des méthodes pour la détermination de la teneur en matières sèches des lignines par séchage à l’étuve et par lyophilisation. Les méthodes sont applicables à tous les types de lignines isolées par des procédés de mise en pâte kraft, organosolve, soude et lignosulfates, et à la lignine obtenue par hydrolyse enzymatique ou acide de la biomasse. Toutefois, la méthode par…
Plastics piping systems for the supply of gaseous fuels — Polyethylene (PE) — Part 1: General
This document specifies materials and the general aspects of polyethylene (PE) piping systems in the field of the supply of gaseous fuels.
It also specifies the test parameters for the test methods referred to in this document.
In conjunction with ISO 4437-2, ISO 4437-3, ISO 4437-4 and ISO 4437-5, this document is applicable to PE pipes, fittings and valves, their joints, and joints with…
Plastics piping systems for the supply of gaseous fuels — Polyethylene (PE) — Part 2: Pipes
This document specifies the characteristics of pipes made from polyethylene (PE) for piping systems in the field of the supply of gaseous fuels.
It also specifies the test parameters for the test methods referred to in this document.
In conjunction with ISO 4437-1, ISO 4437-3, ISO 4437-4 and ISO 4437-5, this document is applicable to PE pipes, fittings and valves, their joints, and joints with…
