Agilent Technologies Intuvo 900 Guida utente

Agilent Technologies

Agilent Intuvo 9000

Gas Chromatograph

Safety Manual

2 9000 Series GC Safety Manual

Notices

No part of this manual may be reproduced

in any form or by any means (including

electronic storage and retrieval or transla-

tion into a foreign language) without prior

agreement and written consent from Agi-

lent Technologies, Inc. as governed by

United States and international copyright

laws.

Manual Part Number

G4580-90002

Edition

Fourth edition, June 2019

Third edition, October 2017

Second edition, January 2017

First edition, September 2016

Printed in USA and China

Agilent Technologies, Inc.

2850 Centerville Road

Wilmington, DE 19808-1610 USA

安捷伦科技（上海）有限公司

上海市浦东新区外高桥保税区

英伦路 412 号

联系电话：（800）820 3278

Warranty

The material contained in this

document is provided “as is,” and

is subject to being changed,

without notice, in future editions.

Further, to the maximum extent

permitted by applicable law,

Agilent disclaims all warranties,

either express or implied, with

regard to this manual and any

information contained herein,

including but not limited to the

implied warranties of

merchantability and fitness for a

particular purpose. Agilent shall

not be liable for errors or for

incidental or consequential

damages in connection with the

furnishing, use, or performance of

this document or of any

information contained herein.

Should Agilent and the user have

a separate written agreement

with warranty terms covering the

material in this document that

conflict with these terms, the

warranty terms in the separate

agreement shall control.

Safety Notices

CAUTION

A CAUTION notice denotes a

hazard. It calls attention to an

operating procedure, practice, or

the like that, if not correctly

performed or adhered to, could

result in damage to the product

or loss of important data. Do not

proceed beyond a CAUTION

notice until the indicated

conditions are fully understood

and met.

WARNING

A WARNING notice denotes a

hazard. It calls attention to an

operating procedure, practice,

or the like that, if not correctly

performed or adhered to, could

result in personal injury or

death. Do not proceed beyond a

WARNING notice until the

indicated conditions are fully

understood and met.

Agilent Intuvo 9000 Gas Chromatograph

Safety Manual

Agilent Technologies

Introduction

Important Safety Warnings 4

Hydrogen Safety 6

Uncombusted Hazardous Gases 8

Electron Capture Detector (ECD) 9

Safety and Regulatory Certifications 11

Intended Use 16

Cleaning 16

Fume Hood 16

Recycling the Product 16

4 Intuvo 9000 GC Safety Manual

Introduction

Important Safety Warnings

Before moving on, there are several important safety notices that you should

always keep in mind when using the Agilent GC.

Many internal parts of the GC carry dangerous voltages

If the GC is connected to a power source, even if the power switch is off,

potentially dangerous voltages exist on:

•The wiring between the GC power cord and the AC power supply and the

AC power supply itself.

Do not use an Uninterruptable Power Supply (UPS) with a GC

If the area where the GC is located suddenly looses power, an unsafe condition

can result if the GC remains powered on. Do not use the GC with a UPS.

WARNING

When handling/using chemicals for preparation or use within the GC, all

applicable local and national laboratory safety practices must be followed. This

would include, but is not limited to, correct use of Personal Protective Equipment

(PPE), correct use of storage vials, and correct handling of chemicals, as defined in

the laboratory’s internal safety analysis and standard operating procedures. Failure

to adhere to laboratory safety practices could lead to injury or death.

WARNING

If the power cord insulation is frayed or worn, the cord must be replaced. Contact

your Agilent service representative.

WARNING

The GC power supply uses double pole/neutral fusing. Line voltage can be present

on the neutral and on the phased power leads. To prevent electric shock, always

disconnect the power cord before servicing the instrument. Refer servicing to

Agilent-trained personnel only. There are no user serviceable parts within the GC

power supply.

Introduction

Intuvo 9000 GC Safety Manual 5

Electrostatic discharge is a threat to GC electronics

The printed circuit (PC) boards in the GC can be damaged by electrostatic

discharge. Do not touch any of the boards unless it is absolutely necessary. If

you must handle them, wear a grounded wrist strap and take other antistatic

precautions. Wear a grounded wrist strap any time you must remove the GC

right side cover.

Many parts are dangerously hot

Many parts of the GC operate at temperatures high enough to cause serious

burns. These parts include but are not limited to:

•The inlets

•The detectors

•The attaching the column to an inlet or detector

•The valve box

You should always cool these areas of the GC to room temperature before

working on them. They will cool faster if you first set the temperature of the

heated zone to room temperature. Turn the zone off after it has reached the

setpoint. If you must perform maintenance on hot parts, use a wrench and

wear thermally protective gloves. Whenever possible, cool the part of the

instrument that you will be maintaining before you begin working on it.

WARNING

Be careful when working behind the instrument. During cool-down cycles, the GC

emits hot exhaust which can cause burns.

6 Intuvo 9000 GC Safety Manual

Introduction

Hydrogen Safety

Hydrogen gas may be used as carrier gas, and/or as fuel for the FID and NPD.

When mixed with air, hydrogen can form fire hazard.

Hydrogen is a commonly used GC carrier gas. Hydrogen is potentially a fire

hazard and has other dangerous characteristics.

•Hydrogen is a fire hazard over a wide range of concentrations. At

atmospheric pressure, hydrogen is a fire hazard at concentrations from 4%

to 74.2% by volume.

•Hydrogen has the highest burning velocity of any gas.

•Hydrogen has a very low ignition energy.

•Hydrogen that is allowed to expand rapidly from high pressure into the

atmosphere can self-ignite due to an electrostatic spark.

•Hydrogen burns with a nonluminous flame which can be invisible under

bright light.

Hydrogen shutdown

Hydrogen gas may be used as a carrier or as fuel for some detectors. When

mixed with air, hydrogen can form fire hazard.

The GC monitors inlet and auxiliary gas streams. If a stream shuts down

because it is unable to reach its flow or pressure setpoint and if that stream is

configured to use hydrogen, the GC assumes that a leak has occurred and

declares a hydrogen safety shutdown. The effects are:

•The offending channel and any associated channels (such as septum purge)

are set off.

•The column heater turns off.

WARNING

Hydrogen is flammable. Leaks may create a fire hazard. In any application using

hydrogen, leak test all connections, lines, and valves before operating the

instrument. Always turn off the hydrogen supply at its source before working on the

instrument.

Introduction

Intuvo 9000 GC Safety Manual 7

•The small heated zones are turned off.

•An alarm tone sounds.

To recover from this state, fix the cause of the shutdown (tank valve closed,

serious leak, others). Turn the instrument off, then back on.

Measuring hydrogen gas flows

When measuring gas flows on a detector using hydrogen for the detector flame

or carrier gas, measure the hydrogen flow separately. Never allow an air

stream to enter when hydrogen is present in the flow meter.

WARNING

The GC cannot always detect leaks in inlet and/or detector gas streams. For this

reason, it is vital that column fittings should always be either connected to a

column, or have a cap or plug installed. The H2streams must be configured for

hydrogen so that the GC is aware of hydrogen use.

WARNING

Do not measure hydrogen together with air or oxygen. This can create explosive

mixtures that may be ignited by the automatic ignitor.

To avoid this hazard:

Turn the automatic ignitor off before you begin.

Always measure gases separately.

8 Intuvo 9000 GC Safety Manual

Introduction

Uncombusted Hazardous Gases

During normal operation of the GC with many detectors and inlets, some of

the carrier gas and sample vents outside the instrument through the split vent,

septum purge vent, and detector exhaust. If any sample components are toxic

or noxious, or if hydrogen is used as the carrier gas, these exhausts must be

vented to a fume hood. Place the GC in the hood or attach a large diameter

venting tube to the outlet for proper ventilation.

Introduction

Intuvo 9000 GC Safety Manual 9

Electron Capture Detector (ECD)

The ECD contains a cell plated with 63Ni, a radioactive isotope. The beta

particles released at the energy level in the detector have little penetrating

power—the surface layer of the skin or a few sheets of paper will stop most of

them—but they may be hazardous if the isotope is ingested or inhaled. For this

reason, handle the cell with care. Cap the detector inlet and outlet fittings

when the detector is not in use. Never introduce corrosive chemicals into the

detector. Vent detector exhaust outside the laboratory environment.

Refer to the safety documentation provided with the detector for important

details about safety, maintenance, and compliance with local government

regulation.

WARNING

Materials that may react with the 63Ni source, either to form volatile products or to

cause physical degradation of the plated film, must be avoided. These materials

include oxidizing compounds, acids, wet halogens, wet nitric acid, ammonium

hydroxide, hydrogen sulfide, PCPs, and carbon monoxide. This list is not exhaustive

but indicates the kinds of compounds that may cause damage to 63Ni detectors.

WARNING

In the extremely unlikely event that the oven or the detector-heated zone should go

into thermal runaway (maximum, uncontrolled heating in excess of 400 °C) and the

detector remains exposed to this condition for more than 12 hours, take the

following steps:

1 After turning off the main power and allowing the instrument to cool to room

temperature, cap the detector inlet and exhaust vent openings. Wear disposable

plastic gloves and observe normal laboratory safety precautions.

2 Contact your local Agilent Technologies sales office or distributor for ECD disposal

instructions

3 Include a letter stating the condition of abuse.

It is unlikely, even in this very unusual situation, that radioactive material will

escape the cell. However, permanent damage to the 63Ni plating within the cell is

possible; therefore, the cell must be returned for exchange.

10 Intuvo 9000 GC Safety Manual

Introduction

When handling ECDs:

•Never eat, drink, or smoke.

•Always wear safety glasses when working with or near open ECDs.

•Wear protective clothing such as laboratory jackets, safety glasses, and

gloves, and follow good laboratory practices. Wash hands thoroughly with a

mild nonabrasive cleaner after handling ECDs.

•Cap the inlet and outlet fittings when the ECD is not in use.

•Connect the ECD exhaust vent to a fume hood or vent it to the outside. See

the latest revision of 10 CFR Part 20 (including Appendix B), or the

applicable state regulation. For other countries, consult with the

appropriate agency for equivalent requirements.

Agilent Technologies recommends a vent line internal diameter of 6 mm

(1/4-inch) or greater. With a line of this diameter, the length is not critical.

WARNING

Do not use solvents to clean the ECD.

WARNING

You may not open the ECD cell unless authorized to do so by your local nuclear

regulatory agency. Do not disturb the four socket-head bolts. These hold the cell

halves together. United States customers removing or disturbing them is a violation

of the terms of the exemption and could create a safety hazard.

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