1. Trang chủ
  2. » Kỹ Thuật - Công Nghệ

Bsi bs en 15154 1 2006 (2014)

16 3 0

Đang tải... (xem toàn văn)

Tài liệu hạn chế xem trước, để xem đầy đủ mời bạn chọn Tải xuống

THÔNG TIN TÀI LIỆU

Thông tin cơ bản

Tiêu đề Emergency safety showers — Part 1: Plumbed-in body showers for laboratories
Trường học British Standards Institution
Chuyên ngành Standards
Thể loại British standard
Năm xuất bản 2014
Thành phố Brussels
Định dạng
Số trang 16
Dung lượng 457,04 KB

Các công cụ chuyển đổi và chỉnh sửa cho tài liệu này

Nội dung

BRITISH STANDARD BS EN 15154 1 2006 Emergency safety showers — Part 1 Plumbed in body showers for laboratories The European Standard EN 15154 1 2006 has the status of a British Standard ICS 71 040 10[.]

Trang 1

Emergency safety

showers —

Part 1: Plumbed-in body showers for

laboratories

The European Standard EN 15154-1:2006 has the status of a

British Standard

ICS 71.040.10

corrigendum May 2014

Trang 2

Amendments/corrigenda issued since publication

annex included

This British Standard was

published under the authority

of the Standards Policy and

Strategy Committee

on 31 October 2006

© The British Standards

Institution 2014

Published by BSI Standards

Limited 2014

National foreword

This British Standard is the UK implementation of EN 15154-1:2006

The National Annex within this publication aims to summarize certain key issues and principles within the area of water quality The National Annex

is only informative and is aimed at raising awareness of the issues by giving general considerations to other water quality based on documents in the public domain

The UK participation in its preparation was entrusted by Technical Committee LBI/1, Laboratory safety and equipment, to Subcommittee LBI/1/1, Laboratory furniture and fittings

A list of organizations represented on this subcommittee can be obtained on request to its secretary

The publication does not purport to include all the necessary provisions of a contract Users are responsible for its correct application

Compliance with a British Standard cannot confer immunity from legal obligations.

Trang 3

EUROPÄISCHE NORM September 2006

ICS 71.040.10

English Version

Emergency safety showers - Part 1: Plumbed-in body showers

for laboratories

Douches de sécurité - Partie 1 : Douches pour le corps

raccordées au réseau d'eau utilisées en laboratoire Sicherheitsnotduschen - Teil 1: Körperduschen mitWasseranschluss für Laboratorien

This European Standard was approved by CEN on 19 August 2006.

CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European Standard the status of a national standard without any alteration Up-to-date lists and bibliographical references concerning such national standards may be obtained on application to the Central Secretariat or to any CEN member.

This European Standard exists in three official versions (English, French, German) A version in any other language made by translation under the responsibility of a CEN member into its own language and notified to the Central Secretariat has the same status as the official versions.

CEN members are the national standards bodies of Austria, Belgium, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom.

EUROPEAN COMMITTEE FOR STANDARDIZATION

C O M I T É E U R O P É E N D E N O R M A L I S A T I O N

E U R O P Ä I S C H E S K O M IT E E FÜ R N O R M U N G

Management Centre: rue de Stassart, 36 B-1050 Brussels

Trang 4

Contents Page

Foreword 3

Introduction 4

1 Scope 5

2 Normative references 5

3 Terms and definitions 5

4 Performance 5

5 Design requirements for installation 7

6 Valve 7

7 Shower head 7

8 Manufacturer's information 7

9 Marking 8

Annex A (informative) Water temperature 9

National Annex NA (informative) Guidance on UK legislation concerning water quality ������������������������������� 10

Trang 5

Foreword

This document (EN 15154-1:2006) has been prepared by Technical Committee CEN/TC 332 “Laboratory equipment”, the secretariat of which is held by DIN

This European Standard shall be given the status of a national standard, either by publication of an identical text or by endorsement, at the latest by March 2007, and conflicting national standards shall be withdrawn at the latest by March 2007

EN 15154 consists of the following parts, under the general title Emergency safety showers

 Part 1: Plumbed-in body showers for laboratories

 Part 2: Plumbed-in eye wash units

 Part 3: Portable body showers (in preparation)

 Part 4: Portable eye wash units (in preparation)

 Part 5: Plumbed-in body showers for production facilities (in planning)

According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom

Trang 6

Introduction

Plumbed-in body showers are designed and intended to be installed in close range of persons working in a potentially hazardous area The main purpose of these devices is to immediately deliver a flushing fluid in a sufficient volume to extinguish flames and/or to flush the body following exposure to injurious substances or heat With this accomplished the injured person can proceed to medical care

Trang 7

1 Scope

This document is a product specification, giving performance requirements for emergency safety body showers connected to the water supply It is applicable to plumbed-in body showers only, located in laboratory facilities It is not applicable to emergency safety showers used on industrial sites or in other such areas Requirements are given in respect of the performance, installation, adjustment and marking of the showers as well as installation, operation and maintenance instructions to be given by the manufacturer

NOTE Attention is drawn to national regulations which may apply in respect of the installation and use of emergency safety showers

2 Normative references

The following referenced documents are indispensable for the application of this document For dated references, only the edition cited applies For undated references, the latest edition of the referenced document (including any amendments) applies

EN 420, Protective gloves — General requirements and test methods

ISO 3864-1, Graphical symbols — Safety colours and safety signs — Part 1: Design principles for safety signs

in workplaces and public areas

3 Terms and definitions

For the purposes of this document, the following terms and definitions apply

3.1

emergency safety shower

device specially designed and intended to deliver a flushing fluid to extinguish flames and to sufficiently wash away contaminants or to dilute them, rendering them harmless

3.2

plumbed-in body shower

emergency safety shower that is permanently connected to a continuous water supply and designed to deliver water sufficient to flush the whole body

4 Performance

4.1 Flow rate of water

The water supplied by the body shower shall be of constant flow rate in accordance with national regulations

at a flow pressure to be specified by the manufacturer The flow pressure shall be specified and measured where the shower is connected to the water system The body shower shall be capable of delivering this supply for a minimum of 15 minutes

NOTE When no national or local regulations apply, a constant flow rate of min 60 l/min is suitable

4.2 Water distribution

The water distribution of the emergency body shower shall be measured by the following type test procedure

As shown in Figure 1, at a distance 700 mm below the shower head, (50 ± 10) % of the volume of water delivered shall fall in a circle with a radius of 200 mm; the water level in the individual compartments in this circle shall not deviate by more than 30 % from the mean value

Trang 8

At this measuring level, the area reached by a minimum of 95 % of the water shall be limited to a circle with a radius of 400 mm

The velocity of the water spray shall be low enough to be non-injurious to the user

NOTE A hand held shower with flexible hose mounted on the body shower can be incorporated

Dimensions in millimeters

Key

1 Cylinder shall be divided into 4 compartments

Figure 1 — Type testing of water distribution

4.3 Water quality

Potable water or water of a similar quality complying with European or national standards is required for body showers

Materials used in the construction of the shower shall not affect the water quality or contaminate the water supply

Trang 9

4.4 Water temperature

Information on water temperature is given in Annex A (informative)

5 Design requirements for installation

5.1 Installation height

The shower head shall be designed to be installed so that its lower edge is (2 200 ± 100) mm above the level

on which the user stands

5.2 Free space

The free space between the centre line of the shower head and the nearest obstruction (wall, vertical supply tube or similar) shall be a circle with a minimum radius of 400 mm

Only the valve control element and/or the eyewash station and/or the hand held shower on a combination shower shall project into this space by a maximum of 200 mm Other parts or components shall not project into this space

6 Valve

For manual operation, the valve shall be opened in a single operation by turning or moving a valve actuator to maximum 90° or maximum 200 mm stroke The maximum force for the operation shall be 100 N or the

maximum torque 7 Nm By using this force/torque, the valve shall be fully open within 1 s

Also for automatic operation, the valve shall be fully open within 1 s

The valve shall not close automatically once it has been opened The direction of operating the valve actuator shall be clearly visible and unmistakable

The valve actuator shall be large enough to be easily located and operated by the user even when wearing protective gloves, with a maximum size in accordance with EN 420 The valve actuator shall be positioned between floor level and a maximum of 1 750 mm above that level

NOTE Attention is drawn to national regulations in some European countries, e g Sweden, requesting the actuator

to be operable at floor level

7 Shower head

It shall only be possible to make adjustments with a tool to the direction of spray or the water distribution of a shower head

The shower head shall be self-draining between the valve and the outlet The shower head shall be removable for maintenance but only by use of a tool

8 Manufacturer's information

The manufacturer shall supply with the emergency body shower information on installation, operation and maintenance as well as the method and frequency of routine testing

NOTE Attention is drawn to national regulations that may apply for installation, maintenance and routine testing

Trang 10

9 Marking

The shower shall be clearly and permanently marked showing requirements for minimum and maximum flow pressure and the maximum static pressure Marking shall be performed by the manufacturer and shall show the name of the manufacturer and the model/article number

In addition, a safety sign in accordance with ISO 3864-1 displayable near the shower shall be supplied with each emergency body shower

Trang 11

Annex A

(informative)

Water temperature

Continuous and timely irrigation of affected tissues for the recommended irrigation period are the principal factors in providing first aid treatment Providing water at temperatures conducive to use for the recommended irrigation period is considered an integral part of providing suitable facilities Medical recommendations suggest water at tepid temperatures be delivered to affected chemically injured tissue Temperatures in an excess of 37 ºC have proven to be harmful to the eyes and can enhance chemical interaction with the eyes and skin

While cold water temperatures provide immediate cooling after burns or chemical contact, prolonged exposure

to cold water affects the ability to maintain adequate body temperature and can result in the premature cessation of first aid treatment Recent information indicates that a temperature of 15 ºC is suitable for the lower parameter for tepid water without causing hypothermia to the equipment user

Trang 12

National Annex NA

(informative)

Guidance on UK legislation concerning water quality

NA.1 Introduction

This National Annex is purely informative This National Annex is based on the Water Management

Society (WMS) working party’s, Managing the Risk of Legionnaires’ Disease in Emergency Safety Showers,

Eyebaths and Facewash Fountains [1] and the Department of Health’s, Water sources and potential Pseudomonas aeruginosa contamination of taps and water systems [2], and aims to summarize certain

key issues This National Annex also draws attention to general recommendations within the UK, and the following underlying principles of water quality:

• Assessing the risk;

• Taking the appropriate measures

Personnel who have an emergency shower within their workplace are advised to refer to the full guidelines for further information

This guidance only covers water quality for emergency safety showers and the creation of a Water Safety Plan (WSP)

NA.2 System Design

When designing safety shower systems where a dedicated cistern is used to provide the required volume and flow water to conform to the recommendations in this standard, the following criteria should be applied:

1 For installations, attention is drawn to the Water Supply (Water Quality) Regulations 2010 [3];

2 The cistern should be installed to allow easy access for cleaning, providing adequate head room for access to mechanical cleaning equipment;

3 The cistern should be fitted with a separate drain valve at the lowest point to facilitate complete drainage of the unit, the flushing out of sediments and the cleaning/disinfection of chemical residues;

4 The primary outlet to the shower feed should be designed and installed to maximize the flushing benefit of regular testing and purging operations;

5 Provision should be made for secondary draw off from the storage cistern to ensure a flow of water through the tank

The overriding design and operational criteria should be to minimize the impacts on water quality caused by stagnation Adverse changes in water quality decrease the risk of infection to traumatized users of the facility

Where supplementary heating of the cistern is installed to combat risks to the users of thermal shock induced by drenching with water, the heating arrangement should be designed to ensure that the temperature does not exceed the maximum advised for legionella control in cold water systems, i.e 20 °C (for details visit http://www.hpa.org.uk/webc/HPAwebFile/HPAweb_C/1263812807228)

Trang 13

NA.3 Water Quality

Attention is drawn to the Water Quality Regulations [3] for regulated quality requirements for water in

public buildings irrespective of whether or not any non-compliance is due to the domestic distribution system or the maintenance thereof Microbiological water quality requirements are defined in

Schedules 1 and 2 of the The Water Supply (Water Quality) Regulations 2000 It is recommended that

these should be regarded as the minimum requirements for water managed specifically for provision

in the event of a medical emergency as defined by the provision of storage cisterns installed with the sole purpose of supplying emergency safety showers

NA.4 Flushing the system

NA.4.1 General

Shower units should be activated weekly to verify proper operation and ensure that the stored water does not stagnate The duration of routine flushing should be sufficient to ensure both the shower and water feed pipe are fully purged with potable water; in practice this can mean flushing for several minutes To calculate the minimum required duration of flushing, the regime should be designed so that at least three times the pipework volume is discharged on every occasion

NA.4.2 Training

All employees who may be exposed to potentially hazardous materials should be trained in the use of emergency showers, eyebaths and eye/facewash equipment Employees should also be made aware of the exact location of all emergency showers, eyebaths and eye/facewash equipment, and be able to record details on a flushing record

NA.5 Routine testing of water quality

Routine testing of the water quality within the emergency shower, eyebath and eye/facewash equipment is required to ensure there is no build-up of harmful bacteria Test records should include details of water quality and temperature (and disinfectant if it is applied in the building) If necessary, following the test, the unit should be thoroughly cleaned and chlorinated/disinfected Records should include details of water quality, both pre-clean and post-clean These records should be kept for a minimum period of seven years

Regardless of monitoring results, storage tanks supplying safety showers should be cleaned at least

annually in accordance with Health and Safety Commission L8 – Legionnaire’s disease The control of

legionella bacteria in water systems Approved code of practice and guidance [4].

Regardless of the minimum requirements for tank cleaning safety, showers represent a heightened

risk of microbiologic regrowth and associated risks from legionella and pseudomonas bacteria to

traumatised users of the facility Therefore, depending on the results of testing at least quarterly, tank cleaning/checking should be considered unless substantial turnover of water in the storage cisterns can

be assured Persistent results (three consecutive) in excess of the prescribed quality criteria defined in NA.3 indicate that cleaning of the cistern is required

NA.6 Maintenance of emergency shower

This type of equipment should be maintained in an efficient state, in effective working order and

Ngày đăng: 14/04/2023, 08:17

TÀI LIỆU CÙNG NGƯỜI DÙNG

TÀI LIỆU LIÊN QUAN