Cerium boride hardness

Cerium boride hardness, Total:185 items.

The international standard classification for "Cerium boride hardness" includes: Cutting tools , Turning tools , Abrasives , Other non-ferrous metals and their alloys , Physics. Chemistry , Gases for industrial application , Oxides , Bases , Cadmium, cobalt and their alloys , Salts , Surface active agents , Heat treatment and coating , Medical Sciences and health care facilities in general .

The Chinese standard classification for "Cerium boride hardness" includes: Powder metallurgy material and product , Cutting tools , Grinding material and apparatus , Rare metals and their alloys , Artificial lens , Industrial gas and chemical gas , Rare metals and their alloys analysis method , Inorganic salt , Chemical additive , Heat treatment , Technical Management , Rare refractory metals and their compounds , Diagnostic standard for public nuisance diseases .

Professional Standard - Aerospace

QJ 2587.1-1993 Cubic Boron Nitride / Cemented Carbide Bullnose Tool in Mechanical Consolidation Type
QJ 2588.3-1993 Cubic Boron Nitride / Cemented Carbide Shim for Lathe Tool in Indexable Type
QJ 2339.1-1992 Cubic boron nitride/tungsten carbide welding inserts
QJ 2587.2-1993 Cubic Boron Nitride / Cemented Carbide Inner-Bore Lathe Tool in Mechanical Consolidation Type
QJ 2339.3-1992 Cubic boron nitride/tungsten carbide mechanical clamping head
QJ 2587.3-1993 Cubic Boron Nitride / Cemented Carbide Regular Screw Thread Lathe Tool in Mechanical Consolidation Type
QJ 2586.1-1993 Cubic Boron Nitride / Cemented Carbide Bullnose Tool in Welded Type
QJ 2341.3-1992 Cubic boron nitride/tungsten carbide high rigidity boring tool holder
QJ 2341.4-1992 Cubic boron nitride/tungsten carbide high rigidity boring tool technical conditions
QJ 2339.2-1992 Cubic boron nitride/tungsten carbide indexable inserts
QJ 2586.5-1993 Cubic Boron Nitride / Technical Conditions for Cemented Carbide Lathe Tool in Welded Type
QJ 2588.5-1993 Cubic Boron Nitride / Technical Specification for Cemented Carbide Lathe Tool in Indexable Type
QJ 2586.4-1993 Cubic Boron Nitride / Cemented Carbide Slotting Tool in Welded Type
QJ 2341.2-1992 Cubic Boron Hydride / Cemented Carbide Unfair-hole Boring Cutter with High Stiffness
QJ 2341.1-1992 Cubic boron nitride/tungsten carbide high rigidity through hole boring tool
QJ 2586.2-1993 Cubic Boron Nitride / Cemented Carbide Inner Bore Lathe Tool in Welded Type
QJ 2587.4-1993 Cubic Boron Nitride / Technical Conditions for Cemented Carbide Lathe Tool in Mechanical Clamped Type
QJ 2588.2-1993 Cubic Boron Nitride / Cemented Carbide Lathe Tool in Upthurst Type & Indexable Type
QJ 2339.4-1992 Cubic boron nitride/tungsten carbide insert technical conditions
QJ 2586.3-1993 Cubic Boron Nitride / Cemented Carbide General Purpose Thread Lathe Tool in Welded Type
QJ 2588.1-1993 Cubic Boron Nitride / Cemented Carbide Eccentric Lathe Tool in Indexable Type

国家市场监督管理总局、中国国家标准化管理委员会

GB/T 40795.1-2021 Chemical analysis method of lanthanum-cerium metals and their compounds—Part 1:Determination of cerium content—Ammonium ferrous sulfate titration method
GB/T 39708-2020 Rhodium（Ⅲ） sulfate
GB/T 6408-2018 Superabrasive—Cubic boron nitride
GB/T 38061-2019 Cerium dioxide nanomaterial
GB/T 39820-2021 Cerium bromide scintillator
GB/T 39231-2020 Cerium chloride anhydrate

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

GB/T 4155-2012 Cerium oxide
GB/T 6406-1996 Super abrasive -Grain sizes of diamond or cubic boron nitride
GB/T 5241-1985 Cerium-Concentrate hydrate
GB/T 3311-1982 Determination of cerium in cerium-tungsten alloys--Oxidation-reduction volumetry
GB/T 6408-2003 Super abrasive—Cubic boron nitride
GB/T 4155-2012(英文版) Cerium oxide
GB/T 6405-2017 Superabrasive—Types of cubic boron nitride
GB/T 4155-2003 Cerium oxide
GB/T 23591-2009 Lanthanum-cerium-terbium oxide
GB/T 4155-1992 Cerium oxide

工业和信息化部

XB/T 233-2020 Lanthanum-cerium oxide
XB/T 519-2021 Cerium sulfide
XB/T 229-2018 Cerium-praseodymium oxides
XB/T 518-2021 Cerium-zirconium composite oxide
YS/T 1553-2022 Titanium diboride powder
XB/T 222-2020 Cerium hydroxide
HG/T 5551-2019 Boron oxide(Boric anhydride)for industrial use
JC/T 2614-2021 Cerium doped lanthanum bromide scintillator
XB/T 501-2020 Lanthanum hexaboride
XB/T 236-2020 Cerium fluoride
JB/T 13943-2020 Superabrasive products-Diamond or cubic boron nitride abrasive cloth
XB/T 509-2019 Lanthanum-cerium sulfide

Professional Standard - Rare Earth

XB/T 501-1993 Lanthanum hexaboride
XB/T 243-2023 Lanthanum and cerium chloride
XB/T 222-2008 Cerium Hydroxide
XB/T 220-2008 Cerium-Terbium oxide
XB/T 225-2013 Cerium-gadolinium-terbium oxide
XB/T 501-2008 Lanthanum hexaboride
XB/T 523-2023 Superfine cerium oxide powder
XB/T 242-2023 Lanthanum Cerium Fluoride

Professional Standard - Chemical Industry

HG/T 3584-1999 Potassium borohydride
HG/T 3584～3585-2023 Industrial potassium borohydride and industrial sodium borohydride (2023)
HG/T 4072-2008 Cobalt boroacylate
HG/T 3584-2011 Potassium borohydride
HGB 3273-1960 Boron anhydride (boron trioxide)
HGB 3205-1960 Cerous chloride

Professional Standard - Machinery

JB/T 8002-2012 Superabrasive products —Synthetic diamond or cubic boron nitride lapping paste
JB/T 8002-1999 Superabrasive Products - Synthetic Diamond or Cubic Boron Nitride Lapping Paste
JB/T 7709-2007 Inspection method of microstructure hardeness and depth of boronized layer
JB/T 7994-2012 Superabrasive — Chemical analysis method for cubic boran nitricle
JB/T 7709-1995 Detection method of microstructure, hardness and layer depth of boronizing layer
JB/T 10041-1999 Carbide-backed pocked polycrystalline diamond or polycrystalline cubic boron nitride blanks species，dimensions
JB/T 7425-2012 Superabrasive products —Technical specifications for diamond or cubic boron nitride abrasive products
JB/T 7425-2023 Technical Specifications for Diamond or Cubic Boron Nitride Abrasives for Superabrasive Products
JB/T 10041-2018 Superabrasive-Species and dimensions of polycrystalline diamond composite (PDC)or polycrystalline cubic boron nitride composite(PCBN)
JB/T 10041-2008 Polycrystalline diamond compact or polycrystalline cubicboron nitride blanks species,dimensions
JB/T 7990-1998 Super-hard abrasive Micro powder of man-made diamond and borazon
JB/T 7990-2012 Superabrasive - Synthetic Diamond and Cubic Boron Nitride Micropowder

Professional Standard - Electron

SJ 1590-1980 Methods for analysis of Cerium oxide in Cerium-Tungsten powder,plates and bars
SJ/T 10087.6-1991 Methods of chemical analysis for glass raw materials for colour picture tubes - Methods for chemical analysis of cerium hydrate

Shaanxi Provincial Standard of the People's Republic of China

DB61/T 1496-2021 Determination of iodide in water by arsenic and cerium catalytic spectrophotometric method

Professional Standard - Non-ferrous Metal

YS/T 500-2013 Determination of Cerium Content in Cerium-tungsten Alloys Oxidation - Reduction Titration
YS/T 500-2006 Determination of cerium in cerium-tungsten alloys -- oxidation-reduction volumetry

Professional Standard - Hygiene

WS/T 107.1-2015 Determination of iodine in urine part 1: arsenic-cerium-catalyzed spectrophotometric method
WS/T 107-2006 Method for determination of iodine in urine by As3+-Ce4+ catalytic spectrophotometry
WS 302-2008 Method for determination of iodine in foodstuff by As(Ⅲ) - Ce4+ catalytic spectrophotometry

Professional Standard - Agriculture

WS/T 302-2008 Method for determination of iodine in foodstuff by As(Ⅲ)-Ce4+ catalytic spectrophotometry

国家卫生计生委

WS/T 572-2017 Determination of iodine in serum - As3+一Ce4+ catalytic spectrophotometry

工业和信息化部/国家能源局

JB/T 12981-2016 Polycrystalline cubic boron nitride for superabrasive metal processing
JB/T 13306-2017 Superabrasive一Testing method of impurity content in cubic boron nitride

Taiwan Provincial Standard of the People's Republic of China

CNS 1604-1964 Boric Anhydride (Boron Trioxide)
CNS 1638-1964 Cerc Ammouium Sulfate

Inner Mongolia Provincial Standard of the People's Republic of China

DB15/T 1079-2016 Rare earth sulfide pigment cerium sulfide

中华人民共和国国家卫生和计划生育委员会

WS/T 107-1999 Method for determination of iodine in urine by As (III)-Ce4+catalytic spectrophotometry

Professional Standard - Ferrous Metallurgy

YB 4048-1991 Lanthanum cerium oxide enrichment

Military Standard of the People's Republic of China-General Armament Department

GJB 9899-2020 Specification for lanthanum bromochloride (cerium) scintillator
GJB 3380-1998 Specification for boron carbide coated boron fibers
GJB 9667-2019 Specification for lanthanum (cerium) chloride (fluoro) scintillator

卫生健康委员会

WS/T 107.1-2016 Determination of iodine in urine-Part 1:As^(3+)-Ce^(4+)catalytic spectrophotometry

Guangxi Provincial Standard of the People's Republic of China

DB45/T 2147-2020 Technical requirements for cerium, praseodymium and neodymium oxide

Professional Standard - Building Materials

JC/T 2684-2022 Hexagonal boron nitride

British Standards Institution (BSI)

BS 5688-21:1979 Methods of test for orthoboric acid (boric acid), diboron trioxide (boric oxide), disodium tetraborates, sodium perborates and crude sodium borates for industrial use - Determination of bulk density of sodium perborates
BS 5688-13:1979 Methods of test for orthoboric acid (boric acid), diboron trioxide (boric oxide), disodium tetraborates, sodium perborates and crude sodium borates for industrial use - Determination of particle size distribution of sodium perborates by mechanical sieving
BS 5688-2:1979 Methods of test for orthoboric acid (boric acid), diboron trioxide (boric oxide), disodium tetraborates, sodium perborates and crude sodium borates for industrial use - Determination of boric oxide content of boric oxide
BS 5688-16:1979 Methods of test for orthoboric acid (boric acid), diboron trioxide (boric oxide), disodium tetraborates, sodium perborates and crude sodium borates for industrial use - Determination of chloride content of boric acid, boric oxide and disodium tetraborates
BS 5688-5:1979 Methods of test for orthoboric acid (boric acid), diboron trioxide (boric oxide), disodium tetraborates, sodium perborates and crude sodium borates for industrial use - Determination of sulphur compounds in boric acid, boric oxide, disodium tetraborates a
BS 5688-8:1979 Methods of test for orthoboric acid (boric acid), diboron trioxide (boric oxide), disodium tetraborates, sodium perborates and crude sodium borates for industrial use - Determination of sodium oxide and boric oxide contents of crude sodium borates
BS 5688-6:1979 Methods of test for orthoboric acid (boric acid), diboron trioxide (boric oxide), disodium tetraborates, sodium perborates and crude sodium borates for industrial use - Determination of manganese content of boric acid, boric oxide and disodium tetraborate
BS 5688-14:1979 Methods of test for orthoboric acid (boric acid), diboron trioxide (boric oxide), disodium tetraborates, sodium perborates and crude sodium borates for industrial use - Determination of chromium content of boric acid, boric oxide and disodium tetraborates
BS 5688-1:1979 Methods of test for orthoboric acid (boric acid), diboron trioxide (boric oxide), disodium tetraborates, sodium perborates and crude sodium borates for industrial use - Determination of boric acid content of boric acid
BS 5688-7:1979 Methods of test for orthoboric acid (boric acid), diboron trioxide (boric oxide), disodium tetraborates, sodium perborates and crude sodium borates for industrial use - Determination of copper content of boric acid, boric oxide and disodium tetraborates
BS 5688-17:1979 Methods of test for orthoboric acid (boric acid), diboron trioxide (boric oxide), disodium tetraborates, sodium perborates and crude sodium borates for industrial use - Determination of iron content of boric acid, boric oxide, disodium tetraborates, sodiu
BS 5688-0:1986 Methods of test for orthoboric acid (boric acid), diboron trioxide (boric oxide), disodium tetraborates, sodium perborates and crude sodium borates for industrial use - General introduction
BS 5688-12:1979 Methods of test for orthoboric acid (boric acid), diboron trioxide (boric oxide), disodium tetraborates, sodium perborates and crude sodium borates for industrial use - Determination of total titanium content of crude sodium borates
BS 5688-0:1986(2011) Methods of test for Orthoboric acid (boric acid), diboron trioxide (boric oxide), disodium tetraborates, sodium perborates and crude sodium borates for industrial use — Part 0 : General introduction
BS 5688-18:1979 Methods of test for orthoboric acid (boric acid), diboron trioxide (boric oxide), disodium tetraborates, sodium perborates and crude sodium borates for industrial use - Determination of rate of solution of sodium perborates
BS 5688-4:1979 Methods of test for boric acid, boric oxide, disodium tetraborates, sodium perborates and crude sodium borates for industrial use - Determination of sodium oxide, boric oxide and available oxygen contents of hydrated sodium perborates
BS 5688-27:1986 Methods of test for orthoboric acid (boric acid), diboron trioxide (boric oxide), disodium tetraborates, sodium perborates and crude sodium borates for industrial use - Determination of total and alkali-soluble silica contents of crude sodium borates
BS 5688-11:1979 Methods of test for orthoboric acid (boric acid), diboron trioxide (boric oxide), disodium tetraborates, sodium perborates and crude sodium borates for industrial use - Determination of total aluminium content of crude sodium borates
BS 5688-19:1979 Methods of test for orthoboric acid (boric acid), diboron trioxide (boric oxide), disodium tetraborates, sodium perborates and crude sodium borates for industrial use - Determination of iron soluble in alkaline medium in crude sodium borates
BS 5688-3:1979 Methods of test for boric acid, boric oxide, diRsodium tetraborates, sodium perborates and crude sodium borates for industrial use - Determination of sodium oxide and boric oxide contents and loss on ignition of disodium tetraborates
BS 5688-9:1979 Methods of test for orthoboric acid (boric acid), diboron trioxide (boric oxide), disodium tetraborates, sodium perborates and crude sodium borates for industrial use - Determination of loss in mass of crude sodium borates after heating at a temperature o
BS 5688-15:1979 Methods of test for orthoboric acid (boric acid), diboron trioxide (boric oxide), disodium tetraborates, sodium perborates and crude sodium borates for industrial use - Determination of water content of disodium tetraborates and crude sodium borates
BS 5688-20:1979 Methods of test for orthoboric acid (boric acid), diboron trioxide (boric oxide), disodium tetraborates, sodium perborates and crude sodium borates for industrial use - Determination of aluminium soluble in alkaline medium in crude sodium borates
BS ISO 19979:2018 Rubber, vulcanized or thermoplastic. Determination of hardness. Indentation hardness by durometer method (Shore hardness)
BS ISO 48-4:2018 Rubber, vulcanized or thermoplastic. Determination of hardness. Indentation hardness by durometer method (Shore hardness)
BS 5688-10:1979 Methods of test for orthoboric acid (boric acid), diboron trioxide (boric oxide), disodium tetraborates, sodium perborates and crude sodium borates for industrial use - Determination of matter insoluble in alkaline medium and preparation of test solutions

SCC

BS 5688-26:1981 Methods of test for boric acid, boric oxide, $7Idi$7Rsodium tetraborates, sodium perborates and crude sodium borates for industrialuse-Determination of degree of attrition of sodium perborates
BS 5688-23:1981 Methods of test for boric acid, boric oxide, $7Idi$7Rsodium tetraborates, sodium perborates and crude sodium borates for industrialuse-Determination of total nickel content of boric acid, boric oxide and $7Idi$7Rsodium tetraborates and the alkali-solub...
DIN 54387-2 E:2015 Draft Document - Testing of ceramic raw and basic materials - Chemical analysis of boron carbide, boron nitride, other metal borides and elemental boron - Part 2: Determination of total boron, soluble boron compounds, HNO<(Index)3>-soluble boron ...
BS 3476:1962 Specification for boric acid and boric oxide, technical grades
BS 5688-22:1981 Methods of test for boric acid, boric oxide, $7Idi$7Rsodium tetraborates, sodium perborates and crude sodium borates for industrialuse-Determination of cobalt content of boric acid, boric oxide and $7Idi$7Rsodium tetraborates
BS 5688-0:1979 Methods of test for boric acid, boric oxide, $7Idi$7Rsodium tetraborates, sodium perborates and crude sodium borates for industrialuse-General introducion
BS 3476:1980 Specification for boric acid and boric oxide, technical grades
AENOR UNE 55568:1980 Surface agents. Boric acid, boric oxide, disodium tetraborates, sodium perborates and crude sodium borates used as raw materials for detergent formulations. Determination of iron content. Photometric method with 2.2'-beep...

RU-GOST R

GOST 23862.12-1979 Cerium and its dioxide. Chemical-spectral method of determination of iron, cobalt, manganese, copper and nickel
GOST 23862.16-1979 Rare-earth metals and their oxides. Method of determination of cerium and terbium

International Organization for Standardization (ISO)

ISO 3122:1976 Boric acid, boric oxide, disodium tetraborates, sodium perborates and crude borates for industrial use — Determination of iron content — 2,2'- Bipyridyl photometric method
ISO 2214:1972 Boric acid, boric oxide and Disodium tetraborates for industrial use; Determination of manganese content; Formaldehyde oxime photometric method
ISO 5933:1980 Boric acid, boric oxide, disodium tetraborates and crude sodium borates for industrial use; determination of total nickel content of boric acid, boric oxide and disodium tetraborates and the alkali-soluble nickel content of crude sodium borates; furil alp
ISO 3119:1976 Boric acid, boric oxide and disodium tetraborates for industrial use; Determination of chromium content; Diphenylcarbazide photometric method
ISO 5932:1980 Boric acid, boric oxide and disodium tetraborates for industrial use; Determination of cobalt content; 2- nitroso-1- naphthol photometric method
ISO 1918:1972 Boric acid, boric oxide, disodium tetraborates and crude sodium borates for industrial use; Determination of sulphur compounds; Volumetric method
ISO 1818:1975 Vulcanized rubbers of low hardness (10 to 35 IRHD); Determination of hardness
ISO 1400:1975 Vulcanized rubbers of high hardness (85 to 100 IRHD); Determination of hardness

BE-NBN

NBN T 03-357-1981 Boric acid, boric oxide, disodium tetraborates, sodium perborates and crude sodium borates for industrial use - Determination of iron content - 2,21-Bipyridyl photometric method
NBN T 03-346-1981 Boric acid, boric oxide and disodium tetraborates for industrial use - Determination of manganese content - Formaldehyde oxime photometric method
NBN T 03-354-1981 DIPHENYLCARBAZIDE PHOTOMETRIC METHOD
NBN T 03-345-1981 Boric acid, bortc oxide, disodium tetraborates and crude sodium borates for industrial use - Determination of sulphur compounds -Volumetric method
NBN T 03-347-1981 Boric acid, boric oxide and disodiumtetraboratas for industrial

YU-JUS

JUS H.B8.357-1982 Boric acid, bori? oxide and disodium tetraborates for industrialu se. Daterm inati on of manganese content Formaldehyde oxime photometric method
JUS H.B8.358-1982 Boric acid, bori? oxide and disodium tetraborates for industrial use. Determination of chromium content Diphenylcarbazidephotometric method
JUS H.B8.360-1982 Boric acid, boric oxide and disodium tetraborates for industrial use. Determination of nickel content. Furil a-dioxime photometric method
JUS H.B8.359-1982 Boric acid, boric oxide and disodium tetraborates for industrial use. Determination of cobalt content. 2-nitroso-1-naphthol photometric method

TR-TSE

TS 2566-1977 BORIC ACID, BORIC OXIDE AND DISODIUM TETRABOBATES POR INDUSTRIAL USE-DETERMINATION OF CHROMIUM CONTENT - DIPHENYLCARBAZIDE PHOTOMETRIC METHOD
TS 2611-1977 EBON?TE - DETERMINATION OF HARDNESS BY MEANS OF A DUROMETER
TS 2569-1977 Boric Acid, Boric Oxide, Disodium Tetraborates, Sodium Perborates And Crude Sodium Borates For Industrial Use - Determination Of Iron Content 2,2' - Bipyridyl Photometric Method
TS 1809-1975 BORIC ACID, BORIC OXIDE, DISODIUM TETRABORATES AND CRUDE SODIUM BORATES FOR INDUSTRIAL USE — DETERMINATION OF SULPHUR COMPOUNDS — VOLUMETRIC METHOD
TS 2875-1977 Vulcanized Rubbers of Low Hardness (10 To 35IRHD) Determination of Hardness

Society of Automotive Engineers (SAE)

SAE J417-1983 Hardness Tests and Hardness Number Conversions
SAE AMS2433A-1989 ELECTROLESS NICKEL-THALLIUM-BORON OR NICKEL-BORON PLATING
SAE AMS2433C-2011 Plating, Nickel-Thallium-Boron or Nickel-Boron Electroless Deposition
SAE AMS2399-1991 ELECTROLESS NICKEL-BORON PLATING
SAE AMS2399A-2011 Electroless Nickel-Boron Plating

SAE - SAE International

SAE J417-2018 Hardness Tests and Hardness Number Conversions
SAE AMS2399C-2019 Electroless Nickel-Boron Plating
SAE AMS2399-1980 ELECTROLESS NICKEL-BORON PLATING

Japanese Industrial Standards Committee (JISC)

JIS K 8431:1961 Boron trioxide (boric anhydride)
JIS B 4130:1998 Diamond/CBN products -- Grain sizes of diamond or cubic boron nitride
JIS B 4130:1982 Grain sizes of diamond or cubic boron nitride

German Institute for Standardization

DIN 54387-2:2016 Testing of ceramic raw and basic materials - Chemical analysis of boron carbide, boron nitride, metal borides and elemental boron - Part 2: Determination of total boron, soluble boron compounds, HNO3-soluble boron in B4C, H2O2 soluble and insoluble fracti
DIN 54387-2:2016-12 Testing of ceramic raw and basic materials - Chemical analysis of boron carbide, boron nitride, metal borides and elemental boron - Part 2: Determination of total boron, soluble boron compounds, HNO<(Index)3>-soluble boron in B<(Index)4>C, ...
DIN 54387-2 E:2015-01 Testing of ceramic raw and basic materials - Chemical analysis of boron carbide, boron nitride, metal borides and elemental boron - Part 2: Determination of total boron, soluble boron compounds, HNO3-soluble boron in B4C, H2O2 soluble and insoluble fracti
DIN ISO 48-4:2021-02 Rubber, vulcanized or thermoplastic - Determination of hardness - Part 4: Indentation hardness by durometer method (Shore hardness) (ISO 48-4:2018)

RO-ASRO

STAS R 883-1982 Hardness conversion table
STAS 11333-1979 THERMOSETTING PLASTICS Hardness determination by Barcol durometer

Indonesia Standards

SNI 02-4959-1999 Boric fertilizer
SNI 06-4999-1999 Determination of hardness of vulcanized rubber by shore durometer

PT-IPQ

NP 1398-1976 Disodium tetraborate used in industry. Measurement of weight loss of sodium oxide and boron oxide at 900 degrees Celsius

VN-TCVN

TCVN 4651-1988 Sandstone.Determination of cerium oxide content

Association Francaise de Normalisation

NF T46-029:1976 Vulcanized rubbers of high hardness (85 to 100 irhd). Determination of hardness.
NF T46-028:1976 Vulcanized rubbers of low hardness (10 to 35 irhd). Determination of hardness.

South African Bureau of Standard

SANS 5870:2008 Hardness of vulcanized rubbers of hardness 30-95 IRH degrees
SANS 5870:1976 Hardness of vulcanized rubbers of hardness 30-95 IRH degrees

PL-PKN

PN-EN 17042-2018-07 P Fertilizers--Determination of boron in concentrations > 10 % using acidimetric titration

CZ-CSN

CSN 62 1433-1981 Vulcanized rubbers. Determination of hardness. (Hardness between 30 and 85 IRHD)

Danish Standards Foundation

DS/ISO 1818:1979 Vulcanized rubber of low hardness (10 to 35 IRHD). Determination of hardness
DS/ISO 1400:1979 Vulcanized rubbers of high hardness (85 to 100 IRHD). Determination of hardness