JIS B6159:1985 pdfダウンロード。Universal Dividing Heads and Simple Dividing Heads 1.Scope This Japanese Industria1 Standards specifies universal dividing heads andsimple dividing heads used mainly for machining work,hereinafter referred toas the dividing heads. 2.Definition The meanings of the main terms used in this standard shall be as follows :(1) universal dividing head A device mainly mounted on a milling machineand used for dividing machining dimensions.This device can be usedfor both direct dividing and indirect dividing work. Further , its main spindle can be tilted. In addition , spiral cutting is possible when this device is attached witha mechanical feeding device.The dividing head...

JIS B6338:1985 pdfダウンロード。Test Code for Performanceand Accuracy of MachiningCenters(Vertical Type) 1Scope This Japanese Industrial Standard specifies the methods of running testand accuracy inspection of machining centres (vertical type) of the verticalmonoaxial type having automatic tool replacing devices (including the turrettype) and whose maximum travelling distance in the control axis direction iswithin 2000 mm. The units and numerical values given in { ]in this standardRemark:are in accordance with the gravitational system of units andare appended for reference. 2，Method of Running Test 2.1 Function Test 2.1.1 Function Test without Use of Numerical Control The function testof machining centres (vertical type) without use...

JIS B7121:1985 pdfダウンロード。Prism Binoculars Scope This Japanese Industrial Standard specifies the binoculars using prismas erecting optical system, hereinafter referred to as the “binoculars” Remarks 1.This standard applies also to prism type binoculars usinga plane reflecting mirror instead of prism. 2The units and numerical values given in { } in thisstandard are in accordance with the International Systemof Units (SI)，and are appended for reference. Definitions For the purposes of this standard, following definitions apply: variable power type binocularThe binocular capable of changing the magnification. zoom type binocular The binocular capable of changing con-tinuously the magnification without variation of diopter bymoving a...

JIS B8323:1985 pdfダウンロード。Water Ring Vacuum Pumps Scope This Japanese Industrial Standard specifies the water ring vacuumpumps(‘), hereinafter referred to as the “pumps”, for general uses of 20 to150 mm in suction opening bore which are directly connected by flexibleshaft joint with 50 Hz or 60 Hz three phase induction motor on a commonbed and are connected by y belt.Further, the gas to be handled by the pump shall, as a rule, be airat -10.C to 50C. Note (1) These pumps includes those of short time rating and thoseof continuous rating. The short time rating and continuousrating herein are in accordance...

JIS B8409:1985 pdfダウンロード。Pressure Type Solenoid Pumps for Oil Burners Scope This Japanese Industrial Standard specifies the pressure type fuel oilreciprocating solenoid pumps of not more than 25 l/h in the maximum dischargequantity (%)at a discharge pressure of 700 kPa [7 kgf/cm2], hereinafter referredto as the “pumps”, to be used mainly for burners for kerosene (1), hereinafterreferred to as the “oil” . Notes The kerosene is the kerosene No.1 specified in JIS K 2203. (2)The maximum discharge quantity is the maximum value of quantityof kerosene discharged from a burner nozzle or a throttlingmechanism corresponding thereto (see 8.1 and 8.3.1). All the...

JIS B8501:1985 pdfダウンロード。welded stee1 Tanks for oi1 storage Scope This Japanese Industrial Standard specifies the structures of tanks forstorage, under approximately atmospheric pressure, of petroleum which isliquid at a temperature not lower than atmospheric temperature and at theatmospheric pressure or of liquid similar thereto, hereinafter referred toas storage tanks, which are steel total welded circular cylinder storagetanks having fxed roof, floating roof or floating roof with fixed roof havingsufficient support force for supporting petroleum storage tank, and their bodyis assembled by welding on the ground where uniform foundation is provided.Further, this Standard applies exclusively to the body and attachmentsspecified in...

JIS C7035:1985 pdfダウンロード。Light Emitting Diodes(for lndication)、 1.scope This Japanese Industrial Standard specifies the single unit of visible light emitting diodes,(hereinafter referred to as the”light emitting diodes”) to be mainly used for indication ofelectronical equipment and apparatus. 2. Definitions For the purposes of this standard, the definitions given in JIS C 5001,JIS C 5700 andJIs C 7036 apply. 3.Type Designation 3.1Composition of ‘Type Designation As a rule,the type designation shall be composed in the following arrangement. 3.2Symbols 3.2.1 Classification of Quality Evaluation The symbols denoting the quality evaluation shall follow Table i. 3.2.2Class of Discrete Semiconductor DeviceSymbols denoting the class of...

JIS C7604:1985 pdfダウンロード。High Pressure Mercury Vapour Lamps 1.Scope This Japanese Industrial Standard specifies high pressure mercury vapourlamps principally utilizing the visible spectrum caused by mercury for lighting,hereinafter referred to as the “1amps” , to be operated by employing the ballastsspecified in JIs c 8110. 2.Definitions Besides in conformity with JIS Z8113 and JIS Z 8120, for the purposes ofthis standard, the following definitions apply : (1) rated wattage The rated wattage is the power marked on the lamp.(2)i starting A phenomenon to start electric arc discharge between main electrodes. . (3) warm-up time The time necessary for the lamp to...

JIS C7606:1985 pdfダウンロード。Negative-Glow Lamps 1.Scope This’Japanese Industrial Standard specifies the negative-glow lamps,hereinafter referred to as the “lamps” , to be used as indicators . The fluorescent glow lamps shall be included in this standard.2. Definitions For the purpose of this standard，besides in compliance with JIS.8113，thefollowing principal definitions apply : fluorescent glow lamp A. lamp which has fluorescent material layer applied inside of a glass bulb and rare gas，excite fluorescent materialby the ultraviolet radiation radiated by discharge of rare gas,and its luminescence is used as indicators. initial characteristics The starting voltage and extent of glow of a lampwhen operated using the...

JIS D4503:1985 pdfダウンロード。Windscreen Defrosting Systems for Trucks and Buses 1.scope This Japanese Industrial Standard specifies the defrosting performances and their testing methods of the windscreen defrostingsystems，hereinafter，referred to as the “defrosters” for the trucksor buses specified in JIS D 0101. Further，this standard may apply to the mechanisms same as trucks andbuses. Remark:In this standard，numerical values and units given in { } are in accordance with the Internationa1 System of Units(sI). 2.Definitions (1)For the purposes of this standard，the fo11owing definitions apply:(1)defrostThat operation which melts frost or ice covering the exterior surface of a day1ight opening,unti1 it becomes transparent or semitransparent state. (2)day1ight...