NIST HDBK 44 - Specifications, Tolerances, and Other Technical Requirements for Weighing and Measuring Devices
January 1, 2018 - NIST

Foreword NIST Handbook 44 was first published in 1949, having been preceded by similar handbooks of various designations and in several forms, beginning in 1918. NIST Handbook 44 is published in its entirety each year following the Annual Meeting of the National Conference on Weights...

FIPS PUB 202 - SHA-3 Standard: Permutation-Based Hash and Extendable-Output Functions
August 1, 2015 - NIST

INTRODUCTION This Standard specifies a new family of functions that supplement SHA-1 and the SHA-2 family of hash functions specified in FIPS 180-4 [1]. This family, called SHA-3 (Secure Hash Algorithm-3), is based on KECCAK [2]-the algorithm1 that NIST selected as the winner of the public...

NIST SP 800-171 - Protecting Controlled Unclassified Information in Nonfederal Information Systems and Organizations
June 1, 2015 - NIST

PURPOSE AND APPLICABILITY The purpose of this publication is to provide federal agencies with recommended requirements for protecting the confidentiality of CUI: (i) when the CUI is resident in nonfederal information systems and organizations; (ii) when the information systems where the CUI resides...

NIST NISTIR 6969 - Selected Laboratory and Measurement Practices and Procedures to Support Basic Mass Calibrations
September 1, 2014 - NIST

Foreword This NIST IR of Selected Publications was been compiled as an interim update for a number of Good Laboratory Practices, Good Measurement Practices, Standard Operating Procedures, Statistical Techniques and Reference Tables. This interim publication was used as a reference document...

NIST SP 800-30 - Guide for Conducting Risk Assessments
September 1, 2012 - NIST

PURPOSE AND APPLICABILITY The purpose of Special Publication 800-30 is to provide guidance for conducting risk assessments of federal information systems and organizations, amplifying the guidance in Special Publication 800-39. Risk assessments, carried out at all three tiers in the risk management...

NIST SP 330 - The International System of Units (SI)
March 1, 2008 - NIST

Preface to the 8th edition We have pleasure in introducing the 8th edition of this publication, commonly called the SI Brochure, which defines and presents the Système International d'Unités, the SI (known in English as the International System of Units). This Brochure is published as a hard copy,...

NIST SP 811 - Guide for the Use of the International System of Units (SI)
January 1, 2008 - NIST

Purpose of Guide The International System of Units was established in 1960 by the 11th General Conference on Weights and Measures (CGPM- see Preface). Universally abbreviated SI (from the French Le Système International d'Unités), it is the modern metric system of measurement used throughout the...

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ASTM D1293 - Standard Test Methods for pH of Water
January 15, 2018 - ASTM

These test methods cover the determination of pH by electrometric measurement using the glass electrode as the sensor. Two test methods are given as follows Test Method A covers the precise measurement of pH in water utilizing at least two of seven standard reference buffer solutions for instrument...

ASTM E74 - Standard Practices for Calibration and Verification for Force-Measuring Instruments
February 1, 2018 - ASTM

The purpose of these practices is to specify procedures for the calibration of force-measuring instruments. Procedures are included for the following types of instruments: Elastic force-measuring instruments, and Force-multiplying systems, such as balances and small platform scales. NOTE...

ASTM E230/E230M - Standard Specification for Temperature-Electromotive Force (emf) Tables for Standardized Thermocouples
November 1, 2017 - ASTM

This specification contains reference tables (Tables 8 to 25) that give temperature-electromotive force (emf) relationships for Types B, E, J, K, N, R, S, T, and C thermocouples.2 These are the thermocouple types most commonly used in industry. The tables contain all of the temperature-emf data...

ASTM D4753 - Standard Guide for Evaluating, Selecting, and Specifying Balances and Standard Masses for Use in Soil, Rock, and Construction Materials Testing
May 1, 2015 - ASTM

This guide provides minimum requirements for generalpurpose scales, balances, and standard masses used in testing soil, rock, and related construction materials. This guide provides guidance for evaluating, selecting, and specifying general purpose scales, balances, and standard...

ASTM E1951 - Standard Guide for Calibrating Reticles and Light Microscope Magnifications
November 1, 2014 - ASTM

This guide covers methods for calculating and calibrating microscope magnifications, photographic magnifications, video monitor magnifications, grain size comparison reticles, and other measuring reticles. Reflected light microscopes are used to characterize material microstructures. Many materials...

ASTM E77 - Standard Test Method for Inspection and Verification of Thermometers
May 1, 2014 - ASTM

This test method covers visual and dimensional inspection and test for scale accuracy to be used in the verification of liquid-in-glass thermometers as specified in Specifications E1 and E2251. However, these procedures may be applied to other liquid-in-glass thermometers.2 NOTE 1-The use of...

ASTM E2859 - Standard Guide for Size Measurement of Nanoparticles Using Atomic Force Microscopy
December 1, 2011 - ASTM

The purpose of this document is to provide guidance on the quantitative application of atomic force microscopy (AFM) to determine the size of nanoparticles2 deposited in dry form on flat substrates using height (z-displacement) measurement. Unlike electron microscopy, which provides a...