Bulletin 110 Complete

The page numbers refer to the pages in the pdf. (The numbers in brackets are those given in the actual bulletin)

3(1) Introduction

Hazardous chemicals manual published,

3(1) Performance testing of autoclaves

How to ensure your autoclave is still sterilising.

4(2) Oxygen meters

DIY circuits for making your own.

7(5) Ion exchange resin

Regenerating a mixed bed ion exchange resin

10(8) Surplus physics equipment

11(9) The short, short life of OHP lamp bulbs

Problems with bulb lifespans.

12(10) Address List

13(11) Bulletin Index, Nos 100 – 109

Bulletin 111 Complete

The page numbers refer to the pages in the pdf. (The numbers in brackets are those given in the actual bulletin)

3(1) Introduction

Integrated Science equipment list. Availability of surplus equipment, A.S.E. annual meeting,  Easter closing dates

5(3) Flammables Survey

Finding out the amount of flammables kept in schools

7(5) Pulse beat indicator

A new version of the apparatus. The milk straw has been replaced by an optical pointer, using a 10 x 5mm piece of plane mirrors

7(5) Scaler module for SSSERC timer/frequency meter

In Bulletin 101 we described some novel uses of the timer/frequency meter of Bulletins 86 and 87. Now we show how the unit can become a scaler, driven from a Geiger tube.

9(7) A non-commutating d.c. motor

A design for a commutator – less d.c. motor,  taken from a booklet, ‘Simple Physics Apparatus’ by R. F. Simpson

10(8) In The Workshop

A model to show the stability of a double-decker bus.

12(10) Trade News

14(12) Address List

Bulletin 112 Complete

The page numbers refer to the pages in the pdf. (The numbers in brackets are those given in the actual bulletin)

3(1) Introduction

SSSERC involvement in national safety committees,

3(1) Opinion

Micro-electronics in schools

5(3) Poisons

Storing poisons in schools

8(6) Sterilisation in microbiology

Using pressure cookers for sterilisation

12(10) Trade News 10.

13(11) Gating unit for scaler/timers

How to use of scaler/timers as light gates.

14(12) Address List

Bulletin 113 Complete

3(1) Introduction

Illness of Director, Surplus equipment ballot, Saturday morning closure, Corrections to ISO equipment list

3(1) Opinion

SSSERC services and the ‘customer’

4(2) Food and fuel calorimeters

Over the years there have been several reports of explosions occurring in food and fuel combustion calorimeters.

6(4) Microscope illumination

Theory and practice of illuminating microscope specimens.

11(9) Agricultural Science Equipment list now available

11(9) Surplus physics equipment

14(12) Address List

Bulletin 114 Complete

The page numbers refer to the pages in the pdf. (The numbers in brackets are those given in the actual bulletin)

3(1) Introduction

Cost index, Overseas subscriptions

3(1) Immersion heater ‘explosion’

An explosion occurred when a 12V immersion heater supplied by Griffin was being used to melt ice.

3(1) Textbook correction

Longmans have given notice of an error in their text “A Modern Course of Organic Chemistry”

4(2) BR. And livestock

A list of Scottish stations that will handle livestock.

5(3) Addendum to microscope illumination

We failed to caution about direct sunlight.

5(3) Combustion calorimeters

Making and using simple DIY calorimeters

8(6) Trade News

10(8) In the Workshop

How to make the various combustion calorimeters described earlier.

12(10) Moving coil: three-in-one model

Constructing a moving-coil instrument to model an ammeter, loudspeaker and microphone.

14(12) Address List

Bulletin 115 Complete

The page numbers refer to the pages in the pdf. (The numbers in brackets are those given in the actual bulletin)

3(1) Introduction

Overreacting to safety advice, Poor man’s frequency meter

3(1) Reducing metal oxides

A safe means of effecting rapid reduction both of lead and copper oxides with the aid of ‘meta’ blocks which consist of ethanal tetramer (metaldehyde)

6(4) Blood

Recommended blood sampling procedure

9(7) VCO (voltage controlled oscillator)

The voltage controlled oscillator as a SYS project

10(8) Scaler/frequency meter conversion

We were consulted by a school on how one might adapt the input to a scaler so that it operated as a frequency meter, and found it was a comparatively simple and cheap process

12(10) Display laboratory

The latest additions.

13(11) Centrifuge summary

A summary of tests on a number of centrifuges.

14(12)Address list

Bulletin 116 Complete

The page numbers refer to the pages in the pdf. (The numbers in brackets are those given in the actual bulletin)

3(1) Introduction

Surplus equipment and where to find it.

6(4) Leaf litter

Solutions to the organisational problems, if a number of classes carry out these practicals at about the same time.

8(6) Electronic balances

An investigation into their accuracy and suitability.

10(8) Addendum to article on the regeneration of mixed-bed resins in Bulletin 110

It seems some resins are not suitable for this method

11(9) Surplus physics equipment

13(11) A fire caused by an OHP

Due to focussing of the sun’s rays.

13(11) Centrifuges with open heads

Centrifuges with open rotating heads should be boxed in so that moving parts cannot be touched.

14(12) Address List

Bulletin 117 Complete

The page numbers refer to the pages in the pdf. (The numbers in brackets are those given in the actual bulletin)

3(1) Introduction

Carcinogenic hazards, Cost index, Holiday closing dates.

3(1) Carcinogenic hazards in school science  

The second of our articles from the ASE Safety Committee Materia1s and Processes Group, Possible carcinogenic hazards in Schoo1 science.

9(7) CLEAPSE Reports

A new batch of reports available.

10(8) Oxygen electrodes

How to care for WPA oxygen electrodes.

11(9) Trade News

12(10) In the Workshop

Safety modification to a microscope illuminator

14(12) Address List