ISO 8308:2015

Name: ISO 8308:2015 — Rubber and plastics hoses and tubing — Determination of transmission of liquids through hose and tubing walls
SKU: ISO 8308:2015
Price: 25 EUR
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Rubber and plastics hoses and tubing — Determination of transmission of liquids through hose and tubing walls

Название (английский):

ISO 8308:2015

Rubber and plastics hoses and tubing — Determination of transmission of liquids through hose and tubing walls

Статус документа:: Действующий
Формат:: Электронный (PDF)
Количество страниц:: 7
Дата публикации:: 27 сентября 2015 г.
Издание:: ISO IS 8308 edition 4 version 1
ICS:: 23.040.70

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Описание (английский):

ISO 8308:2015 specifies two methods for the determination of transmission of liquids through hose and tubing walls. Both methods are applicable to rubber and plastics hose and tubing, and comprise: - method A, for all hose and tubing sizes and constructions: a practical comparative test, simulating working conditions; - method B, for hose and tubing up to 16 mm inside diameter.

Abstract

Похожие стандарты

Упомянутые в описании и другие стандарты ISO

ISO 8308:2015 - Overview

ISO 8308:2015 specifies laboratory methods to determine the transmission of liquids through rubber and plastics hoses and tubing. The standard defines two complementary test procedures - Method A (practical comparative test simulating working conditions) and Method B (for hoses/tubing up to 16 mm inside diameter) - to quantify liquid loss through hose/tubing walls due to permeation and evaporation. Results are reported as steady-state evaporation or mass loss rates useful for quality control, product specification and compatibility assessment.

Key topics and technical requirements

Scope: Applies to rubber and plastics hoses and tubing; covers determination of liquid transmission (permeation + evaporation).

Two test methods:

Method A: Suitable for all hose/tubing sizes. Uses a pressurized assembly with a measuring cylinder and nitrogen source. Test pressure is 50 kPa ± 5 kPa gauge; temperature is one of the ISO 23529 standard temperatures ((23 ± 2) °C or (27 ± 2) °C). Measure volume change at 24 h intervals until a steady-state evaporation rate is reached. Report as millilitres per square metre per hour (mL·m⁻²·h⁻¹). Three test pieces are required.
Method B: For hose/tubing up to 16 mm inside diameter. Uses a pressureless 0.5 L reservoir and a weighed assembly filled with 300 mL test liquid. Test pieces are 300 mm long; weigh every 24 h for eight days (or until stabilization). Report the maximum 24 h mass loss per internal surface area (g·m⁻²·24 h⁻¹).

Test liquids: As specified in the relevant product standard.

Apparatus & measurements: References normative standards ISO 4671 (dimensions), ISO 4788 (measuring cylinders) and ISO 23529 (conditioning and temperatures).

Safety: Method A warns about hazardous vapours - tests must be performed in well‑ventilated areas with safety valves and shields.

Practical applications and users

ISO 8308:2015 is intended for:

Hose and tubing manufacturers for design validation, material selection and production quality control.

Independent test laboratories carrying out permeation/evaporation testing and certification.

OEMs and spec writers who need quantified transmission rates to select hoses for fuels, solvents or volatile liquids.

Regulatory and procurement teams requiring standardized test data to compare products or verify compliance.

Typical uses include fuel line compatibility assessment, lifetime/performance comparison between materials, and establishing product specifications for automotive, industrial and chemical transfer applications.

Related standards

ISO 4671 - measurement of hose dimensions and lengths

ISO 4788 - graduated measuring cylinders (laboratory glassware)

ISO 23529 - conditioning and preparation of rubber test pieces

Keywords: ISO 8308:2015, rubber and plastics hoses and tubing, transmission of liquids, permeation, evaporation rate, method A, method B, hose testing, test procedure.

ISO 8308:2015

Abstract

Похожие стандарты

ISO 8308:2015 - Overview

Key topics and technical requirements

Practical applications and users

Related standards

Технические детали

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