Sri Lanka Standards Institution

Monday	Tuesday	Wednesday	Thursday	Friday	Saturday	Sunday
September 8, 2025	September 9, 2025	September 10, 2025	September 11, 2025	September 12, 2025	September 13, 2025	September 14, 2025

SLS ISO 37123

Title: Sustainable cities and communities — indicators for resilient cities Scope: Defines and establishes definitions and methodologies for a set of indicators on resilience in cities. This document is applicable to any city, municipality or local government that undertakes to measure its performance in a comparable and verifiable manner, irrespective of size or location. Maintaining […]

View

SLS ISO 23832

Title: Plastics – test methods for determination of degradation rate and disintegration degree of plastic materials exposed to marine environmental matrices under laboratory conditions Scope: Specifies test methods for the measurement of the physical degradation of samples made with plastics materials when exposed to marine environmental matrices under aerobic conditions at laboratory scale. This document […]

View

SLS IEC TS 60904-1-2

Title: Photovoltaic devices : classification of solar simulator characteristics Photovoltaic devices: measurement of current-voltage characteristics of bifacial photovoltaic (pv) devices Scope: Describes procedures for the measurement of the current-voltage (I-V) characteristics of bifacial photovoltaic evices in natural or simulated sunlight. It is applicable to single PV cells, sub-assemblies of such cells or entire PV modules. […]

View

SLS IEC 60904 -9

Title: Photovoltaic devices : classification of solar simulator characteristics Scope: Devices require the use of specific classes of solar simulators deemed appropriate for specific tests. Solar simulators can be either used for performance measurements of PV devices or endurance irradiation tests. This part of IEC 60904 provides the definitions of and means for determining simulator […]

View

SLS IEC 60904- 8- 1

Title: Photovoltaic devices: measurement of spectral responsivity of multi-junction photovoltaic (pv) devices Scope: Gives guidance for the measurement of the spectral responsivity (SR) of multi-junction photovoltaic devices. It is principally intended for non-concentrating devices, but parts may be applicable also to concentrating multi-junction PV devices. The SR is required for analysis of measured current-voltage characteristics […]

View

SLS IEC 60904-8

Title: Photovoltaic devices : measurement of spectral responsivity of a photovoltaic (pv) device Scope: Specifies the requirements for the measurement of the spectral responsivity of both linear and non-linear hotovoltaic devices. It is only applicable to singlejunction devices. The spectral responsivity of a photovoltaic device is used in cell development and cell analysis, as it […]

View

SLS IEC 60904-7

Title: Photovoltaic devices : computation of the spectral mismatch correction for measurements of photovoltaic devices Scope: Describes the procedure for correcting the spectral mismatch error introduced in the testing of a photovoltaic device, caused by the mismatch between the test spectrum and the reference spectrum (e.g. AM1.5 spectrum) and by the mismatch between the spectral […]

View

SLS IEC 60904-5

Title: Photovoltaic devices : Determination of the equivalent cell temperature (ect) of photovoltaic (pv) devices by the open-circuit voltage method Scope: Describes the preferred method for determining the equivalent cell temperature (ECT) of PV devices (cells, modules and arrays of one type of module), for the purposes of comparing their thermal characteristics, determining NOCT (nominal […]

View

SLS IEC 60904-4

Title: Photovoltaic devices: photovoltaic reference devices – procedures for establishing calibration traceability Scope: sets the requirements for calibration procedures intended to establish the traceability of photovoltaic (PV) reference devices to SI units as required by IEC 60904-2. This document applies to PV reference devices that are used to measure the irradiance of natural or simulated […]

View

SLS IEC 60904-3

Title: Photovoltaic devices: measurement principles for terrestrial photovoltaic (pv) solar devices with reference spectral irradiance data Scope: Applies to the following photovoltaic devices for terrestrial applications: – solar cells with or without a protective cover; – sub-assemblies of solar cells; – modules; and – systems. NOTE The term “test specimen” is used to denote any […]

View

Latest Announcements

Explore Our Services

SLSI has 60 years of experience with providing wide area of specialty services listed below.

Standard Formulation

SLS Mark Product Certification

Organic Product Certification

Import Inspection

Metrology & Instrument Calibration

Laboratory Testing Services

Systems Certification

Training

Documentation & Information Service

Sri Lanka National Quality Award

Small & Medium Enterprise Quality Award

Energy Labeling

Information Outreach Programmes

Capacity Building

Pre-export Inspection Scheme (PEIS)

Latest News & Events

June 12, 2025

ශ්‍රී ලංකා ප්‍රමිති ආයතනයේ ආපන ශාලාව සදහා මිල ගණන් කැඳවීම

June 9, 2025

Vacancies For Technical Officer and Management Assistant (non-technical)

May 15, 2025

WORKSHOP ON INTERNAL AUDITING FOR ISO 9001 :2015 QUALITY MANAGEMENT SYSTEMS

May 20, 2025

WORKSHOP ON APPLICATION OF SEVEN QUALITY CONTROL TOOLS (Q7)

May 21, 2025

TRAINING PROGRAMME ON CALIBRATION OF MONITORING AND MEASURING DEVICES

May 27, 2025

WORKSHOP ON ISO 50001:2018 STANDARD AND IMPLEMENTATION OF ENERGY MANAGEMENT SYSTEMS (EnMS)

May 29, 2025

TRAINING PROGRAMME ON GOOD MANUFACTURING PRACTICES (GMP) FOR FOOD INDUSTRY

April 28, 2025

April 10, 2025

Join the Sri Lanka Standards Institution (SLSI) Library – Your Gateway to Standards and Quality Information

April 1, 2025

TRAINING PROGRAMME ON MEASUREMENT ASSURANCE AND INTERPRETATION OF TEST REPORTS

Training Calendar

Week of Sep 8th

New Releases

SLS ISO 37123

SLS ISO 23832

SLS IEC TS 60904-1-2

SLS IEC 60904 -9

SLS IEC 60904- 8- 1

SLS IEC 60904-8

SLS IEC 60904-7

SLS IEC 60904-5

SLS IEC 60904-4

SLS IEC 60904-3

Quick Links

Draft Sri Lanka Standards/Amendments for Public Comments

Sri Lanka Standards Freely Available for Download

Sri Lanka Standards Catalogue

Draft ISO Standards / Amendments for Public Comments

ISO publications Freely Available for Download

National Single Window

Important Information

+94 112 019 600 slsi@slsi.lk