lead standard curve

lead standard curve, Total:262 items.

The international standard classification for "lead standard curve" includes: Noise with respect to human beings , Optical measuring instruments , Occupational safety. Industrial hygiene .

The Chinese standard classification for "lead standard curve" includes: Acoustic Measurement , Optical testing instrument , School sanitation , Fuel oil , Pollutants discharge standards for mechanical and electrical industries .

General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China

GB/T 4963-2007 Acoustics—Normal equal-loudness-level contours
GB/T 36063-2018(英文版) Nanotechnology: Standard Raman frequency shift curves for Raman spectroscopy calibration
GB/T 36063-2018e Nanotechnologies—Raman shift standard curve for spectrometer calibration
GB/T 36063-2018 Nanotechnologies—Raman shift standard curve for spectrometer calibration
GB 15058-1994 Reference gasoline (leaded regular)
GB 8771-1988 Hygienic STANDARD for lead content of pencil coating
GB 1474-1988 Lead and lead-antimony alloy wire (2005.10.14 the national standard was abolished, and the transition period was 1 year)

Group Standards of the People's Republic of China

T/SXCAA 012-2021 Guidelines for Quality Control of Linear Calibration Curves
T/CECS 1068-2022 Reliability Appraisal Standards for Hyperbolic Cooling Towers
T/SHZSAQS 00084-2022 Formaldehyde standard curve preparation technical regulations

Taiwan Provincial Standard of the People's Republic of China

CNS 13471-1995 Lead Standard Solution

Professional Standard - Military and Civilian Products

WJ 219-1964 Standard part lead seal (restricted standard)
WJ 2508-1998 Double lead--2 standard substance specifications

Professional Standard - Environmental Protection

HJ 510-2009 Cleaner Production Standard Waste Lead-acid Battery Recycling Industry

American Society for Testing and Materials (ASTM)

ASTM D2493/D2493M-09 Standard Viscosity-Temperature Chart for Asphalts
ASTM E561-19e1 Standard Test Method for K R Curve Determination
ASTM E561-21 Standard Test Method for K R Curve Determination
ASTM E561-20 Standard Test Method for K R Curve Determination
ASTM E561-19 Standard Test Method for K R Curve Determination
ASTM E561-10e1 Standard Test Method for K-R Curve Determination
ASTM E561-08e1 Standard Test Method for K-R Curve Determination
ASTM E561-22 Standard Test Method for K R Curve Determination
ASTM B189-95 Standard Specification for Lead-Coated and Lead-Alloy-Coated Soft Copper Wire for Electrical Purposes
ASTM E561-98 Standard Practice for R-Curve Determination
ASTM E561-15 Standard Test Method for K R Curve Determination
ASTM E561-08 Standard Test Method for K-R Curve Determination
ASTM E561-05 Standard Test Method for K-R Curve Determination
ASTM B189-05(2021) Standard Specification for Lead-Coated and Lead-Alloy-Coated Soft Copper Wire for Electrical Purposes
ASTM B189-05(2010) Standard Specification for Lead-Coated and Lead-Alloy-Coated Soft Copper Wire for Electrical Purposes
ASTM B189-05(2015) Standard Specification for Lead-Coated and Lead-Alloy-Coated Soft Copper Wire for Electrical Purposes
ASTM B189-05 Standard Specification for Lead-Coated and Lead-Alloy-Coated Soft Copper Wire for Electrical Purposes
ASTM E561-15a Standard Test Method for K R Curve Determination
ASTM E561-10e2 Standard Test Method for K-R Curve Determination
ASTM E561-05e1 Standard Test Method for K-R Curve Determination
ASTM F1832-97 Standard Test Method for Determining the Force-Draw and Let-Down Curves for Archery Bows
ASTM F1832-07(2017) Standard Test Method for Determining the Force-Draw and Let-Down Curves for Archery Bows
ASTM D1336-07(2011) Standard Test Method for Distortion of Yarn in Woven Fabrics
ASTM B981/B981M-19 Standard Specification for Low-Leaded Brass Rod, Bar, Wire, and Shapes
ASTM E2218-02(2008) Standard Test Method for Determining Forming Limit Curves
ASTM B478-85(1997)e1 Standard Test Method for Cross Curvature of Thermostat Metals
ASTM D87-07a Standard Test Method for Melting Point of Petroleum Wax (Cooling Curve)
ASTM E2218-15 Standard Test Method for Determining Forming Limit Curves
ASTM B478-85(2008) Standard Test Method for Cross Curvature of Thermostat Metals
ASTM E2218-23 Standard Test Method for Determining Forming Limit Curves
ASTM E2218-14 Standard Test Method for Determining Forming Limit Curves
ASTM E2218-14e1 Standard Test Method for Determining Forming Limit Curves
ASTM E561-10 Standard Test Method for K-R Curve Determination
ASTM D87-09(2014) Standard Test Method for Melting Point of Petroleum Wax 40;Cooling Curve41;
ASTM D87-07 Standard Test Method for Melting Point of Petroleum Wax (Cooling Curve)
ASTM D87-09 Standard Test Method for Melting Point of Petroleum Wax (Cooling Curve)
ASTM D87-09(2018) Standard Test Method for Melting Point of Petroleum Wax (Cooling Curve)
ASTM D1336-07(2015) Standard Test Method for Distortion of Yarn in Woven Fabrics
ASTM B455/B455M-20 Standard Specification for Copper-Zinc-Lead Alloy (Leaded-Brass) Extruded Shapes
ASTM D1336-97 Standard Test Method for Distortion of Yarn in Woven Fabrics
ASTM E2218-02 Standard Test Method for Determining Forming Limit Curves
ASTM B455-01 Standard Specification for Copper-Zinc-Lead Alloy (Leaded-Brass) Extruded Shapes
ASTM D6068-96(2002)e1 Standard Test Method for Determining J-R Curves of Plastic Materials
ASTM D6068-10 Standard Test Method for Determining J-R Curves of Plastic Materials
ASTM D1336-97(2003) Standard Test Method for Distortion of Yarn in Woven Fabrics
ASTM B29-19 Standard Specification for Refined Lead
ASTM F3141-23 Standard Guide for Total Knee Replacement Loading Profiles
ASTM B29-03(2009) Standard Specification for Refined Lead
ASTM B29-03 Standard Specification for Refined Lead
ASTM B29-14 Standard Specification for Refined Lead
ASTM B319-91(2009) Standard Guide for Preparation of Lead and Lead Alloys for Electroplating
ASTM D6068-10(2018) Standard Test Method for Determining J-R Curves of Plastic Materials
ASTM D3883-04 Standard Test Method for Yarn Crimp or Yarn Take-up in Woven Fabrics
ASTM B319-91(1997) Standard Guide for Preparation of Lead and Lead Alloys for Electroplating
ASTM B319-91(2020) Standard Guide for Preparation of Lead and Lead Alloys for Electroplating
ASTM B319-91(2014) Standard Guide for Preparation of Lead and Lead Alloys for Electroplating
ASTM D83-84(2014) Standard Specification for Red Lead Pigment
ASTM D6068-96 Standard Test Method for Determining J-R Curves of Plastic Materials
ASTM E561-23 Standard Test Method for K R Curve Determination
ASTM D5059-14 Standard Test Methods for Lead in Gasoline by X-Ray Spectroscopy
ASTM C1464-00 Standard Specification for Bent Glass
ASTM C1464-16 Standard Specification for Bent Glass
ASTM C1464-21 Standard Specification for Bent Glass
ASTM C1464-06 Standard Specification for Bent Glass
ASTM C1464-06(2011) Standard Specification for Bent Glass
ASTM B560-00(2005) Standard Specification for Modern Pewter Alloys
ASTM E1605-22 Standard Terminology Relating to Lead in Buildings
ASTM D5059-14(2019) Standard Test Methods for Lead in Gasoline by X-Ray Spectroscopy
ASTM E2948-14 Standard Test Method for Conducting Rotating Bending Fatigue Tests of Solid Round Fine Wire
ASTM B560-00(2014) Standard Specification for Modern Pewter Alloys
ASTM B560-00 Standard Specification for Modern Pewter Alloys
ASTM F1832-07 Standard Test Method for Determining the Force-Draw and Let-Down Curves for Archery Bows
ASTM E1541-98(2003) Standard Practice for Specifying and Matching Color Using the Colorcurve System
ASTM B560-00(2010) Standard Specification for Modern Pewter Alloys
ASTM D81-87(2020) Standard Specification for Basic Carbonate White Lead Pigment
ASTM B29-92(1997) Standard Specification for Refined Lead
ASTM F2336-17 Standard Guide for Roller Hockey Playing Facilities
ASTM B455-10 Standard Specification for Copper-Zinc-Lead Alloy (Leaded-Brass) Extruded Shapes
ASTM B453/B453M-19 Standard Specification for Copper-Zinc-Lead Alloy (Leaded-Brass) Rod, Bar, and Shapes
ASTM B455-05 Standard Specification for Copper-Zinc-Lead Alloy (Leaded-Brass) Extruded Shapes
ASTM D3883-04(2008) Standard Test Method for Yarn Crimp and Yarn Take-up in Woven Fabrics
ASTM D910-15 Standard Specification for Leaded Aviation Gasolines
ASTM D910-17 Standard Specification for Leaded Aviation Gasolines
ASTM B453/B453M-01 Standard Specification for Copper-Zinc-Lead Alloy (Leaded-Brass) Rod, Bar, and Shapes
ASTM B453/B453M-05 Standard Specification for Copper-Zinc-Lead Alloy (Leaded-Brass) Rod, Bar, and Shapes
ASTM B455-10(2017) Standard Specification for Copper-Zinc-Lead Alloy (Leaded-Brass) Extruded Shapes
ASTM D6901-15 Standard Specification for Artists' Colored Pencils
ASTM D910-16a Standard Specification for Leaded Aviation Gasolines
ASTM D910-20 Standard Specification for Leaded Aviation Gasolines
ASTM E1605-18b Standard Terminology Relating to Lead in Buildings
ASTM D3883-99 Standard Test Method for Yarn Crimp or Yarn Take-up in Woven Fabrics
ASTM E1541-98 Standard Practice for Specifying and Matching Color Using the Colorcurve System
ASTM F1832-07(2011) Standard Test Method for Determining the Force-Draw and Let-Down Curves for Archery Bows
ASTM D6901-04 Standard Specification for Artists' Colored Pencils
ASTM D910-14a Standard Specification for Leaded Aviation Gasolines
ASTM E1605-18a Standard Terminology Relating to Lead in Buildings
ASTM D7535-09e1 Standard Test Method for Lead-210 in Water
ASTM D3883-04(2012) Standard Test Method for Yarn Crimp and Yarn Take-up in Woven Fabrics
ASTM C1656-07 Standard Guide for Measuring the Reactivity of Hydraulic Refractory Castables using Exothermic Profile
ASTM D910-19 Standard Specification for Leaded Aviation Gasolines
ASTM E1605-18 Standard Terminology Relating to Lead in Buildings
ASTM D5059-20 Standard Test Methods for Lead and Manganese in Gasoline by X-Ray Spectroscopy
ASTM D6901-06 Standard Specification for Artists'' Colored Pencils
ASTM D7547-09 Standard Specification for Unleaded Aviation Gasoline
ASTM D6901-03 Standard Specification for Artists' Colored Pencils
ASTM E1605-19 Standard Terminology Relating to Lead in Buildings
ASTM D7547-11 Standard Specification for Unleaded Aviation Gasoline
ASTM D910-16 Standard Specification for Leaded Aviation Gasolines
ASTM D910-17a Standard Specification for Leaded Aviation Gasolines
ASTM D910-20a Standard Specification for Leaded Aviation Gasolines
ASTM B389-81(2020) Standard Test Method for Thermal Deflection Rate of Spiral and Helical Coils of Thermostat Metal
ASTM D3813/D3813M-98(2003) Standard Test Method for Curling and Twisting on Unwinding of Pressure-Sensitive Tapes
ASTM D3813/D3813M-98 Standard Test Method for Curling and Twisting on Unwinding of Pressure-Sensitive Tapes
ASTM B453-96 Standard Specification for Copper-Zinc-Lead Alloy (Leaded-Brass) Rod (Withdrawn 2001)
ASTM B389-81(1998) Standard Test Method for Thermal Deflection Rate of Spiral and Helical Coils of Thermostat Metal
ASTM D3341-05 Standard Test Method for Lead in Gasoline-Iodine Monochloride Method
ASTM C1656-13 Standard Guide for Measuring the Reactivity of Hydraulic Refractory Castables using Exothermic Profile
ASTM D5059-07 Standard Test Methods for Lead in Gasoline by X-Ray Spectroscopy
ASTM D5059-98 Standard Test Methods for Lead in Gasoline by X-Ray Spectroscopy
ASTM C1699-09(2015) Standard Test Method for Moisture Retention Curves of Porous Building Materials Using Pressure Plates
ASTM D5059-21 Standard Test Methods for Lead and Manganese in Gasoline by X-Ray Fluorescence Spectroscopy
ASTM D5059-98(2003)e1 Standard Test Methods for Lead in Gasoline by X-Ray Spectroscopy
ASTM D5059-13 Standard Test Methods for Lead in Gasoline by X-Ray Spectroscopy
ASTM D3559-15 Standard Test Methods for Lead in Water
ASTM D3559-03 Standard Test Methods for Lead in Water
ASTM E1082-90(2007) Standard Test Method for Measurement of Vehicular Response to Traveled Surface Roughness
ASTM D3559-96 Standard Test Methods for Lead in Water
ASTM C1656-13(2018) Standard Guide for Measuring the Reactivity of Hydraulic Refractory Castables Using Exothermic Profile
ASTM E1082-90(2012) Standard Test Method for Measurement of Vehicular Response to Traveled Surface Roughness
ASTM F2771-10(2016) Standard Test Method for Determining the Luminance Curve of an Electroluminescent Lamp at Ambient Conditions
ASTM B453/B453M-11 Standard Specification for Copper-Zinc-Lead Alloy (Leaded-Brass) Rod, Bar, and Shapes
ASTM E1082-90(2002) Standard Test Method for Measurement of Vehicular Response to Traveled Surface Roughness
ASTM D7547-14a Standard Specification for Hydrocarbon Unleaded Aviation Gasoline
ASTM B749-03(2009) Standard Specification for Lead and Lead Alloy Strip, Sheet, and Plate Products
ASTM F2713-21 Standard Specification for Eye Protectors for Field Hockey
ASTM F534-97 Standard Test Method for Bow of Silicon Wafers
ASTM B453/B453M-11(2017) Standard Specification for Copper-Zinc-Lead Alloy (Leaded-Brass) Rod, Bar, and Shapes
ASTM F415-87(2005) Standard Test Method for Curl in Carbon Paper
ASTM D83-84(1996)e1 Standard Specification for Red Lead Pigment
ASTM E37-00 Standard Test Methods for Chemical Analysis of Pig Lead
ASTM E746-93(1998) Standard Test Method for Determining Relative Image Quality Response of Industrial Radiographic Film
ASTM D49-83(2008)e1 Standard Test Methods of Chemical Analysis of Red Lead
ASTM D7719-14 Standard Specification for High-Octane Unleaded Fuel
ASTM E746-02 Standard Test Method for Determining Relative Image Quality Response of Industrial Radiographic Film
ASTM D83-84(2020) Standard Specification for Red Lead Pigment
ASTM D7535-09 Standard Test Method for Lead-210 in Water
ASTM E1605-03 Standard Terminology Relating to Lead in Buildings
ASTM E1605-01a Standard Terminology Relating to Lead in Buildings
ASTM D7547-21 Standard Specification for Hydrocarbon Unleaded Aviation Gasoline
ASTM E1605-04 Standard Terminology Relating to Lead in Buildings
ASTM D7547-17 Standard Specification for Hydrocarbon Unleaded Aviation Gasoline
ASTM D1648-86(1999) Standard Specification for Basic Lead Silicochromate Pigment
ASTM D7547-18a Standard Specification for Hydrocarbon Unleaded Aviation Gasoline
ASTM E37-05 Standard Test Methods for Chemical Analysis of Pig Lead
ASTM D1648-86(2020) Standard Specification for Basic Lead Silicochromate Pigment
ASTM F2713-13 Standard Specification for Eye Protectors for Field Hockey
ASTM B749-14 Standard Specification for Lead and Lead Alloy Strip, Sheet, and Plate Products
ASTM F1703-13 Standard Guide for Skating and Ice Hockey Playing Facilities
ASTM F2771-10 Standard Test Method for Determining the Luminance Curve of an Electroluminescent Lamp at Ambient Conditions
ASTM D6200-01 Standard Test Method for Determination of Cooling Characteristics of Quench Oils by Cooling Curve Analysis
ASTM C1656-13(2023) Standard Guide for Measuring the Reactivity of Hydraulic Refractory Castables Using Exothermic Profile
ASTM A308-02 Standard Specification for Steel Sheet, Terne (Lead-Tin Alloy) Coated by the Hot-Dip Process

The American Road & Transportation Builders Association

AASHTO R 75-2016(R2020) Standard Practice for Developing a Family of Curves
AASHTO T 272-2015 Standard Method of Test for Family of Curves-One Point Method
AASHTO T 272-2010 Standard Method of Test for Family of Curves-One Point Method
AASHTO T 272-1986 Standard Method of Test for Family of Curves - One-Point Method HM-22; PART IIB R(2000)
AASHTO R 62-2013(R2017) Standard Practice for Developing Dynamic Modulus Master Curves for Asphalt Mixtures
AASHTO R 62-2013 Standard Practice for Developing Dynamic Modulus Master Curves for Asphalt Mixtures

AASHTO - American Association of State Highway and Transportation Officials

T 272-2010 Standard Method of Test for Family of Curves—One Point Method
T 272-2004 Standard Method of Test for Family of Curves - One-Point Method
T 272-2015 Standard Method of Test for Family of Curves-One Point Method
T 272-1986 Standard Method of Test for Family of Curves - One-Point Method (HM-22; PART IIB)
PP 62-2009 Standard Practice for Developing Dynamic Modulus Master Curves for Hot Mix Asphalt (HMA)
R 62-2013 Standard Practice for Developing Dynamic Modulus Master Curves for Asphalt Mixtures

German Institute for Standardization

DIN ISO 226 E:2001-11 Acoustics - Normal equal-loudness-level contours
DIN ISO 226:2006 Acoustics - Normal equal-loudness-level contours (ISO 226:2003);English version of DIN ISO 226:2006-04
DIN 48051-1:1959-09 Power current overhead lines; bent insulator spindles, standard design

International Organization for Standardization (ISO)

ISO 226:1987 Acoustics; Normal equal-loudness level contours
ISO 226:2023 Acoustics — Normal equal-loudness-level contours
ISO 226:2003 Acoustics - Normal equal-loudness-level contours
ISO 9177-3:2022 Mechanical pencils for technical drawings — Part 3: Black leads — Bending strengths of HB leads

British Standards Institution (BSI)

BS ISO 226:2003 Acoustics - Normal equal-loudness-level contours
PD IEC TR 60068-3-12:2022 Environmental testing. Supporting documentation and guidance. Method to evaluate a possible lead-free solder reflow temperature profile

Association Francaise de Normalisation

NF S30-003*NF ISO 226:2004 Acoustics - Normal equal-loudness-level contours

RU-GOST R

GOST 9735-1987 Profile grinders. Standards of accuracy

SCC

AASHTO R 75-2016(2020) Standard Practice for Developing a Family of Curves
AWWA C810-2017 Standard for Replacement and Flushing of Lead Service Lines
AASHTO T 272-2004 Standard Method of Test for Family of Curves---One-Point Method
AASHTO R 62-2013(2021) Standard Practice for Developing Dynamic Modulus Master Curves for Asphalt Mixtures
DANSK DS/ISO 9177-3:2022 Mechanical pencils for technical drawings – Part 3: Black leads – Bending strengths of HB leads
AASHTO PP 62-2009 Standard Practice for Developing Dynamic Modulus Master Curves for Hot Mix Asphalt (HMA)
BS PD IEC TR 60068-3-12:2022 Environmental testing-Supporting documentation and guidance. Method to evaluate a possible lead-free solder reflow temperature profile
BS PD IEC/TR 60068-3-12:2007 Environmental testing-Supporting documentation and guidance. Method to evaluate a possible lead-free solder reflow temperature profile
AWWA ACE95157 Lead Based Paint: Living With the OSHA Standard

SE-SIS

SIS SMS 2027-1975 Dust separating. Standard curves for dust
Nr 39-1992 Curve electronics according to Swedish standards

Korean Agency for Technology and Standards (KATS)

KS I ISO 226:2014 Acoustics — Normal equal-loudness level contours
KS I ISO 226:2003 Acoustics-Normal equal-loudness level contours
KS G ISO 9177-3-2017(2022) Mechanical pencils — Part 3: Black leads — Bending strengths of HB leads
KS A ISO 9177-3:2002 Mechanical pencils－Part 3：Black leads－Bending strengths of HB leads
KS M 1007-2008 Lead standard solution
KS M 1007-2008(2018) Lead standard solution
KS M 1007-1993 Lead Standard Solution
KS M 1007-2023 Lead standard solution
KS B 0887-1995 Recommended practice for brazing
KS D 1926-2009 Standard test methods for the determination of lead in ferromanganese

Spanish Association for Standardization (UNE)

UNE 37208:1978 CURVED LEAD WASTE PIPES.

KR-KS

KS G ISO 9177-3-2017 Mechanical pencils — Part 3: Black leads — Bending strengths of HB leads
KS A ISO 9177-3-2002 Mechanical pencils－Part 3：Black leads－Bending strengths of HB leads
KS G ISO 9177-3-2023 Mechanical pencils for technical drawings — Part 3: Black leads — Bending strengths of HB leads
KS M 1007-2008(2023) Lead standard solution

American National Standards Institute （ANSI)

ANSI/IEEE C37.112:1996 Standard Inverse-Time Characteristic for Overcurrent Relays

Standard Association of Australia （SAA）

AS 1469:1973 Criteria curves for rating noise and establishing acoustic environment
AS 2700S:1996(N55) Colour Standards for general purposes - Lead Grey

Society of Automotive Engineers (SAE)

SAE J739-1991 Cutting Edge - Curved Grader, Standard June 1991

PK-PSQCA

PS 122-1985 PAKISTAN STANDARD METHOD FOR THE DETERMINATION OF CRIMP OF YARN IN FABRIC

TH-TISI

TIS 958-1990 Standard for lead ingots
TIS 122-1975 Standard for lead content in plastic toys
TIS 7-1988 Standard for containers for lead.acid batteries
TIS 567-1985 Standard for separators for lead-acid batteries
TIS 13-1987 Standard for sulphuric acid for use in lead.acid batteries

GSO

GSO ISO 9177-3:2015 Mechanical pencils -- Part 3: Black leads -- Bending strengths of HB leads
GSO ASTM F1874:2021 Standard Test Method for Bend Testing of Needles Used in Surgical Sutures
BH GSO ASTM F3141:2023 Standard Guide for Total Knee Replacement Loading Profiles
BH GSO ASTM F1874:2022 Standard Test Method for Bend Testing of Needles Used in Surgical Sutures
GSO ASTM F3141:2023 Standard Guide for Total Knee Replacement Loading Profiles
BH GSO ISO 9177-3:2017 Mechanical pencils -- Part 3: Black leads -- Bending strengths of HB leads
GSO ASTM D5059:2022 Standard Test Methods for Lead in Gasoline by X-Ray Spectroscopy
BH GSO ASTM D5059:2023 Standard Test Methods for Lead in Gasoline by X-Ray Spectroscopy
BH GSO ASTM C1464:2022 Standard Specification for Bent Glass
GSO ASTM C1464:2021 Standard Specification for Bent Glass

IT-UNI

UNI S 195-1943 Insulation material standards. Numerical charts and graphs

Institute of Electrical and Electronics Engineers (IEEE)

IEEE 1459-2000 Trial-use standard definitions for the measurement of electric power quantities under sinusoidal, nonsinusoidal, balanced, or unbalanced conditions

Japanese Industrial Standards Committee (JISC)

JIS K 0015:1983 Lead standard solution

(U.S.) Joint Electron Device Engineering Council Soild State Technology Association

JEDEC JESD75-6-2006 PSO-N/PQFN Pinouts Standardized for 14-, 16-, 20-, and 24-Lead Logic Functions

YU-JUS

JUS U.J1.070-1986 Fire protection. Standard time-temperature curve in fire resistance test furnaces for constructions

National Association of Corrosion Engineers (NACE)

NACE RP0197-1997 Standard Format for Computerized Electrochemical Polarization Curve Data Files
NACE RP0197-2004 Standard Format for Computerized Electrochemical Polarization Curve Data Files Item No. 21080

RO-ASRO

STAS 6901-1978 Psycho-physiological acou stics STANDARD CURVES OF EQUAL LOUDNESS LEVEL AND RELATIONS BETWEEN SOUND PRESSURE LEVELS
STAS 6612/2-1991 Mines for pencils bending reslstance determination