GP - GENERAL PURPOSE LINER

PURPOSE
Corroline GP is the ‘General Purpose’ grade, for use in all applications where fluids or gases are being conveyed which do not generate a risk of static charge development (see 'AS').

MATERIALS & SPECIFICATIONS
Corroline GP is a virgin PTFE liner, manufactured from hose grade PTFE which conforms to the requirements of: FDA 21 CFR 177.1550. The helical reinforcement is High Tensile Grade 304L SS wire.

GP & AS GRADE APPROVALS
The full list of approvals and certifications are given on page 27 of the brochure. Both Grades have also been tested for Leachables and Extractables in accordance with BPSA recommendations, with satisfactory results.

Copies of the Report are available from Aflex Hose.

AS - ANTI-STATIC PTFE LINER

PURPOSE
Corroline AS is an essential requirement in applications where there is the risk of an electrostatic charge build-up on the inside surface of the PTFE tube which may then discharge through the tube wall. Media passing through which create such a risk are fluids which have a Conductance of less than 10^-8 S/m (Siemens per Metre), or 10⁴ pS/m such as fuels, solvents, freons, some WFI (ultra-pure 'Water for Injection') and non-polar organics which are being transferred at a medium to high flow velocity.

All twin or multi phase media, and any non-mixing media, such as powder in air, or water droplets in steam, in gases or in oil, also colloidal fluids constitute a particular hazard for static charge generation, and always require grade AS.

If in doubt, consult Aflex Hose.

MATERIALS & SPECIFICATIONS
Corroline AS is an anti-static PTFE liner manufactured from FDA 21 CFR 177.1550 approved PTFE, and less than 2.5% of 'high purity' Carbon Black material to FDA requirement 21 CFR 178.3297 and European Commission Directive 2007/19/EC. The carbon is encapsulated by the PTFE, and in normal, non-abrasive applications will not come loose to contaminate any fluid passing through. This has been proved during Leachables and Extractables testing.

ANTISTATIC HOSE ASSEMBLIES
When "AS" (Antistatic) grade hose is specified, then the hose or hose assembly supplied will be tested in accordance with EN ISO 8031:2009 Clause 7 using electrodes specified in EN ISO 8031:2009 Clause 4.2.2.2 d) (and Clause 4.2.2.2 e if the hose has an antistatic cover) and meet the Antistatic requirements of EN ISO 8031:2009 Annex A. This requires, for an antistatic liner or antistatic cover, that the resistance between an appropriately placed foam electrode and a metallic end fitting will be between 10³ to 10⁸ ohms per assembly. For hose assemblies which meet these requirements an appropriate Grade "Ω" marking can be applied in accordance with EN ISO 8031:2009 Annex A if requested.

NOTE: When in service, at least one end fitting must be connected to earth, to permit dissipation of the static charge from the end fitting.